MFC 初始化 GDI+



1. 在stdafx.h文件中在#include <afxext.h>后面加

#include <gdiplus.h> 		    //将GDI+头文件加入到工程中 
#pragma comment(lib, "gdiplus.lib") //将GDI+的lib文件加入到工程中 
using namespace Gdiplus; 	    //使用GDI+的命名空间 

2. 在 class C**App : public CWinApp里面定义

protected:
	ULONG_PTR m_gdiplusToken;

public:
	virtual int ExitInstance(); //重载ExitInstance

3. 在 BOOL C**App::InitInstance()函数中增加代码

Gdiplus::GdiplusStartupInput gdiplusStartupInput;
Gdiplus::GdiplusStartup(&m_gdiplusToken, &gdiplusStartupInput, NULL);

4. 增加函数实现ExitInstance()

int C**App::ExitInstance()
{
	// TODO: Add your specialized code here and/or call the base class 

	//GDI+ Termination, Must be called before GDI+ is unloaded.(卸载GDI+之前必须调用此接口)
	//Must not be called from DllMain, it call cause deadlock.(不能在DllMain中调用,会导致死锁)
	//GDI+ API may not be called after GdiplusShutdown, Pay careful attention to GDI+ object destructors.
	GdiplusShutdown(m_gdiplusToken); //关闭GDI +

	return CWinApp::ExitInstance();
}