public static extern bool ulBitmapWritePNG([NativeTypeName("ULBitmap")] C_Bitmap *bitmap, [NativeTypeName("const char *")] sbyte *path);
public static extern bool ulBitmapIsEmpty([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern void ulBitmapErase([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern void ulBitmapUnlockPixels([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern void *ulBitmapRawPixels([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern UIntPtr ulBitmapGetSize([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern bool ulBitmapOwnsPixels([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern uint ulBitmapGetRowBytes([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern ULBitmapFormat ulBitmapGetFormat([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern uint ulBitmapGetHeight([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern void ulDestroyBitmap([NativeTypeName("ULBitmap")] C_Bitmap *bitmap);
public static extern C_Bitmap *ulCreateBitmapFromCopy([NativeTypeName("ULBitmap")] C_Bitmap *existing_bitmap);