本文整理汇总了VB.NET中System.Drawing.Graphics.EnumerateMetafile方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Graphics.EnumerateMetafile方法的具体用法？VB.NET Graphics.EnumerateMetafile怎么用？VB.NET Graphics.EnumerateMetafile使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Drawing.Graphics的用法示例。
在下文中一共展示了Graphics.EnumerateMetafile方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Form1
' 导入命名空间
Imports System.Drawing
Imports System.Drawing.Imaging
Imports System.Windows.Forms
' for Marshal.Copy
Imports System.Runtime.InteropServices
Public Class Form1
Inherits Form
Private metafile1 As Metafile
Private metafileDelegate As Graphics.EnumerateMetafileProc
Private destPoint As Point
Public Sub New()
metafile1 = New Metafile("C:\test.wmf")
metafileDelegate = New Graphics.EnumerateMetafileProc(AddressOf MetafileCallback)
destPoint = New Point(20, 10)
End Sub
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
e.Graphics.EnumerateMetafile(metafile1, destPoint, metafileDelegate)
End Sub
Private Function MetafileCallback(ByVal recordType As _
EmfPlusRecordType, ByVal flags As Integer, ByVal dataSize As Integer, _
ByVal data As IntPtr, ByVal callbackData As PlayRecordCallback) As Boolean
Dim dataArray As Byte() = Nothing
If data <> IntPtr.Zero Then
' Copy the unmanaged record to a managed byte buffer
' that can be used by PlayRecord.
dataArray = New Byte(dataSize) {}
Marshal.Copy(data, dataArray, 0, dataSize)
End If
metafile1.PlayRecord(recordType, flags, dataSize, dataArray)
Return True
End Function
Shared Sub Main()
Application.Run(New Form1())
End Sub
End Class