MouGetNumQueEl

Bindings:  C, MASM 

This call returns the current status for the mouse device driver event 
queue. 

 MouGetNumQueEl    (QueDataRecord, DeviceHandle) 
 

 QueDataRecord (PMOUQUEINFO) - output 
    Address of the mouse queue status structure: 

    numqelements (USHORT) 
       Current number of event queue elements, in the range 0 <> value <> 
       maxnumqelements. 

    maxnumqelements (USHORT) 
       Maximum number of queue elements as specified in the QSIZE = NN 
       parameter in DEVICE=MOUSExxx.SYS statement in CONFIG.SYS. 

 DeviceHandle (HMOU) - input 
    Contains the handle of the mouse device obtained from a previous 
    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 

 The maxnumqelements returned by this function is established during mouse 
 device driver configuration.  See the mouse DEVICE=MOUSExxx.SYS statement 
 in the IBM Operating System/2 Version 1.2 Command Reference for further 
 details.