塗りつぶしパネルやその他のコントロールでアルファベットのアニメーションコントロールを使用したいが、コードが100%動作しない。 私のコードでアニメーションが点滅しています。 doublebuffered変数をtrueに設定すると、コントロールの背景が黒に置き換えられます。 Parent.Invalidateの代わりにMe.Invalidate()を使用すると、私のアニメーションペインティングは非常にバグです。VB.netアニメーションパネルの塗りつぶしパネル
Imports System.Reflection
Public Class Form1
Private Sub FlowLayoutPanel1_Paint(sender As Object, e As PaintEventArgs)
Dim TheControl As Control = CType(sender, Control)
Dim oRAngle As Rectangle = New Rectangle(0, 0, TheControl.Width, TheControl.Height)
Dim oGradientBrush As Brush = New Drawing.Drawing2D.LinearGradientBrush(oRAngle, Color.White, Color.SteelBlue, Drawing.Drawing2D.LinearGradientMode.ForwardDiagonal)
e.Graphics.FillRectangle(oGradientBrush, oRAngle)
End Sub
Public Shared Sub DoubleBufferedSet(ByVal dgv As Object, ByVal setting As Boolean)
Dim dgvType As Type = dgv.[GetType]()
Dim pi As PropertyInfo = dgvType.GetProperty("DoubleBuffered", BindingFlags.Instance Or BindingFlags.NonPublic)
pi.SetValue(dgv, setting, Nothing)
End Sub
Private Sub FlowLayoutPanel1_Resize(sender As Object, e As EventArgs)
sender.Invalidate()
End Sub
Dim flowlayoutpanel1 As New FlowLayoutPanels
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
flowlayoutpanel1.Dock = DockStyle.Fill
AddHandler flowlayoutpanel1.Paint, AddressOf FlowLayoutPanel1_Paint
AddHandler flowlayoutpanel1.Resize, AddressOf FlowLayoutPanel1_Resize
Me.Controls.Add(flowlayoutpanel1)
DoubleBufferedSet(flowlayoutpanel1, True)
Dim testc1 As New OpaqControl
testc1.Size = New Size(300, 100)
flowlayoutpanel1.Controls.Add(testc1)
Dim testc2 As New OpaqControl
testc2.Size = New Size(300, 100)
flowlayoutpanel1.Controls.Add(testc2)
End Sub
End Class
Public Class OpaqControl
Inherits Control
Private Timer1 As New Timer()
Dim up As Boolean = True
Dim poss As Integer = 1
Public Sub New()
'DoubleBuffered = True
AddHandler Timer1.Tick, AddressOf TickHandler
Me.Timer1.Interval = 10
End Sub
Protected Sub TickHandler(sender As Object, e As EventArgs)
If up Then
poss += 2
If poss >= 80 Then Me.Timer1.Enabled = False
Else
poss -= 2
If poss <= 0 Then Me.Timer1.Enabled = False
End If
Parent.Invalidate(New Rectangle(Me.Location, Me.Size), True)
'Me.Invalidate()
End Sub
Protected Overrides Sub OnMouseEnter(e As EventArgs)
up = True
Me.Timer1.Enabled = True
MyBase.OnMouseEnter(e)
End Sub
Protected Overrides Sub OnMouseLeave(e As EventArgs)
up = False
Me.Timer1.Enabled = True
MyBase.OnMouseLeave(e)
End Sub
Protected Overrides ReadOnly Property CreateParams() As CreateParams
Get
Dim cp As CreateParams = MyBase.CreateParams
cp.ExStyle = cp.ExStyle Or &H20
Return cp
End Get
End Property
Protected Overrides Sub OnPaintBackground(pevent As PaintEventArgs)
End Sub
Protected Overrides Sub OnPaint(e As PaintEventArgs)
e.Graphics.FillRectangle(New SolidBrush(Color.FromArgb(50, 0, 100, 255)), New Rectangle(0, 0, 300, 100))
e.Graphics.FillRectangle(New SolidBrush(Color.FromArgb(50, 0, 0, 0)), New Rectangle(0, 100 - poss, 300, 80))
e.Graphics.DrawString("Test", Font, Brushes.Yellow, New Point(100, 100 - poss))
End Sub
End Class
私の悪い英語のために申し訳ありません。 私の問題を理解するために私のコードを試してください(アポストロフィを削除してみてください)。
私はVB 2015を使用しています。 私は第三者のDLLを使用しません。 私はWPFを使いたくありません。