作者chhuang (口白人生)
看板C_Sharp
标题Re: [问题] 请问如何知道外部程式的状态??
时间Fri May 18 10:30:08 2007
http://msdn2.microsoft.com/en-us/library/ms633548.aspx
下面的范例... 拉一个 Button 元件到 Form 上...
按下该按钮会将目前执行中的 notepad 视窗显示在桌面...
(PS. notepad 可能有好几个...只会显示其中一个...)
using System;
using System.Diagnostics;
using System.Runtime.InteropServices; // to import Dll
using System.Windows.Forms;
namespace WindowHandlerTest
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
// to import ShowWindow API of use32.dll
[DllImport("User32")]
private static extern int ShowWindow(int hwnd, int nCmdShow);
// to list Show Comaands
private enum CommandShow : int
{
SW_HIDE = 0,
SW_SHOWNORMAL = 1,
SW_NORMAL = 1,
SW_SHOWMINIMIZED = 2,
SW_SHOWMAXIMIZED = 3,
SW_MAXIMIZE = 3,
SW_SHOWNOACTIVATE = 4,
SW_SHOW = 5,
SW_MINIMIZE = 6,
SW_SHOWMINNOACTIVE = 7,
SW_SHOWNA = 8,
SW_RESTORE = 9,
SW_SHOWDEFAULT = 10,
SW_FORCEMINIMIZE = 11,
SW_MAX = 11
} ;
private static void button1_Click(object sender, EventArgs e)
{
Process[] p = Process.GetProcessesByName("notepad");
if (p.Length > 0)
{
// to get valid Window Handler
int hwnd;
hwnd = p[0].MainWindowHandle.ToInt32();
ShowWindow(hwnd, (int) CommandShow.SW_SHOWDEFAULT);
}
}
}
}
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◆ From: 61.30.74.102
※ 编辑: chhuang 来自: 61.30.74.102 (05/18 10:37)