cairoStroke
A drawing operator that strokes the current path according to the
current line width, line join, line cap, and dash settings. After
cairoStroke, the current path will be cleared from the cairo
context. See cairoSetLineWidth, cairoSetLineJoin,
cairoSetLineCap, cairoSetDash, and
cairoStrokePreserve.
cairoStroke(cr)
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Note: Degenerate segments and sub-paths are treated specially and provide a useful result. These can result in two different situations:
1. Zero-length "on" segments set in cairoSetDash. If the cap
style is CAIRO_LINE_CAP_ROUND or CAIRO_LINE_CAP_SQUARE then these
segments will be drawn as circular dots or squares respectively. In
the case of CAIRO_LINE_CAP_SQUARE, the orientation of the squares
is determined by the direction of the underlying path.
2. A sub-path created by cairoMoveTo followed by either a
cairoClosePath or one or more calls to cairoLineTo to the
same coordinate as the cairoMoveTo. If the cap style is
CAIRO_LINE_CAP_ROUND then these sub-paths will be drawn as circular
dots. Note that in the case of CAIRO_LINE_CAP_SQUARE a degenerate
sub-path will not be drawn at all, (since the correct orientation
is indeterminate).
In no case will a cap style of CAIRO_LINE_CAP_BUTT cause anything
to be drawn in the case of either degenerate segments or sub-paths.
Derived by RGtkGen from GTK+ documentation
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