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 WM_NCCREATE

The WM_NCCREATE message is sent prior to the WM_CREATE message when a window is first created.

A window receives this message through its WindowProc function.

    LRESULT CALLBACK WindowProc(
      HWND hwnd,       // handle to window
      UINT uMsg,       // WM_NCCREATE
      WPARAM wParam,   // not used
      LPARAM lParam    // creation data (LPCREATESTRUCT)
    );

Parameters

wParam
This parameter is not used.
lParam
Pointer to the CREATESTRUCT structure that contains information about the window being created. The members of CREATESTRUCT are identical to the parameters of the CreateWindowEx function.

Return Values If an application processes this message, it should return TRUE to continue creation of the window. If the application returns FALSE, the CreateWindow or CreateWindowEx function will return a NULL handle.

Requirements

Windows NT/2000 or later: Requires Windows NT 3.1 or later. Windows 95/98/Me: Requires Windows 95 or later. Header: Declared in Winuser.h; include Windows.h.

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Notebook exported on Monday, 7 July 2008, 18:56:50 PM Eastern Daylight Time