Example: Line cap

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public static int main (string[] args) {
	// Create a context:
	Cairo.ImageSurface surface = new Cairo.ImageSurface (Cairo.Format.ARGB32, 200, 80);
	Cairo.Context context = new Cairo.Context (surface);

	// Draw lines:
	context.set_source_rgba (0, 0, 1, 1);
	context.set_line_width (10);

	// Line 1:
	context.set_line_cap (Cairo.LineCap.SQUARE);
	context.move_to (10, 20);
	context.rel_line_to (180, 0);
	context.stroke ();

	// Line 2:
	context.set_line_cap (Cairo.LineCap.ROUND);
	context.move_to (10, 40);
	context.rel_line_to (180, 0);
	context.stroke ();

	// Line 3:
	context.set_line_cap (Cairo.LineCap.BUTT);
	context.move_to (10, 60);
	context.rel_line_to (180, 0);
	context.stroke ();

	// Save the image:
	surface.write_to_png ("img.png");

	return 0;
}

 valac --pkg cairo line-cap.vala

See:

• Cairo.Context.set_line_cap
• Cairo.LineCap

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• Example Listing