NAME
XvPutStill - write a single frame of video to a drawable
SYNOPSIS
#include <X11/extensions/Xvlib.h>
int 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 drawable region size (or the closest size supported) and
clipped to the bounds of the drawable.
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
drawable.
RETURN 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)