打开开始菜单

本文介绍了打开开始菜单的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

如何在C#中打开开始菜单?请帮助我

How do I open the start menu in C#? Please help me

推荐答案

将此添加到标题中: Add this in your header: using System.Runtime.InteropServices;

将变量声明放在类级别上:

Place the variable declarations on the class level :

[DllImport("User32")] private static extern int keybd_event(Byte bVk, Byte bScan, long dwFlags, long dwExtraInfo); private const byte UP = 2; private const byte CTRL = 17; private const byte ESC = 27;

最后，在要打开开始菜单的事件中，请使用:

Finally on the event where you want to open start menu use :

// Press Ctrl-Esc key to open Start menu keybd_event(CTRL, 0, 0, 0); keybd_event(ESC, 0, 0, 0); // Need to Release those two keys keybd_event(CTRL, 0, UP, 0); keybd_event(ESC, 0, UP, 0);

开始菜单将打开.

The start menu will open.

这可以通过将"Ctrl + Esc"发送到系统来完成，就好像它是通过按下Windows键(或Ctrl + Esc在键盘上生成)一样旧式键盘). This can be done by sending "Ctrl+Esc" to the system as if it was generated on the keyboard by pressing the Windows key (or Ctrl+Esc on legacy keyboards). private static void ShowStartMenu() { // key down event: const byte keyControl = 0x11; const byte keyEscape = 0x1B; keybd_event(keyControl, 0, 0, UIntPtr.Zero); keybd_event(keyEscape, 0, 0, UIntPtr.Zero); // key up event: const uint KEYEVENTF_KEYUP = 0x02; keybd_event(keyControl, 0, KEYEVENTF_KEYUP, UIntPtr.Zero); keybd_event(keyEscape, 0, KEYEVENTF_KEYUP, UIntPtr.Zero); } [DllImport("user32.dll")] static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, UIntPtr dwExtraInfo);

此解决方案是使用位于以下位置的文档开发的: 使用keybd_event()函数进行键盘事件模拟 [ ^ ]. PInvoke签名是从www.pinvoke获得的.

This solution was developed using the documentation found at: Keyboard Events Simulation using keybd_event() function[^]. The PInvoke signature was otained from www.pinvoke.

感谢您引用代码.这真的很有帮助.现在我也可以做其他键了. Thanks for referencing your code. It was really helpful. Now i can do for other keys too.