GetOpenFileName()

I have a button (ID_LOADTEXTURE) in a window, and when the button is clicked, I would like to have an open file dialog pop up. I have the following code in the window proc... can someone tell me where I went wrong? (the open dialog doesn't open)

Code:

---

LRESULT CALLBACK WindowProcedure(HWND hWindow, UINT uMessage, WPARAM wparam, LPARAM lparam)
{
        char filename[64];
        char fn[256];
        char filefilter[]="Bitmaps\0*.bmp\0DDS files\0*.dds\0GIF files
              \0*.gif\0JPEGs\0*.jpg\0PNG files\0*.png\0TGA files\0*.tga\0\0\0";
        OPENFILENAME fname;

        switch (uMessage)
        {
                case WM_COMMAND:
                        switch (LOWORD(wparam))
                        {
                                /*...*/
                                case ID_LOADTEXTURE:
                                        fname.lStructSize=sizeof(OPENFILENAME);
                                        fname.hwndOwner=hWindow;
                                        fname.lpstrFilter=filefilter;
                                        fname.nFilterIndex = 1;
                                        fname.lpstrFile = fn;
                                        fname.nMaxFile = sizeof(fn);
                                        fname.lpstrFileTitle = filename;
                                        fname.nMaxFileTitle = sizeof(filename)-1;
                                        fname.Flags = OFN_FILEMUSTEXIST|OFN_HIDEREADONLY;
                                        fname.lpstrCustomFilter = NULL;
                                        fname.lpstrInitialDir = NULL;
                                        fname.lpstrTitle = NULL;
                                        fname.lpstrDefExt = NULL;
                                        fname.lCustData = 0;

                                        if(!GetOpenFileName(&fname))
                                                break;

                                /*...*/

---

Thanks

Are you, by any chance, using bcc5.5 cmd line tools on win98/NT?

If you are, please read this first.

MSVC 6 / Win XP

>>MSVC 6 / Win XP<<

Ah, well - worth a try. ;)

What does CommDlgExtendedError return?

edit: Sorry, i'm not using windows just now so can't test your code myself. :(

It returns 12290... I'll edit this post as soon as I figure out which error code that is. I haven't had time for the if statements yet.

edit:
FNERR_INVALIDFILENAME

Try strcpy (or lstrcpy) an empty string into your 'fn' variable prior to using it.

I have a vague recollection that the open/save common dialog doesn't like anything other than a valid string passed as that (fname.lpstrFile) parameter (I don't think NULL works either).

char fn[256]=""; did it :) Thanks.