Date: 2010feb4 OS: Windows Language: C/C++ Q. How can I get the version of COMCTL32.DLL or other Windows DLL? A. Many Windows DLLs export a function called DllGetVersion. You can call this function to find the DLL's version. If the function doesn't not exist you can assume the DLL is pre-Windows 2000. Here's some code to do it:

typedef struct _DllVersionInfo { DWORD cbSize; DWORD dwMajorVersion; DWORD dwMinorVersion; DWORD dwBuildNumber; DWORD dwPlatformID; } DLLVERSIONINFO; typedef HRESULT (CALLBACK *fDllGetVersion)(DLLVERSIONINFO *); BOOL GetWindowsDllVersion(LPCSTR szDll, float &version) { HMODULE hModule; fDllGetVersion pDllGetVersion; DLLVERSIONINFO info; char buf[100]; version = 0.0; if ((hModule = LoadLibrary(szDll)) == NULL) return FALSE; if ((pDllGetVersion = (fDllGetVersion) GetProcAddress(hModule, "DllGetVersion")) == NULL) return FALSE; ZeroMemory(&info, sizeof(info)); info.cbSize = sizeof(info); if (pDllGetVersion(&info) != S_OK) return FALSE; _snprintf(buf, sizeof(buf), "%d.%d", info.dwMajorVersion, info.dwMinorVersion); sscanf(buf, "%f", &version); return TRUE; } void ExampleUse() { float version; if (!GetWindowsDllVersion("COMCTL32.DLL", version)) { version = 4.0; } if (version >= 4.7) { // OK to use that feature in version 4.7 of the Common Controls } }