uids.h

symbian 开SDK例子！！3RD 是学习的不错实例啊

// Uids.h
//
// Copyright (c) 1999-2005 Symbian Software Ltd.  All rights reserved.
//

#ifndef __PNGUIDS_H__
#define __PNGUIDS_H__

// DLL and implementation UIDs
#define KExPNGCodecDllUidValue				0xE8000063
#define KExPNGDecoderImplementationUidValue	0x101F4123
#define KExPNGEncoderImplementationUidValue	0x101F4124

#endif