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Reference for unit 'System' (#rtl)

DispCallByIDProc

Callback to perform dispatch interface procedure call by ID.

Declaration

Source position: objpash.inc line 453

var DispCallByIDProc: CodePointer;

Description

VarDispProc is called by the compiler if it needs to perform an interface call from a variant which contains a dispatch interface. For instance, the following call:

Var
  V : OleVariant;
begin
  (V as IWord).OpenDocument('c:\temp\mydoc.doc');
end;

where IWord is a dispatch interface is encoded by the compiler and passed to DispCallByIDProc.

This pointer must be set by a routine that calls the OS COM handling routines.