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///////////////////////////////////////////////////////////////////////////////
// Name: wx/msw/private/paint.h
// Purpose: Helpers for handling repainting
// Author: Vadim Zeitlin
// Created: 2020-02-10
// Copyright: (c) 2020 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_MSW_PRIVATE_PAINT_H_
#define _WX_MSW_PRIVATE_PAINT_H_
#include "wx/stack.h"
namespace wxMSWImpl
{
// Data used by WM_PAINT handler
struct PaintData
{
explicit PaintData(wxWindowMSW* window_)
: window(window_),
createdPaintDC(false)
{
}
// The window being repainted (never null).
wxWindowMSW* const window;
// True if the user-defined paint handler created wxPaintDC.
bool createdPaintDC;
};
// Stack storing data for the possibly nested WM_PAINT handlers.
extern wxStack<PaintData> paintStack;
} // namespace wxMSWImpl
#endif // _WX_MSW_PRIVATE_PAINT_H_
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