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{{Legacy
Deregisters a mouse subsystem or environment manager previously registered within a session.
|RepFunc=
|Remarks=This page list the older version of the function for reference.
}}
This call deregisters a mouse subsystem previously registered within a session.  


==Syntax==
==Syntax==
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==Parameters==
==Parameters==
N/A
None


==Return Code==
==Return Code==
rc (USHORT) - return
;''rc'' ([[USHORT]]) - return:Return code descriptions are:
Return code descriptions are:
*0 NO_ERROR
* 0 NO_ERROR
*385 ERROR_MOUSE_NO_DEVICE
* 385 ERROR_MOUSE_NO_DEVICE
*416 ERROR_MOUSE_DEREGISTER
* 416 ERROR_MOUSE_DEREGISTER
*466 ERROR_MOU_DETACHED
* 466 ERROR_MOU_DETACHED
*505 ERROR_MOU_EXTENDED_SG
* 505 ERROR_MOU_EXTENDED_SG


==Remarks==
==Remarks==
Processes issuing MouDeRegister calls must conform to the following rules:
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]] 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.  
*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.
*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.


==Example Code==
==Bindings==
=== C Binding===
=== C ===
<PRE>
<PRE>
#define INCL_MOU
#define INCL_MOU
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USHORT  rc = MouDeRegister(VOID);
USHORT  rc = MouDeRegister(VOID);


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


===MASM Binding===
===MASM===
<PRE>
<PRE>
EXTRN  MouDeRegister:FAR
EXTRN  MouDeRegister:FAR
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Returns WORD
Returns WORD
</PRE>
</PRE>
==Related Functions==
*[[MouRegister]]


[[Category:Mou]]
[[Category:Mou]]

Latest revision as of 16:19, 24 May 2025

Deregisters a mouse subsystem or environment manager previously registered within a session.

Syntax

MouDeRegister ()

Parameters

None

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