wh-keyboard-ll

difference between WH_KEYBOARD and WH_KEYBOARD_LL?

人盡茶涼 提交于 2019-12-28 11:46:29
问题 what is the difference between the working of two ? For WH_KEYBOARD_LL i read that it Installs a hook procedure that monitors low-level keyboard input events. What is meant by low-level keyboard events ? 回答1: Meh, don't focus too much on the term, it doesn't clarify anything. There's a huge difference between the two. WH_KEYBOARD_LL installs a hook that requires the callback to be implemented in your own program. And you must pump a message loop so that Windows can make the callback whenever

difference between WH_KEYBOARD and WH_KEYBOARD_LL?

回眸只為那壹抹淺笑 提交于 2019-12-28 11:46:09
问题 what is the difference between the working of two ? For WH_KEYBOARD_LL i read that it Installs a hook procedure that monitors low-level keyboard input events. What is meant by low-level keyboard events ? 回答1: Meh, don't focus too much on the term, it doesn't clarify anything. There's a huge difference between the two. WH_KEYBOARD_LL installs a hook that requires the callback to be implemented in your own program. And you must pump a message loop so that Windows can make the callback whenever

SetWindowsHookEx WH_KEYBOARD_LL not getting events

南楼画角 提交于 2019-12-09 00:19:18
问题 I am using SetWindowsHookEx() to create a keyboard hook. The creation seems to be successful but the procedure which is registered never gets called. Is there something I am doing wrong? #region Windows API Functions Declarations [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] private static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId); [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention

Correct logic for interpreting SetWindowsHookEx / WH_KEYBOARD_LL

﹥>﹥吖頭↗ 提交于 2019-12-08 04:17:59
问题 What's the correct way to convert a message from SetWindowsHookEx with WH_KEYBOARD_LL into a useful representation of the key pressed? I'm aware this will most likely involve understanding the mappings of the local keyboard. (NB: I'm only considering when a key is pressed, not when it's released for simplicity) Broadly speaking there seem to be three scenarios: Special key pressed (Ctrl/Escape/Shift/Alt) Standard key pressed ( A-Z , 0-9 , etc... Note that a and A both read as A ) Some hard to

SetWindowsHookEx WH_KEYBOARD_LL not getting events

寵の児 提交于 2019-11-30 16:45:25
I am using SetWindowsHookEx() to create a keyboard hook. The creation seems to be successful but the procedure which is registered never gets called. Is there something I am doing wrong? #region Windows API Functions Declarations [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] private static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId); [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] private static extern bool UnhookWindowsHookEx(int idHook); [DllImport(

difference between WH_KEYBOARD and WH_KEYBOARD_LL?

和自甴很熟 提交于 2019-11-28 05:57:52
what is the difference between the working of two ? For WH_KEYBOARD_LL i read that it Installs a hook procedure that monitors low-level keyboard input events. What is meant by low-level keyboard events ? Meh, don't focus too much on the term, it doesn't clarify anything. There's a huge difference between the two. WH_KEYBOARD_LL installs a hook that requires the callback to be implemented in your own program. And you must pump a message loop so that Windows can make the callback whenever it is about to dispatch a keyboard message. Which makes it really easy to get going. WH_KEYBOARD works very