в 16:40, 26 мая 2010

2010-05-26T16:40:30Z

Admin: 1 версия

2010-05-26T12:56:41Z

1 версия

Новая страница

==Drag and drop irregular window==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TransparentFormDemo
public Shared Sub Main
Application.Run(New TransparentForm)
End Sub
End class
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
"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()
"
"TransparentForm
"
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.Red, 4)
Dim rect As Rectangle = Me.ClientRectangle
rect.Inflate(-2, -2)
g.FillEllipse(Brushes.Yellow, rect)
g.DrawEllipse(pen, rect)
pen.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
Dim downpoint As Point = Point.Empty
Private Sub TransparentForm_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseDown
If e.Button <> MouseButtons.Left Then Exit Sub
downpoint = New Point(e.X, e.Y)
End Sub
Private Sub TransparentForm_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseMove
If downpoint = Point.Empty Then Exit Sub
Dim location As Point = New Point(me.Left + e.X - downpoint.X, me.Top + e.Y - downpoint.Y)
Me.Location = location
End Sub
Private Sub TransparentForm_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseUp
If e.Button <> MouseButtons.Left Then Exit Sub
downpoint = Point.Empty
End Sub
End Class</source>

==Form Hole==

<source lang="vbnet">Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
public class FormHole
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
TransparencyKey = BackColor
Label1.BackColor = TransparencyKey
End Sub
Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
Dim thick_pen As New Pen(Color.Black, 10)
Dim rect As New Rectangle( _
e.ClipRectangle.X + 10, _
e.ClipRectangle.Y + 10, _
e.ClipRectangle.Width - 20, _
e.ClipRectangle.Height - 20)
e.Graphics.DrawEllipse(thick_pen, rect)
thick_pen.Dispose()
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 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.Label1 = New System.Windows.Forms.Label
Me.SuspendLayout()
"
"Label1
"
Me.Label1.AutoSize = True
Me.Label1.BackColor = System.Drawing.SystemColors.Control
Me.Label1.Font = New System.Drawing.Font("Forte", 48.0!, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label1.Location = New System.Drawing.Point(48, 56)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(169, 70)
Me.Label1.TabIndex = 0
Me.Label1.Text = "Hole"
Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.BackColor = System.Drawing.Color.Red
Me.ClientSize = New System.Drawing.Size(274, 187)
Me.Controls.Add(Me.Label1)
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents Label1 As System.Windows.Forms.Label
End Class</source>

==Resize irregular window==

<source lang="vbnet">" Quote from
"Windows Forms Programming in VB
"by Chris Sells (Author), Justin Gehtland (Author)
"Publisher: Addison-Wesley Professional; 1st edition (October 24, 2003)
"Language: English
"ISBN-10: 0321125193
"ISBN-13: 978-0321125194
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TransparentFormDemo
public Shared Sub Main
Application.Run(New TransparentForm)
End Sub
End class
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
"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()
"
"TransparentForm
"
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
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
MyBase.WndProc(m)
Dim WM_NCHITTEST As Integer = &H84
If m.Msg <> WM_NCHITTEST Then Exit Sub
Dim HTCLIENT As Integer = 1
Dim HTCAPTION As Integer = 2
If m.Result.ToInt32() = HTCLIENT Then m.Result = New IntPtr(HTCAPTION)
Dim HTLEFT As Integer = 10
Dim HTRIGHT As Integer = 11
Dim HTTOP As Integer = 12
Dim HTTOPLEFT As Integer = 13
Dim HTTOPRIGHT As Integer = 14
Dim HTBOTTOM As Integer = 15
Dim HTBOTTOMLEFT As Integer = 16
Dim HTBOTTOMRIGHT As Integer = 17
Dim clientLocation As Point = Me.PointToClient(New Point(m.LParam.ToInt32))
Dim x As Integer = clientLocation.X
Dim y As Integer = clientLocation.Y
If x = 0 And y = 0 Then
m.Result = New IntPtr(HTCAPTION)
Exit Sub
ElseIf x = 0 And y >= 0 Then
m.Result = New IntPtr(HTRIGHT)
Exit Sub
ElseIf x = 0 Then
m.Result = New IntPtr(HTLEFT)
Exit Sub
ElseIf y = 0 And x >= 0 Then
m.Result = New IntPtr(HTTOP)
Exit Sub
ElseIf y = 0 Then
m.Result = New IntPtr(HTBOTTOM)
Exit Sub
End If
Dim slopeAbs As Double = Math.Abs(CDbl(y) / CDbl(x))
If x > 0 And y > 0 Then
" Q1
If slopeAbs > 2 Then
m.Result = New IntPtr(HTTOP)
ElseIf slopeAbs < 0.5 Then
m.Result = New IntPtr(HTRIGHT)
Else
m.Result = New IntPtr(HTTOPRIGHT)
End If
ElseIf x > 0 And y < 0 Then
" Q2
If slopeAbs > 2 Then
m.Result = New IntPtr(HTBOTTOM)
ElseIf slopeAbs < 0.5 Then
m.Result = New IntPtr(HTRIGHT)
Else
m.Result = New IntPtr(HTBOTTOMRIGHT)
End If
ElseIf x < 0 And y < 0 Then
" Q3
If slopeAbs > 2 Then
m.Result = New IntPtr(HTBOTTOM)
ElseIf slopeAbs < 0.5 Then
m.Result = New IntPtr(HTLEFT)
Else
m.Result = New IntPtr(HTBOTTOMLEFT)
End If
Else
" Q4
If slopeAbs > 2 Then
m.Result = New IntPtr(HTTOP)
ElseIf slopeAbs < 0.5 Then
m.Result = New IntPtr(HTLEFT)
Else
m.Result = New IntPtr(HTTOPLEFT)
End If
End If
End Sub
End Class</source>

← Предыдущая	Версия 16:40, 26 мая 2010
(нет различий)

VB.Net Tutorial/GUI/Irregular Window - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия