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Spy Control
This tutorial shows you how to use the included Spy control to write programs that spy on other Windows programs. You will be able to observe the messages that other Windows applications receive, and your program will also be able to intercept and modify these messages. Thus, your program will be able to monitor other programs and modify their behaviors.
The picture shown below is a screen shot of the sample program that you will write in this tutorial. This sample program intercepts and modifies messages that are sent to the Notepad program. The sample program and the tutorial illustrate how your program can use the Spy control to monitor and modify the behavior of other programs.
Figure 1. You'll
learn to write programs that spy on other Windows programs.
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Testimonials
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12. Spy Control