如题,请教高手帮忙了!!!

首先,给CxxView类添加OnDraw()，在OnDraw()中，
CBrush brush(RGB(255,0,0));
CBrush *pOldbrush;
pOldbrush=pDC->SelectObject(&brush);
pDC->Rectangle(10,10,20,20);//矩形的左上角和右下角的坐标
pDC->SelectObject(pOldbrush);
这样就可以了，

Deleting intermediate files and output files for project 'FForm - Win32 Debug'.
--------------------Configuration: FForm - Win32 Debug--------------------
D:\Program Files\Microsoft Visual Studio\MyProjects\FForm\FFormView.cpp(125) : error C2065: '->pDC' :undeclared identifier

D:\Program Files\Microsoft Visual Studio\MyProjects\FForm\FFormView.cpp(125) : error C2227: left of '->SelectObject' must point to class/struct/union

D:\Program Files\Microsoft Visual Studio\MyProjects\FForm\FFormView.cpp(126) : error C2227: left of '->Rectangle' must point to class/struct/union

D:\Program Files\Microsoft Visual Studio\MyProjects\FForm\FFormView.cpp(127) : error C2227: left of '->SelectObject' must point to class/struct/union
Generating Code...

这是怎么回事啊?
还请高手指教啊,是不是FormView里跟View里不一样啊?

OnDraw(CDC *pDC)

感谢高手