tkWinX.c
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- /*
- * tkWinX.c --
- *
- * This file contains Windows emulation procedures for X routines.
- *
- * Copyright (c) 1995-1996 Sun Microsystems, Inc.
- * Copyright (c) 1994 Software Research Associates, Inc.
- * Copyright (c) 1998-2000 by Scriptics Corporation.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tkWinX.c,v 1.25.2.9 2007/12/05 19:18:09 hobbs Exp $
- */
- #include "tkWinInt.h"
- /*
- * The w32api 1.1 package (included in Mingw 1.1) does not define _WIN32_IE
- * by default. Define it here to gain access to the InitCommonControlsEx API
- * in commctrl.h.
- */
- #ifndef _WIN32_IE
- #define _WIN32_IE 0x0300
- #endif
- #include <commctrl.h>
- /*
- * The zmouse.h file includes the definition for WM_MOUSEWHEEL.
- */
- #include <zmouse.h>
- /*
- * imm.h is needed by HandleIMEComposition
- */
- #include <imm.h>
- /*
- * WM_UNICHAR is a message for Unicode input on all windows systems.
- * Perhaps this definition should be moved in another file.
- */
- #ifndef WM_UNICHAR
- #define WM_UNICHAR 0x0109
- #define UNICODE_NOCHAR 0xFFFF
- #endif
- static TkWinProcs asciiProcs = {
- 0,
- (LRESULT (WINAPI *)(WNDPROC lpPrevWndFunc, HWND hWnd, UINT Msg,
- WPARAM wParam, LPARAM lParam)) CallWindowProcA,
- (LRESULT (WINAPI *)(HWND hWnd, UINT Msg, WPARAM wParam,
- LPARAM lParam)) DefWindowProcA,
- (ATOM (WINAPI *)(CONST WNDCLASS *lpWndClass)) RegisterClassA,
- (BOOL (WINAPI *)(HWND hWnd, LPCTSTR lpString)) SetWindowTextA,
- (HWND (WINAPI *)(DWORD dwExStyle, LPCTSTR lpClassName,
- LPCTSTR lpWindowName, DWORD dwStyle, int x, int y,
- int nWidth, int nHeight, HWND hWndParent, HMENU hMenu,
- HINSTANCE hInstance, LPVOID lpParam)) CreateWindowExA,
- (BOOL (WINAPI *)(HMENU hMenu, UINT uPosition, UINT uFlags,
- UINT uIDNewItem, LPCTSTR lpNewItem)) InsertMenuA,
- };
- static TkWinProcs unicodeProcs = {
- 1,
- (LRESULT (WINAPI *)(WNDPROC lpPrevWndFunc, HWND hWnd, UINT Msg,
- WPARAM wParam, LPARAM lParam)) CallWindowProcW,
- (LRESULT (WINAPI *)(HWND hWnd, UINT Msg, WPARAM wParam,
- LPARAM lParam)) DefWindowProcW,
- (ATOM (WINAPI *)(CONST WNDCLASS *lpWndClass)) RegisterClassW,
- (BOOL (WINAPI *)(HWND hWnd, LPCTSTR lpString)) SetWindowTextW,
- (HWND (WINAPI *)(DWORD dwExStyle, LPCTSTR lpClassName,
- LPCTSTR lpWindowName, DWORD dwStyle, int x, int y,
- int nWidth, int nHeight, HWND hWndParent, HMENU hMenu,
- HINSTANCE hInstance, LPVOID lpParam)) CreateWindowExW,
- (BOOL (WINAPI *)(HMENU hMenu, UINT uPosition, UINT uFlags,
- UINT uIDNewItem, LPCTSTR lpNewItem)) InsertMenuW,
- };
- TkWinProcs *tkWinProcs;
- /*
- * Declarations of static variables used in this file.
- */
- static char winScreenName[] = ":0"; /* Default name of windows display. */
- static HINSTANCE tkInstance = NULL; /* Application instance handle. */
- static int childClassInitialized; /* Registered child class? */
- static WNDCLASS childClass; /* Window class for child windows. */
- static int tkPlatformId = 0; /* version of Windows platform */
- static int tkWinTheme = 0; /* See TkWinGetPlatformTheme */
- static Tcl_Encoding keyInputEncoding = NULL;/* The current character
- * encoding for keyboard input */
- static int keyInputCharset = -1; /* The Win32 CHARSET for the keyboard
- * encoding */
- static Tcl_Encoding unicodeEncoding = NULL; /* unicode encoding */
- /*
- * Thread local storage. Notice that now each thread must have its
- * own TkDisplay structure, since this structure contains most of
- * the thread-specific date for threads.
- */
- typedef struct ThreadSpecificData {
- TkDisplay *winDisplay; /* TkDisplay structure that *
- * represents Windows screen. */
- int updatingClipboard; /* If 1, we are updating the clipboard */
- } ThreadSpecificData;
- static Tcl_ThreadDataKey dataKey;
- /*
- * Forward declarations of procedures used in this file.
- */
- static void GenerateXEvent _ANSI_ARGS_((HWND hwnd, UINT message,
- WPARAM wParam, LPARAM lParam));
- static unsigned int GetState _ANSI_ARGS_((UINT message, WPARAM wParam,
- LPARAM lParam));
- static void GetTranslatedKey _ANSI_ARGS_((XKeyEvent *xkey));
- static void UpdateInputLanguage _ANSI_ARGS_((int charset));
- static int HandleIMEComposition _ANSI_ARGS_((HWND hwnd,
- LPARAM lParam));
- /*
- *----------------------------------------------------------------------
- *
- * TkGetServerInfo --
- *
- * Given a window, this procedure returns information about
- * the window server for that window. This procedure provides
- * the guts of the "winfo server" command.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- void
- TkGetServerInfo(interp, tkwin)
- Tcl_Interp *interp; /* The server information is returned in
- * this interpreter's result. */
- Tk_Window tkwin; /* Token for window; this selects a
- * particular display and server. */
- {
- char buffer[60];
- OSVERSIONINFO os;
- os.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
- GetVersionEx(&os);
- sprintf(buffer, "Windows %d.%d %d %s", os.dwMajorVersion,
- os.dwMinorVersion, os.dwBuildNumber,
- #ifdef _WIN64
- "Win64"
- #else
- "Win32"
- #endif
- );
- Tcl_SetResult(interp, buffer, TCL_VOLATILE);
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_GetHINSTANCE --
- *
- * Retrieves the global instance handle used by the Tk library.
- *
- * Results:
- * Returns the global instance handle.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- HINSTANCE
- Tk_GetHINSTANCE()
- {
- if (tkInstance == NULL) {
- tkInstance = GetModuleHandle(NULL);
- }
- return tkInstance;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinSetHINSTANCE --
- *
- * Sets the global instance handle used by the Tk library.
- * This should be called by DllMain.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- void
- TkWinSetHINSTANCE(hInstance)
- HINSTANCE hInstance;
- {
- tkInstance = hInstance;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinXInit --
- *
- * Initialize Xlib emulation layer.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Sets up various data structures.
- *
- *----------------------------------------------------------------------
- */
- void
- TkWinXInit(hInstance)
- HINSTANCE hInstance;
- {
- CHARSETINFO lpCs;
- DWORD lpCP;
- if (childClassInitialized != 0) {
- return;
- }
- childClassInitialized = 1;
- if (TkWinGetPlatformId() == VER_PLATFORM_WIN32_NT) {
- /*
- * This is necessary to enable the use of themeable elements on XP,
- * so we don't even try and call it for Win9*.
- */
- INITCOMMONCONTROLSEX comctl;
- ZeroMemory(&comctl, sizeof(comctl));
- (void) InitCommonControlsEx(&comctl);
- tkWinProcs = &unicodeProcs;
- } else {
- tkWinProcs = &asciiProcs;
- }
- childClass.style = CS_HREDRAW | CS_VREDRAW;
- childClass.cbClsExtra = 0;
- childClass.cbWndExtra = 0;
- childClass.hInstance = hInstance;
- childClass.hbrBackground = NULL;
- childClass.lpszMenuName = NULL;
- /*
- * Register the Child window class.
- */
- childClass.lpszClassName = TK_WIN_CHILD_CLASS_NAME;
- childClass.lpfnWndProc = TkWinChildProc;
- childClass.hIcon = NULL;
- childClass.hCursor = NULL;
- if (!RegisterClass(&childClass)) {
- panic("Unable to register TkChild class");
- }
- /*
- * Initialize input language info
- */
- if (GetLocaleInfo(LANGIDFROMLCID(GetKeyboardLayout(0)),
- LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER,
- (LPTSTR) &lpCP, sizeof(lpCP)/sizeof(TCHAR))
- && TranslateCharsetInfo((DWORD *)lpCP, &lpCs, TCI_SRCCODEPAGE)) {
- UpdateInputLanguage(lpCs.ciCharset);
- }
- /*
- * Make sure we cleanup on finalize.
- */
- TkCreateExitHandler(TkWinXCleanup, (ClientData) hInstance);
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinXCleanup --
- *
- * Removes the registered classes for Tk.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Removes window classes from the system.
- *
- *----------------------------------------------------------------------
- */
- void
- TkWinXCleanup(clientData)
- ClientData clientData;
- {
- HINSTANCE hInstance = (HINSTANCE) clientData;
- /*
- * Clean up our own class.
- */
-
- if (childClassInitialized) {
- childClassInitialized = 0;
- UnregisterClass(TK_WIN_CHILD_CLASS_NAME, hInstance);
- }
- if (unicodeEncoding != NULL) {
- Tcl_FreeEncoding(unicodeEncoding);
- unicodeEncoding = NULL;
- }
- /*
- * And let the window manager clean up its own class(es).
- */
-
- TkWinWmCleanup(hInstance);
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinGetPlatformId --
- *
- * Determines whether running under NT, 95, or Win32s, to allow
- * runtime conditional code. Win32s is no longer supported.
- *
- * Results:
- * The return value is one of:
- * VER_PLATFORM_WIN32s Win32s on Windows 3.1.
- * VER_PLATFORM_WIN32_WINDOWS Win32 on Windows 95.
- * VER_PLATFORM_WIN32_NT Win32 on Windows NT
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- int
- TkWinGetPlatformId()
- {
- if (tkPlatformId == 0) {
- OSVERSIONINFO os;
- os.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
- GetVersionEx(&os);
- tkPlatformId = os.dwPlatformId;
-
- /* Set tkWinTheme to be TK_THEME_WIN_XP or TK_THEME_WIN_CLASSIC.
- * The TK_THEME_WIN_CLASSIC could be set even when running
- * under XP if the windows classic theme was selected. */
- if ((os.dwPlatformId == VER_PLATFORM_WIN32_NT) &&
- (os.dwMajorVersion == 5 && os.dwMinorVersion == 1)) {
- HKEY hKey;
- LPCSTR szSubKey = TEXT("Control Panel\Appearance");
- LPCSTR szCurrent = TEXT("Current");
- DWORD dwSize = 200;
- char pBuffer[200];
- memset(pBuffer, 0, dwSize);
- if (RegOpenKeyEx(HKEY_CURRENT_USER, szSubKey, 0L,
- KEY_READ, &hKey) != ERROR_SUCCESS) {
- tkWinTheme = TK_THEME_WIN_XP;
- } else {
- RegQueryValueEx(hKey, szCurrent, NULL, NULL, pBuffer, &dwSize);
- RegCloseKey(hKey);
- if (strcmp(pBuffer, "Windows Standard") == 0) {
- tkWinTheme = TK_THEME_WIN_CLASSIC;
- } else {
- tkWinTheme = TK_THEME_WIN_XP;
- }
- }
- } else {
- tkWinTheme = TK_THEME_WIN_CLASSIC;
- }
- }
- return tkPlatformId;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinGetPlatformTheme --
- *
- * Return the Windows drawing style we should be using.
- *
- * Results:
- * The return value is one of:
- * TK_THEME_WIN_CLASSIC 95/98/NT or XP in classic mode
- * TK_THEME_WIN_XP XP not in classic mode
- *
- * Side effects:
- * Could invoke TkWinGetPlatformId.
- *
- *----------------------------------------------------------------------
- */
- int
- TkWinGetPlatformTheme()
- {
- if (tkPlatformId == 0) {
- TkWinGetPlatformId();
- }
- return tkWinTheme;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkGetDefaultScreenName --
- *
- * Returns the name of the screen that Tk should use during
- * initialization.
- *
- * Results:
- * Returns a statically allocated string.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- CONST char *
- TkGetDefaultScreenName(interp, screenName)
- Tcl_Interp *interp; /* Not used. */
- CONST char *screenName; /* If NULL, use default string. */
- {
- if ((screenName == NULL) || (screenName[0] == ' ')) {
- screenName = winScreenName;
- }
- return screenName;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinDisplayChanged --
- *
- * Called to set up initial screen info or when an event indicated
- * display (screen) change.
- *
- * Results:
- * None.
- *
- * Side effects:
- * May change info regarding the screen.
- *
- *----------------------------------------------------------------------
- */
- void
- TkWinDisplayChanged(Display *display)
- {
- HDC dc;
- Screen *screen;
- if (display == NULL || display->screens == NULL) {
- return;
- }
- screen = display->screens;
- dc = GetDC(NULL);
- screen->width = GetDeviceCaps(dc, HORZRES);
- screen->height = GetDeviceCaps(dc, VERTRES);
- screen->mwidth = MulDiv(screen->width, 254,
- GetDeviceCaps(dc, LOGPIXELSX) * 10);
- screen->mheight = MulDiv(screen->height, 254,
- GetDeviceCaps(dc, LOGPIXELSY) * 10);
- /*
- * On windows, when creating a color bitmap, need two pieces of
- * information: the number of color planes and the number of pixels per
- * plane. Need to remember both quantities so that when constructing an
- * HBITMAP for offscreen rendering, we can specify the correct value for
- * the number of planes. Otherwise the HBITMAP won't be compatible with
- * the HWND and we'll just get blank spots copied onto the screen.
- */
- screen->ext_data = (XExtData *) GetDeviceCaps(dc, PLANES);
- screen->root_depth = GetDeviceCaps(dc, BITSPIXEL) * (int) screen->ext_data;
- if (screen->root_visual != NULL) {
- ckfree((char *) screen->root_visual);
- }
- screen->root_visual = (Visual *) ckalloc(sizeof(Visual));
- screen->root_visual->visualid = 0;
- if (GetDeviceCaps(dc, RASTERCAPS) & RC_PALETTE) {
- screen->root_visual->map_entries = GetDeviceCaps(dc, SIZEPALETTE);
- screen->root_visual->class = PseudoColor;
- screen->root_visual->red_mask = 0x0;
- screen->root_visual->green_mask = 0x0;
- screen->root_visual->blue_mask = 0x0;
- } else if (screen->root_depth == 4) {
- screen->root_visual->class = StaticColor;
- screen->root_visual->map_entries = 16;
- } else if (screen->root_depth == 8) {
- screen->root_visual->class = StaticColor;
- screen->root_visual->map_entries = 256;
- } else if (screen->root_depth == 12) {
- screen->root_visual->class = TrueColor;
- screen->root_visual->map_entries = 32;
- screen->root_visual->red_mask = 0xf0;
- screen->root_visual->green_mask = 0xf000;
- screen->root_visual->blue_mask = 0xf00000;
- } else if (screen->root_depth == 16) {
- screen->root_visual->class = TrueColor;
- screen->root_visual->map_entries = 64;
- screen->root_visual->red_mask = 0xf8;
- screen->root_visual->green_mask = 0xfc00;
- screen->root_visual->blue_mask = 0xf80000;
- } else if (screen->root_depth >= 24) {
- screen->root_visual->class = TrueColor;
- screen->root_visual->map_entries = 256;
- screen->root_visual->red_mask = 0xff;
- screen->root_visual->green_mask = 0xff00;
- screen->root_visual->blue_mask = 0xff0000;
- }
- screen->root_visual->bits_per_rgb = screen->root_depth;
- ReleaseDC(NULL, dc);
- if (screen->cmap != None) {
- XFreeColormap(display, screen->cmap);
- }
- screen->cmap = XCreateColormap(display, None, screen->root_visual,
- AllocNone);
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkpOpenDisplay --
- *
- * Create the Display structure and fill it with device
- * specific information.
- *
- * Results:
- * Returns a TkDisplay structure on success or NULL on failure.
- *
- * Side effects:
- * Allocates a new TkDisplay structure.
- *
- *----------------------------------------------------------------------
- */
- TkDisplay *
- TkpOpenDisplay(display_name)
- CONST char *display_name;
- {
- Screen *screen;
- TkWinDrawable *twdPtr;
- Display *display;
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- if (tsdPtr->winDisplay != NULL) {
- if (strcmp(tsdPtr->winDisplay->display->display_name, display_name)
- == 0) {
- return tsdPtr->winDisplay;
- } else {
- return NULL;
- }
- }
- display = (Display *) ckalloc(sizeof(Display));
- ZeroMemory(display, sizeof(Display));
- display->display_name = (char *) ckalloc(strlen(display_name)+1);
- strcpy(display->display_name, display_name);
- display->cursor_font = 1;
- display->nscreens = 1;
- display->request = 1;
- display->qlen = 0;
- screen = (Screen *) ckalloc(sizeof(Screen));
- ZeroMemory(screen, sizeof(Screen));
- screen->display = display;
- /*
- * Set up the root window.
- */
- twdPtr = (TkWinDrawable*) ckalloc(sizeof(TkWinDrawable));
- if (twdPtr == NULL) {
- return None;
- }
- twdPtr->type = TWD_WINDOW;
- twdPtr->window.winPtr = NULL;
- twdPtr->window.handle = NULL;
- screen->root = (Window)twdPtr;
- /*
- * Note that these pixel values are not palette relative.
- */
- screen->white_pixel = RGB(255, 255, 255);
- screen->black_pixel = RGB(0, 0, 0);
- screen->cmap = None;
- display->screens = screen;
- display->nscreens = 1;
- display->default_screen = 0;
- TkWinDisplayChanged(display);
- tsdPtr->winDisplay = (TkDisplay *) ckalloc(sizeof(TkDisplay));
- ZeroMemory(tsdPtr->winDisplay, sizeof(TkDisplay));
- tsdPtr->winDisplay->display = display;
- tsdPtr->updatingClipboard = FALSE;
- return tsdPtr->winDisplay;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkpCloseDisplay --
- *
- * Closes and deallocates a Display structure created with the
- * TkpOpenDisplay function.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Frees up memory.
- *
- *----------------------------------------------------------------------
- */
- void
- TkpCloseDisplay(dispPtr)
- TkDisplay *dispPtr;
- {
- Display *display = dispPtr->display;
- HWND hwnd;
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- if (dispPtr != tsdPtr->winDisplay) {
- panic("TkpCloseDisplay: tried to call TkpCloseDisplay on another display");
- return;
- }
- /*
- * Force the clipboard to be rendered if we are the clipboard owner.
- */
-
- if (dispPtr->clipWindow) {
- hwnd = Tk_GetHWND(Tk_WindowId(dispPtr->clipWindow));
- if (GetClipboardOwner() == hwnd) {
- OpenClipboard(hwnd);
- EmptyClipboard();
- TkWinClipboardRender(dispPtr, CF_TEXT);
- CloseClipboard();
- }
- }
- tsdPtr->winDisplay = NULL;
- if (display->display_name != (char *) NULL) {
- ckfree(display->display_name);
- }
- if (display->screens != (Screen *) NULL) {
- if (display->screens->root_visual != NULL) {
- ckfree((char *) display->screens->root_visual);
- }
- if (display->screens->root != None) {
- ckfree((char *) display->screens->root);
- }
- if (display->screens->cmap != None) {
- XFreeColormap(display, display->screens->cmap);
- }
- ckfree((char *) display->screens);
- }
- ckfree((char *) display);
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkClipCleanup --
- *
- * This procedure is called to cleanup resources associated with
- * claiming clipboard ownership and for receiving selection get
- * results. This function is called in tkWindow.c. This has to be
- * called by the display cleanup function because we still need the
- * access display elements.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Resources are freed - the clipboard may no longer be used.
- *
- *----------------------------------------------------------------------
- */
- void
- TkClipCleanup(dispPtr)
- TkDisplay *dispPtr; /* display associated with clipboard */
- {
- if (dispPtr->clipWindow != NULL) {
- /*
- * Force the clipboard to be rendered if we are the clipboard owner.
- */
- HWND hwnd = Tk_GetHWND(Tk_WindowId(dispPtr->clipWindow));
- if (GetClipboardOwner() == hwnd) {
- OpenClipboard(hwnd);
- EmptyClipboard();
- TkWinClipboardRender(dispPtr, CF_TEXT);
- CloseClipboard();
- }
- Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom,
- dispPtr->applicationAtom);
- Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom,
- dispPtr->windowAtom);
- Tk_DestroyWindow(dispPtr->clipWindow);
- Tcl_Release((ClientData) dispPtr->clipWindow);
- dispPtr->clipWindow = NULL;
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * XBell --
- *
- * Generate a beep.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Plays a sounds out the system speakers.
- *
- *----------------------------------------------------------------------
- */
- void
- XBell(display, percent)
- Display* display;
- int percent;
- {
- MessageBeep(MB_OK);
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinChildProc --
- *
- * Callback from Windows whenever an event occurs on a child
- * window.
- *
- * Results:
- * Standard Windows return value.
- *
- * Side effects:
- * May process events off the Tk event queue.
- *
- *----------------------------------------------------------------------
- */
- LRESULT CALLBACK
- TkWinChildProc(hwnd, message, wParam, lParam)
- HWND hwnd;
- UINT message;
- WPARAM wParam;
- LPARAM lParam;
- {
- LRESULT result;
- switch (message) {
- case WM_INPUTLANGCHANGE:
- UpdateInputLanguage(wParam);
- result = 1;
- break;
- case WM_IME_COMPOSITION:
- result = 0;
- if (HandleIMEComposition(hwnd, lParam) == 0) {
- result = DefWindowProc(hwnd, message, wParam, lParam);
- }
- break;
- case WM_SETCURSOR:
- /*
- * Short circuit the WM_SETCURSOR message since we set
- * the cursor elsewhere.
- */
- result = TRUE;
- break;
- case WM_CREATE:
- case WM_ERASEBKGND:
- result = 0;
- break;
- case WM_PAINT:
- GenerateXEvent(hwnd, message, wParam, lParam);
- result = DefWindowProc(hwnd, message, wParam, lParam);
- break;
- case TK_CLAIMFOCUS:
- case TK_GEOMETRYREQ:
- case TK_ATTACHWINDOW:
- case TK_DETACHWINDOW:
- result = TkWinEmbeddedEventProc(hwnd, message, wParam, lParam);
- break;
- case WM_UNICHAR:
- if (wParam == UNICODE_NOCHAR) {
- /* If wParam is UNICODE_NOCHAR and the application processes
- * this message, then return TRUE. */
- result = 1;
- } else {
- /* If the event was translated, we must return 0 */
- if (Tk_TranslateWinEvent(hwnd, message, wParam, lParam,
- &result)) {
- result = 0;
- } else {
- result = 1;
- }
- }
- break;
- default:
- if (!Tk_TranslateWinEvent(hwnd, message, wParam, lParam,
- &result)) {
- result = DefWindowProc(hwnd, message, wParam, lParam);
- }
- break;
- }
- /*
- * Handle any newly queued events before returning control to Windows.
- */
- Tcl_ServiceAll();
- return result;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_TranslateWinEvent --
- *
- * This function is called by widget window procedures to handle
- * the translation from Win32 events to Tk events.
- *
- * Results:
- * Returns 1 if the event was handled, else 0.
- *
- * Side effects:
- * Depends on the event.
- *
- *----------------------------------------------------------------------
- */
- int
- Tk_TranslateWinEvent(hwnd, message, wParam, lParam, resultPtr)
- HWND hwnd;
- UINT message;
- WPARAM wParam;
- LPARAM lParam;
- LRESULT *resultPtr;
- {
- *resultPtr = 0;
- switch (message) {
- case WM_RENDERFORMAT: {
- TkWindow *winPtr = (TkWindow *) Tk_HWNDToWindow(hwnd);
- if (winPtr) {
- TkWinClipboardRender(winPtr->dispPtr, wParam);
- }
- return 1;
- }
- case WM_COMMAND:
- case WM_NOTIFY:
- case WM_VSCROLL:
- case WM_HSCROLL: {
- /*
- * Reflect these messages back to the sender so that they
- * can be handled by the window proc for the control. Note
- * that we need to be careful not to reflect a message that
- * is targeted to this window, or we will loop.
- */
- HWND target = (message == WM_NOTIFY)
- ? ((NMHDR*)lParam)->hwndFrom : (HWND) lParam;
- if (target && target != hwnd) {
- *resultPtr = SendMessage(target, message, wParam, lParam);
- return 1;
- }
- break;
- }
- case WM_LBUTTONDOWN:
- case WM_LBUTTONDBLCLK:
- case WM_MBUTTONDOWN:
- case WM_MBUTTONDBLCLK:
- case WM_RBUTTONDOWN:
- case WM_RBUTTONDBLCLK:
- case WM_LBUTTONUP:
- case WM_MBUTTONUP:
- case WM_RBUTTONUP:
- case WM_MOUSEMOVE:
- Tk_PointerEvent(hwnd, (short) LOWORD(lParam),
- (short) HIWORD(lParam));
- return 1;
- case WM_CLOSE:
- case WM_SETFOCUS:
- case WM_KILLFOCUS:
- case WM_DESTROYCLIPBOARD:
- case WM_UNICHAR:
- case WM_CHAR:
- case WM_SYSKEYDOWN:
- case WM_SYSKEYUP:
- case WM_KEYDOWN:
- case WM_KEYUP:
- case WM_MOUSEWHEEL:
- GenerateXEvent(hwnd, message, wParam, lParam);
- return 1;
- case WM_MENUCHAR:
- GenerateXEvent(hwnd, message, wParam, lParam);
- /* MNC_CLOSE is the only one that looks right. This is a hack. */
- *resultPtr = MAKELONG (0, MNC_CLOSE);
- return 1;
- }
- return 0;
- }
- /*
- *----------------------------------------------------------------------
- *
- * GenerateXEvent --
- *
- * This routine generates an X event from the corresponding
- * Windows event.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Queues one or more X events.
- *
- *----------------------------------------------------------------------
- */
- static void
- GenerateXEvent(hwnd, message, wParam, lParam)
- HWND hwnd;
- UINT message;
- WPARAM wParam;
- LPARAM lParam;
- {
- XEvent event;
- TkWindow *winPtr = (TkWindow *)Tk_HWNDToWindow(hwnd);
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- if (!winPtr || winPtr->window == None) {
- return;
- }
- event.xany.serial = winPtr->display->request++;
- event.xany.send_event = False;
- event.xany.display = winPtr->display;
- event.xany.window = winPtr->window;
- switch (message) {
- case WM_PAINT: {
- PAINTSTRUCT ps;
- event.type = Expose;
- BeginPaint(hwnd, &ps);
- event.xexpose.x = ps.rcPaint.left;
- event.xexpose.y = ps.rcPaint.top;
- event.xexpose.width = ps.rcPaint.right - ps.rcPaint.left;
- event.xexpose.height = ps.rcPaint.bottom - ps.rcPaint.top;
- EndPaint(hwnd, &ps);
- event.xexpose.count = 0;
- break;
- }
- case WM_CLOSE:
- event.type = ClientMessage;
- event.xclient.message_type =
- Tk_InternAtom((Tk_Window) winPtr, "WM_PROTOCOLS");
- event.xclient.format = 32;
- event.xclient.data.l[0] =
- Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW");
- break;
- case WM_SETFOCUS:
- case WM_KILLFOCUS: {
- TkWindow *otherWinPtr = (TkWindow *)Tk_HWNDToWindow((HWND) wParam);
- /*
- * Compare toplevel windows to avoid reporting focus
- * changes within the same toplevel.
- */
- while (!(winPtr->flags & TK_TOP_LEVEL)) {
- winPtr = winPtr->parentPtr;
- if (winPtr == NULL) {
- return;
- }
- }
- while (otherWinPtr && !(otherWinPtr->flags & TK_TOP_LEVEL)) {
- otherWinPtr = otherWinPtr->parentPtr;
- }
- /*
- * Do a catch-all Tk_SetCaretPos here to make sure that the
- * window receiving focus sets the caret at least once.
- */
- if (message == WM_SETFOCUS) {
- Tk_SetCaretPos((Tk_Window) winPtr, 0, 0, 0);
- }
- if (otherWinPtr == winPtr) {
- return;
- }
- event.xany.window = winPtr->window;
- event.type = (message == WM_SETFOCUS) ? FocusIn : FocusOut;
- event.xfocus.mode = NotifyNormal;
- event.xfocus.detail = NotifyNonlinear;
- /*
- * Destroy the caret if we own it. If we are moving to another Tk
- * window, it will reclaim and reposition it with Tk_SetCaretPos.
- */
- if (message == WM_KILLFOCUS) {
- DestroyCaret();
- }
- break;
- }
- case WM_DESTROYCLIPBOARD:
- if (tsdPtr->updatingClipboard == TRUE) {
- /*
- * We want to avoid this event if we are the ones that caused
- * this event.
- */
- return;
- }
- event.type = SelectionClear;
- event.xselectionclear.selection =
- Tk_InternAtom((Tk_Window)winPtr, "CLIPBOARD");
- event.xselectionclear.time = TkpGetMS();
- break;
- case WM_MOUSEWHEEL:
- /*
- * The mouse wheel event is closer to a key event than a
- * mouse event in that the message is sent to the window
- * that has focus.
- */
- case WM_CHAR:
- case WM_UNICHAR:
- case WM_SYSKEYDOWN:
- case WM_SYSKEYUP:
- case WM_KEYDOWN:
- case WM_KEYUP: {
- unsigned int state = GetState(message, wParam, lParam);
- Time time = TkpGetMS();
- POINT clientPoint;
- POINTS rootPoint; /* Note: POINT and POINTS are different */
- DWORD msgPos;
- /*
- * Compute the screen and window coordinates of the event.
- */
- msgPos = GetMessagePos();
- rootPoint = MAKEPOINTS(msgPos);
- clientPoint.x = rootPoint.x;
- clientPoint.y = rootPoint.y;
- ScreenToClient(hwnd, &clientPoint);
- /*
- * Set up the common event fields.
- */
- event.xbutton.root = RootWindow(winPtr->display,
- winPtr->screenNum);
- event.xbutton.subwindow = None;
- event.xbutton.x = clientPoint.x;
- event.xbutton.y = clientPoint.y;
- event.xbutton.x_root = rootPoint.x;
- event.xbutton.y_root = rootPoint.y;
- event.xbutton.state = state;
- event.xbutton.time = time;
- event.xbutton.same_screen = True;
- /*
- * Now set up event specific fields.
- */
- switch (message) {
- case WM_MOUSEWHEEL:
- /*
- * We have invented a new X event type to handle
- * this event. It still uses the KeyPress struct.
- * However, the keycode field has been overloaded
- * to hold the zDelta of the wheel. Set nbytes to 0
- * to prevent conversion of the keycode to a keysym
- * in TkpGetString. [Bug 1118340].
- */
- event.type = MouseWheelEvent;
- event.xany.send_event = -1;
- event.xkey.nbytes = 0;
- event.xkey.keycode = (short) HIWORD(wParam);
- break;
- case WM_SYSKEYDOWN:
- case WM_KEYDOWN:
- /*
- * Check for translated characters in the event queue.
- * Setting xany.send_event to -1 indicates to the
- * Windows implementation of TkpGetString() that this
- * event was generated by windows and that the Windows
- * extension xkey.trans_chars is filled with the
- * MBCS characters that came from the TranslateMessage
- * call.
- */
- event.type = KeyPress;
- event.xany.send_event = -1;
- event.xkey.keycode = wParam;
- GetTranslatedKey(&event.xkey);
- break;
- case WM_SYSKEYUP:
- case WM_KEYUP:
- /*
- * We don't check for translated characters on keyup
- * because Tk won't know what to do with them. Instead, we
- * wait for the WM_CHAR messages which will follow.
- */
- event.type = KeyRelease;
- event.xkey.keycode = wParam;
- event.xkey.nbytes = 0;
- break;
- case WM_CHAR:
- /*
- * Synthesize both a KeyPress and a KeyRelease.
- * Strings generated by Input Method Editor are handled
- * in the following manner:
- * 1. A series of WM_KEYDOWN & WM_KEYUP messages that
- * cause GetTranslatedKey() to be called and return
- * immediately because the WM_KEYDOWNs have no
- * associated WM_CHAR messages -- the IME window is
- * accumulating the characters and translating them
- * itself. In the "bind" command, you get an event
- * with a mystery keysym and %A == "" for each
- * WM_KEYDOWN that actually was meant for the IME.
- * 2. A WM_KEYDOWN corresponding to the "confirm typing"
- * character. This causes GetTranslatedKey() to be
- * called.
- * 3. A WM_IME_NOTIFY message saying that the IME is
- * done. A side effect of this message is that
- * GetTranslatedKey() thinks this means that there
- * are no WM_CHAR messages and returns immediately.
- * In the "bind" command, you get an another event
- * with a mystery keysym and %A == "".
- * 4. A sequence of WM_CHAR messages that correspond to
- * the characters in the IME window. A bunch of
- * simulated KeyPress/KeyRelease events will be
- * generated, one for each character. Adjacent
- * WM_CHAR messages may actually specify the high
- * and low bytes of a multi-byte character -- in that
- * case the two WM_CHAR messages will be combined into
- * one event. It is the event-consumer's
- * responsibility to convert the string returned from
- * XLookupString from system encoding to UTF-8.
- * 5. And finally we get the WM_KEYUP for the "confirm
- * typing" character.
- */
- event.type = KeyPress;
- event.xany.send_event = -1;
- event.xkey.keycode = 0;
- event.xkey.nbytes = 1;
- event.xkey.trans_chars[0] = (char) wParam;
- if (IsDBCSLeadByte((BYTE) wParam)) {
- MSG msg;
- if ((PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) != 0)
- && (msg.message == WM_CHAR)) {
- GetMessage(&msg, NULL, 0, 0);
- event.xkey.nbytes = 2;
- event.xkey.trans_chars[1] = (char) msg.wParam;
- }
- }
- Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
- event.type = KeyRelease;
- break;
- case WM_UNICHAR: {
- char buffer[TCL_UTF_MAX+1];
- int i;
- event.type = KeyPress;
- event.xany.send_event = -3;
- event.xkey.keycode = wParam;
- event.xkey.nbytes = Tcl_UniCharToUtf(wParam, buffer);
- for (i=0; i<event.xkey.nbytes && i<TCL_UTF_MAX; ++i) {
- event.xkey.trans_chars[i] = buffer[i];
- }
- Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
- event.type = KeyRelease;
- break;
- }
- }
- break;
- }
- default:
- return;
- }
- Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
- }
- /*
- *----------------------------------------------------------------------
- *
- * GetState --
- *
- * This function constructs a state mask for the mouse buttons
- * and modifier keys as they were before the event occured.
- *
- * Results:
- * Returns a composite value of all the modifier and button state
- * flags that were set at the time the event occurred.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- static unsigned int
- GetState(message, wParam, lParam)
- UINT message; /* Win32 message type */
- WPARAM wParam; /* wParam of message, used if key message */
- LPARAM lParam; /* lParam of message, used if key message */
- {
- int mask;
- int prevState; /* 1 if key was previously down */
- unsigned int state = TkWinGetModifierState();
- /*
- * If the event is a key press or release, we check for modifier
- * keys so we can report the state of the world before the event.
- */
- if (message == WM_SYSKEYDOWN || message == WM_KEYDOWN
- || message == WM_SYSKEYUP || message == WM_KEYUP) {
- mask = 0;
- prevState = HIWORD(lParam) & KF_REPEAT;
- switch(wParam) {
- case VK_SHIFT:
- mask = ShiftMask;
- break;
- case VK_CONTROL:
- mask = ControlMask;
- break;
- case VK_MENU:
- mask = ALT_MASK;
- break;
- case VK_CAPITAL:
- if (message == WM_SYSKEYDOWN || message == WM_KEYDOWN) {
- mask = LockMask;
- prevState = ((state & mask) ^ prevState) ? 0 : 1;
- }
- break;
- case VK_NUMLOCK:
- if (message == WM_SYSKEYDOWN || message == WM_KEYDOWN) {
- mask = Mod1Mask;
- prevState = ((state & mask) ^ prevState) ? 0 : 1;
- }
- break;
- case VK_SCROLL:
- if (message == WM_SYSKEYDOWN || message == WM_KEYDOWN) {
- mask = Mod3Mask;
- prevState = ((state & mask) ^ prevState) ? 0 : 1;
- }
- break;
- }
- if (prevState) {
- state |= mask;
- } else {
- state &= ~mask;
- }
- }
- return state;
- }
- /*
- *----------------------------------------------------------------------
- *
- * GetTranslatedKey --
- *
- * Retrieves WM_CHAR messages that are placed on the system queue
- * by the TranslateMessage system call and places them in the
- * given KeyPress event.
- *
- * Results:
- * Sets the trans_chars and nbytes member of the key event.
- *
- * Side effects:
- * Removes any WM_CHAR messages waiting on the top of the system
- * event queue.
- *
- *----------------------------------------------------------------------
- */
- static void
- GetTranslatedKey(xkey)
- XKeyEvent *xkey;
- {
- MSG msg;
-
- xkey->nbytes = 0;
- while ((xkey->nbytes < XMaxTransChars)
- && PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE)) {
- if ((msg.message == WM_CHAR) || (msg.message == WM_SYSCHAR)) {
- GetMessage(&msg, NULL, 0, 0);
- /*
- * If this is a normal character message, we may need to strip
- * off the Alt modifier (e.g. Alt-digits). Note that we don't
- * want to do this for system messages, because those were
- * presumably generated as an Alt-char sequence (e.g. accelerator
- * keys).
- */
- if ((msg.message == WM_CHAR) && (msg.lParam & 0x20000000)) {
- xkey->state = 0;
- }
- xkey->trans_chars[xkey->nbytes] = (char) msg.wParam;
- xkey->nbytes++;
- if (((unsigned short) msg.wParam) > ((unsigned short) 0xff)) {
- /*
- * Some "addon" input devices, such as the popular
- * PenPower Chinese writing pad, generate 16 bit
- * values in WM_CHAR messages (instead of passing them
- * in two separate WM_CHAR messages containing two
- * 8-bit values.
- */
- xkey->trans_chars[xkey->nbytes] = (char) (msg.wParam >> 8);
- xkey->nbytes ++;
- }
- } else {
- break;
- }
- }
- }
- /*
- *----------------------------------------------------------------------
- *
- * UpdateInputLanguage --
- *
- * Gets called when a WM_INPUTLANGCHANGE message is received by the Tk
- * child window procedure. This message is sent by the Input Method
- * Editor system when the user chooses a different input method. All
- * subsequent WM_CHAR messages will contain characters in the new
- * encoding. We record the new encoding so that TkpGetString() knows how
- * to correctly translate the WM_CHAR into unicode.
- *
- * Results:
- * Records the new encoding in keyInputEncoding.
- *
- * Side effects:
- * Old value of keyInputEncoding is freed.
- *
- *----------------------------------------------------------------------
- */
- static void
- UpdateInputLanguage(charset)
- int charset;
- {
- CHARSETINFO charsetInfo;
- Tcl_Encoding encoding;
- char codepage[4 + TCL_INTEGER_SPACE];
- if (keyInputCharset == charset) {
- return;
- }
- if (TranslateCharsetInfo((DWORD*)charset, &charsetInfo, TCI_SRCCHARSET)
- == 0) {
- /*
- * Some mysterious failure.
- */
- return;
- }
- wsprintfA(codepage, "cp%d", charsetInfo.ciACP);
- if ((encoding = Tcl_GetEncoding(NULL, codepage)) == NULL) {
- /*
- * The encoding is not supported by Tcl.
- */
- return;
- }
- if (keyInputEncoding != NULL) {
- Tcl_FreeEncoding(keyInputEncoding);
- }
- keyInputEncoding = encoding;
- keyInputCharset = charset;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinGetKeyInputEncoding --
- *
- * Returns the current keyboard input encoding selected by the
- * user (with WM_INPUTLANGCHANGE events).
- *
- * Results:
- * The current keyboard input encoding.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- Tcl_Encoding
- TkWinGetKeyInputEncoding()
- {
- return keyInputEncoding;
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinGetUnicodeEncoding --
- *
- * Returns the cached unicode encoding.
- *
- * Results:
- * The unicode encoding.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- Tcl_Encoding
- TkWinGetUnicodeEncoding()
- {
- if (unicodeEncoding == NULL) {
- unicodeEncoding = Tcl_GetEncoding(NULL, "unicode");
- }
- return unicodeEncoding;
- }
- /*
- *----------------------------------------------------------------------
- *
- * HandleIMEComposition --
- *
- * This function works around a definciency in some versions
- * of Windows 2000 to make it possible to entry multi-lingual
- * characters under all versions of Windows 2000.
- *
- * When an Input Method Editor (IME) is ready to send input
- * characters to an application, it sends a WM_IME_COMPOSITION
- * message with the GCS_RESULTSTR. However, The DefWindowProc()
- * on English Windows 2000 arbitrarily converts all non-Latin-1
- * characters in the composition to "?".
- *
- * This function correctly processes the composition data and
- * sends the UNICODE values of the composed characters to
- * TK's event queue.
- *
- * Results:
- * If this function has processed the composition data, returns 1.
- * Otherwise returns 0.
- *
- * Side effects:
- * Key events are put into the TK event queue.
- *
- *----------------------------------------------------------------------
- */
- static int
- HandleIMEComposition(hwnd, lParam)
- HWND hwnd; /* Window receiving the message. */
- LPARAM lParam; /* Flags for the WM_IME_COMPOSITION
- * message */
- {
- HIMC hIMC;
- int i, n;
- XEvent event;
- char * buff;
- TkWindow *winPtr;
- Tcl_Encoding unicodeEncoding = TkWinGetUnicodeEncoding();
- BOOL isWinNT = (TkWinGetPlatformId() == VER_PLATFORM_WIN32_NT);
- if ((lParam & GCS_RESULTSTR) == 0) {
- /*
- * Composition is not finished yet.
- */
- return 0;
- }
- hIMC = ImmGetContext(hwnd);
- if (hIMC) {
- if (isWinNT) {
- n = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);
- } else {
- n = ImmGetCompositionStringA(hIMC, GCS_RESULTSTR, NULL, 0);
- }
- if ((n > 0) && ((buff = (char *) ckalloc(n)) != NULL)) {
- if (isWinNT) {
- n = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, buff, n);
- } else {
- Tcl_DString utfString, unicodeString;
- n = ImmGetCompositionStringA(hIMC, GCS_RESULTSTR, buff, n);
- Tcl_DStringInit(&utfString);
- Tcl_ExternalToUtfDString(keyInputEncoding, buff, n,
- &utfString);
- Tcl_UtfToExternalDString(unicodeEncoding,
- Tcl_DStringValue(&utfString), -1, &unicodeString);
- i = Tcl_DStringLength(&unicodeString);
- if (n < i) {
- /*
- * Only alloc more space if we need, otherwise just
- * use what we've created. Don't realloc as that may
- * copy data we no longer need.
- */
- ckfree((char *) buff);
- buff = (char *) ckalloc(i);
- }
- n = i;
- memcpy(buff, Tcl_DStringValue(&unicodeString), n);
- Tcl_DStringFree(&utfString);
- Tcl_DStringFree(&unicodeString);
- }
- /*
- * Set up the fields pertinent to key event.
- *
- * We set send_event to the special value of -2, so that
- * TkpGetString() in tkWinKey.c knows that trans_chars[]
- * already contains a UNICODE char and there's no need to
- * do encoding conversion.
- */
- winPtr = (TkWindow *)Tk_HWNDToWindow(hwnd);
- event.xkey.serial = winPtr->display->request++;
- event.xkey.send_event = -2;
- event.xkey.display = winPtr->display;
- event.xkey.window = winPtr->window;
- event.xkey.root = RootWindow(winPtr->display, winPtr->screenNum);
- event.xkey.subwindow = None;
- event.xkey.state = TkWinGetModifierState();
- event.xkey.time = TkpGetMS();
- event.xkey.same_screen = True;
- event.xkey.keycode = 0;
- event.xkey.nbytes = 2;
- for (i=0; i<n;) {
- /*
- * Simulate a pair of KeyPress and KeyRelease events
- * for each UNICODE character in the composition.
- */
- event.xkey.trans_chars[0] = (char) buff[i++];
- event.xkey.trans_chars[1] = (char) buff[i++];
- event.type = KeyPress;
- Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
- event.type = KeyRelease;
- Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
- }
- ckfree(buff);
- }
- ImmReleaseContext(hwnd, hIMC);
- return 1;
- }
- return 0;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_FreeXId --
- *
- * This interface is not needed under Windows.
- *
- * Results:
- * None.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- void
- Tk_FreeXId(display, xid)
- Display *display;
- XID xid;
- {
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinResendEvent --
- *
- * This function converts an X event into a Windows event and
- * invokes the specified windo procedure.
- *
- * Results:
- * A standard Windows result.
- *
- * Side effects:
- * Invokes the window procedure
- *
- *----------------------------------------------------------------------
- */
- LRESULT
- TkWinResendEvent(wndproc, hwnd, eventPtr)
- WNDPROC wndproc;
- HWND hwnd;
- XEvent *eventPtr;
- {
- UINT msg;
- WPARAM wparam;
- LPARAM lparam;
- if (eventPtr->type == ButtonPress) {
- switch (eventPtr->xbutton.button) {
- case Button1:
- msg = WM_LBUTTONDOWN;
- wparam = MK_LBUTTON;
- break;
- case Button2:
- msg = WM_MBUTTONDOWN;
- wparam = MK_MBUTTON;
- break;
- case Button3:
- msg = WM_RBUTTONDOWN;
- wparam = MK_RBUTTON;
- break;
- default:
- return 0;
- }
- if (eventPtr->xbutton.state & Button1Mask) {
- wparam |= MK_LBUTTON;
- }
- if (eventPtr->xbutton.state & Button2Mask) {
- wparam |= MK_MBUTTON;
- }
- if (eventPtr->xbutton.state & Button3Mask) {
- wparam |= MK_RBUTTON;
- }
- if (eventPtr->xbutton.state & ShiftMask) {
- wparam |= MK_SHIFT;
- }
- if (eventPtr->xbutton.state & ControlMask) {
- wparam |= MK_CONTROL;
- }
- lparam = MAKELPARAM((short) eventPtr->xbutton.x,
- (short) eventPtr->xbutton.y);
- } else {
- return 0;
- }
- return CallWindowProc(wndproc, hwnd, msg, wparam, lparam);
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkpGetMS --
- *
- * Return a relative time in milliseconds. It doesn't matter
- * when the epoch was.
- *
- * Results:
- * Number of milliseconds.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- unsigned long
- TkpGetMS()
- {
- return GetTickCount();
- }
- /*
- *----------------------------------------------------------------------
- *
- * TkWinUpdatingClipboard --
- *
- *
- * Results:
- * Number of milliseconds.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
- void
- TkWinUpdatingClipboard(int mode)
- {
- ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
- Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
- tsdPtr->updatingClipboard = mode;
- }
- /*
- *----------------------------------------------------------------------
- *
- * Tk_SetCaretPos --
- *
- * This enables correct movement of focus in the MS Magnifier, as well
- * as allowing us to correctly position the IME Window. The following
- * Win32 APIs are used to work with MS caret:
- *
- * CreateCaret DestroyCaret SetCaretPos GetCaretPos
- *
- * Only one instance of caret can be active at any time
- * (e.g. DestroyCaret API does not take any argument such as handle).
- * Since do-it-right approach requires to track the create/destroy
- * caret status all the time in a global scope among windows (or
- * widgets), we just implement this minimal setup to get the job done.
- *
- * Results:
- * None
- *
- * Side effects:
- * Sets the global Windows caret position.
- *
- *----------------------------------------------------------------------
- */
- void
- Tk_SetCaretPos(Tk_Window tkwin, int x, int y, int height)
- {
- static HWND caretHWND = NULL;
- TkCaret *caretPtr = &(((TkWindow *) tkwin)->dispPtr->caret);
- Window win;
- /*
- * Prevent processing anything if the values haven't changed.
- * Windows only has one display, so we can do this with statics.
- */
- if ((caretPtr->winPtr == ((TkWindow *) tkwin))
- && (caretPtr->x == x) && (caretPtr->y == y)) {
- return;
- }
- caretPtr->winPtr = ((TkWindow *) tkwin);
- caretPtr->x = x;
- caretPtr->y = y;
- caretPtr->height = height;
- /*
- * We adjust to the toplevel to get the coords right, as setting
- * the IME composition window is based on the toplevel hwnd, so
- * ignore height.
- */
- while (!Tk_IsTopLevel(tkwin)) {
- x += Tk_X(tkwin);
- y += Tk_Y(tkwin);
- tkwin = Tk_Parent(tkwin);
- if (tkwin == NULL) {
- return;
- }
- }
- win = Tk_WindowId(tkwin);
- if (win) {
- HIMC hIMC;
- HWND hwnd = Tk_GetHWND(win);
- if (hwnd != caretHWND) {
- DestroyCaret();
- if (CreateCaret(hwnd, NULL, 0, 0)) {
- caretHWND = hwnd;
- }
- }
- if (!SetCaretPos(x, y) && CreateCaret(hwnd, NULL, 0, 0)) {
- caretHWND = hwnd;
- SetCaretPos(x, y);
- }
- /*
- * The IME composition window should be updated whenever the caret
- * position is changed because a clause of the composition string may
- * be converted to the final characters and the other clauses still
- * stay on the composition window. -- yamamoto
- */
- hIMC = ImmGetContext(hwnd);
- if (hIMC) {
- COMPOSITIONFORM cform;
- cform.dwStyle = CFS_POINT;
- cform.ptCurrentPos.x = x;
- cform.ptCurrentPos.y = y;
- ImmSetCompositionWindow(hIMC, &cform);
- ImmReleaseContext(hwnd, hIMC);
- }
- }
- }