本文整理汇总了VB.NET中System.Drawing.Imaging.Encoder.Transformation字段的典型用法代码示例。如果您正苦于以下问题：VB.NET Encoder.Transformation字段的具体用法？VB.NET Encoder.Transformation怎么用？VB.NET Encoder.Transformation使用的例子？那么恭喜您, 这里精选的字段代码示例或许可以为您提供帮助。
在下文中一共展示了Encoder.Transformation字段的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: Example_RotateJPEG
' 导入命名空间
Imports System.Drawing
Imports System.Drawing.Imaging
Class Example_RotateJPEG
Public Shared Sub Main()
Dim myBitmap As Bitmap
Dim myImageCodecInfo As ImageCodecInfo
Dim myEncoder As Encoder
Dim myEncoderParameter As EncoderParameter
Dim myEncoderParameters As EncoderParameters
' Create a Bitmap object based on a JPEG file.
myBitmap = New Bitmap("Shapes.jpg")
' Get an ImageCodecInfo object that represents the JPEG codec.
myImageCodecInfo = GetEncoderInfo("image/jpeg")
' Create an Encoder object based on the GUID
' for the Transformation parameter category.
myEncoder = Encoder.Transformation
' Create an EncoderParameters object.
' An EncoderParameters object has an array of EncoderParameter
' objects. In this case, there is only one
' EncoderParameter object in the array.
myEncoderParameters = New EncoderParameters(1)
' Rotate the image 90 degrees, and save it as a separate JPEG file.
myEncoderParameter = New EncoderParameter(myEncoder, Fix(EncoderValue.TransformRotate90))
myEncoderParameters.Param(0) = myEncoderParameter
myBitmap.Save("ShapesR90.jpg", myImageCodecInfo, myEncoderParameters)
End Sub
Private Shared Function GetEncoderInfo(ByVal mimeType As String) As ImageCodecInfo
Dim j As Integer
Dim encoders() As ImageCodecInfo
encoders = ImageCodecInfo.GetImageEncoders()
j = 0
While j < encoders.Length
If encoders(j).MimeType = mimeType Then
Return encoders(j)
End If
j += 1
End While
Return Nothing
End Function 'GetEncoderInfo
End Class