/*
* Predefined bitmap data formats
*/
/// <include file='doc\Bitmap.uex' path='docs/doc[@for="Bitmap.Bitmap"]/*' />
/// <devdoc>
/// Initializes a new instance of the
/// <see cref='System.Drawing.Bitmap'/>
/// class from the specified file.
/// </devdoc>
/**
* Create a new bitmap object from URL
*/
public Bitmap(String filename)
{
IntSecurity.DemandReadFileIO(filename);
//GDI+ will read this file multiple times. Get the fully qualified path
//so if our app changes default directory we won't get an error
//
filename = Path.GetFullPath(filename);
IntPtr bitmap = IntPtr.Zero;
int status = SafeNativeMethods.GdipCreateBitmapFromFile(filename, out bitmap);
if (status != SafeNativeMethods.Ok)
{
throw SafeNativeMethods.StatusException(status);
}
status = SafeNativeMethods.GdipImageForceValidation(new HandleRef(null, bitmap));
if (status != SafeNativeMethods.Ok)
{
SafeNativeMethods.GdipDisposeImage(new HandleRef(null, bitmap));
throw SafeNativeMethods.StatusException(status);
}
SetNativeImage(bitmap);
EnsureSave(this, filename, null);
}