HANDTEST: Demonstrates Interrupt Handlers in a Microsoft(R) Windows(TM) DLL

HANDTEST displays the number of keyboard interrupts a Microsoft(R) Windows(TM) application receives. HANDTEST calls the HANDLER dynamic link library (DLL) which, in turn, installs the keyboard interrupt handler.

HANDTEST demonstrates how to interface with the interrupt service routine (ISR) in the HANDLER DLL. It also shows how to install an interrupt handler, how to post a message to a Windows application, and how to deinstall the handler.

Run HANDTEST and press any key to initiate the demonstration. The ISR installed from HANDLER reports the number of keyboard interrupts it receives to HANDTEST.

HANDTEST was built and tested under Microsoft Windows version 3.1.

KEYWORDS: DLL; ISR; interrupt; PostMessage; handler; SetTimer;

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