高分求WPF的屏蔽系统热键的示例代码

andy1020tc 2011-11-18 01:51:22

看清楚是wpf的示例代码应该我之前得到一些代码但是我放到我的wpf程序上去
键盘钩子句柄的值始终是0
不知道为什么
钩子始终没有安装成功但是在winform里测试热键都屏蔽了除了ALT+F4
所以希望给我的是wpf的成功示例代码

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andy1020tc 2011-11-19

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[Quote=引用 7 楼 jshi123 的回复:]

C# code

using System;
using System.Windows;
using System.Runtime.InteropServices;

namespace WpfApplication1
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public……
[/Quote]
大哥真是太崇拜你了我刚去测试了直接就能用
你去回复我另外一个呗把那个分子也给你
另外可以加下我QQ不有什么WPF的问题可以问问你嘿嘿
QQ：25847278

andy1020tc 2011-11-19

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[Quote=引用 7 楼 jshi123 的回复:]

C# code

using System;
using System.Windows;
using System.Runtime.InteropServices;

namespace WpfApplication1
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public……
[/Quote]
把这放到APP去以后呢怎么操作怎么调用我研究WPF没多久很多还不会
希望能解释详细些

jshi123 2011-11-19

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using System;

using System.Windows;

using System.Runtime.InteropServices;



namespace WpfApplication1

{

	/// <summary>

	/// Interaction logic for App.xaml

	/// </summary>

	public partial class App : Application

	{

		private struct KBDLLHOOKSTRUCT

		{

			public int vkCode;

			int scanCode;

			public int flags;

			int time;

			int dwExtraInfo;

		}



		private delegate int LowLevelKeyboardProcDelegate(int nCode, int wParam, ref KBDLLHOOKSTRUCT lParam);



		[DllImport("user32.dll")]

		private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProcDelegate lpfn, IntPtr hMod, int dwThreadId);



		[DllImport("user32.dll")]

		private static extern bool UnhookWindowsHookEx(IntPtr hHook);



		[DllImport("user32.dll")]

		private static extern int CallNextHookEx(int hHook, int nCode, int wParam, ref KBDLLHOOKSTRUCT lParam);



		[DllImport("kernel32.dll")]

		private static extern IntPtr GetModuleHandle(IntPtr path);



		private IntPtr hHook;

		LowLevelKeyboardProcDelegate hookProc; // prevent gc

		const int WH_KEYBOARD_LL = 13;



		public App()

		{

			// hook keyboard

			IntPtr hModule = GetModuleHandle(IntPtr.Zero);

			hookProc = new LowLevelKeyboardProcDelegate(LowLevelKeyboardProc);

			hHook = SetWindowsHookEx(WH_KEYBOARD_LL, hookProc, hModule, 0);

			if (hHook == IntPtr.Zero)

			{

				MessageBox.Show("Failed to set hook, error = " + Marshal.GetLastWin32Error());

			}

		}



		protected override void OnExit(ExitEventArgs e)

		{

			UnhookWindowsHookEx(hHook); // release keyboard hook

			base.OnExit(e);

		}



		private static int LowLevelKeyboardProc(int nCode, int wParam, ref KBDLLHOOKSTRUCT lParam)

		{

			if (nCode >= 0)

				switch (wParam)

				{

					case 256: // WM_KEYDOWN

					case 257: // WM_KEYUP

					case 260: // WM_SYSKEYDOWN

					case 261: // M_SYSKEYUP

						if (

							(lParam.vkCode == 0x09 && lParam.flags == 32) || // Alt+Tab

							(lParam.vkCode == 0x1b && lParam.flags == 32) || // Alt+Esc

							(lParam.vkCode == 0x73 && lParam.flags == 32) || // Alt+F4

							(lParam.vkCode == 0x1b && lParam.flags == 0)  || // Ctrl+Esc

							(lParam.vkCode == 0x5b && lParam.flags == 1)  || // Left Windows Key 

							(lParam.vkCode == 0x5c && lParam.flags == 1))    // Right Windows Key 

						{

							return 1;

						}

						break;

				}

			return CallNextHookEx(0, nCode, wParam, ref lParam);

		}

	}

}

fallincloud 2011-11-18

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额。。



protected override void OnKeyDown(KeyEventArgs e)

		{

			if (Keyboard.Modifiers == ModifierKeys.Alt || Keyboard.Modifiers==ModifierKeys.Control ||

				Keyboard.Modifiers== ModifierKeys.Windows|| Keyboard.Modifiers==ModifierKeys.Shift

				)

			{

				e.Handled = true;

			}

			else

			{

				base.OnKeyDown(e);

			}

		}