怎样把DrawRect函数插入到OnTimer函数里
void CNecDlg::DrawRect(CDC *pDC,const CRect &rc)
{
pDC->MoveTo(rc.left,rc.top);
pDC->LineTo(rc.right,rc.top);
pDC->LineTo(rc.right,rc.bottom);
pDC->LineTo(rc.left,rc.bottom);
pDC->LineTo(rc.left,rc.top);
}
void CNecDlg::OnTimer(UINT nIDEvent)
{
DrawMenu(m_nMenuIndex,true);
DrawButton(m_nButtonIndex);
CDialog::OnTimer(nIDEvent);
}
void CNecDlg::DrawRect(CDC *pDC,const CRect &rc)
{
pDC->MoveTo(rc.left,rc.top);
pDC->LineTo(rc.right,rc.top);
pDC->LineTo(rc.right,rc.bottom);
pDC->LineTo(rc.left,rc.bottom);
pDC->LineTo(rc.left,rc.top);
}
void CNecDlg::OnTimer(UINT nIDEvent)
{
DrawMenu(m_nMenuIndex,true);
DrawButton(m_nButtonIndex);
CDialog::OnTimer(nIDEvent);
}
{
if(TpDC!=0&&Trc!=0)
DrawRect(TpDC,Trc);
}当然,这样你要想办法在TempDrawRect()调用前为TpDC和Trc赋值。要不再直接的方法就是在void CNecDlg::OnTimer()内部调用DrawRect(),不过一样要有那两个成员变数。