Redraw when Form resizing : Form Paint « GUI « VB.Net Tutorial






Redraw when Form resizing
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class ResizeRedraw
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Private Sub Form1_Paint(ByVal sender As Object, _
     ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
        DrawGraphics(e.Graphics)
    End Sub

     
    Private Sub Form1_Resize(ByVal sender As Object, _
     ByVal e As System.EventArgs) Handles MyBase.Resize
        DrawGraphics(Me.CreateGraphics())
    End Sub

    Private Sub DrawGraphics(ByVal gr As Graphics)
        gr.Clear(Me.BackColor)
        gr.DrawRectangle(Pens.Black, 0, 0, _
            Me.ClientSize.Width - 1, _
            Me.ClientSize.Height - 1)
    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

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.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.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.Name = "Form1"
        Me.Text = "PaintResizeX"
        Me.ResumeLayout(False)
    End Sub
End Class








14.52.Form Paint
14.52.1.Set Form.ResizeRedrawSet Form.ResizeRedraw
14.52.2.Form InvalidateForm Invalidate
14.52.3.Form Refresh is faster than the Form InvalidateForm Refresh is faster than the Form Invalidate
14.52.4.Redraw when Form resizingRedraw when Form resizing