在 C# 中沒有提供方法用來對 MessageBox 進行定位,但是通過 C++ 你可以查找窗口并移動它們,本文講述如何在 C# 中對 MessageBox 進行定位。
首先需在代碼上引入所需名字空間:
 
using System.Runtime.InteropServices;using System.Threading;
在你的 Form 類里添加如下 DllImport 屬性:
 
[DllImport("user32.dll")]static extern IntPtr FindWindow(IntPtr classname, string title); // extern method: FindWindow [DllImport("user32.dll")]static extern void MoveWindow(IntPtr hwnd, int X, int Y, int nWidth, int nHeight, bool rePaint); // extern method: MoveWindow [DllImport("user32.dll")]static extern bool GetWindowRect(IntPtr hwnd, out Rectangle rect); // extern method: GetWindowRect接下來就可以查找窗口并移動它:
 
void FindAndMoveMsgBox(int x, int y, bool repaint, string title){  Thread thr = new Thread(() => // create a new thread  {    IntPtr msgBox = IntPtr.Zero;    // while there's no MessageBox, FindWindow returns IntPtr.Zero    while ((msgBox = FindWindow(IntPtr.Zero, title)) == IntPtr.Zero) ;    // after the while loop, msgBox is the handle of your MessageBox    Rectangle r = new Rectangle();    GetWindowRect(msgBox, out r); // Gets the rectangle of the message box    MoveWindow(msgBox /* handle of the message box */, x , y,      r.Width - r.X /* width of originally message box */,      r.Height - r.Y /* height of originally message box */,      repaint /* if true, the message box repaints */);  });  thr.Start(); /: starts the thread}你要在 MessageBox.Show 之前調用這個方法,并確保 caption 參數不能為空,因為 title 參數必須等于 caption 參數。
使用方法:
 FindAndMoveMsgBox(0,0,true,"Title");MessageBox.Show("Message","Title");| 
 
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