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SendInput fails to control mouse in x64

Posted By:      Posted Date: August 28, 2010    Points: 0   Category :.NET Framework
I am currently working on a project in which I'm trying to make a program which can input mouse movements to click and drag objects. I've imported user32.dll and created my inputs exactly as the help info and pinvoke.net instruct so as to be able to send mouse inputs. Nevertheless, whenever I implement the SendInput function, it always returns that it successfully inserted 0 events into the keyboard and mouse input stream and when I run GetLastError, it gives me error 1400 INVALID_WINDOW_HANDLE. I've tried the same code on two different systems, both running in x64. One is XP and the other is Windows 7. Neither works. If you're interested in the code, it's basically a 64-bit version of Johnny Chung Lee's Wiimote Whiteboard program. I've made a few modifications, but the main gruntwork of the program is the same as his original. His stuff can be found here: http://johnnylee.net/projects/wii/

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