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X11R7.4 - man page for xvputstill (x11r4 section 3)

XvPutStill(3)			     Library Functions Manual			    XvPutStill(3)

Name
       XvPutStill - write a single frame of video to a drawable

Syntax
       #include <X11/extensions/Xvlib.h>

       XvPutStill(Display *dpy, XvPortID port, Drawable d, GC gc,
		  int vx, int vy, unsigned int vw, unsigned int vh,
		  int dx, int dy, unsigned int dw, unsigned int dh);

Arguments
       dpy	      Specifies the connection to the X server.

       port	      Defines the port from which to get the still.

       d	      Defines  the  drawable  into which the still is to be written.  Pixmaps are
		      currently not supported.

       gc	      Defines the graphical context.  GC components are: subwindow-mode,  clip-x-
		      origin, clip-y-origin, and clip-mask.

       vx,vy,vw,vh    Define  the location and size of the video region to be written.	vx and vy
		      define the upper-left pixel of the region. vw and vh define the  width  and
		      height, in pixels, of the region.

       dx,dy,dw,dh    Define the location and size of the destination region into which the still
		      image is written.  dx and dy define the upper-left corner of the region. dw
		      and dh define the width and height, in pixels, of the region.

Description
       XvPutStill(3)  writes a single frame of video to a drawable.  The position and size of the
       source (video) rectangle is specified by vx, vy, vw, and vh.  The position and size of the
       destination (drawable) rectangle is specified by dx, dy, dw, and dh.

       Video  data  is clipped to the bounds of the video encoding, scaled to the requested draw-
       able region size (or the closest size supported) and clipped to the bounds  of  the  draw-
       able.

       If  the	port  is grabbed by another client, this request is ignored, and an XvVideoNotify
       event with detail XvBusy is generated for the drawable.	If the port is	not  receiving	a
       valid  video signal a VideoNotify event with detail XvHardError is generated for the draw-
       able.

Returned Values
       [Success]
	       Returned if XvPutStill(3) completed successfully.

       [XvBadExtension]
	       Returned if the Xv extension is unavailable.

       [XvBadAlloc]
	       Returned if XvGetStill(3) failed to allocate memory to process the request.

Diagnostics
       [XvBadPort]
	       Generated if the requested port does not exist.

       [BadDrawable]
	       Generated if the requested drawable does not exist.

       [BadGC] Generated if the requested graphics context does not exist.

       [BadAlloc]
	       Generated if there were insufficient resources to process the request.

See Also
       XvPutVideo(3), XvGetStill(3), XvVideoNotify(3)

X Version 11				   libXv 1.0.4				    XvPutStill(3)


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