MouSetEventMask

This call assigns a new event mask to the current mouse device driver.

MouSetEventMask

(EventMask, DeviceHandle)

EventMask (PUSHORT) - input

Address of a value in application storage used to indicate what mouse events are to be placed on the event queue (see MouReadEventQue) and which events are to be ignored.

The EventMask bit values are described below:

Bit

Description
15-7
Reserved, set to zero.
6
Set to report button 3 press/release events, without mouse motion
5
Set to report button 3 press/release events, with mouse motion
4
Set to report button 2 press/release events, without mouse motion
3
Set to report button 2 press/release events, with mouse motion
2
Set to report button 1 press/release events, without mouse motion
1
Set to report button 1 press/release events, with mouse motion
0
Set to mouse motion events with no button press/release events.
A bit clear setting (set to zero) in an EventMask bit position indicates that the associated type of event is not reported to the application. Note also that the mouse buttons are always numbered from left to right. When the mouse is properly positioned for use, the left-hand button is button 1.
DeviceHandle (HMOU) - input
Handle of the mouse device from a previous MouOpen.
rc (USHORT) - return
Return code descriptions are:
• NO_ERROR 385
  ERROR_MOUSE_NO_DEVICE
  466
  ERROR_MOU_DETACHED
  501
  ERROR_MOUSE_NO_CONSOLE
  505
  ERROR_MOU_EXTENDED_SG
  Remarks

  Setting a bit in the event mask means that the associated event is reported on the mouse FIFO event queue. See MouReadEventQue for examples of event mask use.

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