[Bug 31677] New: a child window not opened properly

http://bugs.winehq.org/show_bug.cgi?id=31677

Bug #: 31677
           Summary: a child window not opened properly
           Product: Wine
           Version: 1.5.12
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

This code is not working properly:

void PreSubclassWindow()
{

LONG Styles = GetWindowLong(m_hWnd, GWL_STYLE);
LONG ExStyles = GetWindowLong(m_hWnd, GWL_EXSTYLE);

if (Styles == 0 || ExStyles == 0)
return;

Styles |= WS_CHILD;
Styles &= ~WS_OVERLAPPED;
Styles &= ~WS_CAPTION;
Styles &= ~WS_BORDER;

ExStyles &= ~WS_EX_CLIENTEDGE;
ExStyles &= ~WS_EX_DLGMODALFRAME;
ExStyles &= ~WS_EX_WINDOWEDGE;

SetWindowLong(m_hWnd, GWL_STYLE, Styles);
SetWindowLong(m_hWnd, GWL_EXSTYLE, ExStyles);

}