в 16:40, 26 мая 2010

2010-05-26T16:40:30Z

Admin: 1 версия

2010-05-26T12:54:43Z

1 версия

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==Create a Metafile==

<source lang="vbnet">Imports System.Drawing.Imaging
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class MetafileHeaderInfo
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim g As Graphics = Me.CreateGraphics()
Dim hdc As IntPtr = g.GetHdc()
Dim rect As New Rectangle(20, 20, 200, 100)
Dim curMetafile As New Metafile(hdc, EmfType.EmfPlusDual, "yourfile.emf")
Dim g1 As Graphics = Graphics.FromImage(curMetafile) "
g1.SmoothingMode = SmoothingMode.HighQuality
g1.FillRectangle(Brushes.Red, rect)
rect.Y += 110
g1.DrawEllipse(New Pen(Brushes.Green, 3), rect)
g1.DrawLine(Pens.Blue, New Point(20, 20), New Point(400, 200))
"Release objects
g.ReleaseHdc(hdc)
g1.Dispose()
g.Dispose()
End Sub
Public Sub New()

MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class</source>

==Draw a meta wmf file==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Imaging
Imports System.Windows.Forms
public class MetafileDraw
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim g As Graphics = Me.CreateGraphics()
g.Clear(Me.BackColor)
Dim curMetafile As New Metafile("yourfile.wmf")
g.DrawImage(curMetafile, 0, 0)
g.Dispose()
End Sub
Public Sub New()

MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class</source>

==Draw on a wmf file==

<source lang="vbnet">Imports System.Drawing.Imaging
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class DrawOnWMFFile
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim curMetafile As Metafile = Nothing
Dim g As Graphics = Me.CreateGraphics()
Dim hdc As IntPtr = g.GetHdc()
Dim rect As New Rectangle(0, 0, 200, 200)
curMetafile = New Metafile("newFile.wmf", hdc)

Dim g1 As Graphics = Graphics.FromImage(curMetafile)
g1.SmoothingMode = SmoothingMode.HighQuality
g1.FillRectangle(Brushes.Green, rect)
rect.Y += 110
Dim lgBrush As New LinearGradientBrush(rect, Color.Red, Color.Blue, 45.0F)
g1.FillEllipse(lgBrush, rect)
rect.Y += 110
g1.DrawString("MetaFile Sample", New Font("Verdana", 20), lgBrush, 200, 200, StringFormat.GenericTypographic)
g.ReleaseHdc(hdc)
g1.Dispose()
g.Dispose()
End Sub
Public Sub New()

MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class</source>

==Make Metafile (WMF)==

<source lang="vbnet">Imports System.Drawing.Imaging
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Math
public class WMFFileCreate
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
Const WID As Integer = 200
Dim file_name As String = "test.wmf"
Dim me_gr As Graphics = Me.CreateGraphics
Dim me_hdc As IntPtr = me_gr.GetHdc
Dim bounds As New RectangleF(0, 0, WID, WID)
Dim mf As New Metafile(file_name, me_hdc, bounds, MetafileFrameUnit.Pixel)
me_gr.ReleaseHdc(me_hdc)
Dim gr As Graphics = Graphics.FromImage(mf)
gr.PageUnit = GraphicsUnit.Pixel
gr.Clear(Color.White)
gr.DrawEllipse(Pens.Red, bounds)
gr.DrawLine(Pens.Blue, 0, 0, WID, WID)
gr.DrawLine(Pens.Blue, WID, 0, 0, WID)
gr.Dispose()
mf.Dispose()
mf = New Metafile(file_name)
Dim bm As New Bitmap(WID, WID)
gr = Graphics.FromImage(bm)
Dim dest_bounds As New RectangleF(0, 0, WID, WID)
Dim source_bounds As New RectangleF(0, 0, WID + 1, WID + 1)
gr.DrawImage(mf, bounds, source_bounds, GraphicsUnit.Pixel)
picOrig.SizeMode = PictureBoxSizeMode.AutoSize
picOrig.Image = bm
gr.Dispose()
mf.Dispose()
mf = New Metafile(file_name)
picSmall.SetBounds(picOrig.Right + 10, picOrig.Top,picOrig.Width \ 2, picOrig.Height \ 2)
bm = New Bitmap(picSmall.ClientSize.Width,picSmall.ClientSize.Height)
gr = Graphics.FromImage(bm)
gr.ScaleTransform(0.5, 0.5)
gr.DrawImage(mf, bounds, source_bounds, GraphicsUnit.Pixel)
picSmall.Image = bm
gr.Dispose()
mf.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 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.picSmall = New System.Windows.Forms.PictureBox
Me.picOrig = New System.Windows.Forms.PictureBox
CType(Me.picSmall, System.ruponentModel.ISupportInitialize).BeginInit()
CType(Me.picOrig, System.ruponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
"
"picSmall
"
Me.picSmall.Location = New System.Drawing.Point(64, 8)
Me.picSmall.Name = "picSmall"
Me.picSmall.Size = New System.Drawing.Size(32, 24)
Me.picSmall.TabIndex = 3
Me.picSmall.TabStop = False
"
"picOrig
"
Me.picOrig.Location = New System.Drawing.Point(8, 8)
Me.picOrig.Name = "picOrig"
Me.picOrig.Size = New System.Drawing.Size(48, 56)
Me.picOrig.TabIndex = 2
Me.picOrig.TabStop = False
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(326, 215)
Me.Controls.Add(Me.picSmall)
Me.Controls.Add(Me.picOrig)
Me.Name = "Form1"
Me.Text = "MakeMetafile"
CType(Me.picSmall, System.ruponentModel.ISupportInitialize).EndInit()
CType(Me.picOrig, System.ruponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
End Sub
Friend WithEvents picSmall As System.Windows.Forms.PictureBox
Friend WithEvents picOrig As System.Windows.Forms.PictureBox
End Class</source>

==Set EnumerateMetafileProc property==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Imaging
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class EnumerateMetafileProc
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim g As Graphics = Me.CreateGraphics()
g.Clear(Me.BackColor)
Dim curMetafile As New Metafile("mtfile.wmf")
Dim enumMetaCB1 As New Graphics.EnumerateMetafileProc(AddressOf EnumMetaCB)
g.EnumerateMetafile(curMetafile, New Point(0, 0), EnumMetaCB1)
curMetafile.Dispose()
g.Dispose()
End Sub
Private Function EnumMetaCB(ByVal recordType As EmfPlusRecordType, ByVal flags As Integer, ByVal dataSize As Integer, ByVal data As IntPtr, ByVal callbackData As PlayRecordCallback) As Boolean "
Dim str As String = ""
" Play only EmfPlusRecordType.FillEllipse records.
If recordType = EmfPlusRecordType.FillEllipse Or recordType = EmfPlusRecordType.FillRects Or recordType = EmfPlusRecordType.DrawEllipse Or recordType = EmfPlusRecordType.DrawRects Then
str = "Record type:" + recordType.ToString() + ", Flags:" + flags.ToString() + ", DataSize:" + dataSize.ToString() + ", Data:" + data.ToString()
MessageBox.Show(str)
End If
Return True
End Function "EnumMetaCB
Public Sub New()

MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class</source>

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VB.Net Tutorial/2D Graphics/MetaFile WMF - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия