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DD_GETVPORTSIGNALDATA structure (ddrawint.h)

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The DD_GETVPORTSIGNALDATA structure contains the signal status of the hardware video port.

Syntax

typedef struct _DD_GETVPORTSIGNALDATA {
  PDD_DIRECTDRAW_LOCAL lpDD;
  PDD_VIDEOPORT_LOCAL  lpVideoPort;
  DWORD                dwStatus;
  HRESULT              ddRVal;
  VOID                 *GetVideoSignalStatus;
} *PDD_GETVPORTSIGNALDATA, DD_GETVPORTSIGNALDATA;

Members

lpDD

Points to a DD_DIRECTDRAW_LOCAL structure that is relevant to the current Microsoft DirectDraw process only.

lpVideoPort

Points to a DD_VIDEOPORT_LOCAL structure that represents this video port extensions (VPE) object.

dwStatus

Specifies the location in which the driver should write the status of the signal at the hardware video port. This member can be one of the following values:

Flag Meaning
DDVPSQ_NOSIGNAL No video signal is present at the hardware video port.
DDVPSQ_SIGNALOK A valid video signal is present at the hardware video port.

ddRVal

Specifies the location in which the driver writes the return value of the DdVideoPortGetSignalStatus callback. A return code of DD_OK indicates success. For more information, see Return Values for DirectDraw.

GetVideoSignalStatus

Used by the DirectDraw API and should not be filled in by the driver.

Requirements

Requirement Value
Header ddrawint.h (include Winddi.h)

See also

DdVideoPortGetSignalStatus