原文链接地址:http://www.cnblogs.com/chuanzifan/archive/2011/11/26/2264507.html

1、在stdafx.h中

#include <GdiPlus.h>
using namespace Gdiplus;
#pragma comment(lib, "gdiplus.lib")

2、在APP.cpp中声明全局变量

ULONG_PTR m_gdiplusToken;

3、注意在App的InitInstance函数里, 在"INT_PTR nResponse = dlg.DoModal();"之前,添加下面的语句:

GdiplusStartupInput m_gdiplusStartupInput;
GdiplusStartup(&m_gdiplusToken, &m_gdiplusStartupInput, NULL);

4、在App的ExitInstance()中调用:ExitInstance()函数在类的重写中添加

int CTestGDIApp::ExitInstance()
{
// TODO: Add your specialized code here and/or call the base class
GdiplusShutdown(m_gdiplusToken);
return CWinApp::ExitInstance();
}

5、一个使用的小例子:按钮触发画正弦波。基于对话框的MFC。

void CTestGDIDlg::OnBnClickedButton1()
{ // TODO: 在此添加控件通知处理程序代码
CClientDC dc(this);
CRect rect;
GetClientRect(&rect);
dc.SetMapMode(MM_ANISOTROPIC);
dc.SetWindowOrg(0,0);
dc.SetWindowExt(rect.right,rect.bottom);
dc.SetViewportOrg(0,rect.bottom/2);
dc.SetViewportExt(rect.right/2,-rect.bottom); Graphics graphics(dc);
Pen myPen(Color::Red);
myPen.SetWidth(1);
for(int i=0;i<rect.right;i++)
graphics.DrawLine(&myPen,i,100*sin(2*(i/(rect.right/5.0))*3.14),i+1,100*sin(2*((i+1)/(rect.right/5.0))*3.14));
myPen.SetColor(Color::Blue);
graphics.DrawLine(&myPen, 0, 0, rect.right, 0); }

 

运行结果:

GDI+小例子-LMLPHP

05-11 19:26