/*
  File:	appface.h
  Purpose:	Use this class to load AppFace API easyly.
  Version  0.2
 
  Compatible with:
       Microsoft Windows 9x, NT, 2000, XP 
       Microsoft Visual C++ 5-7
  uses no MFC
 
 *==========================================================
 * Cpyright MatinSoft Inc. 2004.11.22
 *
 * COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
 * THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
 * CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
 * THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
 * SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
 * PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.
 *
 * Use at your own risk!
 * ==========================================================
  
How to use it ?
  1.Include this file in your project,and copy "AppFace.dll" to the project EXE file output folder.
  2.Declare a global variable in your project:                              CAppFace g_af ;
  3.Load appface before the first window created in the process by call:    g_af.Start(char* UiResourceFile);
  4.Before exit the process to release resource call this :                 g_af.Remove();

Others:
  1.Load URF(UI Resource File) from disk file:   g_af.Start(_T("c:\\Yourpath\\yoururf.urf")) ;
  2.Load URF(UI Resource File) from Resource :   g_af.Start(_T("IDR_URFNAME_YOURDEFINED"),GTP_LOAD_RESOURCE,(DWORD)::GetModuleHandle(NULL),_T("RESOURCETYPE")) ;
  3.Load URF(UI Resource File) from Memory   :   g_af.Start((char*)pBuf,GTP_LOAD_MEMORY,nBufLen)
  4.Change the application UI                :   g_af.Start(_T("c:\\Yourpath\\yourotherurf.urf")) ;               
  5.Return to windows default UI             :   g_af.Start() ;

Bug reported:   
 
  appface@matinsoft.com

  http://www.matinsoft.com
  http://www.appface.com

------------------------------------------------------------
這個類幫助您更容易的使用 AppFace 界面開發包
使用方法:
  1. 將這個文件添加進您的工程,將"AppFace.dll"拷貝到EXE文件的輸出目錄
  2. 在您的工程中聲明一個全局變量  CAppFace g_af ;
  3. 在創建第一個窗口前調用        g_af.Start(char * UiResourceFile)    ;
  4. 在程序退出前調用              g_af.Remove()    ;

其它:
  1.從磁盤文件加載 URF(UI Resource File)  :   g_af.Start(_T("c:\\Yourpath\\yoururf.urf")) ;
  2.從資源加載 URF(UI Resource File)      :   g_af.Start(_T("IDR_URFNAME_YOURDEFINED"),GTP_LOAD_RESOURCE,(DWORD)::GetModuleHandle(NULL),_T("RESOURCETYPE")) ;
  3.從內存加載 URF(UI Resource File)      :   g_af.Start((char*)pBuf,GTP_LOAD_MEMORY,nBufLen)
  4.更換UI                                :   g_af.Start(_T("c:\\Yourpath\\yourotherurf.urf")) ;               
  5.恢復Windows 默認界面                  :   g_af.Start() ;
  
Bug reported:
  support_cn@matinsoft.com

  http://www.matinsoft.com
  http://www.appface.com

-------------------------------------------------------------
History:

AppFace.h 0.2    2004.11.25
   Modified "Start" member fucntion to load urf file from resource or memory.
   Modified the description for class CAppFace .
   Supported UNICDOE
   Added a help function,  void T2C(IN LPCTSTR src,OUT char* dst,IN int dstlen) 
        which used to convert a TCHAR string to char string
  
AppFace.h 0.1    2004.09.25
   Can work. 
*/

#ifndef __APPFACE_H__
#define __APPFACE_H__


#define GTP_LOAD_FILE     1
#define GTP_LOAD_MEMORY   2
#define GTP_LOAD_RESOURCE 3

class CAppFace
{
public:

typedef bool (*APPFACE_START)(char*,char*,int,DWORD,char*);
typedef void (*APPFACE_REMOVE)();

	
	CAppFace(LPCTSTR DllPath = _T("AppFace.dll"))
	{
		pfnStart    = NULL ;
		pfnRemove   = NULL ;
		m_bValid    = FALSE; 
		m_hDll      = NULL ;
		Init(DllPath) ;
	};
	~CAppFace(){Release(); };

	bool Init(LPCTSTR DllPath)
	{
		if(m_hDll && m_bValid)	
			return true;
		m_hDll = ::LoadLibrary(DllPath);
		if(m_hDll == NULL)
			return false ;
		
		pfnStart = (APPFACE_START) GetProcAddress(m_hDll, "SkinStart"); 
		if(!pfnStart)	    return false; 
		pfnRemove= (APPFACE_REMOVE)GetProcAddress(m_hDll, "SkinRemove"); 
		if(!pfnRemove)	    return false; 

		m_bValid = true ;
		return true ;
	};

	bool IsValid(){return m_bValid;};

	//----------------------------
	//We'll call these functions.
	bool Start(void* SkinFile=NULL,  //Source buffer
				int Type = GTP_LOAD_FILE, //Loading type
				DWORD hInst= NULL,   //The HINSTANCE for the loaded module or the size of the memory block
				LPCTSTR szResType =NULL,  //Resource type ,only used when Type is GTP_LOAD_RESOURCE
				LPCTSTR szCheckSum= NULL  //Checksum string,not used for the free version
				)
	{
		if(pfnStart)
		{
			if(!SkinFile)
			{
				return pfnStart(NULL,NULL,NULL,NULL,NULL);
			}
			else
			{
				char  checksum[256] ;
				if(Type == GTP_LOAD_MEMORY)
				{
					T2C(szCheckSum,checksum,256) ;
					return pfnStart((char*)SkinFile,checksum,Type,hInst,NULL);
				}
				else
				{
					char  skinfile[256] ;
					char  type[256] ;
					T2C((LPCTSTR)SkinFile,skinfile,256) ;
					T2C(szResType,type,256) ;
					return pfnStart(skinfile,checksum,Type,hInst,type);
				}
			}
		}
		return false;
	};
	void Remove() { if(pfnRemove) pfnRemove() ;};
	//----------------------------

private:
	bool m_bValid  ;  
	HMODULE m_hDll ;

	APPFACE_START       pfnStart       ;
	APPFACE_REMOVE      pfnRemove      ;

	//Convert a TCHAR string to char string
	void T2C(IN LPCTSTR src,OUT char* dst,IN int dstlen)
	{
		memset(dst,0,dstlen);
		if(!src || !dst) return ;		
	//----------------------------
#ifdef UNICODE
		BOOL bRes= FALSE ;
		WideCharToMultiByte(CP_ACP,
			0,
			src,
			wcslen(src),
			dst,
			dstlen,
			NULL,
			&bRes);
#else
		strncpy(dst,src,dstlen-1) ;
#endif
	} ;

protected:
	void Release()
	{
		if(m_hDll)
		{
			FreeLibrary(m_hDll);
			m_hDll = NULL        ;
			m_bValid = false ;
			pfnStart = NULL ;
			pfnRemove= NULL ;
		}
	};
};

#endif  //__APPFACE_H__