Bindings: C, MASM

This call provides synchronous access for a mouse subsystem to the mouse device driver.

MouSynch (IOWait)

IOWait (USHORT) - input Wait for access. The flag Word is defined as follows:

rc (USHORT) - return Return code descriptions are:

Remarks

MouSynch blocks all other threads within a session until the semaphore clears (returns from the subsystem to the router). To ensure proper synchronization, MouSynch should be issued by a mouse subsystem if it intends to access dynamically modifiable shared data for each session or if it intends to issue a DosDevIOCtl. MouSynch does not protect globally shared data from threads in other sessions.

#define INCL_MOU
 
USHORT  rc = MouSynch(IOWait);
 
USHORT           IOWait;        /* Indicate wait/no wait */
 
USHORT           rc;            /* return code */

EXTRN  MouSynch:FAR
INCL_MOU            EQU 1
 
PUSH   WORD    IOWait        ;Indicate wait/no wait
CALL   MouSynch
 
Returns WORD