xcine的专栏

理解SetWindowOrg,SetViewportOrg,SetWindowExt,SetViewportExt按习惯，(0,0)就原点，原点就是(0,0)，但是如果用此来理解windows的map mode，就会非常繁。其实，稍微改变一下观念，windows的map mode就比较好理解了。举例说明：page space---->device spacepDC->SetMapM

        CRect rectClient;         GetClientRect(rectClient);          pDC->SetMapMode(MM_ANISOTROPIC);         pDC->SetWindowExt(CSize(1000,1000));         pDC->SetViewportExt(rectClient.rig