Very Computer

Hi all,

Ok, this should be simple. Creating a dialog box from within a dialog
box. Anything special needed? Mine returns a -1 (failure) everytime.

Thanks,
Nigel

Heres the code:

case IDC_ADVANCED:
  if((DialogBox (hinst, MAKEINTRESOURCE(IDD_ADVANCED), hdlg,
(DLGPROC)advanceddialog)) == -1)

MessageBox(hdlg, "Could not open Advanced Box", "Advanced DB Failed",
MB_ICONINFORMATION | MB_OK);

break;
.
.
.
.
BOOL CALLBACK advanceddialog(HWND hdlg, UINT iMsg, WPARAM wParam,
LPARAM lParam)
     {
        static char tempbuffer[150];
        //int count;

        switch (iMsg)
          {
          case WM_INITDIALOG :
         MessageBox(hdlg, "Hello World", "Hello World", MB_OK);
                          return TRUE;

          case WM_COMMAND :
               switch (LOWORD (wParam))
               {
               case IDOK :
               case IDCANCEL :
                 EndDialog (hdlg, 0) ;
                           return TRUE ;
               }
               break ;
          }
     return FALSE ;
     }

Quote:>Ok, this should be simple. Creating a dialog box from within a dialog
>box. Anything special needed? Mine returns a -1 (failure) everytime.

There's nothing fundamentally wrong with doing that, have you put a
breakpoint in the sub-dialog's message handler to see if it's getting
there. Does the IDD_ADVANCED dialog exist in your resource file?

Can you invoke the IDD_ADVANCED dialog as a top level dialog?

Dave
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The only problem I see is that you are displaying UI from within the
WM_INITDIALOG handler of your advanced dialog. This shouldn't cause it to
fail, but it may cause other undefined behavior, typically having to do with
screwing up z-order or enable/disable status of owner/parent windows. A
safer way to do so is to post yourself a message from the initdialog handler
and then display the necessary UI. That way you let the dialog fully
initialize before it needs to handle messages like paint/activation, etc.

In any case, as I said that shouldn't cause it to plain fail. My guess that
a non-existent resource. I believe GetLastError should give a clue of the
problem as well.

-ZiggyM

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