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This method retrieves the number of type information interfaces that an object provides, either 0 or 1.
HRESULT GetTypeInfoCount( unsigned int FAR * pctinfo );
Parameters
- pctinfo
- Pointer to a location that receives the number of type
information interfaces provided by the object. If the object
provides type information, this number is 1; otherwise the number
is 0.
Return Values
One of the values described in the following table is returned.
Value Description S_OK Success. E_NOTIMPL Failure. Remarks
The function may return zero, which indicates that the object does not provide any type information. In this case, the object may still be programmable through IDispatch, but does not provide type information for browsers, compilers, or other programming tools that access type information. This can be useful for hiding an object from browsers or for preventing early binding on an object.
Example
This code from the Lines sample file Lines.cpp implements the GetTypeInfoCountmember function for the CLinesclass (ActiveX or OLE object).
STDMETHODIMP CLines::GetTypeInfoCount(UINT FAR* pctinfo) { *pctinfo = 1; return NOERROR; }Requirements
Runs on Versions Defined in Include Link to Windows CE OS 2.0 and later Oaidl.h Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.