ATLCONV.CPP

// 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; 
} 
 
#ifdef _WINGDI_ 
 
// 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