CodeXchange: User Contributed Snippets

Enumerate all files in a directory

Yan Michalevsky — Mon, 07 Aug 2006 11:20:19 GMT

ArrayList filenamesList = new ArrayList();
      
DirectoryInfo dir = new DirectoryInfo(@"C:\");
FileInfo[] filesList = dir.GetFiles();
        
foreach (FileInfo fileInfo in filesList)
{
    string filename = patchFileInfo.FullName;
    filenamesList.Add(filename);
}

Enumerate installed patches for a given product using MSI API

Yan Michalevsky — Mon, 07 Aug 2006 11:43:16 GMT

static void getInstalledPatchesList(const CString& productCode,								        CAtlList< CString >* patchesList)
{
	UINT retval;
	UINT patchIndex = 0;
	TCHAR patchGuidBuffer[MAX_PRODUCT_CODE_LEN] = _T("");
	TCHAR transformsBuff[100] = _T("");
	DWORD transformsBuffSize = sizeof(transformsBuff)/sizeof(transformsBuff[0]);
	
	do {
		memset(patchGuidBuffer, 0, sizeof(patchGuidBuffer));
		memset(transformsBuff, 0, sizeof(transformsBuff));
		transformsBuffSize = sizeof(transformsBuff)/sizeof(transformsBuff[0]);
		
		retval = MsiEnumPatches(productCode, patchIndex, patchGuidBuffer,
  				          transformsBuff, &transformsBuffSize);
		if (ERROR_SUCCESS == retval) {
			patchesList->AddTail(CString(patchGuidBuffer));
			++patchIndex;
		}
	} while (ERROR_SUCCESS == retval);
} //end of getInstalledPatchesList

Get Temp directory path

Yan Michalevsky — Mon, 07 Aug 2006 11:46:12 GMT

CString getTempDir()
{
	TCHAR tempPath[MAX_PATH + 1] = _T("");
	const UINT SIZE_IN_TCHARS = sizeof(tempPath)/sizeof(TCHAR); 
	
	DWORD retval = GetTempPath(SIZE_IN_TCHARS, tempPath);
	if (SIZE_IN_TCHARS < retval) {
		THROW(Exception(_T("Failed getting temp directory path")));
	}
	
	return CString(tempPath);
} //end of getTempDir