Hello,

I have been looking for a way to mimic a hardware interrupt in software.

For example, how would someone send a mouse click interrupt virtually to a different program without actually clicking the mouse? I have seen ways to handle interrupts, but never a way to generate the interrupt.

Does the OS (linux for example) have a global interrupt array where I can set a hardware interrupt (even though it's probably dangerous to do that)?

I'm sorry I have no code, as this is not for a class nor for any work project. I have been thinking of program automation techniques and this concerpt has been on my mind for quite some time now.

Thanks,
PPAN

I don't know about Linux, but Windows has concept called "hooks" where the OS calls your callback function when a certain event happens (the event depends on the type of hook -- it can be a mouse click, a keyboard press, a message send, etc).

Thanks. I read a little about hooks and they seem pretty neat. I read that they intercept events, so I wonder can I intercept a MOUSECLICK event and then intead call a KEYBOARD event callback function instead

Most modern operating systems are not going to give your userland applications (memory) access to interrupt vector tables. If, by some kernel method, you obtain a pointer to the memory locations, altering them would likely cause kernel faults that could be catastropic.

As noted by UG, the windowing system is probably the preferred way to "send" mouse clicks and other "events" to an application(s). You can easily "hook" these events through your windowing subsystem on both Windows and Linux (X Window system).


:davis: