/*
//首先获取设备描述符
HDC hdc;
hdc=::GetDC(m_hWnd);
//移动到开始的地方
MoveToEx(hdc,m_ptOrigin.x,m_ptOrigin.y,NULL);
//画线
LineTo(hdc,point.x,point.y);
//释放设备
::ReleaseDC(m_hWnd,hdc);
*/
/*
CDC* pDC=GetDC();
pDC->MoveTo(m_ptOrigin);
pDC->LineTo(point);
ReleaseDC(pDC);
*/
/*
CClientDC dc(this);
dc.MoveTo(m_ptOrigin);
dc.LineTo(point);
*/
//CWindowDC dc(this);
//CWindowDC dc(GetParent());
CWindowDC dc(GetDesktopWindow());
dc.MoveTo(m_ptOrigin);
dc.LineTo(point);
MFC HDC CDC的区别(其实我真心不乐意写MFC)
最新推荐文章于 2021-03-04 03:55:20 发布