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ITypeInfo::GetVarDesc

This method retrieves a VARDESC structure that describes the specified variable.

HRESULT GetVarDesc( 
  unsigned int index, 
  VARDESC FAR* FAR* ppVarDesc 
);

Parameters

  • index
    [in] Index of the variable whose description is to be returned. The index should be in the range of 0 to 1 less than the number of variables in this type.
  • ppVarDesc
    [out] On return, pointer to a pointer to a VARDESC that describes the specified variable.

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

To free the VARDESC structure, use ITypeInfo::ReleaseVarDesc.

Example

CHECKRESULT(ptypeinfo->GetVarDesc(i, &pvardesc));
idMember = pvardesc->memid;
CHECKRESULT(ptypeinfo->GetDocumentation(idMember, &bstrName, NULL, NULL, 
NULL));
ptypeinfo->ReleaseVarDesc(pvardesc);

Requirements

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

See Also

ITypeInfo | ITypeInfo::ReleaseVarDesc | VARDESC

Last updated on Wednesday, April 13, 2005

© 2005 Microsoft Corporation. All rights reserved.