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IPin::QueryDirection

  • Articolo
 
Microsoft DirectShow 9.0

IPin::QueryDirection

The QueryDirection method retrieves the direction of the pin (input or output).

Syntax

  HRESULT QueryDirection(
  PIN_DIRECTION *pPinDir
);

Parameters

pPinDir

[out] Pointer to a variable that receives a member of the PIN_DIRECTION enumerated type.

Return Value

Returns an HRESULT value. Possible values include the following.

Value Description
S_OK Success.
E_POINTER Null pointer argument.

Requirements

Header: Declared in Strmif.h; include Dshow.h.

Library: Use Strmiids.lib.

See Also