MFC10.0到底对窗口创建做了什么

[Ians_Huyu]

废话不多说了，这都能ASSERT失败：
BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
if( !CFrameWndEx::PreCreateWindow(cs) )
return FALSE;

WNDCLASS wndclass;
wndclass.cbClsExtra=wndclass.cbWndExtra=0;
wndclass.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH);
wndclass.hCursor=LoadCursor(NULL,IDC_ARROW);
wndclass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
wndclass.hInstance=AfxGetInstanceHandle();
wndclass.lpfnWndProc=::DefWindowProc;
wndclass.lpszClassName=_T("sunxin.org");
wndclass.lpszMenuName=NULL;
wndclass.style=CS_VREDRAW | CS_HREDRAW;
RegisterClass(&wndclass);
cs.lpszClass=_T("sunxin.org");
// TODO: 在此处通过修改
// CREATESTRUCT cs 来修改窗口类或样式
return TRUE;
}