Question

为什么::GetWindowRect(）在OnInitDialog中调用会出错？

程序调试时没有问题
但是一运行就会在此处报错
CClientDC *pDc=new CClientDC(this);
CRect rect;
::GetWindowRect(GetDlgItem(IDC_TEXT)->m_hWnd,rect);
ScreenToClient(rect);
CBrush brush(Colour);
pDc->FillRect(rect,&brush);
delete pDc;

Answer 1

应该这样调用：GetDlgItem(IDC_TEXT)->GetWindowRect(&rect);