Posted on 2010-02-14 22:54
S.l.e!ep.￠% 閱讀(2011)
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我研究過,原因及隱藏方法 給分.
MFC對話框應(yīng)用程序啟動時(shí)在OnInitDialog()之后會顯示對話框的原因如下
MLF_SHOWONIDLE標(biāo)志
int CDialog::DoModal()
????// enter modal loop
????DWORD dwFlags = MLF_SHOWONIDLE;
????if (GetStyle() & DS_NOIDLEMSG)
????????dwFlags |= MLF_NOIDLEMSG;
int CWnd::RunModalLoop(DWORD dwFlags)
????BOOL bShowIdle = (dwFlags & MLF_SHOWONIDLE) && !(GetStyle() & WS_VISIBLE);
????????// show the dialog when the message queue goes idle
????????if (bShowIdle)
????????{
????????????ShowWindow(SW_SHOWNORMAL);
????????????UpdateWindow();
????????????bShowIdle = FALSE;
????????}
MFC對話框應(yīng)用程序啟動時(shí)隱藏的方法
1 取消對話框的WS_VISIBLE屬性
2 重載WM_ERASEBKGND消息 首次調(diào)用此函數(shù)進(jìn)行忽略即可
BOOL CxxxDlg::OnEraseBkgnd(CDC* pDC)
{
????static bool bFirst=true;
????if(bFirst)
????{
????????bFirst=false;
????????ShowWindow(SW_HIDE);
????????return TRUE;
????}
????
????return CDialog::OnEraseBkgnd(pDC);
}