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