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-.TH XvSetPortAttribute 3X
-.\" $XFree86: xc/doc/man/Xv/XvSetPortAttribute.man,v 1.4 1999/03/02 11:49:17 dawes Exp $
-.SH Name
-XvSetPortAttribute \- sets an attribute of a video port
-.\"
-.SH Syntax
-\fB#include <X11/extensions/Xvlib.h>\fR
-.sp 1l
-\fBXvSetPortAttribute(\fIdpy, port, attribute, value\fR)
-.sp 1l
-\fBDisplay \fI*dpy\fR;
-.br
-\fBXvPortID \fIport\fR;
-.br
-\fBAtom \fIattribute\fR;
-.br
-\fBint \fIvalue\fR;
-.SH Arguments
-.\"
-.IP \fIdpy\fR 15
-Specifies the display screen on which the
-Xv Server is to accept requests from Xv clients. If the
-display option is not specified, Xv uses the display screen
-specified by your DISPLAY environment variable. The display
-option has the format hostname:number. Using two colons
-(::) instead of one (:) indicates that DECnet is to be used
-for transport.
-.IP \fIport\fR 15
-Specifies the port for which the attribute is to be used.
-.IP \fIattribute\fR 15
-Identifies the port attribute to be set by this request.
-Can be one of the table entries under the column "String," below.
-.IP \fIvalue\fR 15
-Identifies the value to which \fIattribute\fP is to be set.
-Can be one of the table entries under the column "Type," below.
-.\"
-.SH Description
-XvSetPortAttribute(3X) permits a client to set the port attribute
-to specified values. This request supports the following values:
-.bp
-.PP
-.\".TS
-.\"tab(@);
-.\"lfHB lfHB lfHB
-.\"lfR lfR lfR .
-.\"_
-.\".PP
-.\".sp 4p
-.\"Attribute String@Type@Default
-.\".sp 6p
-.\"_
-.\".sp 6p
-.\""XV_ENCODING"@XvEncodingID@Server dependent
-.\""XV_HUE"@[-1000...1000]@0
-.\""XV_SATURATION"@[-1000...1000]@0
-.\""XV_BRIGHTNESS"@[-1000...1000]@0
-.\""XV_CONTRAST"@[-1000...1000]@0
-.\".sp 6p
-.\".TE
-.nf
-Attribute String Type Default
-
-"XV_ENCODING" XvEncodingID Server dependent
-"XV_HUE" [-1000...1000] 0
-"XV_SATURATION" [-1000...1000] 0
-"XV_BRIGHTNESS" [-1000...1000] 0
-"XV_CONTRAST" [-1000...1000] 0
-.TE
-.PP
-The supplied encoding must be one of the encodings listed for the
-adaptor, otherwise an Encoding error results.
-.PP
-If the adaptor does not support the exact hue, saturation,
-brightness, and contrast levels supplied, the closest levels
-supported are assumed. Use XvGetPortAttribute(3X)
-to query the resulting levels.
-.PP
-When an XvSetPortAttribute(3X) request is processed, a
-PortControlNotify(3X) event is generated for all clients
-that have requested for port changes using XvSelectPortNotify(3X).
-.SH Returned Values
-.IP [Success] 8
-Returns True if XvSetPortAttribute(3X) completed successfully.
-.IP [XvBadExtension] 8
-Returned if the Xv extension is unavailable.
-.IP [XvBadAlloc] 8
-Returned if XvSelectVideoNotify(3X) failed to allocate memory to process
-the request.
-.SH Diagnostics
-.IP [XvBadPort] 8
-Generated if the requested port does not exist.
-.IP [XvBadEncoding] 8
-Generated if an encoding is specified that does not exist.
-.IP [BadMatch] 8
-Generated if the requested attribute atom does not specify an attribute
-supported by the adaptor.
-.SH See Also
-.\"
-XvGetPortAttribute(3X), XvSelectPortNotify(3X), XvPortNotify(3X)
-.br