CHECKER1: Demonstrates Simple Hit-testing for the Mouse

CHECKER1 divides the client area into a 5-by-5 array of 25 rectangles. If you click the mouse on one of the rectangles, the rectangle is filled with an X. If you click there again, the X is removed. CHECKER1 has no keyboard interface.

CHECKER1 is a companion application for “Programming Windows” by Charles Petzold. The source code for this application has not been modified or tested by Microsoft Corporation.

{ewc navigate.dll, ewbutton, /Bcodeview /T"Click to open or copy files in the checker1 project." /C"samples}