|
| |
 
Reading Version From Resources
Windows files have a version information structure attached
to the resources. Getting at it isn’t hard but, like a lot of things in Windows,
it isn’t intuitively obvious, either. Here’s how you can extract the revision
and build number from your version information.
First of all, you have to add “Version.lib” to the list of
included libraries in the project’s link line. Otherwise, you’ll end up with
some unresolved externals at build time.
Here’s the code that will actually read the version
information.
//////////////////////////////////////////////////////////////////////////
//
// CString csGetRevisionAndBuild()
//
// Description:
//
// Retrieve the revision and build numbers as a formated string.
//
// Input:
//
// none.
//
// Output:
//
// CString
returned as "Revision xxx.xxx Build xxx"
//
//////////////////////////////////////////////////////////////////////////
CString csGetRevisionAndBuild()
{
BYTE* lpBuff = 0;
CString csReturn;
do {
// Get the name of this module.
CString strPath;
GetModuleFileName( 0, strPath.GetBuffer(_MAX_PATH), _MAX_PATH);
strPath.ReleaseBuffer();
// How big a buffer is needed to receive file version info?
DWORD dwArg;
DWORD dwInfoSize = GetFileVersionInfoSize( (LPTSTR)(LPCTSTR)strPath, &dwArg);
if(0 == dwInfoSize)
break;
lpBuff = new BYTE[dwInfoSize];
if(!lpBuff)
break;
// Extract the file version from the specified file's resources.
if(0 == GetFileVersionInfo( (LPTSTR)(LPCTSTR)strPath, 0, dwInfoSize,
lpBuff))
break;
// Extract that portion of the resources that are specifically involved
with
// revision and build.
VS_FIXEDFILEINFO *vInfo;
UINT uInfoSize;
if (0 == VerQueryValue( lpBuff, TEXT("\\"), (LPVOID*)&vInfo, &uInfoSize))
break;
if ( !uInfoSize )
break;
int iRevMajor = HIWORD( vInfo->dwProductVersionMS );
int iRevMinor = LOWORD( vInfo->dwProductVersionMS );
int iBuild = LOWORD( vInfo->dwFileVersionLS);
csReturn.Format( _T("Revision %d.%d Build %d"), iRevMajor, iRevMinor, iBuild );
} while (false);
if ( lpBuff )
delete lpBuff;
return csReturn;
}
|
.
