FIX: Property Sheet with Edit Doesn't Close On ESC Key (125644)
The information in this article applies to:
- The Microsoft Foundation Classes (MFC), when used with:
- Microsoft Visual C++, 32-bit Editions 2.0
This article was previously published under Q125644 SYMPTOMS
Pressing the ESC key when focus is in a multiline edit control does not
cause the Property Sheet to close (OnCancel) even if it has an IDCANCEL
button. This problem may also exhibit itself when the focus is on other
child controls that return the DLGC_WANTALLKEYS or the DLGC_WANTMESSAGE
value in response to a WM_GETDLGCODE message.
CAUSE
The framework's code for handling the ESC key does not translate the ESC
key if the child window (control) wants to handle it. A multiline edit
control, which requests all messages in response to a WM_GETDLGCODE
message, sends a WM_CLOSE message to its parent window (the CPropertyPage
in this case) when the ESC key is received. However, the WM_CLOSE message
is not handled in a CPropertyPage. Therefore it is ignored and is never
received by the CPropertySheet.
RESOLUTION
To take care of this behavior, provide an OnClose() handler for your
CPropertyPage derived class, and post the WM_CLOSE message to the parent
window (the CPropertySheet). Add the WM_CLOSE message handler to your
CPropertyPage derived class using ClassWizard. Then implement it as
follows:
void CMyPropertyPage::OnClose()
{
GetParent()->PostMessage(WM_CLOSE);
CPropertyPage::OnClose();
}
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed
at the beginning of this article. This problem was corrected in Visual C++
version 2.10 for Windows NT.
| Modification Type: | Major | Last Reviewed: | 10/24/2003 |
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| Keywords: | kbBug kbfix kbPropSheet KbUIDesign kbVC210fix KB125644 |
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