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VB.NET Application.AddMessageFilter方法代码示例

本文整理汇总了VB.NET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:VB.NET Application.AddMessageFilter方法的具体用法?VB.NET Application.AddMessageFilter怎么用?VB.NET Application.AddMessageFilter使用的例子?那么恭喜您, 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VB.NET代码示例。

示例1: PreFilterMessage

' Creates a message filter.
<SecurityPermission(SecurityAction.LinkDemand, Flags := SecurityPermissionFlag.UnmanagedCode)> _
Public Class TestMessageFilter
    Implements IMessageFilter

    <SecurityPermission(SecurityAction.Demand)> _
    Public Function PreFilterMessage(ByRef m As System.Windows.Forms.Message) _
    As Boolean Implements IMessageFilter.PreFilterMessage
        ' Blocks all the messages relating to the left mouse button.
        If ((m.Msg >= 513) And (m.Msg <= 515)) Then
            Console.WriteLine("Processing the messages : " & m.Msg)
            Return True
        End If
        Return False
    End Function
End Class
开发者ID:VB.NET开发者,项目名称:System.Windows.Forms,代码行数:16,代码来源:Application.AddMessageFilter

示例2: MessageFilter

' 导入命名空间
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Math

public class MessageFilter
   public Shared Sub Main
         Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Public Class NoLeftDownMessageFilter
        Implements IMessageFilter

        Public Function PreFilterMessage(ByRef m As System.Windows.Forms.Message) As Boolean Implements IMessageFilter.PreFilterMessage
            Const WM_LBUTTONDOWN As Long = &H201
            Return (m.Msg = WM_LBUTTONDOWN)
        End Function
    End Class

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim no_left_down_message_filter As New NoLeftDownMessageFilter
        Application.AddMessageFilter(no_left_down_message_filter)
    End Sub

    Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
        Application.UseWaitCursor = Not Application.UseWaitCursor
    End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        End If
        MyBase.Dispose(disposing)
    End Sub

    Private components As System.ComponentModel.IContainer

    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.SuspendLayout()
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Text = "UseMessageFilter"
        Me.ResumeLayout(False)

    End Sub

End Class
开发者ID:VB程序员,项目名称:System.Windows.Forms,代码行数:57,代码来源:Application.AddMessageFilter


注:本文中的System.Windows.Forms.Application.AddMessageFilter方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。