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.