==== MouGetEventMask ====

**Bindings**: [[getevmask#C bindings|C]], [[getevmask#MASM bindings|MASM]]

This call returns the current value of the mouse event queue mask. 

//MouGetEventMask// (EventMask, DeviceHandle) 

//EventMask// (**PUSHORT**) - output 
Address in application storage where the current mouse device driver's event mask is returned to the caller by the mouse device driver. 

The //EventMask// is set by [[en:ibm:prcp:mou:getevmask|MouSetEventMask]], and has the following definition: 

^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 report mouse motion events with no button press/release events. |

//DeviceHandle// (**HMOU**) - input 
Handle of the mouse device from a previous [[en:ibm:prcp:mou:open|MouOpen]]. 

//rc// (**USHORT**) - return 
Return code descriptions are: 

|0 |NO_ERROR |
|385 |ERROR_MOUSE_NO_DEVICE |
|466 |ERROR_MOU_DETACHED |
|501 |ERROR_MOUSE_NO_CONSOLE |
|505 |ERROR_MOU_EXTENDED_SG |

**Remarks** 

Buttons are logically numbered from left to right. 

=== C bindings ===

<code c>
#define INCL_MOU

USHORT  rc = MouGetEventMask(EventMask, DeviceHandle);

PUSHORT          EventMask;     /* Event Mask word */
HMOU             DeviceHandle;  /* Mouse device handle */

USHORT           rc;            /* return code */
</code>

=== MASM bindings ===

<code asm>
EXTRN  MouGetEventMask:FAR
INCL_MOU            EQU 1

PUSH@  WORD    EventMask     ;Event Mask word
PUSH   WORD    DeviceHandle  ;Mouse device handle
CALL   MouGetEventMask

Return WORD
</code>