public static IntPtr ChangeToHBitmap( RasterImage image )
'Declaration Public Overloads Shared Function ChangeToHBitmap( _ ByVal image As RasterImage _ ) As IntPtr
'Usage Dim image As RasterImage Dim value As IntPtr value = RasterImageConverter.ChangeToHBitmap(image)
public: static IntPtr ChangeToHBitmap( RasterImage^ image )
This method results in only one copy of the image, and it invalidates this Leadtools.RasterImage object. You must call RasterImage.Dispose after calling this method.
For more information on DDBs and DIBs, refer to Using DIBs, DDBs, and the Clipboard.
For more information refer to RasterImage and GDI/GDI+.
Imports Leadtools Imports Leadtools.Codecs Imports Leadtools.Drawing Imports Leadtools.ImageProcessing Imports Leadtools.ImageProcessing.Color Public Sub ChangeToHBitmapExample() Dim codecs As New RasterCodecs() Dim hbitmap As IntPtr ' Load an image Using image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"), 24, CodecsLoadByteOrder.BgrOrGray, 1, 1) ' Change to DDB hbitmap = RasterImageConverter.ChangeToHBitmap(image) ' Dispose the image since it is unusable now End Using ' Change the DDB to a new LEAD RasterImage Using image As RasterImage = RasterImageConverter.ChangeFromHBitmap(hbitmap, IntPtr.Zero) ' Save this image back to disk codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Image1_ChangeToHBitmap.bmp"), RasterImageFormat.Bmp, 24) End Using DeleteObject(hbitmap) ' Clean up codecs.Dispose() End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class
using Leadtools; using Leadtools.Codecs; using Leadtools.Drawing; using Leadtools.ImageProcessing; using Leadtools.ImageProcessing.Color; public void ChangeToHBitmapExample() { RasterCodecs codecs = new RasterCodecs(); IntPtr hbitmap; // Load an image using(RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"), 24, CodecsLoadByteOrder.BgrOrGray, 1, 1)) { // Change to DDB hbitmap = RasterImageConverter.ChangeToHBitmap(image); // Dispose the image since it is unusable now } // Change the DDB to a new LEAD RasterImage using(RasterImage image = RasterImageConverter.ChangeFromHBitmap(hbitmap, IntPtr.Zero)) { // Save this image back to disk codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Image1_ChangeToHBitmap.bmp"), RasterImageFormat.Bmp, 24); } DeleteObject(hbitmap); // Clean up codecs.Dispose(); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; }