WM OPEN

This message occurs when the operator makes an **OPEN** request.

Syntax

param1
    USHORT usPointer;     /* Input device flag. */

param2
    POINTS ptspointerpos; /* Pointer position. */

Parameters

usPointer (USHORT) - input

Input device flag.

TRUE: Message resulted from pointer event

FALSE: Message resulted from keyboard event

ptspointerpos (POINTS) - input

The pointer position is in window coordinates relative to the bottom-left corner of the window. This value is ignored if usPointer is not set to TRUE.

Returns

rc (BOOL) - returns

Processed indicator.

TRUE: Message processed

FALSE: Message ignored

Remarks

This message is posted to the application queue associated with the window that has the focus, or with the window that is to receive the pointer-button information. This message will result from a mouse event, specified by the system value SV_OPEN.

Default Processing

The default window procedure sends the message to the owner window if it exists, otherwise it takes no action on this message, other than to set result to FALSE.