Function |
Returns |
Returns True if the passed value is a non-Null IDispatch* value. Otherwise returns False. |
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Returns True if the passed parameter is of type variant Idispatch* and is set to NULL. It will return False if the passed value is a non-NULL IDispatch* value. |
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Compares two variant IDispatch* parameters and returns True if they point to the same COM object. |
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Returns a NULL value of variant type IDispatch*. |