Specifies the arc mode. You can pass ArcChord or
ArcPieSlice.
display
Specifies the connection to the X server.
gc
Specifies the GC.
graphics_exposures
Specifies a Boolean value that indicates whether you want
GraphicsExpose and NoExpose events to be reported when calling
XCopyArea(3) and XCopyPlane(3) with this
GC.
subwindow_mode
Specifies the subwindow mode. You can pass ClipByChildren or
IncludeInferiors.
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.