msgs12.hlp (Topic list)
Control-window messages (1.2)
Message Groups  Overview                          Up Next Previous
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WM_ADJUSTWINDOWPOS  Indicates that a window has been moved or sized
WM_QUERYDLGCODE     Queries the capabilities of a control window
WM_COMMAND          Specifies a control message
WM_CONTROL          Specifies a control message
WM_CONTROLHEAP      Indicates that a heap handle was requested
WM_CONTROLPOINTER   Indicates the mouse moved over a control window
WM_HELP             Indicates a help message
WM_SYSCOMMAND       Indicates a system message