JCL Help:TJclFileMapping.FileHandle

 JCL Help: TJclFileMapping.FileHandle Property

TJclFileMapping

► TJclFileMapping Methods

[+] TJclFileMapping Methods

► TJclFileMapping Properties

[+] TJclFileMapping Properties

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Summary

Handle of the underlying file.

Pascal

 public property FileHandle: THandle;

Description

Copy of the handle passed to the constructor. Mostly for your convenience, the class does not actually use the handle. However, it is copied using DuplicateHandle and closed on destruction. As such, you can use it as a storage place for the filehandle in case you need it later. Note that you are not supposed to manipulate a file both through a filemapping and the file manipulation routines since the operating system can no longer guarantee that the two remain coherent. If you must use the handle after the TJclFileMapping class has been destroyed then you must copy it using DuplicateHandle. Note that if you decide to use the Handle as such you are still required to close the original handle using CloseHandle!

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Wim De Cleen

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