WindowsXP/Source/XPSP1/NT/public/sdk/inc/atl21/atlconv.cpp
2024-08-03 16:30:48 +02:00

109 lines
4.1 KiB
C++

// This is a part of the Active Template Library.
// Copyright (C) 1996-1997 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Active Template Library Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Active Template Library product.
#ifndef __ATLCONV_H__
#error atlconv.cpp requires atlconv.h to be included first
#endif
#ifndef _ATL_NO_CONVERSIONS
/////////////////////////////////////////////////////////////////////////////
// Global UNICODE<>ANSI translation helpers
LPWSTR WINAPI AtlA2WHelper(LPWSTR lpw, LPCSTR lpa, int nChars)
{
_ASSERTE(lpa != NULL);
_ASSERTE(lpw != NULL);
// verify that no illegal character present
// since lpw was allocated based on the size of lpa
// don't worry about the number of chars
lpw[0] = '\0';
MultiByteToWideChar(CP_ACP, 0, lpa, -1, lpw, nChars);
return lpw;
}
LPSTR WINAPI AtlW2AHelper(LPSTR lpa, LPCWSTR lpw, int nChars)
{
_ASSERTE(lpw != NULL);
_ASSERTE(lpa != NULL);
// verify that no illegal character present
// since lpa was allocated based on the size of lpw
// don't worry about the number of chars
lpa[0] = '\0';
WideCharToMultiByte(CP_ACP, 0, lpw, -1, lpa, nChars, NULL, NULL);
return lpa;
}
#if defined(_WINGDI_) && !defined(NOGDI)
// don't include this code when building DLL
LPDEVMODEW AtlDevModeA2W(LPDEVMODEW lpDevModeW, LPDEVMODEA lpDevModeA)
{
if (lpDevModeA == NULL)
return NULL;
_ASSERTE(lpDevModeW != NULL);
AtlA2WHelper(lpDevModeW->dmDeviceName, (LPCSTR)lpDevModeA->dmDeviceName, 32*sizeof(WCHAR));
memcpy(&lpDevModeW->dmSpecVersion, &lpDevModeA->dmSpecVersion,
offsetof(DEVMODEW, dmFormName) - offsetof(DEVMODEW, dmSpecVersion));
AtlA2WHelper(lpDevModeW->dmFormName, (LPCSTR)lpDevModeA->dmFormName, 32*sizeof(WCHAR));
memcpy(&lpDevModeW->dmLogPixels, &lpDevModeA->dmLogPixels,
sizeof(DEVMODEW) - offsetof(DEVMODEW, dmLogPixels));
if (lpDevModeA->dmDriverExtra != 0)
memcpy(lpDevModeW+1, lpDevModeA+1, lpDevModeA->dmDriverExtra);
lpDevModeW->dmSize = sizeof(DEVMODEW);
return lpDevModeW;
}
LPTEXTMETRICW AtlTextMetricA2W(LPTEXTMETRICW lptmW, LPTEXTMETRICA lptmA)
{
if (lptmA == NULL)
return NULL;
_ASSERTE(lptmW != NULL);
memcpy(lptmW, lptmA, sizeof(LONG) * 11);
memcpy(&lptmW->tmItalic, &lptmA->tmItalic, sizeof(BYTE) * 5);
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)&lptmA->tmFirstChar, 1, &lptmW->tmFirstChar, 1);
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)&lptmA->tmLastChar, 1, &lptmW->tmLastChar, 1);
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)&lptmA->tmDefaultChar, 1, &lptmW->tmDefaultChar, 1);
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)&lptmA->tmBreakChar, 1, &lptmW->tmBreakChar, 1);
return lptmW;
}
LPTEXTMETRICA AtlTextMetricW2A(LPTEXTMETRICA lptmA, LPTEXTMETRICW lptmW)
{
if (lptmW == NULL)
return NULL;
_ASSERTE(lptmA != NULL);
memcpy(lptmA, lptmW, sizeof(LONG) * 11);
memcpy(&lptmA->tmItalic, &lptmW->tmItalic, sizeof(BYTE) * 5);
WideCharToMultiByte(CP_ACP, 0, &lptmW->tmFirstChar, 1, (LPSTR)&lptmA->tmFirstChar, 1, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, &lptmW->tmLastChar, 1, (LPSTR)&lptmA->tmLastChar, 1, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, &lptmW->tmDefaultChar, 1, (LPSTR)&lptmA->tmDefaultChar, 1, NULL, NULL);
WideCharToMultiByte(CP_ACP, 0, &lptmW->tmBreakChar, 1, (LPSTR)&lptmA->tmBreakChar, 1, NULL, NULL);
return lptmA;
}
LPDEVMODEA AtlDevModeW2A(LPDEVMODEA lpDevModeA, LPDEVMODEW lpDevModeW)
{
if (lpDevModeW == NULL)
return NULL;
_ASSERTE(lpDevModeA != NULL);
AtlW2AHelper((LPSTR)lpDevModeA->dmDeviceName, lpDevModeW->dmDeviceName, 32*sizeof(char));
memcpy(&lpDevModeA->dmSpecVersion, &lpDevModeW->dmSpecVersion,
offsetof(DEVMODEA, dmFormName) - offsetof(DEVMODEA, dmSpecVersion));
AtlW2AHelper((LPSTR)lpDevModeA->dmFormName, lpDevModeW->dmFormName, 32*sizeof(char));
memcpy(&lpDevModeA->dmLogPixels, &lpDevModeW->dmLogPixels,
sizeof(DEVMODEA) - offsetof(DEVMODEA, dmLogPixels));
if (lpDevModeW->dmDriverExtra != 0)
memcpy(lpDevModeA+1, lpDevModeW+1, lpDevModeW->dmDriverExtra);
lpDevModeA->dmSize = sizeof(DEVMODEA);
return lpDevModeA;
}
#endif //_WINGDI_
#endif //!_ATL_NO_CONVERSIONS