Microsoft KB Archive/11337

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PRB: Dialog Box and Parent Window Disabled

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Q11337

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The information in this article applies to:


 * Microsoft Windows Software Development Kit (SDK)
 * Microsoft Win32 Software Development Kit (SDK)

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SYMPTOMS
When an application uses one of the DialogBox family of functions to create a modal dialog box, both the parent window and the dialog box are disabled (unable to accept keyboard or mouse input).

CAUSE
In the application's resource file, the dialog box resource has the WS_CHILD style.

RESOLUTION
To avoid this problem, use the WS_POPUP style instead of the WS_CHILD style.

MORE INFORMATION
When an application creates a modal dialog box using one of the DialogBox family of functions, Windows disables the dialog box's parent window. If the parent window has any child windows, the child windows are also disabled.

An application can use the WS_CHILD style for dialog boxes created by one of the CreateDialog family of functions. However, problems and inconsistencies arise if the application uses the IsDialogMessage function to process dialog box input for either the parent or the child.

Additional query words: CreateDialogIndirect CreateDialogIndirectParam CreateDialogParam DialogBoxIndirect DialogBoxIndirectParam DialogBoxParam

Keywords : kbDlg kbOSWinNT kbOSWin2000 kbSDKWin32 kbGrpDSUser kbOSWin

Issue type : kbprb

Technology : kbWin32SDKSearch kbAudDeveloper kbSDKSearch kbWin32sSearch kbWinSDKSearch