public void Disposing_Cloned_Bitmap_DoesNot_Harm_Cloned_Bitmap()
{
Bitmap bitmap1;
Bitmap bitmap2;
using (var image = new WinFormsImage(100, 100))
{
image.Render(3, false, false, 0);
// acquire cloned bitmap #1.
bitmap1 = image.AsClonedBitmap();
// acquire cloned bitmap #2.
bitmap2 = image.AsClonedBitmap();
}
// cloned bitmap #1 should be in good shape.
Assert.Equal(100, bitmap1.Width);
// cloned bitmap #2 should be in good shape.
Assert.Equal(100, bitmap2.Width);
// dispose cloned bitmap #1
bitmap1.Dispose();
// cloned bitmap #2 should be still in good shape.
Assert.Equal(100, bitmap2.Width);
}
public void Disposing_Cloned_Bitmap_DoesNot_Harm_WinFormsImage()
{
Bitmap bitmap;
using (var image = new WinFormsImage(100, 100))
{
image.Render(3, false, false, 0);
// acquire cloned bitmap #1, dispose immediately.
using (image.AsClonedBitmap()) { }
// acquire cloned bitmap #2. must not fail.
bitmap = image.AsClonedBitmap();
}
// bitmap #2 should be in good shape.
Assert.Equal(100, bitmap.Width);
}
public void Disposing_WinFormsImage_DoesNot_Harm_Cloned_Bitmap()
{
Bitmap bitmap;
using (var image = new WinFormsImage(100, 100))
{
// render and acquire cloned bitmap
image.Render(3, false, false, 0);
bitmap = image.AsClonedBitmap();
}
// cloned bitmap should be in good shape after disposing WinFormsImage.
Assert.Equal(100, bitmap.Width);
}