Visual Basic (Declaration) | |
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Public Function GetData() As Byte() |
Visual Basic (Usage) | ![]() |
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Dim instance As RasterRegion Dim value() As Byte value = instance.GetData() |
C# | |
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public byte[] GetData() |
C++/CLI | |
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public: array<byte>^ GetData(); |
Return Value
An array of System.Byte that represents the information that describes this RasterRegion.
This example will loads an image, adds a region to it, gets the RasterRegion object from the image and set it to disk. It will then re-load this data from disk and set it back to another image.
Visual Basic | ![]() |
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Public Sub RasterRegionDataExample() Dim codecs As New RasterCodecs() Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp") Dim destFileName1 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion1.bmp") Dim regionFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_Region.bin") Dim destFileName2 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion2.bmp") Dim region As RasterRegion = Nothing ' Load the source image Using image As RasterImage = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1) ' Add an elliptical region to it image.AddEllipseToRegion(Nothing, New LeadRect(0, 0, image.ImageWidth, image.ImageHeight), RasterRegionCombineMode.Set) ' Fill the image with a color and save it to disk to show the region Dim cmd As New FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow)) cmd.Run(image) codecs.Save(image, destFileName1, RasterImageFormat.Bmp, 24) ' Get the region region = image.GetRegion(Nothing) End Using ' Save this region to disk Dim data() As Byte = region.GetData() File.WriteAllBytes(regionFileName, data) ' Dispose the region region.Dispose() ' Now, reload the image and region from disk, set the region into the image directly ' from the data we save, re-fill and save again Using image As RasterImage = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1) ' Create a region from the data we saved on disk data = File.ReadAllBytes(regionFileName) region = New RasterRegion(data) ' Set this region into the image image.SetRegion(Nothing, region, RasterRegionCombineMode.Set) region.Dispose() ' Fill the image with a color and save it to disk to show the region Dim cmd As New FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow)) cmd.Run(image) codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 24) End Using codecs.Dispose() End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class |
C# | ![]() |
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public void RasterRegionDataExample() { RasterCodecs codecs = new RasterCodecs(); string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion1.bmp"); string regionFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_Region.bin"); string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WithRegion2.bmp"); RasterRegion region = null; // Load the source image using(RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) { // Add an elliptical region to it image.AddEllipseToRegion(null, new LeadRect(0, 0, image.ImageWidth, image.ImageHeight), RasterRegionCombineMode.Set); // Fill the image with a color and save it to disk to show the region FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow)); cmd.Run(image); codecs.Save(image, destFileName1, RasterImageFormat.Bmp, 24); // Get the region region = image.GetRegion(null); } // Save this region to disk byte[] data = region.GetData(); File.WriteAllBytes(regionFileName, data); // Dispose the region region.Dispose(); // Now, reload the image and region from disk, set the region into the image directly // from the data we save, re-fill and save again using(RasterImage image = codecs.Load(srcFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1)) { // Create a region from the data we saved on disk data = File.ReadAllBytes(regionFileName); using(region = new RasterRegion(data)) { // Set this region into the image image.SetRegion(null, region, RasterRegionCombineMode.Set); } // Fill the image with a color and save it to disk to show the region FillCommand cmd = new FillCommand(RasterColor.FromKnownColor(RasterKnownColor.Yellow)); cmd.Run(image); codecs.Save(image, destFileName2, RasterImageFormat.Bmp, 24); } codecs.Dispose(); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; } |
SilverlightCSharp | ![]() |
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SilverlightVB | ![]() |
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You can use the GetData and SetData methods to save and load the content of a region to disk or memory.
If this RasterRegion is empty, then this method will return an array of 0 items.
Target Platforms: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only), Windows Phone 7