setwindowshookex

SetWindowsHookEx returns 0 when compiling for the .NET 4.0 framework in 32bit machines

由 那年仲夏 提交于 2019-11-27 18:31:08
问题 I'm trying to set a low level windows keyboard hook to grab three keys pressed even if the application is not in focus. To do this I'm calling SetWindowsHookEx as // Create an instance of HookProc. KeyboardHookProcedure = new HookProc(KeyboardHookProc); //install hook hKeyboardHook = SetWindowsHookEx( WH_KEYBOARD_LL, KeyboardHookProcedure, Marshal.GetHINSTANCE( Assembly.GetExecutingAssembly().GetModules()[0]), 0); //If SetWindowsHookEx fails. if (hKeyboardHook == 0) { //Returns the error code

Windows Global Keyboard Hook - Delphi

由 牧云@^-^@ 提交于 2019-11-27 13:18:38
问题 I've created a GLOBAL keyboard hook DLL, using source code found on the internet. For the best part it works brilliant, except when it comes to browsers. It picks up every key in the browser except, it seems, when the browser gets focus, it looses the first key that is pressed. Tested this in IE and Firefox and it seems to be the same for both. For instance, if I open IE and start typing www. , I only get back ww. If the browser window stays in focus no further keys are lost. As soon as the

SetWindowsHookEx fails with error 126

由 你。 提交于 2019-11-27 12:25:04
问题 I'm trying to use the Gma.UserActivityMonitor library in a project and I've faced an error I can not overcome on my own. In the HookManager.Callbacks.cs file there's a static method called EnsureSubscribedToGlobalMouseEvents with the following code (more or less): var asm = Assembly.GetExecutingAssembly().GetModules()[0]; var mar = Marshal.GetHINSTANCE(asm); s_MouseHookHandle = SetWindowsHookEx( WH_MOUSE_LL, s_MouseDelegate, mar, 0); //If SetWindowsHookEx fails. if (s_MouseHookHandle == 0) {

What can cause Windows to unhook a low level (global) keyboard hook?

由 ￡可爱￡侵袭症＋ 提交于 2019-11-27 11:13:25
问题 We have some global keyboard hooks installed via SetWindowsHookEx with WH_KEYBOARD_LL that appear to randomly get unhooked by Windows. We verified that they hook was no longer attached because calling UnhookWindowsHookEx on the handle returns false . (Also verified that it returns true when it was working properly) There doesn't seem to be a consistent repro, I've heard that they can get unhooked due to timeouts or exceptions getting thrown, but I've tried both just letting it sit on a

SetWindowsHookEx failing in .NET 4.0 on 32-bit machine with “module not found”?

由 怎甘沉沦 提交于 2019-11-27 04:32:16
I have found similar questions on this page, but I can't seem to figure out how to interpret the answers or figure out if they are truly duplicates. Here are the possible duplicates I've found, with comments: SetWindowsHookEx returns 0 when compiling for the .NET 4.0 framework in 32bit machines It doesn't seem to return 0 on mine, but I noticed that the handle reported when it crashes (.NET 4.0 on 32-bit) is way different from the handle reported when it runs (.NET 3.5 on 32-bit), like crash handle = 523727, and working handle = 172738378. Calling SetWindowsHookEx inside VS2008 debugger always

SetWindowsHookEx in C#

由 ╄→尐↘猪︶ㄣ 提交于 2019-11-27 01:13:30
I'm trying to hook a 3rd party app so that I can draw to its screen. Drawing to the screen is easy, and I need no help with it, but I seem to be having issues with using SetWindowsHookEx to handle WH_GETMESSAGE . I can't figure out what to pass for the last two parameters. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WindowDrawer { public partial class Form1 : Form { private delegate int HookProc(int code, IntPtr wParam, IntPtr lParam); static

SetWindowsHookEx failing in .NET 4.0 on 32-bit machine with “module not found”?

由 ↘锁芯ラ 提交于 2019-11-26 12:44:55
问题 I have found similar questions on this page, but I can\'t seem to figure out how to interpret the answers or figure out if they are truly duplicates. Here are the possible duplicates I\'ve found, with comments: SetWindowsHookEx returns 0 when compiling for the .NET 4.0 framework in 32bit machines It doesn\'t seem to return 0 on mine, but I noticed that the handle reported when it crashes (.NET 4.0 on 32-bit) is way different from the handle reported when it runs (.NET 3.5 on 32-bit), like

SetWindowsHookEx in C#

由 江枫思渺然 提交于 2019-11-26 09:35:38
问题 I\'m trying to hook a 3rd party app so that I can draw to its screen. Drawing to the screen is easy, and I need no help with it, but I seem to be having issues with using SetWindowsHookEx to handle WH_GETMESSAGE . I can\'t figure out what to pass for the last two parameters. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WindowDrawer { public
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