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How To Create a Modeless CPropertySheet with Standard Buttons

This article was previously published under Q146916
This article has been archived. It is offered "as is" and will no longer be updated.
Note Microsoft Visual C++ .NET (2002) supports both the managed code model that is provided by the Microsoft .NET Framework and the unmanaged native Microsoft Windows code model. The information in this article applies only to unmanaged Visual C++ code.
This article describes how to implement the standard OK, Cancel, and Apply buttons in a modeless CPropertySheet object.
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;}				
In a modeless CPropertySheet object, the OK and Cancel buttons do not close the property sheet when they are clicked. They do send a WM_COMMAND message with IDOK or IDCANCEL to the sheet, and the OnOK or OnCancel functions are called for the page. To close the sheet, you can implement ON_COMMAND handlers for IDOK and IDCANCEL in the CPropertySheet and call the EndDialog function to close the sheet.
modeless CPropertySheet buttons property sheet propertysheet

Article ID: 146916 - Last Review: 02/27/2014 10:24:15 - Revision: 3.2

Microsoft Foundation Class Library 4.2, Microsoft Visual C++ .NET 2003 Standard Edition

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