WinQueryQueueInfo: Difference between revisions

Latest revision as of 13:57, 13 December 2019

Checks whether HMQ is already defined

WinQueryQueueInfo( hmq, pmqiMqinfo, cbCopied )

hmq (HMQ) - input

Queue handle.

It must be created by a previous call to WinCreateMsgQueue or HMQ_CURRENT.

pmqiMqinfo (PMQINFO) - output

Message queue information structure to contain the queue information.

cbCopied (ULONG) - input

Size of message queue information structure that is provided (in bytes).

Specifies the maximum number of bytes to be copied into the pmqiMqinfo parameter. This should be the size of an MQINFO structure.

rc (BOOL) - returns

Success indicator.

TRUE - Successful completion

FALSE - Error occurred.

@@ Line 1: / Line 1: @@
-Check whether HMQ is already defined:
+Checks whether HMQ is already defined
 ==Syntax==
-     HMQ hmqCurrent = WinQueryQueueInfo( HMQ_CURRENT, &mqinfo, sizeof( MQINFO ) );
+ WinQueryQueueInfo( hmq, pmqiMqinfo, cbCopied )
+==Parameter==
+;hmq ([[HMQ]]) - input:Queue handle.
+:It must be created by a previous call to [[WinCreateMsgQueue]] or HMQ_CURRENT.
+;pmqiMqinfo (P[[MQINFO]]) - output:Message queue information structure to contain the queue information.
+;cbCopied (ULONG) - input:Size of message queue information structure that is provided (in bytes).
+:Specifies the maximum number of bytes to be copied into the pmqiMqinfo parameter. This should be the size of an MQINFO structure.
+;rc (BOOL) - returns:Success indicator.
+::TRUE - Successful completion
+::FALSE - Error occurred.
 [[Category:Win]]