Create a Modeless CPropertySheet with Standard Buttons

How To Create a Modeless CPropertySheet with Standard Buttons

 

SUMMARY

This article describes how to implement the standard OK, Cancel, and Apply buttons in a modeless CPropertySheet object.

MORE INFORMATION

For a modeless CPropertySheet, the Microsoft Foundation Classes (MFC) resize the sheet and hide the standard buttons in the CPropertySheet::OnInitDialog member function. To prevent MFC from doing this, perform the following steps:

•	Derive a class from CPropertySheet and override the OnInitDialog function.
•	Set "m_bModeless" to FALSE and remove the WF_CONTINUEMODAL style for "m_nFlags".
•	Call CPropertySheet::OnInitDialog.
•	Set "m_bModeless" back to TRUE and add the style WF_CONTINUEMODAL to "m_nFlags".

The following sample code illustrates this technique:

// CMySheet is derived from CpropertySheet.
// Compile options needed: default.
    
BOOL CMySheet::OnInitDialog()
{
   m_bModeless = FALSE;   
   m_nFlags |= WF_CONTINUEMODAL;

   BOOL bResult = CPropertySheet::OnInitDialog();

   m_bModeless = TRUE;
   m_nFlags &= ~WF_CONTINUEMODAL;
   return bResult;
}