VB.Net/GUI/Frame Form

Материал из VB Эксперт
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Form Opacity in VB

 
Imports System
Imports System.Drawing
Imports System.Collections
Imports System.ruponentModel
Imports System.Windows.Forms
Imports System.Data
Imports System.Configuration
Imports System.Resources
Public Class Form1
    Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
    Public Sub New()
        MyBase.New()
        "This call is required by the Windows Form Designer.
        InitializeComponent()
        "Add any initialization after the InitializeComponent() call
    End Sub
    "Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub
    "Required by the Windows Form Designer
    Private components As System.ruponentModel.IContainer
    "NOTE: The following procedure is required by the Windows Form Designer
    "It can be modified using the Windows Form Designer.  
    "Do not modify it using the code editor.
    Friend WithEvents timer1 As System.Windows.Forms.Timer
    Friend WithEvents label1 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.ruponents = New System.ruponentModel.Container()
        Me.timer1 = New System.Windows.Forms.Timer(Me.ruponents)
        Me.label1 = New System.Windows.Forms.Label()
        Me.SuspendLayout()
        "
        "timer1
        "
        "
        "label1
        "
        Me.label1.Location = New System.Drawing.Point(96, 24)
        Me.label1.Name = "label1"
        Me.label1.TabIndex = 1
        Me.label1.Text = "Click On Me!"
        Me.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        "
        "Form1
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 70)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.label1})
        Me.Name = "Form1"
        Me.Opacity = 0.7
        Me.Text = "Opacity = 0.5"
        Me.ResumeLayout(False)
    End Sub
#End Region
    Private Sub Form1_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Activated
        " timer1.Enabled = True
    End Sub
    Private Sub timer1_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles timer1.Tick
        If Me.Opacity < 1.0 Then Me.Opacity = Me.Opacity + 0.1
        Me.Text = "Opacity = " & Me.Opacity.ToString()
    End Sub

    Private Sub Form1_Deactivate(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Deactivate
        timer1.Enabled = False
    End Sub
    Private Sub label1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles label1.Click
        If Me.Opacity < 1.0 Then Me.Opacity = Me.Opacity + 0.1
        Me.Text = "Opacity = " & Me.Opacity.ToString()
    End Sub
End Class

Public Class MainClass
    Shared Sub Main()
        Dim myform As Form = New Form1()
        Application.Run(myform)
    End Sub
End Class


Get Frame Client Rectangle Size

 
Imports System
Imports System.ruponentModel
Imports System.Windows.Forms
Imports System.Data
Imports System.Configuration
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Globalization
Imports System.Text
Imports System.Collections
Public Class MainClass
    Shared Sub Main()
        Dim myform As Form = New Form1()
        Application.Run(myform)
    End Sub
End Class
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Button1.Location = New Point( _
            Me.ClientRectangle.Width - Button1.Width, _
            Me.ClientRectangle.Height - Button1.Height)
        Button1.Anchor = AnchorStyles.Bottom Or AnchorStyles.Right
    End Sub
End Class
<Global.Microsoft.VisualBasic.rupilerServices.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
    "Required by the Windows Form Designer
    Private components As System.ruponentModel.IContainer
    "NOTE: The following procedure is required by the Windows Form Designer
    "It can be modified using the Windows Form Designer.  
    "Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button
        Me.SuspendLayout()
        "
        "Button1
        "
        Me.Button1.Location = New System.Drawing.Point(24, 24)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(75, 23)
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "Button1"
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(185, 84)
        Me.Controls.Add(Me.Button1)
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)
    End Sub
    Friend WithEvents Button1 As System.Windows.Forms.Button
End Class


Non rectangle window in VB

 
Imports System
Imports System.Drawing
Imports System.Collections
Imports System.ruponentModel
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Data
Imports System.Configuration
Imports System.Resources
Public Class TransparentForm
    Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
    Public Sub New()
        MyBase.New()
        "This call is required by the Windows Form Designer.
        InitializeComponent()
        "Add any initialization after the InitializeComponent() call
        Me.SetStyle(ControlStyles.ResizeRedraw, True)
    End Sub
    "Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub
    "Required by the Windows Form Designer
    Private components As System.ruponentModel.IContainer
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(208, 68)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None
        Me.Name = "TransparentForm"
        Me.Text = "Transparency Test"
    End Sub
#End Region
    Private Sub TransparentForm_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
        Dim g As Graphics = e.Graphics
        Dim _pen As Pen = New Pen(Color.DarkBlue, 4)
        Dim rect As Rectangle = Me.ClientRectangle
        rect.Inflate(-2, -2)
        g.FillEllipse(Brushes.Yellow, rect)
        g.DrawEllipse(_pen, rect)
        _pen.Dispose()
        Dim _font As Font = New Font(Me.Font, FontStyle.Bold)
        Dim format As StringFormat = New StringFormat()
        format.Alignment = StringAlignment.Center
        format.LineAlignment = StringAlignment.Center
        g.DrawString("Window", _font, Brushes.DarkBlue, RectangleF.op_Implicit(Me.ClientRectangle), format)
        _font.Dispose()
    End Sub
    Sub SetEllipseRegion()
        Dim rect As Rectangle = Me.ClientRectangle
        Dim path As GraphicsPath = New GraphicsPath()
        path.AddEllipse(RectangleF.op_Implicit(rect))
        Me.Region = New Region(path)
        path.Dispose()
    End Sub
    Private Sub TransparentForm_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
        SetEllipseRegion()
    End Sub
    Private Sub TransparentForm_SizeChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.SizeChanged
        SetEllipseRegion()
    End Sub
End Class
Public Class MainClass
    Shared Sub Main()
        Dim myform As Form = New TransparentForm()
        Application.Run(myform)
    End Sub
End Class


Resetting a Form

  
Imports System.Windows.Forms
Module MainModule
    Public Sub ResetForm(ByVal FormToReset As Form)
        Dim objControl As Control
        For Each objControl In FormToReset.Controls
            If TypeOf (objControl) Is System.Windows.Forms.TextBox Then
                objControl.Text = "" " Clear TextBox
            ElseIf TypeOf (objControl) Is System.Windows.Forms.CheckBox Then
                Dim objCheckBox As System.Windows.Forms.CheckBox = objControl
                objCheckBox.Checked = False " Uncheck CheckBox
            ElseIf TypeOf (objControl) Is System.Windows.Forms.ruboBox Then
                Dim objComboBox As System.Windows.Forms.ruboBox = objControl
                objComboBox.SelectedIndex = -1 " Deselect any ComboBox entry
            End If
        Next
    End Sub
End Module


Simple window frame

 
Imports System
Imports System.Windows.Forms
Class MyFirstForm
    Inherits Form
    Private WithEvents mybutton As Button
    Public Sub New()
        Me.Text = "Hello, WinForms!"
        mybutton = New Button()
        mybutton.Text = "Click Me!"
        Me.Controls.Add(mybutton)
    End Sub
    Public Sub mybutton_Click(sender As Object, e As EventArgs) Handles mybutton.Click
        MessageBox.Show("Message")
    End Sub
    Shared Sub Main()
        Dim myform As Form = New MyFirstForm()
        Application.Run(myform)
    End Sub
End Class


Snap to Control

  
Imports System.Windows.Forms
Imports System.Drawing
Public Class Form1
    Inherits System.Windows.Forms.Form
    Public Sub New()
        MyBase.New()
        InitializeComponent()
    End Sub
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents LinkLabel1 As System.Windows.Forms.LinkLabel
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form1))
        Me.Button1 = New System.Windows.Forms.Button()
        Me.LinkLabel1 = New System.Windows.Forms.LinkLabel()
        Me.SuspendLayout()
        "
        Me.Button1.Image = CType(resources.GetObject("Button1.Image"), System.Drawing.Bitmap)
        Me.Button1.Location = New System.Drawing.Point(192, 48)
        Me.Button1.Size = New System.Drawing.Size(168, 64)
        "
        Me.LinkLabel1.Location = New System.Drawing.Point(24, 16)
        Me.LinkLabel1.Text = "Click here to snap!"
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(544, 182)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.LinkLabel1, Me.Button1})
        Me.Text = "Snapping to a Control"
        Me.ResumeLayout(False)
    End Sub
    Private Sub LinkLabel1_LinkClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.LinkLabelLinkClickedEventArgs) Handles LinkLabel1.LinkClicked
        SnapToControl(Button1)
    End Sub
    Public Sub SnapToControl(ByVal Control As Control)
        Dim objPoint As Point = Control.PointToScreen(New Point(0, 0))
        Cursor.Position = objPoint
    End Sub
End Class
Источник — «http://vbex.ru/index.php?title=VB.Net/GUI/Frame_Form&oldid=539»