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VioModeUndo


Bindings:  C, MASM 

This call allows one thread within a process to cancel a VioModeWait 
issued by another thread within the same process. 
 VioModeUndo     (OwnerIndic, KillIndic, Reserved) 
 
 OwnerIndic (USHORT) - input 
    Indicates whether the thread issuing VioModeUndo wants ownership of 
    VioModeWait to be reserved for its process. 
    Value     Definition 
    0         Reserve ownership 
    1         Give up ownership. 
 KillIndic (USHORT) - input 
    Indicates whether the thread (with the outstanding VioModeWait) should 
    be returned an error code or be terminated. 
    Value     Definition 
    0         Return error code 
    1         Terminate thread. 
 Reserved (USHORT) - input 
    Reserved word of 0s. 
 rc (USHORT) - return 
    Return code descriptions are: 
    0         NO_ERROR 
    421       ERROR_VIO_INVALID_PARMS 
    422       ERROR_VIO_FUNCTION_OWNED 
    427       ERROR_VIO_NO_MODE_THREAD 
    430       ERROR_VIO_ILLEGAL_DURING_POPUP 
    465       ERROR_VIO_DETACHED 
    486       ERROR_VIO_BAD_RESERVE 
    494       ERROR_VIO_EXTENDED_SG 
 
 Remarks 
 VioModeUndo may be issued only by a thread within the process that owns 
 VioModeWait.  The thread issuing VioModeUndo can either reserve ownership 
 of the VioModeWait function for its process or give up ownership.  The 
 thread whose VioModeWait is cancelled is optionally terminated. 

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