ITypeInfo::GetFuncDesc

项目
06/30/2006

This method retrieves the FUNCDESC structure that contains information about a specified function.

HRESULT GetFuncDesc( 
  unsigned int index, 
  FUNCDESC FAR* FAR* ppFuncDesc 
);

Parameters

index
[in] Index of the function whose description is to be returned. The index should be in the range of 0 to 1 less than the number of functions in this type.
ppFuncDesc
[out] On return, pointer to a pointer to a FUNCDESC that describes the specified function.

Return Values

The following table shows the return values for this function.

Value	Description
S_OK	Success.
E_OUTOFMEMORY	Out of memory.
E_INVALIDARG	One or more of the parameters is invalid.
TYPE_E_IOERROR	The function could not read from the file.
TYPE_E_INVDATAREAD	Invalid data.
TYPE_E_UNSUPFORMAT	The type library has an older format.
TYPE_E_INVALIDSTATE	The type library could not be opened.

Remarks

The function GetFuncDesc provides access to a FUNCDESC structure that describes the function with the specified index. The FUNCDESC should be freed with ITypeInfo::ReleaseFuncDesc. The number of functions in the type is one of the attributes contained in the TYPEATTR structure.

Example

CHECKRESULT(ptypeinfo->GetFuncDesc(i, &pfuncdesc));
idMember = pfuncdesc->elemdescFunc.ID;
CHECKRESULT(ptypeinfo->GetDocumentation(idMember, &bstrName, NULL, NULL, NULL));
ptypeinfo->ReleaseFuncDesc(pfuncdesc);

Requirements

OS Versions: Windows CE 2.0 and later.
Header: Oaidl.h, Oaidl.idl.
Link Library: Oleaut32.lib, Uuid.lib.

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