/// <summary>
/// Test for advanced decode function
/// </summary>
private void ButtonCropFlip_Click(object sender, EventArgs e)
{
try
{
using (OpenFileDialog openFileDialog = new System.Windows.Forms.OpenFileDialog())
{
openFileDialog.Filter = "WebP files (*.webp)|*.webp";
openFileDialog.FileName = "";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
string pathFileName = openFileDialog.FileName;
byte[] rawWebP = File.ReadAllBytes(pathFileName);
WebPDecoderOptions decoderOptions = new WebPDecoderOptions();
decoderOptions.use_cropping = 1;
decoderOptions.crop_top = 100; //Top beging of crop area
decoderOptions.crop_left = 100; //Left beging of crop area
decoderOptions.crop_height = 400; //Height of crop area
decoderOptions.crop_width = 400; //Width of crop area
decoderOptions.use_threads = 1; //Use multhreading
decoderOptions.flip = 1; //Flip the image
using (WebP webp = new WebP())
this.pictureBox.Image = webp.Decode(rawWebP, decoderOptions);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + "\r\nIn WebPExample.buttonCrop_Click", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public override FileTypeMan.OpenResult Open(string path)
{
try
{
byte[] rawWebP = File.ReadAllBytes(path);
using (WebP webp = new WebP())
{
WebPDecoderOptions decoderOptions = new WebPDecoderOptions();
decoderOptions.use_threads = 1;
decoderOptions.alpha_dithering_strength = 100;
return(new FileTypeMan.OpenResult
{
Bmp = webp.Decode(rawWebP, decoderOptions)
});
}
}
catch
{
return(new FileTypeMan.OpenResult
{
ErrorMessage = TypeName + " - " + LangMan.Get("unable-open-file") + ": " + Path.GetFileName(path)
});
}
}
