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DefMDIChildProc The DefMDIChildProc function provides default processing for any window message that the window procedure of a multiple document interface (MDI) child window does not process. A window message not processed by the window procedure must be passed to the DefMDIChildProc function, not to the DefWindowProc function.
VB4-32,5,6
Declare Function DefMDIChildProc Lib "user32" Alias "DefMDIChildProcA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long |
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Operating Systems Supported |
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Requires Windows NT 3.1 or later; Requires Windows 95 or later |
- hWnd
Identifies the MDI child window.
- uMsg
Specifies the message to be processed.
- wParam
Specifies additional message-specific information.
- lParam
Specifies additional message-specific information. |
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The return value specifies the result of the message processing and depends on the message. |
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