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derek7

Dialog app

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a about dilog in a mfc dialog app is modified this way. but it just show several microseconds and immediately disappear. a message loop already in app. that is main dialog DoModal(). CAboutDlg dlgAbout; CWnd *c = AfxGetMainWnd(); dlgAbout.Create(IDD_ABOUTBOX,c); dlgAbout.ShowWindow(SW_SHOW);

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BOOL CtestDlg::OnInitDialog()
{.............

CWnd c;
if (c.Create(AfxRegisterWndClass(
CS_DBLCLKS|CS_HREDRAW|CS_VREDRAW,
AfxGetApp()->LoadStandardCursor(IDC_ARROW),
(HBRUSH)GetStockObject(WHITE_BRUSH),
NULL),
NULL,WS_VISIBLE|WS_CLIPCHILDREN|WS_CLIPSIBLINGS,
CRect(0,0,0,0),AfxGetMainWnd(),11,NULL)==FALSE)
return false;

c.MoveWindow(0,0,333,121);
c.ShowWindow(SW_SHOW);
c.UpdateWindow();
................
}


but sub window is not show in main dlg . why?

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Guest Anonymous Poster
"c" is a local object, meaning it goes out of scope on the function's return.

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