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COleControlSite::InvokeHelper

Visual Studio 2012

Invokes the method or property specified by dwDispID, in the context specified by wFlags.

virtual void AFX_CDECL InvokeHelper( 
   DISPID dwDispID, 
   WORD wFlags, 
   VARTYPE vtRet, 
   void* pvRet, 
   const BYTE* pbParamInfo, 
   ...  
);

Parameters

dwDispID: Identifies the dispatch ID of the property or method, found on the control's IDispatch interface, to be invoked.
wFlags: Flags describing the context of the call to IDispatch::Invoke. For possible wFlags values, see IDispatch::Invoke in the Windows SDK.
vtRet: Specifies the type of the return value. For possible values, see the Remarks section for COleDispatchDriver::InvokeHelper.
pvRet: Address of the variable that will receive the property value or return value. It must match the type specified by vtRet.
pbParamInfo: Pointer to a null-terminated string of bytes specifying the types of the parameters following pbParamInfo. For possible values, see the Remarks section for COleDispatchDriver::InvokeHelper.
...: Variable list of parameters, of types specified in pbParamInfo.

Remarks

The pbParamInfo parameter specifies the types of the parameters passed to the method or property. The variable list of arguments is represented by ... in the syntax declaration.

This function converts the parameters to VARIANTARG values, then invokes the IDispatch::Invoke method on the control. If the call to IDispatch::Invoke fails, this function will throw an exception. If the status code returned by IDispatch::Invoke is DISP_E_EXCEPTION, this function throws a COleDispatchException object, otherwise it throws a COleException.

Requirements

Header: afxocc.h

Reference

COleControlSite Class

Hierarchy Chart

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