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C# Application.AddMessageFilter方法代码示例

本文整理汇总了C#中System.Windows.Forms.Application.AddMessageFilter方法的典型用法代码示例。如果您正苦于以下问题:C# Application.AddMessageFilter方法的具体用法?C# Application.AddMessageFilter怎么用?C# Application.AddMessageFilter使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在System.Windows.Forms.Application的用法示例。


在下文中一共展示了Application.AddMessageFilter方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: PreFilterMessage

// Creates a  message filter.
[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public class TestMessageFilter : IMessageFilter
{
    public bool PreFilterMessage(ref Message m)
    {
        // Blocks all the messages relating to the left mouse button.
        if (m.Msg >= 513 && m.Msg <= 515)
        {
            Console.WriteLine("Processing the messages : " + m.Msg);
            return true;
        }
        return false;
    }
}
开发者ID:.NET开发者,项目名称:System.Windows.Forms,代码行数:15,代码来源:Application.AddMessageFilter

示例2: PreFilterMessage

//引入命名空间
using System;
using System.Threading;
using System.Windows.Forms;
   
public class BlockLeftMouseButtonMessageFilter : IMessageFilter
{
    const int WM_LBUTTONDOWN = 0x201;
    
    public bool PreFilterMessage(ref Message m) {
        if(m.Msg == WM_LBUTTONDOWN)
        {
            Exception LeftButtonDownException;
            
            LeftButtonDownException = new Exception("The left mouse button was pressed.");
            Application.OnThreadException(LeftButtonDownException);
            return true;
        }
        return false;
    }
}
   
public class ApplicationEventHandlerClass
{
    public void OnThreadException(object sender, ThreadExceptionEventArgs e)
    {
        Exception LeftButtonDownException;
        
        LeftButtonDownException = e.Exception;
        Console.WriteLine(LeftButtonDownException.Message);
    }
}
   
public class MainForm : Form
{
    public static void Main()
    {
        ApplicationEventHandlerClass AppEvents = new ApplicationEventHandlerClass();
        MainForm MyForm = new MainForm();
        BlockLeftMouseButtonMessageFilter MsgFilter = new BlockLeftMouseButtonMessageFilter();
   
        Application.AddMessageFilter(MsgFilter);
        Application.ThreadException += new ThreadExceptionEventHandler(AppEvents.OnThreadException);
        Application.Run(MyForm);
    }
   
    public MainForm()
    {
        Text = "Application Exception Test";
    }
}
开发者ID:C#程序员,项目名称:System.Windows.Forms,代码行数:51,代码来源:Application.AddMessageFilter


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