void CPlayWndDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作矩形中居中
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
if(m_isPlaying == FALSE)
{
CClientDC dc(GetDlgItem(IDC_VW_FRAME));
dc.SetBkColor(RGB(0,0,0));
CRect rc;
GetDlgItem(IDC_VW_FRAME)->GetClientRect(rc);
//ClientToScreen(rc);
dc.FillRect(rc, CBrush::FromHandle((HBRUSH)GetStockObject(BLACK_BRUSH)));
GetDlgItem(IDC_VW_FRAME)->Invalidate();
}
CDialog::OnPaint();
}
} |