Stop Method (original) (raw)
Summary
Cleans up all data variables and buffers allocated by the Start method.
Example
using Leadtools;
using Leadtools.Codecs;
public void RasterBufferResizeExample()
{
string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_resized.bmp");
using (RasterCodecs codecs = new RasterCodecs())
{
codecs.ThrowExceptionsOnInvalidImages = true;
// Load the source image
using (RasterImage srcImage = codecs.Load(srcFileName))
{
int destWidth = srcImage.Width / 2;
int destHeight = srcImage.Height / 2;
// Create the destination image
using (RasterImage destImage = new RasterImage(
RasterMemoryFlags.Conventional,
destWidth,
destHeight,
srcImage.BitsPerPixel,
srcImage.Order,
srcImage.ViewPerspective,
srcImage.GetPalette(),
IntPtr.Zero,
0))
{
// allocate buffer for one scanline from source image
byte[] scanLine = new byte[srcImage.BytesPerLine];
// resize it
RasterBufferResize bufferResize = new RasterBufferResize();
// Initialize the resize process.
bufferResize.Start(srcImage.Width, srcImage.Height, destImage.Width, destImage.Height);
srcImage.Access();
destImage.Access();
// Current destination row number
int destRow = 0;
for (int i = 0; i < srcImage.Height; i++)
{
// Get a scanline from the source image and resize it
srcImage.GetRow(i, scanLine, 0, srcImage.BytesPerLine);
bufferResize.ResizeBuffer(scanLine, 0, i, srcImage.BitsPerPixel);
// Output as many or as few rows as ResizeBuffer supplies
for (int j = 0; j < bufferResize.CopyRepetitions; j++)
{
destImage.SetRow(destRow, scanLine, 0, bufferResize.LineWidth * 3);
destRow++;
}
}
destImage.Release();
srcImage.Release();
bufferResize.Stop();
// Save the destination image
codecs.Save(destImage, destFileName, RasterImageFormat.Bmp, 24);
}
}
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Leadtools Assembly