open a file browser from a win32 dialog

I am working in win32 with c++ and using a dialog as my main window. I am trying to open a file browser to select a folder, but nothing happens when i tell it to pop up. Also how do i make it only show files, because i juse want the user to select a directory, not a file. Heres what i have. Thanks

Code:

	static OPENFILENAME openFileName;
	openFileName.lStructSize = sizeof(OPENFILENAME);
	openFileName.hwndOwner = hWnd;
	openFileName.hInstance = NULL;
	openFileName.lpstrFilter = "text (*.txt)\0*.txt\0)";
	openFileName.lpstrCustomFilter = NULL;
	openFileName.nMaxCustFilter = 0;
	openFileName.lpstrFile = NULL;
	openFileName.nMaxFile = MAX_PATH;
	openFileName.lpstrFileTitle = NULL;
	openFileName.nMaxFileTitle = MAX_PATH;
	openFileName.lpstrInitialDir = NULL;
	openFileName.lpstrTitle = NULL;
	openFileName.Flags = 0;
	openFileName.nFileOffset = 0;
	openFileName.nFileExtension = 0;
	openFileName.lpstrDefExt = "txt";
	openFileName.lCustData = 0L;
	openFileName.lpfnHook = NULL;
	openFileName.lpTemplateName = NULL;

		case BTN_BROWSE:
			openFileName.hwndOwner = hWnd;
			char directory[500];
			openFileName.lpstrFile = directory;
			openFileName.lpstrFileTitle = "test";
			openFileName.Flags = OFN_CREATEPROMPT;
			GetOpenFileName(&openFileName);

Welcome to the boards!

Try including this line of code to your program:

Code:

InitCommonControls();

I believe the GetOpenFileName function uses common controls stuff....but I may be mistaken.

Also check out
http://msdn.microsoft.com/library/de...ialogboxes.asp
There's information there for opening the Open dialog box.

"text (*.txt)\0*.txt\0)";

try removing the last brace here and possibly adding another terminator (thought the string should be null terminated.)
ie
"text (*.txt)\0*.txt\0\0";

MSDN
lpstrFilter
"Pointer to a buffer containing pairs of null-terminated filter strings. The last string in the buffer must be terminated by two NULL characters. "

This code should do what you are asking for:

Code:

#define _WIN32_DCOM

#include <windows.h>
#include <shlobj.h>
#include <tchar.h>
#include <stdio.h>

int main()
{
	BROWSEINFO      bi;
	char            pszBuffer[MAX_PATH]; 
	LPITEMIDLIST    pidl; 
	LPMALLOC		lpMalloc;

	// Initialize COM
	if(CoInitializeEx(0,COINIT_APARTMENTTHREADED) != S_OK)
	{
		MessageBox(NULL,_T("Error opening browse window"),_T("ERROR"),MB_OK);
		CoUninitialize();
		return 0;
	}

	// Get a pointer to the shell memory allocator
	if(SHGetMalloc(&lpMalloc) != S_OK)
	{
		MessageBox(NULL,_T("Error opening browse window"),_T("ERROR"),MB_OK);
		CoUninitialize();
		return 0;
	}

	bi.hwndOwner        =   NULL; 
	bi.pidlRoot         =   NULL;
	bi.pszDisplayName   =   pszBuffer; 
	bi.lpszTitle        =   _T("Select a install Directory"); 
	bi.ulFlags          =   BIF_RETURNFSANCESTORS | BIF_RETURNONLYFSDIRS; 
	bi.lpfn             =   NULL; 
	bi.lParam           =   0;
	
	if(pidl = SHBrowseForFolder(&bi))
	{
		// Copy the path directory to the buffer
		if(SHGetPathFromIDList(pidl,pszBuffer))
		{
			// pszBuffer now holds the directory path
			printf(_T("You selected the directory: %s\n"),pszBuffer);
		}

		lpMalloc->Free(pidl);
	}
	lpMalloc->Release();
	CoUninitialize();

	return 0;
}

As a side note, one can ditch IMalloc and use the simpler CoTakeMemFree().