(转)基于对话框的MFC程序启动后自动隐藏

   这是我搜到的比较好的解决方案了，调试然后修改了nDoFirstHide = 4 ，使得正好隐藏了，代码如下：

 

class CxxDlg : public CDialog
{
protected:
    int nDoFirstHide;//设置第一启动就隐藏的次数
}

CxxDlg::CxxDlg(CWnd* pParent /*=NULL*/)
    : CDialog(CxxDlg::IDD, pParent)
{
    nDoFirstHide = 4;
}

BEGIN_MESSAGE_MAP(CxxDlg, CDialog)
ON_WM_WINDOWPOSCHANGING()
END_MESSAGE_MAP()

void CxxDlg::OnWindowPosChanging(WINDOWPOS* lpwndpos)
{
    if(nDoFirstHide -- < 1)//开始运行才隐藏，以后有SW_SHOW就正常显示
    {
        CDialog::OnWindowPosChanging(lpwndpos);
        return;
    }
    //启动隐藏
    if(lpwndpos->flags&SWP_SHOWWINDOW)
    {
        lpwndpos->flags&=~SWP_SHOWWINDOW;
        PostMessage(WM_WINDOWPOSCHANGING,0,(LPARAM)lpwndpos);
        ShowWindow(SW_HIDE);
    }
    else
        CDialog::OnWindowPosChanging(lpwndpos);
}