输入法编程

开发平台：
Visual C++

inputHwnd.cpp：源码内容
							#include "stdafx.h"
#include "stdio.h"
#include "inputHwnd.h"
#include "windows.h"
#include "CMyWnd.h"
BOOL MyIsWinNT() ;
inputHwnd::inputHwnd()
{
	POINT pp[100];
	showtxt[0]=0;
	fCanMove=0;
	WinStartPos=myResM.ReadRegPos("inputHwnd");
	WinHeight=myResM.WinHeight;
	WinWidth=myResM.WinWidth;
	ControlHeight=myResM.ControlHeight;
	pp[0].x=0;					pp[0].y=ControlHeight;
	pp[1].x=94;					pp[1].y=ControlHeight;
	pp[2].x=70;					pp[2].y=0;
	pp[3].x=0;					pp[3].y=0;
	WinRGN1=CreatePolygonRgn(pp,4,1);
	WinRGN2=CreatePolygonRgn(pp,4,1);
	hUIFont = CreateFont(20, 0, 0, 0, FW_NORMAL,
	FALSE, FALSE, FALSE, ANSI_CHARSET,
	OUT_TT_PRECIS, CLIP_TT_ALWAYS, ANTIALIASED_QUALITY,
	DEFAULT_PITCH, "宋体");
}
 inputHwnd::~inputHwnd()
 {
	SetWindowLong(m_hWnd,GWL_WNDPROC,(long)endProc);
	DestroyWindow(m_hWnd);
	
//	MessageBox(0,"~inputHwnd",0,0);
	m_hWnd=NULL;
	DeleteObject(hUIFont);
	DeleteObject (WinRGN1);
	//如果不消毁窗口当主程序，退出时窗口依然在运行，会引起系统崩溃
 }
 
BOOL inputHwnd::Create(LPCTSTR szClassName, LPCTSTR szTitle, HINSTANCE hInstance, HWND hWndParent , DWORD dwStyle ,DWORD dwExStyle, HMENU hMenu )
{
	// 初始化全局字串
	WNDCLASSEX wcex;
	wcex.cbSize = sizeof(WNDCLASSEX); 
	wcex.style			= CS_IME;
	wcex.lpfnWndProc	= InitProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 12;
	wcex.hInstance		= hInstance;
	wcex.hIcon			= 0;
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
	wcex.lpszMenuName	= 0;
	wcex.lpszClassName	= szClassName;
	wcex.hIconSm		= 0;
	hInst=hInstance;
	RegisterClassEx(&wcex);
	{
	   m_hWnd=CreateWindowEx( 0,
						szClassName,NULL,
						WS_POPUP|WS_DISABLED,// | WS_DISABLED,WS_SIZEBOX
						WinStartPos.x,WinStartPos.y,WinWidth,ControlHeight,
						hWndParent,NULL,hInstance,this);
		ShowWindow(m_hWnd,SW_SHOWNOACTIVATE);
		UpdateWindow(m_hWnd);
	   //使白色透明掉
	}
	return m_hWnd != NULL;
}
 LRESULT WINAPI inputHwnd::WindowProc(UINT uMsg,UINT wParam,LONG lParam)
 {
  POINT pt;
  long x,y;
  static int tt;
  try {
    switch (uMsg)
    {
		case WM_CREATE:
			myset.mySetWindow(m_hWnd,RGB(255,255,255),200,LWA_ALPHA|LWA_COLORKEY);
			initalizeWin();
			myset.mySetWindow(m_hWnd,RGB(255,255,255),200,LWA_ALPHA|LWA_COLORKEY);
		  break;
		case WM_PAINT://绘制窗口
		  myPaintTxt(0,0);
			break;
        case WM_SETCURSOR:
			if ((HIWORD(lParam) == WM_MOUSEMOVE))
			{
				GetCursorPos( &pt );
				GetWindowRect(m_hWnd,&WinRect);
				WinSIZE.cx = WinRect.right - WinRect.left;
				WinSIZE.cy = WinRect.bottom - WinRect.top;
				Cursordif.x = pt.x - WinRect.left;//得到相对位置
				Cursordif.y = pt.y - WinRect.top;
				SetCapture(m_hWnd);
				//SetWindowLong(m_hWnd,4,1);//GWL_HINSTANCE DWL_MSGRESULT
				SetCursor(LoadCursor(NULL,MAKEINTRESOURCE(32649)));
			}
			else 
				return DefWindowProc(m_hWnd,uMsg,wParam,lParam);
			break;
        case WM_LBUTTONDOWN:
			fCanMove = TRUE;
			break;
        case WM_LBUTTONUP:
			if( fCanMove) 
			{
				GetCursorPos( &pt );
				myResM.WriteRegPos("inputHwnd",pt);
				MoveWindow(m_hWnd,pt.x - Cursordif.x,pt.y - Cursordif.y,WinSIZE.cx,WinSIZE.cy,TRUE);
				fCanMove = FALSE;
			}
			myPaintTxt(0,0);
			break;
        
        case WM_MOUSEMOVE:
			GetCursorPos( &pt );//取得光标位置
			y=lParam/0x10000;
			x=lParam%0x10000;
			if(fCanMove==TRUE)
			{
				MoveWindow(m_hWnd,pt.x - Cursordif.x,	pt.y - Cursordif.y,	WinSIZE.cx,WinSIZE.cy,TRUE);
				myPaintTxt(0,0);
				//使用SetWindowPos作移动时会改变集焦。可用MoveWindow解决。
				//在不移动时可以使用它。
			}
		   //测试鼠标是否移出窗口
			if(PtInRegion(WinRGN2,x,y)==0)
			{
				myPaintTxt(0,0);
			}
			if(fCanMove==FALSE )
			{   
				//SetWindowLong(m_hWnd,4,0);
				ReleaseCapture();
			}
			
			break;
		case WM_DESTROY:
			//SendMessage(m_hWnd,WM_CLOSE,0,0);
			if(myHwndParent==NULL)
			{
				//PostQuitMessage(0);
			}
			else
			{
				SetWindowLong(m_hWnd,GWL_WNDPROC,(long)endProc);
				DestroyWindow(m_hWnd);
			}
			break;
        default:
                return DefWindowProc(m_hWnd,uMsg,wParam,lParam);
            break;
    }
  } catch (...) {
	  if(IsWindow(m_hWnd))
	  {
		  ShowWindow(m_hWnd,SW_SHOW);
//		  MessageBox(0,"inputError","IsWindow",0);
	  }
//	  delete (CMyWnd*)Main_CWnd;
///	  SetWindowLong(*Main_hWnd,GWL_WNDPROC,(long)endProc);
//	  DestroyWindow(*Main_hWnd);
//	  SetWindowLong(*inpu_hWnd,GWL_WNDPROC,(long)endProc);
//	  DestroyWindow(*inpu_hWnd);
//	  SetWindowLong(*Cont_hWnd,GWL_WNDPROC,(long)endProc);
//	  DestroyWindow(*Cont_hWnd);
//	  MessageBox(0,"inputError","有错误发生",0);
  }
    return 0;
}
//窗口的初始化
inputHwnd::initalizeWin()
{
	WindDC=GetDC(m_hWnd);
	Texthdc = CreateCompatibleDC(WindDC);
	Texthdcbmp=CreateCompatibleBitmap(WindDC,WinWidth,ControlHeight);
	SelectObject(Texthdc, hUIFont);
	DeleteObject(SelectObject(Texthdc,Texthdcbmp));
	SetBkMode(Texthdc,TRANSPARENT);
	SelectObject(WindDC, hUIFont);
	TextH=GetTabbedTextExtent(WindDC,"1",1,0,0)/0x10000; 
    //
	if(!MyIsWinNT())
		SetWindowRgn(m_hWnd,WinRGN1,TRUE);
	BackhBmp=(HBITMAP)LoadBitmap(hInst,MAKEINTRESOURCE(IDB_Back));
	BackDC = CreateCompatibleDC(WindDC);
	DeleteObject(SelectObject(BackDC,BackhBmp));
}
int inputHwnd::myPaintTxt(int flag,int act )
{
  PAINTSTRUCT ps;
  HDC hdc;
    //清除掉文本区
	hdc=Texthdc;
	BitBlt(hdc,0,0,WinWidth,WinHeight,BackDC,0,WinHeight-ControlHeight,SRCCOPY);
	TextOut(hdc,5,0, showtxt,strlen(showtxt));
	/*
	HRGN Rgn1, Rgn2;
    Rgn1 = CreateRectRgn(0, 0, 100, 300);
    BeginPath(WindDC);
      TextOut(hdc,5,0, showtxt,strlen(showtxt));
    EndPath(WindDC);
    Rgn2 = PathToRegion(WindDC);
  
    CombineRgn(Rgn1, Rgn2, WinRGN1, 2);
    SetWindowRgn(WindDC, hRgn, TRUE);
    DeleteObject(hRgn);
	*/
	BeginPaint(m_hWnd, &ps);
		BitBlt(WindDC,0,0,WinWidth,WinHeight,hdc,0,0,SRCCOPY);
	EndPaint(m_hWnd, &ps);
}
int inputHwnd::RedrawWin()
{
	RedrawWindow(m_hWnd,0,0,RDW_VALIDATE|RDW_NOCHILDREN|RDW_INVALIDATE|RDW_ERASENOW|RDW_ERASE);//RDW_ERASE
	return 0;
}
//判断系统是否NT
BOOL MyIsWinNT() 
{
   OSVERSIONINFO osvi;
   osvi.dwOSVersionInfoSize = 148;
   GetVersionEx(&osvi);
  if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
	  return 1;
  else
      return 0;
}

						