WM_BUTTON2UP - Parameters

ptspointerpos (POINTS)

Pointer position.

The pointer position is in window coordinates relative to the bottom-left corner of the window.

fsHitTestres (USHORT)

Hit-test result.

fsHitTestres provides the hit-test result. It contains the value returned from the hit-test process, which determines the window to be associated with this message. For details of the possible values, see WM_HITTEST.

fsflags (USHORT)

Keyboard control codes.

In addition to the control codes described with the WM_CHAR message, the following keyboard control codes are valid.

KC_NONE

Indicates that no key is pressed.

rc (BOOL)

Processed indicator.

TRUE

Message processed
FALSE
Message ignored.

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