<HTML>
<HEAD>
<TITLE>XSetLineAttributes</TITLE>
</HEAD>
<BODY>
<PRE>



XSetLineAttributes(3X11)       XLIB FUNCTIONS	     XSetLineAttributes(3X11)



NAME
  XSetLineAttributes, XSetDashes - GC convenience routines

SYNTAX
  XSetLineAttributes(display, gc, line_width, line_style, cap_style,
  join_style)
	Display *display;
	GC gc;
	unsigned int line_width;
	int line_style;
	int cap_style;
	int join_style;

  XSetDashes(display, gc, dash_offset, dash_list, n)
	  Display *display;
	  GC gc;
	  int dash_offset;
	  char dash_list[];
	  int n;

ARGUMENTS

  cap_style Specifies the line-style and cap-style you want to set for the
	    specified GC.  You can pass CapNotLast, CapButt, CapRound, or
	    CapProjecting.

  dash_list Specifies the dash-list for the dashed line-style you want to set
	    for the specified GC.

  dash_offset
	    Specifies the phase of the pattern for the dashed line-style you
	    want to set for the specified GC.

  display   Specifies the connection to the X server.

  gc	    Specifies the GC.

  join_style
	    Specifies the line join-style you want to set for the specified
	    GC.	 You can pass JoinMiter, JoinRound, or JoinBevel.

  line_style
	    Specifies the line-style you want to set for the specified GC.
	    You can pass LineSolid, LineOnOffDash, or LineDoubleDash.

  line_width
	    Specifies the line-width you want to set for the specified GC.

  n	    Specifies the number of elements in dash_list.




DESCRIPTION
  The XSetLineAttributes function sets the line drawing components in the
  specified GC.

  XSetLineAttributes can generate BadAlloc, BadGC, and BadValue errors.

  The XSetDashes function sets the dash-offset and dash-list attributes for
  dashed line styles in the specified GC.  There must be at least one element
  in the specified dash_list, or a BadValue error results. The initial and
  alternating elements (second, fourth, and so on) of the dash_list are the
  even dashes, and the others are the odd dashes.  Each element specifies a
  dash length in pixels.  All of the elements must be nonzero, or a BadValue
  error results.  Specifying an odd-length list is equivalent to specifying
  the same list concatenated with itself to produce an even-length list.

  The dash-offset defines the phase of the pattern, specifying how many pix-
  els into the dash-list the pattern should actually begin in any single
  graphics request.  Dashing is continuous through path elements combined
  with a join-style but is reset to the dash-offset between each sequence of
  joined lines.

  The unit of measure for dashes is the same for the ordinary coordinate sys-
  tem.	Ideally, a dash length is measured along the slope of the line, but
  implementations are only required to match this ideal for horizontal and
  vertical lines.  Failing the ideal semantics, it is suggested that the
  length be measured along the major axis of the line.	The major axis is
  defined as the x axis for lines drawn at an angle of between -45 and +45
  degrees or between 135 and 225 degrees from the x axis.  For all other
  lines, the major axis is the y axis.

  XSetDashes can generate BadAlloc, BadGC, and BadValue errors.

DIAGNOSTICS

  BadAlloc  The server failed to allocate the requested resource or server
	    memory.

  BadGC	    A value for a GContext argument does not name a defined GContext.

  BadValue  Some numeric value falls outside the range of values accepted by
	    the request.  Unless a specific range is specified for an argu-
	    ment, the full range defined by the argument's type is accepted.
	    Any argument defined as a set of alternatives can generate this
	    error.

SEE ALSO
  XCreateGC(3X11), XQueryBestSize(3X11), XSetArcMode(3X11),
  XSetClipOrigin(3X11), XSetFillStyle(3X11), XSetFont(3X11), XSetState(3X11),
  XSetTile(3X11)
  Xlib - C Language X Interface






















</PRE>
</BODY>
</HTML>
