C#教程之WinForm实现同时让两个窗体有激活效果的

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C#教程之WinForm实现同时让两个窗体有激活效果的

本文实例讲述了WinForm实现同时让两个窗体有激活效果的特效。主要采用windows api实现一个窗体激活的时候给另外一个发消息。分享给大家供大家参考。

具体实现方法如下：

using System; 

using System.Windows.Forms; 

using System.Runtime.InteropServices; 

namespace WindowsApplication43 

{ 

  public partial class Form1 : Form 

  { 

    Form frm =null; 

    public Form1() 

    { 

      InitializeComponent(); 

      this.Activated += Form_Activated; 

    } 

    const int WM_NCACTIVATE = 0x86; 

    const int WA_ACTIVE = 0x1; 

    [DllImport("user32.dll", EntryPoint = "SendMessage")] 

    public static extern int SendMessage(IntPtr hWnd, int wMsg, int wParam, int lParam); 

    private void button1_Click(object sender, EventArgs e) 

    { 

      frm = new Form(); 

      frm.Text = "jinjazz"; 

      frm.Activated += Form_Activated; 

      frm.Show(); 

      frm.Location = new System.Drawing.Point(this.Left + this.Width, this.Top); 

      SendMessage(this.Handle, WM_NCACTIVATE, WA_ACTIVE, 0); 

    } 

    void Form_Activated(object sender, EventArgs e) 

    { 

      SendMessage(this.Handle, WM_NCACTIVATE, WA_ACTIVE, 0); 

      if (frm != null) 

        SendMessage(frm.Handle, WM_NCACTIVATE, WA_ACTIVE, 0); 

    } 

  } 

}

希望本文所述对大家的C#程序设计有所帮助。

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