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====== MouDeRegister ======
This call deregisters a mouse subsystem previously registered within a session. 
===== Syntax =====
 MouDeRegister ()
===== Parameters =====
N/A
===== Return Code =====
rc (USHORT) - return:Return code descriptions are:
  * 0 NO_ERROR
  * 385 ERROR_MOUSE_NO_DEVICE
  * 416 ERROR_MOUSE_DEREGISTER
  * 466 ERROR_MOU_DETACHED
  * 505 ERROR_MOU_EXTENDED_SG
===== Remarks =====
Processes issuing MouDeRegister calls must conform to the following rules:
  *The process that issued the MouRegister must release the session (by a MouDeRegister) from the registered subsystem before another PID may issue MouRegister. 
  *The process that issued the MouRegister is the only process that may issue MouDeRegister against the currently registered subsystem. 
  *After the owning process has released the subsystem with a MouDeRegister, any other process in the session may issue a MouRegister and therefore modify the mouse support for the entire session.
===== Bindings =====
==== C ====
#define INCL_MOU
USHORT  rc = MouDeRegister(VOID);
USHORT  rc;            /* return code */
====MASM====
EXTRN  MouDeRegister:FAR
INCL_MOU            EQU 1
CALL   MouDeRegister
Returns WORD
===== Related Functions =====
[[MouRegister]] 
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