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prop_messagehook.htm
Navigation:  Language Reference > App C - PROP: Runtime Properties > Complete Property List >====== PROP:MessageHook ====== Previous pageReturn to chapter overviewNext page

A property of the SYSTEM built-in variable that sets the override procedure for the MESSAGE internal Clarion procedure. Equivalent to {PROP:LibHook,6}. Assign the ADDRESS of the overriding procedure, and the runtime library will call the overriding procedure instead of the MESSAGE procedure. Assign zero and the runtime library will once again call its internal procedure. The overriding procedure's prototype must be exactly the same as the MESSAGE procedure found in the BUILTINS.CLW file. (WRITE-ONLY)

prop_messagehook.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1