MFC图片预览与缩放

实现了图片预览和缩放功能

// ShowPicture.cpp : Defines the initialization routines for the DLL.
//

#include “stdafx.h“
#include 

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif


static AFX_EXTENSION_MODULE ShowPictureDLL = { NULL NULL };

extern “C“ int APIENTRY
DllMain（HINSTANCE hInstance DWORD dwReason LPVOID lpReserved）
{
	// Remove this if you use lpReserved
	UNREFERENCED_PARAMETER（lpReserved）;

	if （dwReason == DLL_PROCESS_ATTACH）
	{
		TRACE0（“SHOWPICTURE.DLL Initializing!\n“）;
		
		// Extension DLL one-time initialization
		if （!AfxInitExtensionModule（ShowPictureDLL hInstance））
			return 0;

		// Insert this DLL into the resource chain
		// NOTE: If this Extension DLL is being implicitly linked to by
		//  an MFC Regular DLL （such as an ActiveX Control）
		//  instead of an MFC application then you will want to
		//  remove this line from DllMain and put it in a separate
		//  function exported from this Extension DLL.  The Regular DLL
		//  that uses this Extension DLL should then explicitly call that
		//  function to initialize this Extension DLL.  Otherwise
		//  the CDynlinkLibrary object will not be attached to the
		//  Regular DLL‘s resource chain and serious problems will
		//  result.

		new CDynlinkLibrary（ShowPictureDLL）;
	}
	else if （dwReason == DLL_PROCESS_DETACH）
	{
		TRACE0（“SHOWPICTURE.DLL Terminating!\n“）;
		// Terminate the library before destructors are called
		AfxTermExtensionModule（ShowPictureDLL）;
	}
	return 1;   // ok
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-01-22 22:18  ShowPicture\
     目录           0  2017-01-22 22:18  ShowPicture\Debug\
     文件      106549  2014-09-19 11:26  ShowPicture\Debug\ShowPicture.dll
     文件        3142  2014-09-19 11:26  ShowPicture\Debug\ShowPicture.exp
     文件      140672  2014-09-19 11:26  ShowPicture\Debug\ShowPicture.ilk
     文件        5920  2014-09-19 11:26  ShowPicture\Debug\ShowPicture.lib
     文件        7301  2014-09-19 11:26  ShowPicture\Debug\ShowPicture.obj
     文件     6610120  2014-09-19 11:26  ShowPicture\Debug\ShowPicture.pch
     文件      246784  2014-09-19 11:26  ShowPicture\Debug\ShowPicture.pdb
     文件         936  2014-09-19 11:26  ShowPicture\Debug\ShowPicture.res
     文件       20544  2014-09-19 11:26  ShowPicture\Debug\ShowPictureDlg.obj
     文件      117622  2014-09-19 11:26  ShowPicture\Debug\StdAfx.obj
     文件      238592  2014-09-19 11:27  ShowPicture\Debug\vc60.idb
     文件      413696  2014-09-19 11:26  ShowPicture\Debug\vc60.pdb
     文件        2533  2014-09-18 17:57  ShowPicture\ReadMe.txt
     目录           0  2017-01-22 22:18  ShowPicture\Release\
     文件       24576  2014-09-19 11:26  ShowPicture\Release\ShowPicture.dll
     文件        3144  2014-09-19 11:26  ShowPicture\Release\ShowPicture.exp
     文件        5920  2014-09-19 11:26  ShowPicture\Release\ShowPicture.lib
     文件        2110  2014-09-19 11:26  ShowPicture\Release\ShowPicture.obj
     文件     6709252  2014-09-19 11:26  ShowPicture\Release\ShowPicture.pch
     文件         936  2014-09-19 11:26  ShowPicture\Release\ShowPicture.res
     文件       18816  2014-09-19 11:26  ShowPicture\Release\ShowPictureDlg.obj
     文件         866  2014-09-19 11:26  ShowPicture\Release\StdAfx.obj
     文件       58368  2014-09-19 11:27  ShowPicture\Release\vc60.idb
     文件       18444  2015-11-02 16:40  ShowPicture\ShowPicture.aps
     文件         555  2015-11-02 16:41  ShowPicture\ShowPicture.clw
     文件        1568  2014-09-18 17:57  ShowPicture\ShowPicture.cpp
     文件         199  2014-09-18 17:57  ShowPicture\ShowPicture.def
     文件      106549  2014-09-19 11:26  ShowPicture\ShowPicture.dll
     文件        4305  2014-09-18 18:04  ShowPicture\ShowPicture.dsp
............此处省略56个文件信息