msgs12.hlp (Topic list)
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WM_CLOSE changes
Full Description                                    Up Next Previous
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MS OS/2 version 1.2 changes
 
If a dialog window has a system menu, selecting the "Close" menu item calls
the WinDismissDlg function, passing the DID_CANCEL result code. Previous
versions of MS OS/2 closed the application, rather than only the dialog
box.
 
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