在启动前隐藏一个MFC DoModal对话框

BEGIN_MESSAGE_MAP(CMyDialog, CDialog)
ON_WM_WINDOWPOSCHANGING()
END_MESSAGE_MAP()

BOOL CHiddenDialog::OnInitDialog()
{
CDialog::OnInitDialog();
m_visible = FALSE;

return TRUE;
}

void CHiddenDialog::OnWindowPosChanging(WINDOWPOS FAR* lpwndpos)
{
if (!m_visible)
lpwndpos->flags &= ~SWP_SHOWWINDOW;

CDialog::OnWindowPosChanging(lpwndpos);
}

m_visible = TRUE;
ShowWindow(SW_SHOW);