XSetFillStyle, XSetFillRule - GC convenience routines
int XSetFillStyle(Display *display, GC gc, int
    fill_style);
int XSetFillRule(Display *display, GC gc, int
    fill_rule);
  - display
- Specifies the connection to the X server.
- fill_rule
- Specifies the fill-rule you want to set for the specified GC. You can pass
      EvenOddRule or WindingRule.
- fill_style
- Specifies the fill-style you want to set for the specified GC. You can
      pass FillSolid, FillTiled, FillStippled, or
      FillOpaqueStippled.
- gc
- Specifies the GC.
The XSetFillStyle function sets the fill-style in the specified GC.XSetFillStyle can generate BadAlloc, BadGC,
    and BadValue errors.
The XSetFillRule function sets the fill-rule in the
    specified GC.
XSetFillRule can generate BadAlloc, BadGC,
    and BadValue errors.
  - 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 argument, the full
      range defined by the argument's type is accepted. Any argument defined as
      a set of alternatives can generate this error.
XCreateGC(3), XQueryBestSize(3), XSetArcMode(3), XSetClipOrigin(3), XSetFont(3),
  XSetLineAttributes(3), XSetState(3), XSetTile(3)
Xlib - C Language X Interface