public Bitmap(string filename, bool useIcm)
{
// GDI+ will read this file multiple times. Get the fully qualified path
// so if the app's default directory changes we won't get an error.
filename = Path.GetFullPath(filename);
IntPtr bitmap = IntPtr.Zero;
int status;
if (useIcm)
{
status = Gdip.GdipCreateBitmapFromFileICM(filename, out bitmap);
}
else
{
status = Gdip.GdipCreateBitmapFromFile(filename, out bitmap);
}
Gdip.CheckStatus(status);
ValidateImage(bitmap);
SetNativeImage(bitmap);
EnsureSave(this, filename, null);
}