C / C++ / MFC

viliam wrote:

(Some macro programs and tutorial presentatin
do so)

// The initial folder, and the result of the function are contained in buf

bool BrowseForFolder(HWND hWnd, char *buf)
{
	// Global pointer to the shell's IMalloc interface.
	
	LPMALLOC g_pMalloc;
	
	// Get the shell's allocator.
	
	if (!SUCCEEDED(::SHGetMalloc(&g_pMalloc)))
		return false;
	
	BROWSEINFO     bi;
	LPITEMIDLIST  pidlMyComputer;  // PIDL for MyComputer folder
	
	LPITEMIDLIST  pidlBrowse;      // PIDL selected by user
	
	
	// Get the PIDL for the Programs folder.
	
	if (!SUCCEEDED(::SHGetSpecialFolderLocation(hWnd, CSIDL_DRIVES, &pidlMyComputer)))
		return false;
	
	// Fill in the BROWSEINFO structure.
	
	bi.hwndOwner = hWnd;
	bi.pidlRoot = pidlMyComputer;
	bi.pszDisplayName = buf;
	bi.lpszTitle = "Select root folder";
        // 0x40 = new style dialog (includes "Make New Folder" button)
	bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_RETURNFSANCESTORS | 0x40; 
	bi.lpfn = BrowseCallbackProc;
	bi.lParam = (LPARAM)buf;
	
	// Browse for a folder and return its PIDL.
	
	pidlBrowse = ::SHBrowseForFolder(&bi);
	bool result = (pidlBrowse != 0);
	if (result) 
	{
		if (!::SHGetPathFromIDList(pidlBrowse, buf))
			result = false;
		
		// Free the PIDL returned by SHBrowseForFolder.
		
		g_pMalloc->Free(pidlBrowse);
	}
	
	// Clean up.
	
	g_pMalloc->Free(pidlMyComputer);
	
	return result;
}