* added handy BBitmap::Flags() method

* added NOTE to BBitmap::LockBits(), has anybody some insight into this?
  Otherwise we need to write a test app to discover its secrets... :-)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17120 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/interface/Bitmap.h

@@ -59,6 +59,7 @@ class BBitmap : public BArchivable {
 		int32 BytesPerRow() const;
 		color_space ColorSpace() const;
 		BRect Bounds() const;
+		uint32 Flags() const;
 
 		void SetBits(const void *data, int32 length, int32 offset,
 					 color_space colorSpace);