RAD Studio VCL Reference
TAutoObject.Invoke Method

Provides access to Automation properties and methods exposed by an object that supports the IDispatch interface.

function Invoke(DispID: Integer; const IID: TGUID; LocaleID: Integer; Flags: Word; var Params; VarResult: Pointer; ExcepInfo: Pointer; ArgErr: Pointer): HResult; virtual; stdcall;
virtual __fastcall __stdcall HRESULT Invoke(int DispID, const TGUID IID, int LocaleID, Word Flags,  Params, void * VarResult, void * ExcepInfo, void * ArgErr);

Invoke implements the IDispatch interface Invoke method. Invoke is the standard mechanism for accessing the exposed properties and methods of an Automation object. Invoke calls the Invoke method for the interface represented by the TAutoObject, passing it the parameters specified by the function. 


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