Precautions While Taking Measurements

The sample modules display a color patch that changes between cyan, magenta, and yellow as the end user takes measurements. When taking measurements from the monitor display using a hardware puck, it is important to ensure that the window displaying the patch is not obscured inadvertently by some other window tool. The sample modules prevent interference by using Motif's override shells, which are always on top of every other window. If by chance another window is moved into the color patch display region, that window passes under the override shell window and does not disturb the color patch display.