win.h

Go to the documentation of this file.

/*
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Copyright (C) 2005 Robin McNeill
*/

#ifndef OMGUI_WIN32_WIN_H
#define OMGUI_WIN32_WIN_H

//#define DEBUG_DWP

#include <omgui/win32/theme.h>
#include <omgui/debug.h>

namespace omgui {
    namespace win32 {
        
class Widget;

Widget *get_widget_from_hwnd(HWND h);
template <typename T> T *get_widget_from_hwnd(HWND h)
{
    return dynamic_cast<T*>(get_widget_from_hwnd(h));
}

void associate_hwnd(HWND h, Widget *wnd);

void disassociate_hwnd(HWND h);

bool has_widgets();

LRESULT CALLBACK widget_wndproc(HWND hwnd, UINT msg, WPARAM w_param, LPARAM l_param);

void save_instance_handle(HINSTANCE handle);

HINSTANCE get_instance_handle();

class CreationHook
{
public:

    CreationHook(Widget *w);

    ~CreationHook();

    static LRESULT CALLBACK hook_proc(int code, WPARAM w_param, LPARAM l_param);
};

class ScopedDC
{
public:
    ScopedDC(HWND hwnd, HDC dc) : m_dc(dc), m_hwnd(hwnd) { }

    ~ScopedDC()
    {
        ::ReleaseDC(m_hwnd, m_dc);
    }

    operator HDC () const
    {
        return m_dc;
    }

private:
    HDC m_dc;
    HWND m_hwnd;

    // Non copyable and non assignable
    ScopedDC &operator= (const ScopedDC &);
    ScopedDC(const ScopedDC &);
};

    } // win32
} // omgui

#endif // OMGUI_WIN32_WIN_H

---