DDHAL_UPDATEVPORTDATA (Windows CE 5.0)

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This structure contains the information required to start, stop, and change the video port. This structure passes the information to the DirectDraw hardware abstraction layer (DDHAL) UpdateVideoPort callback function.

typedef struct _DDHAL_UPDATEVPORTDATA {LPDDRAWI_DIRECTDRAW_LCLlpDD;LPDDRAWI_DDVIDEOPORT_LCLlpVideoPort;LPDDRAWI_DDRAWSURFACE_INT* lplpDDSurface;LPDDRAWI_DDRAWSURFACE_INT* lplpDDVBISurface;LPDDVIDEOPORTINFOlpVideoInfo;DWORDdwFlags;DWORDdwNumAutoflip;DWORDdwNumVBIAutoflip;HRESULTddRVal;LPDDHALVPORTCB_UPDATEUpdateVideoPort;} DDHAL_UPDATEVPORTDATA;

Members

  • lpDD**
    Pointer to the DDRAWI_DIRECTDRAW_LCL structure that represents the DirectDraw object.

  • lpVideoPort**
    Pointer to the DDRAWI_DDVIDEOPORT_LCL structure that represents this video port.

  • lplpDDSurface
    Pointer to an array of surface structures that represent regular video surfaces. This member points to an array of surface structures to accommodate auto-flipping.

  • lplpDDVBISurface**
    Pointer to an array of surface structures that represent VBI surfaces. This member points to an array of surface structures to accommodate auto-flipping.

  • lpVideoInfo**
    Pointer to a DDVIDEOPORTINFO structure that describes the transfer of video data to a surface.

  • dwFlags**
    Control flags for the video port.

    The following table shows the possible flags.

    Flag Description
    DDRAWI_VPORTSTART Indicates that the video port is being started.
    DDRAWI_VPORTSTOP Indicates that the video port is being stopped.
    DDRAWI_VPORTUPDATE Indicates that the video port is being updated.

  • dwNumAutoflip**
    Contains the number of surfaces in the list if auto-flipping is requested. If this value is greater than 1, lplpDDSurface and lplpDDVBISurface are arrays.

  • dwNumVBIAutoflip**
    Contains the number of surfaces in the list if auto-flipping is requested. This pertains to devices that can pump the VBI data to a different surface. If this value is greater than 1, lplpDDSurface and lplpDDVIBSurface are arrays.

  • ddRVal**
    Passes the DirectDraw return values.

  • UpdateVideoPort**
    This member is used by DirectDraw and should not be filled in by the driver.

Requirements

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Ddrawi.h.

See Also

UpdateVideoPort | DDRAWI_DIRECTDRAW_LCL | DDVIDEOPORTINFO | Video Port Structures

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