Drawing Points

This topic provides examples that demonstrate how to draw a single pixel and how to draw a point with a pen three-pixels wide.

Drawing a single pixel

Use Plot() to draw a single point in the center of the screen.

... +TPoint screenCenterPoint=rect.Center(); // the center of the screen +... + +// draw a single pixel point in the center of the screen +gc.Plot(screenCenterPoint); +...

Drawing a point three pixels wide

Define a size for the pen tip as a TSize.
Use SetPenSize() to increase the pen width from the default (single pixel). This shows how a plotted point three pixels wide is much easier to see than a single pixel. It is in fact drawn as a "+" shape.
Use Plot() to draw a point in the center of the screen.

... +TPoint screenCenterPoint=rect.Center(); // the center of the screen +... + +// Set up a "bold" size for the pen tip to (default is 1,1) +TSize penSizeBold(3,3); +... + +// draw a "bold" point 3 pixels across +gc.SetPenSize(penSizeBold); +gc.Plot(screenCenterPoint); +...