【使用chrome浏览器】使用C#在应用程序之间发送消息

软件水平学习指南 2025-07-31 网络整理 可可

【shitiku.jxxyjl.com--软件水平学习指南】

       首先建立两个c#应用程序项目。
  
  第一个项目包含一个windows form(form1),在form1上有一个button和一个textbox。
  
  第二个项目包含一个windows form(form1),在form1上有两个button,分别用来测试第一个应用程序中button的click事件和修改第一个应用程序中textbox的值。
  
  第一个应用程序中form的代码如下:
  
  using system;
  using system.drawing;
  using system.collections;
  using system.componentmodel;
  using system.windows.forms;
  
  public class form1 : system.windows.forms.form {
   private system.windows.forms.button button1;
   private system.windows.forms.textbox textbox1;
  
   private system.componentmodel.container components = null;
  
   [stathread]
   static void main() {
   application.run(new form1());
   }
  
   public form1()
   {
   initializecomponent();
   }
   protected override void dispose( bool disposing )
   {
   if( disposing )
   {
    if(components != null)
    {
    components.dispose();
    }
   }
   base.dispose( disposing );
   }
  
   #region windows 窗体设计器生成的代码
   private void initializecomponent()
   {
   this.button1 = new system.windows.forms.button();
   this.textbox1 = new system.windows.forms.textbox();
   this.suspendlayout();
   //
   // button1
   //
   this.button1.location = new system.drawing.point(32, 24);
   this.button1.name = "button1";
   this.button1.tabindex = 0;
   this.button1.text = "button1";
   this.button1.click = new system.eventhandler(this.button1_click);
   //
   // textbox1


   //
   this.textbox1.location = new system.drawing.point(32, 64);
   this.textbox1.name = "textbox1";
   this.textbox1.tabindex = 1;
   this.textbox1.text = "textbox1";
   //
   // form1
   //
   this.autoscalebasesize = new system.drawing.size(6, 14);
   this.clientsize = new system.drawing.size(292, 266);
   this.controls.add(this.textbox1);
   this.controls.add(this.button1);
   this.name = "form1";
   this.text = "form1"; 
   this.resumelayout(false);
  
   }
   #endregion
  
   private void button1_click(object sender, system.eventargs e) {
   messagebox.show("this is button1 click!");
   }
  }
  
  第二个应用程序中form的代码如下:
  
  using system;
  using system.text;
  using system.drawing;
  using system.collections;
  using system.componentmodel;
  using system.windows.forms;
  using system.runtime.interopservices;
  
  public class testform1 : system.windows.forms.form {
   private system.windows.forms.button button1;
   private system.windows.forms.button button2;
  
   private system.componentmodel.container components = null;
  
   [stathread]
   static void main() {
   application.run(new testform1());
   }
  
   public testform1()
   {
   initializecomponent();
   }
   protected override void dispose( bool disposing )
   {
   if( disposing )
   {
    if(components != null)
    {
    components.dispose();
    }
   }


   base.dispose( disposing );
   }
  
   #region windows 窗体设计器生成的代码
   private void initializecomponent()
   {
   this.button1 = new system.windows.forms.button();
   this.button2 = new system.windows.forms.button();
   this.suspendlayout();
   //
   // button1
   //
   this.button1.location = new system.drawing.point(32, 24);
   this.button1.name = "button1";
   this.button1.tabindex = 0;
   this.button1.text = "button1";
   this.button1.click = new system.eventhandler(this.button1_click);
   //
   // button2
   //
   this.button2.location = new system.drawing.point(32, 64);
   this.button2.name = "button2";
   this.button2.tabindex = 0;
   this.button2.text = "button2";
   this.button2.click = new system.eventhandler(this.button2_click);
   //
   // testform1
   //
   this.autoscalebasesize = new system.drawing.size(6, 14);
   this.clientsize = new system.drawing.size(292, 266);
   this.controls.add(this.button1);
   this.controls.add(this.button2); 
   this.name = "testform1";
   this.text = "testform1"; 
   this.resumelayout(false);
  
   }
   #endregion
  
   private void button1_click(object sender, system.eventargs e) {
   intptr hwnd_win ; 
   intptr hwnd_button ;
  
   hwnd_win = findwindow("windowsforms10.window.8.app3","form1");
   hwnd_button = findwindowex(hwnd_win ,new intptr(0) ,"windowsforms10.button.app3","button1"); 
  
   const int bm_click = 0x00f5;
   message msg = message.create(hwnd_button ,bm_click ,new intptr(0),new intptr(0));
   postmessage(msg.hwnd ,msg.msg ,msg.wparam ,msg.lparam);
   }
   private void button2_click(object sender, system.eventargs e) {
   const int wm_char = 0x0102;
   intptr hwnd_win ;
   intptr hwnd_textbox ;


  
   hwnd_win = findwindow("windowsforms10.window.8.app3","form1"); 
   hwnd_textbox = findwindowex(hwnd_win ,new intptr(0) ,"windowsforms10.edit.app3","textbox1");  
   
   string strtext = "测试aaa";
   unicodeencoding encode = new unicodeencoding();
   char[] chars = encode.getchars(encode.getbytes(strtext));
   message msg ;
   foreach (char c in chars ) {
    msg = message.create(hwnd_textbox ,wm_char ,new intptr(c),new intptr(0));
    postmessage(msg.hwnd ,msg.msg ,msg.wparam ,msg.lparam);
   }
   }
  
   [dllimport("user32.dll")]
   public static extern intptr findwindow(string lpclassname, string lpwindowname);
  
   [dllimport("user32.dll")]
   public static extern intptr findwindowex(intptr hwndparent,intptr hwndchildafter,string lpszclass,string lpszwindow);
  
   [dllimport("user32.dll",charset=charset.unicode)] 
   public static extern intptr postmessage(intptr hwnd,int wmsg,intptr wparam,intptr lparam);
  }
  
  以上代码可以在vs.net中编译运行,也可以使用csc.exe编译,如使用一下命令行:
  
  f:>csc.exe form1.cs
  
  f:>csc.exe testform1.cs
  
  编译后生成两个.exe文件。
  
  首先运行第一个程序,显示form1窗体,然后运行第二个程序,显示testform1窗体。
  
  在testform1窗体上点击button1按钮(向form1窗体上的button1发送消息)此时显示对话框提示“this is button1 click!”。
  
  在testform1窗体上点击button2按钮(向form1窗体上的textbox1发送消息)此时在form1上的textbox1上显示“测试aaa”。

首先建立两个c#应用程序项目。
  
  第一个项目包含一个windows form(form1),在form1上有一个button和一个textbox。
  
  第二个项目包含一个windows form(form1),在form1上有两个button,分别用来测试第一个应用程序中button的click事件和修改第一个应用程序中textbox的值。
  
  第一个应用程序中form的代码如下:
  
  using system;
  using system.drawing;
  using system.collections;
  using system.componentmodel;
  using system.windows.forms;
  
  public class form1 : system.windows.forms.form {
   private system.windows.forms.button button1;
   private system.windows.forms.textbox textbox1;
  
   private system.componentmodel.container components = null;
  
   [stathread]
   static void main() {
   application.run(new form1());
   }
  
   public form1()
   {
   initializecomponent();
   }
   protected override void dispose( bool disposing )
   {
   if( disposing )
   {
    if(components != null)
    {
    components.dispose();
    }
   }
   base.dispose( disposing );
   }
  
   #region windows 窗体设计器生成的代码
   private void initializecomponent()
   {
   this.button1 = new system.windows.forms.button();
   this.textbox1 = new system.windows.forms.textbox();
   this.suspendlayout();
   //
   // button1
   //
   this.button1.location = new system.drawing.point(32, 24);
   this.button1.name = "button1";
   this.button1.tabindex = 0;
   this.button1.text = "button1";
   this.button1.click = new system.eventhandler(this.button1_click);
   //
   // textbox1

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