RAD Studio VCL Reference
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ISpecialWinHelpViewer.CallWinHelp Method
ISpecialWinHelpViewer Interface | ISpecialWinHelpViewer Members | HelpIntfs Namespace | Description
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Pass Help request directly to engine.

Pascal
function CallWinHelp(Handle: LongInt; const HelpFile: string; Command: Word; Data: LongInt): Boolean;
C++
__fastcall Boolean CallWinHelp(LongInt Handle, const AnsiString HelpFile, Word Command, LongInt Data);
Description

The RTL Help System calls CallWinHelp when it receives a Windows-style Help request that cannot be generalized as a Topic-based or Context-based request. CallWinHelp should pass the request directly to the Windows winhelp() API or to a functional equivalent.  

CallWinHelp should return true if it was able to handle the request. 

 

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