Bouncer defines one variable, szAppName, used by routines in SCRNSAVE.LIB, as follows:
char szAppName[] = "ScreenSaver.Bouncer"; // Substitute your own name
The szAppName variable identifies the name of the screen saver. The name to the right of the period is a unique name for the screen saver.
Bouncer also declares the following external variables.
extern HANDLE hMainInstance;
extern HWND hMainWindow;
These external variables are defined in SCRNSAVE.LIB. They contain handles to the application instance and main window.