打印编程

开发平台：
Visual C++

xcv.c：源码内容
							/*++
Copyright (c) 1990-2003  Microsoft Corporation
All rights reserved
Module Name:
    xcv.c
Abstract:
    Implements xcv functions.
--*/
#include "precomp.h"
#pragma hdrstop
//
// The ddk montior samples will be build with the name ddklocalmon and ddklocalui
// so they can be installed without clashing with existing files
//
//
// change this to the name of the dll that provides the ui for the monitor
//
#define SZLOCALUI  L"PopFaxLocalUI.dll"
DWORD
GetMonitorUI(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
);
DWORD
DoPortExists(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
);
DWORD
DoPortIsValid(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
);
DWORD
DoDeletePort(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
);
DWORD
DoAddPort(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData) PBYTE        pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
);
DWORD
DoSetDefaultCommConfig(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData) PBYTE        pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
);
DWORD
DoGetDefaultCommConfig(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
);
DWORD
GetTransmissionRetryTimeout(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
);
typedef struct {
    PWSTR   pszMethod;
    DWORD   (*pfn)( PBYTE  pInputData,
                    DWORD  cbInputData,
                    PBYTE  pOutputData,
                    DWORD  cbOutputData,
                    PDWORD pcbOutputNeeded,
                    PINIXCVPORT pIniXcv
                    );
} XCV_METHOD, *PXCV_METHOD;
XCV_METHOD  gpLcmXcvMethod[] = {
                            {L"MonitorUI", GetMonitorUI},
                            {L"ConfigureLPTPortCommandOK", ConfigureLPTPortCommandOK},
                            {L"AddPort", DoAddPort},
                            {L"DeletePort", DoDeletePort},
                            {L"PortExists", DoPortExists},
                            {L"PortIsValid", DoPortIsValid},
                            {L"GetTransmissionRetryTimeout", GetTransmissionRetryTimeout},
                            {L"SetDefaultCommConfig", DoSetDefaultCommConfig},
                            {L"GetDefaultCommConfig", DoGetDefaultCommConfig},
                            {NULL, NULL}
                            };
DWORD
LcmXcvDataPort(
    __in IN                          HANDLE  hXcv,
    IN                          LPCWSTR pszDataName,
    __in_bcount(cbInputData)    PBYTE   pInputData,
    IN                          DWORD   cbInputData,
    __out_bcount(cbOutputData)  PBYTE   pOutputData,
    IN                          DWORD   cbOutputData,
    __out                       PDWORD  pcbOutputNeeded
    )
{
    DWORD dwRet;
    DWORD i;
    for(i = 0 ; gpLcmXcvMethod[i].pszMethod &&
                wcscmp(gpLcmXcvMethod[i].pszMethod, pszDataName) ; ++i)
        ;
    if (gpLcmXcvMethod[i].pszMethod) {
        dwRet = (*gpLcmXcvMethod[i].pfn)(  pInputData,
                                        cbInputData,
                                        pOutputData,
                                        cbOutputData,
                                        pcbOutputNeeded,
                                        (PINIXCVPORT) hXcv);
    } else {
        dwRet = ERROR_INVALID_PARAMETER;
    }
    return dwRet;
}
BOOL
LcmXcvOpenPort(
    __in    HANDLE hMonitor,
            LPCWSTR pszObject,
            ACCESS_MASK GrantedAccess,
            PHANDLE phXcv
    )
{
    PINILOCALMON pIniLocalMon = (PINILOCALMON)hMonitor;
    *phXcv = CreateXcvPortEntry(pIniLocalMon, pszObject, GrantedAccess);
    return !!*phXcv;
}
BOOL
LcmXcvClosePort(
    __in    HANDLE  hXcv
    )
{
    LcmEnterSplSem();
    DeleteXcvPortEntry((PINIXCVPORT) hXcv);
    LcmLeaveSplSem();
    return TRUE;
}
DWORD
DoDeletePort(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    DWORD dwRet = ERROR_SUCCESS;
    if (!(pIniXcv->GrantedAccess & SERVER_ACCESS_ADMINISTER))
        return ERROR_ACCESS_DENIED;
    LcmEnterSplSem();
    if (LcmDeletePortEntry( pIniXcv->pIniLocalMon, (PWSTR)pInputData))
    {
        DeletePortFromRegistry ((PWSTR) pInputData);
    }
    else
        dwRet = ERROR_FILE_NOT_FOUND;
    LcmLeaveSplSem();
    return dwRet;
}
DWORD
DoPortExists(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    DWORD dwRet;
    BOOL  bPortExists;
    *pcbOutputNeeded = sizeof(DWORD);
    if (cbOutputData < sizeof(DWORD)) {
        return ERROR_INSUFFICIENT_BUFFER;
    }
    bPortExists = PortExists(NULL, (PWSTR) pInputData, &dwRet);
    if (dwRet == ERROR_SUCCESS)
        *(DWORD *) pOutputData = bPortExists;
    return dwRet;
}
DWORD
DoPortIsValid(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    BOOL bRet;
    bRet = PortIsValid((PWSTR) pInputData);
    return bRet ? ERROR_SUCCESS : GetLastError();
}
DWORD
DoAddPort(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    DWORD       dwRet, bPortExists;
    PINIPORT    pIniPort = NULL;
    if (!(pIniXcv->GrantedAccess & SERVER_ACCESS_ADMINISTER))
        return ERROR_ACCESS_DENIED;
    if ( cbInputData == 0   ||
         pInputData == NULL ||
         ( wcslen((LPWSTR)pInputData) + 1 ) * sizeof(WCHAR) != cbInputData )
        return ERROR_INVALID_PARAMETER;
    bPortExists = PortExists(NULL, (PWSTR) pInputData, &dwRet);
    if (dwRet == ERROR_SUCCESS) {
        if (bPortExists) {
            SetLastError(ERROR_ALREADY_EXISTS);
        } else {
            pIniPort = LcmCreatePortEntry( pIniXcv->pIniLocalMon, (PWSTR)pInputData );
            if (pIniPort) {
                if (!AddPortInRegistry ((PWSTR) pInputData))
                {
                    LcmDeletePortEntry(pIniXcv->pIniLocalMon, (PWSTR) pInputData);
                    pIniPort = NULL;
                }
            }
        }
    }
    return pIniPort ? ERROR_SUCCESS : GetLastError();
}
DWORD
DoSetDefaultCommConfig(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    BOOL        bRet = FALSE;
    DWORD       dwLength;
    PWSTR       pszPortName = NULL;
    COMMCONFIG  *pCommConfig = (COMMCONFIG *) pInputData;
    if (!(pIniXcv->GrantedAccess & SERVER_ACCESS_ADMINISTER))
        return ERROR_ACCESS_DENIED;
    dwLength = wcslen(pIniXcv->pszName);
    if (pIniXcv->pszName[dwLength - 1] == L':') {
        if (!(pszPortName = AllocSplStr(pIniXcv->pszName)))
            goto Done;
        pszPortName[dwLength - 1] = L'';
    }
    bRet = SetDefaultCommConfig(pszPortName,
                                pCommConfig,
                                pCommConfig->dwSize);
Done:
    FreeSplStr(pszPortName);
    return bRet ? ERROR_SUCCESS : GetLastError();
}
DWORD
DoGetDefaultCommConfig(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    PWSTR       pszPortName = (PWSTR) pInputData;
    COMMCONFIG  *pCommConfig = (COMMCONFIG *) pOutputData;
    BOOL        bRet;
    if (cbOutputData < sizeof(COMMCONFIG))
    {
        //
        // at least size of COMMCONFIG is needed
        //
        if (pcbOutputNeeded)
        {
            *pcbOutputNeeded = sizeof (COMMCONFIG);
        }
        return ERROR_INSUFFICIENT_BUFFER;
    }
    pCommConfig->dwProviderSubType = PST_RS232;
    *pcbOutputNeeded = cbOutputData;
    bRet = GetDefaultCommConfig(pszPortName, pCommConfig, pcbOutputNeeded);
    return bRet ? ERROR_SUCCESS : GetLastError();
}
DWORD
GetTransmissionRetryTimeout(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    *pcbOutputNeeded = sizeof(DWORD);
    if (cbOutputData < sizeof(DWORD))
        return ERROR_INSUFFICIENT_BUFFER;
    GetTransmissionRetryTimeoutFromRegistry ((PDWORD) pOutputData);
    return ERROR_SUCCESS;
}
DWORD
GetMonitorUI(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    DWORD dwRet;
    *pcbOutputNeeded = sizeof( SZLOCALUI );
    if (cbOutputData < *pcbOutputNeeded) {
        dwRet =  ERROR_INSUFFICIENT_BUFFER;
    } else {
        dwRet = HRESULT_CODE (StringCbCopy ((PWSTR) pOutputData, cbOutputData, SZLOCALUI));
    }
    return dwRet;
}
DWORD
ConfigureLPTPortCommandOK(
    __in_bcount(cbInputData)    PBYTE       pInputData,
    IN                          DWORD       cbInputData,
    __out_bcount(cbOutputData)  PBYTE       pOutputData,
    IN                          DWORD       cbOutputData,
    __out                       PDWORD      pcbOutputNeeded,
    __inout                     PINIXCVPORT pIniXcv
)
{
    DWORD dwStatus = ERROR_SUCCESS;
    DWORD dwTimeout = 0;
    if (!(pIniXcv->GrantedAccess & SERVER_ACCESS_ADMINISTER))
    {
        dwStatus = ERROR_ACCESS_DENIED;
    }
    //
    // set timeout value in Registry
    //
    if (dwStatus == ERROR_SUCCESS)
    {
        dwStatus = SetTransmissionRetryTimeoutInRegistry ((LPWSTR) pInputData);
    }
    return dwStatus;
}

						