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Fast Keyboard/Mouse Test
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In this short snippet, I will show you a Win32 function that checks whether a button is pressed or not. The good thing is that you don't need to handle the WM_KEYDOWN message. The second advantage is that it is really easy to use and that it can be used everywhere in the code. Here is the function-definition: SHORT GetAsyncKeyState( int vKey // virtual-key code ); vKey is the virtual key code of the keyboard or mouse button you want to test. GetAsyncKeyState(..) returns true if this button is pressed and false if not. I always use GetAsyncKeyState(..) for my games and demos because it can be used simply like this without a long message handle. Here is a little example how to use it: void CheckKeyboard() { //Escape is down if (GetAsyncKeyState(VK_ESCAPE)) { PostMessage(hWnd,WM_CLOSE,0,0); } //Right mouse is down if (GetAsyncKeyState(VK_RBUTTON)) { //.. //Do something //.. } } In this function, we will check what keys are down. You could now use this function in your main loop or somewhere else in your code. Here is a list of the most important virtual key codes:
That's it! If you run into problems, simply m@il me. Happy Coding! |
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