FIX: Common Dialog Classes Don't Update DDX Member Variables

• The Microsoft Foundation Classes (MFC), included with:
  • Microsoft Visual C++ for Windows, 16-bit edition, versions 1.0, 1.5
  • Microsoft Visual C++, 32-bit Editions, version 1.0

SYMPTOMS

If you use classes derived from the common dialog classes (for example CFileDialog) in the MFC, DDX member variables do not get updated when you choose the "OK" button. The reason for this is that the base class "OnOK()", provided for these classes, does not call UpdateData(). For example, CFileDialog::OnOK() does not call UpdateData().

RESOLUTION

The workaround for this is to override OnOK() in your derived class and call UpdateData(). See CDialog::OnOK() in <drive>:\MSVC\MFC\SRC\DLGCORE.CPP for an example of how to set up the code and message-map entry.

STATUS

Microsoft has confirmed this to be a problem in the MFC, versions 2.0 and 2.5. This problem was corrected in MFC version 3.0, included with Visual C++ version 2.0.

Additional query words: ok button CPrintDialog CColorDialog CFontDialog 1.00 1.50 2.00 2.50 2.10

Keywords : kbnokeyword kbMFC kbVC
Version : 1.00 1.50 | 1.00
Platform : NT WINDOWS
Issue type :