/usr/include/wx-3.0/wx/wupdlock.h is in wx3.0-headers 3.0.4+dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Name: wx/wupdlock.h
// Purpose: wxWindowUpdateLocker prevents window redrawing
// Author: Vadim Zeitlin
// Created: 2006-03-06
// Copyright: (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WUPDLOCK_H_
#define _WX_WUPDLOCK_H_
#include "wx/window.h"
// ----------------------------------------------------------------------------
// wxWindowUpdateLocker prevents updates to the window during its lifetime
// ----------------------------------------------------------------------------
class wxWindowUpdateLocker
{
public:
// create an object preventing updates of the given window (which must have
// a lifetime at least as great as ours)
wxWindowUpdateLocker(wxWindow *win) : m_win(win) { win->Freeze(); }
// dtor thaws the window to permit updates again
~wxWindowUpdateLocker() { m_win->Thaw(); }
private:
wxWindow *m_win;
wxDECLARE_NO_COPY_CLASS(wxWindowUpdateLocker);
};
#endif // _WX_WUPDLOCK_H_
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