Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. SetWindowsHookExA function winuser. Please rate your experience Yes No. Any additional feedback? Note The winuser. In this article. Installs a hook procedure that monitors messages before the system sends them to the destination window procedure.
For more information, see the CallWndProc hook procedure. Installs a hook procedure that monitors messages after they have been processed by the destination window procedure. For more information, see the CallWndRetProc hook procedure. Installs a hook procedure that receives notifications useful to a CBT application. For more information, see the CBTProc hook procedure.
Installs a hook procedure useful for debugging other hook procedures. For more information, see the DebugProc hook procedure. Installs a hook procedure that will be called when the application's foreground thread is about to become idle.
Start our hack. We can see that everything was completed successfully and at this point whenever we start a program, pop-up our message only when keyboard key is pressed. There is a caveat. This technique is not working in my Windows 10 x64 machine. I think the reason is this: CIG block this technique. Yuhong Bao Yuhong Bao 3, 1 1 gold badge 18 18 silver badges 18 18 bronze badges. Hey, thanks for interest. Sorry for just begging for a solution, but I completely don't know how to do that.
A console app is not the best kind of app to test things like this. The console window is in another process. Try creating a new window via CreateWindow if you want to test. From what I've read by putting the hook into a DLL it injects processes. Does it mean that capturing the mouse will work on my desktop, menu start etc. What about title bar of applications? I've seen some posts over the Internet with such problems, but don't know if they failed with something or there's some kind of limitation or another approach.
Should work. Asked 11 years, 6 months ago. Active 3 years, 4 months ago. Viewed 10k times. I am using the following code to get mouse messages on the current process. Any ideas? Improve this question. Itay Karo. Itay Karo Itay Karo Patrick Klug: Also on release mode. Mouse messages - especially if you have a high-resolution mouse - come fast and furious: it doesn't take long for them to pile up if they're not quickly dispatched. Two things to check: 1 watch the performance of your process during the time the hook is being installed you may want to arrange for the hook to be installed automatically during an otherwise "quiet" period to make this easier.
If you're not pumping messages quickly enough, it won't take much for you to cause a backlog. Shog9: Pre-Jitting didn't help. I'll try to check the performance when I will find the time. Thanks for your help : — Itay Karo. Show 1 more comment. Active Oldest Votes. Improve this answer.
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