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IAMOverlayFX::GetOverlayFX

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Microsoft DirectShow 9.0

IAMOverlayFX::GetOverlayFX

The GetOverlayFX method retrieves the effects currently applied to the overlay surface, if any. The application can call this method while the filter graph is running.

Syntax

  HRESULT GetOverlayFX(
  DWORD *lpdwOverlayFX
);

Parameters

lpdwOverlayFX

[out] Pointer a variable that receives a value indicating which effects, if any, are currently applied to the overlay surface. The value is a logical combination of flags from the AMOVERLAYFX enumeration.

Return Values

Returns an HRESULT value that depends on the implementation of the interface. The DirectShow implementation returns S_OK if successful, or E_POINTER to indicate a NULL pointer argument.

Requirements

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

Library: Use Strmiids.lib.

See Also