JCL Help:QueryMutex

 JCL Help: QueryMutex Function

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Summary

Returns information about a mutex object.

Pascal

 function QueryMutex(Handle: THandle; var Info: TMutexInfo): Boolean;

Parameters

Parameters	Description
Handle: THandle	Handle of the mutex object for which you want information.
var Info: TMutexInfo	Received information about the mutex. TMutexInfo is defined as: TMutexInfo = record SignalState: Longint; Owned: Boolean; Abandoned: Boolean; end; The following table describes the members of this record:

Return Value

If the function succeeds it returns True, otherwise it returns False. In the latter case the contents of the Info parameter are undefined.

Description

QueryMutex returns information about the mutex object specified by Handle. The information is returned in a TMutexInfo record and contains members to indicate whether the mutex is signaled and owned.

About

Unit

JclSynch

Donator

Marcel van Brakel

Contributors

Anonymous

Notes

This function relies on undocumented information and uses an undocumented API call.

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