BANGALORE, INDIA: This tip describes common display driver problems and explains how you can use the Graphics Device Interface (GDI) test in the Windows CE .NET Test Kit (CETK).

The Graphics Device Interface (GDI) Microsoft Windows CE .NET Test Kit (CETK) is a collection of tests developed by the internal Windows CE .NET Quality Assurance (QA) team to test GDI and display drivers.

Although this test suite does not contain all the tests used by the internal QA team, it contains a very large percentage of the tests. Along with the binary versions of the tests, the source code for the GDI CETK is also shipped to assist with debugging. In this article, I'll be going over some tricks for using the GDI CETK efficiently, reviewing common display driver problems, and explaining how to use the GDI CETK to expose these common problems.