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:

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        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);

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Welcome to the boards!

Try including this line of code to your program:

Code:

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InitCommonControls();

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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:

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#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;
}

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