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IMSVidDeviceEvent::StateChange Method

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This topic applies to Windows XP or later.
The StateChange method signals that the state of the device has changed.

Syntax

HRESULT StateChange(
  [in]  IMSVidDevice *plpd,
  [in]  long oldState,
  [in]  long newState
);

Parameters

  • plpd [in]
    Pointer to the device object that signaled the change.

  • oldState [in]
    Specifies the old state as an MSVidCtlStateList value.

  • newState [in]
    Specifies the new state as an MSVidCtlStateList value.

Return Value

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Remarks

The dispatch identifier (dispid) of this method is eventidStateChange.

Requirements

Header Declared in Dshow.h.
DLL Requires Quartz.dll.

See Also

IMSVidDeviceEvent Interface

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Build date: 12/4/2008