в 16:40, 26 мая 2010

2010-05-26T16:40:06Z

Admin: 1 версия

2010-05-26T12:42:05Z

1 версия

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==Create wmf file and draw to it==

<source lang="vbnet">
Imports System
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.ruponentModel
Imports System.Drawing.Imaging
Imports System.Drawing
Public Class MainClass
Shared Sub Main()
Const WID As Integer = 200
Dim file_name As String = "test.wmf"

Dim gr As Graphics
gr = Graphics.FromImage(new Bitmap(100,100))
" Make a Graphics object so we can use its hDC as a reference.
Dim hdc As IntPtr = gr.GetHdc
" Make the Metafile, using the reference hDC.
Dim bounds As New RectangleF(0, 0, WID, WID)
Dim mf As New Metafile(file_name, hdc, _
bounds, MetafileFrameUnit.Pixel)
gr.ReleaseHdc(hdc)
" Make a Graphics object and draw.
gr = 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)
" Close the metafile and free resources.
gr.Dispose()
mf.Dispose()

End Sub
End Class

</source>

==Read from wmf file and display it on a form==

<source lang="vbnet">
Imports System
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.ruponentModel
Imports System.Drawing.Imaging
Imports System.Drawing
Public Class MainClass
Shared Sub Main()
Dim form1 As Form1 = new Form1()
Application.Run(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"

" Reload the metafile and copy it into a Bitmap.
Dim mf As Metafile = New Metafile(file_name)
Dim bm As New Bitmap(WID, WID)
Dim gr As Graphics = 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()
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>

==Save an Image to Wmf file format==

<source lang="vbnet">
Imports System
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.ruponentModel
Imports System.Drawing.Imaging
Imports System.Drawing
Public Class MainClass
Shared Sub Main()
Dim bm As New Bitmap(256, 256)
" Draw on it.
Dim gr As Graphics = Graphics.FromImage(bm)
gr.Clear(Color.White)
gr.DrawEllipse(Pens.Red, 0, 0, bm.Width - 1, bm.Height - 1)
gr.DrawLine(Pens.Green, 0, 0, bm.Width - 1, bm.Height - 1)
gr.DrawLine(Pens.Blue, bm.Width - 1, 0, 0, bm.Height - 1)
" Save the result as a JPEG file.
bm.Save("test.wmf", ImageFormat.Wmf)
End Sub
End Class

</source>

==Shrink a wmf Image==

<source lang="vbnet">
Imports System
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.ruponentModel
Imports System.Drawing.Imaging
Imports System.Drawing
Public Class MainClass
Shared Sub Main()
Dim form1 As Form1 = new Form1()
Application.Run(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"

" Reload the metafile and copy it into a Bitmap.
Dim mf As Metafile = New Metafile(file_name)
Dim bm As New Bitmap(WID, WID)
Dim gr As Graphics = 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.ScaleTransform(0.5, 0.5)
gr.DrawImage(mf, bounds, source_bounds, GraphicsUnit.Pixel)

picOrig.SizeMode = PictureBoxSizeMode.AutoSize
picOrig.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>

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VB.Net/2D/Wmf - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия