mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
2.0 KiB
101 lines
2.0 KiB
#ifdef __cplusplus
|
|
|
|
// VERSION.DLL delay load
|
|
|
|
class CVersion
|
|
{
|
|
public:
|
|
#define DELAYVERAPI(_fn, _args, _nargs) \
|
|
DWORD _fn _args { \
|
|
HRESULT hres = Init(); \
|
|
DWORD dwRet = 0; \
|
|
if (SUCCEEDED(hres)) { \
|
|
dwRet = _pfn##_fn _nargs; \
|
|
} \
|
|
return dwRet; } \
|
|
DWORD (STDAPICALLTYPE* _pfn##_fn) _args;
|
|
|
|
HRESULT Init(void);
|
|
CVersion();
|
|
~CVersion();
|
|
|
|
BOOL m_fInited;
|
|
HMODULE m_hMod;
|
|
|
|
DELAYVERAPI( VerInstallFileA,
|
|
(DWORD uFlags,
|
|
LPSTR szSrcFileName,
|
|
LPSTR szDestFileName,
|
|
LPSTR szSrcDir,
|
|
LPSTR szDestDir,
|
|
LPSTR szCurDir,
|
|
LPSTR szTmpFile,
|
|
PUINT lpuTmpFileLen),
|
|
(uFlags, szSrcFileName, szDestFileName, szSrcDir, szDestDir,
|
|
szCurDir, szTmpFile, lpuTmpFileLen));
|
|
|
|
|
|
DELAYVERAPI( VerQueryValueA,
|
|
(const LPVOID pBlock,
|
|
LPSTR lpSubBlock,
|
|
LPVOID * lplpBuffer,
|
|
PUINT puLen),
|
|
(pBlock, lpSubBlock, lplpBuffer, puLen));
|
|
|
|
DELAYVERAPI( GetFileVersionInfoA,
|
|
(LPSTR lptstrFilename,
|
|
DWORD dwHandle,
|
|
DWORD dwLen,
|
|
LPVOID lpData),
|
|
(lptstrFilename, dwHandle, dwLen, lpData));
|
|
|
|
DELAYVERAPI( GetFileVersionInfoSizeA,
|
|
(LPSTR lptstrFilename,
|
|
LPDWORD lpdwHandle),
|
|
(lptstrFilename, lpdwHandle));
|
|
|
|
|
|
};
|
|
|
|
inline
|
|
CVersion::CVersion()
|
|
{
|
|
m_fInited = FALSE;
|
|
}
|
|
|
|
inline
|
|
CVersion::~CVersion()
|
|
{
|
|
if (m_fInited) {
|
|
FreeLibrary(m_hMod);
|
|
}
|
|
}
|
|
|
|
inline
|
|
HRESULT
|
|
CVersion::Init(void)
|
|
{
|
|
if (m_fInited) {
|
|
return S_OK;
|
|
}
|
|
|
|
m_hMod = LoadLibrary( "VERSION.DLL" );
|
|
|
|
if (!m_hMod) {
|
|
return HRESULT_FROM_WIN32(GetLastError());
|
|
}
|
|
|
|
#define CHECKAPI(_fn) \
|
|
*(FARPROC*)&(_pfn##_fn) = GetProcAddress(m_hMod, #_fn); \
|
|
if (!(_pfn##_fn)) return E_UNEXPECTED;
|
|
|
|
CHECKAPI(VerInstallFileA);
|
|
CHECKAPI(VerQueryValueA);
|
|
CHECKAPI(GetFileVersionInfoSizeA);
|
|
CHECKAPI(GetFileVersionInfoA);
|
|
|
|
m_fInited = TRUE;
|
|
return S_OK;
|
|
}
|
|
|
|
#endif
|