怎样让一个窗体之前显示另一个窗体

[xq1984031201]

我现在有两个对话框，Dlg1,Dlg2,
Dlg1是主窗体，我想在主窗体下面一直全屏显示Dlg,

[danny5508]

Dlg2.DoModal();
Dlg2.ShowWindow(SW_SHOWMAXIMIZED);
Dlg1.DoModal();

[慧心石]

case WM_SIZE:

HDWP hdwp;
RECT rc;

// Calculate the display rectangle, assuming the
// tab control is the size of the client area.
SetRect(&rc, 0, 0,
GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
TabCtrl_AdjustRect(hTab, FALSE, &rc);


hdwp = BeginDeferWindowPos(2);
hdwp = DeferWindowPos(hdwp, hTab, HWND_BOTTOM, 0, 0,
GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam),
SWP_NOMOVE | SWP_NOZORDER
);

hdwp = DeferWindowPos(hdwp,
hButton, HWND_TOP, rc.left, rc.top,
rc.right - rc.left, rc.bottom - rc.top, 0
);
EndDeferWindowPos(hdwp);