接这个已经结了的贴:http://topic.csdn.net/u/20101209/12/57afbd8c-1919-4919-a864-0cd3909ffe04.html
m_pGraph = Graphics::FromHDC(m_pParent->m_hdcMemory);
m_pImage = Image::FromFile(m_strImgFile);
这两行代码创建的内存,用delete m_pGraph来释放内存可以吗?好像在.net中内存是自动回收的,VC6没有用.net,该怎么操作?
m_pGraph = Graphics::FromHDC(m_pParent->m_hdcMemory);
m_pImage = Image::FromFile(m_strImgFile);
这两行代码创建的内存,用delete m_pGraph来释放内存可以吗?好像在.net中内存是自动回收的,VC6没有用.net,该怎么操作?
没有new就不要
VOID Example_FromHDC(HDC hdc)
{
Graphics* pGraphics = Graphics::FromHDC(hdc);
Pen pen(Color(255, 255, 0, 0));
pGraphics->DrawRectangle(&pen, 10, 10, 200, 100);
delete pGraphics;
}
{
return new Graphics(hdc);
}inline Image* Image::FromFile(IN const WCHAR* filename,IN BOOL useEmbeddedColorManagement)
{
return new Image(
filename,
useEmbeddedColorManagement
);
}注意这2个函数的new,所以释放的时候还是要delete
if(m_pGraph != NULL)
{
delete m_pGraph;
m_pGraph = NULL;
}
if(m_pImage!= NULL)
{
delete m_pImage;
m_pImage = NULL;
}