00001 /* ///////////////////////////////////////////////////////////////////////// 00002 * File: winstl/window/hdc_scope.hpp (originally MWGdi.h, ::SynesisWin) 00003 * 00004 * Purpose: GDI scope class. 00005 * 00006 * Created: 20th October 1994 00007 * Updated: 10th August 2009 00008 * 00009 * Home: http://stlsoft.org/ 00010 * 00011 * Copyright (c) 1994-2009, Matthew Wilson and Synesis Software 00012 * All rights reserved. 00013 * 00014 * Redistribution and use in source and binary forms, with or without 00015 * modification, are permitted provided that the following conditions are met: 00016 * 00017 * - Redistributions of source code must retain the above copyright notice, this 00018 * list of conditions and the following disclaimer. 00019 * - Redistributions in binary form must reproduce the above copyright notice, 00020 * this list of conditions and the following disclaimer in the documentation 00021 * and/or other materials provided with the distribution. 00022 * - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of 00023 * any contributors may be used to endorse or promote products derived from 00024 * this software without specific prior written permission. 00025 * 00026 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00027 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00028 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00029 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00030 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00031 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00032 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00033 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00034 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00035 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00036 * POSSIBILITY OF SUCH DAMAGE. 00037 * 00038 * ////////////////////////////////////////////////////////////////////// */ 00039 00040 00047 #ifndef WINSTL_INCL_WINSTL_WINDOW_HPP_HDC_SCOPE 00048 #define WINSTL_INCL_WINSTL_WINDOW_HPP_HDC_SCOPE 00049 00050 #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION 00051 # define WINSTL_VER_WINSTL_WINDOW_HPP_HDC_SCOPE_MAJOR 3 00052 # define WINSTL_VER_WINSTL_WINDOW_HPP_HDC_SCOPE_MINOR 0 00053 # define WINSTL_VER_WINSTL_WINDOW_HPP_HDC_SCOPE_REVISION 1 00054 # define WINSTL_VER_WINSTL_WINDOW_HPP_HDC_SCOPE_EDIT 43 00055 #endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */ 00056 00057 /* ///////////////////////////////////////////////////////////////////////// 00058 * Includes 00059 */ 00060 00061 #ifndef WINSTL_INCL_WINSTL_H_WINSTL 00062 # include <winstl/winstl.h> 00063 #endif /* !WINSTL_INCL_WINSTL_H_WINSTL */ 00064 00065 /* ///////////////////////////////////////////////////////////////////////// 00066 * Namespace 00067 */ 00068 00069 #ifndef _WINSTL_NO_NAMESPACE 00070 # if defined(_STLSOFT_NO_NAMESPACE) || \ 00071 defined(STLSOFT_DOCUMENTATION_SKIP_SECTION) 00072 /* There is no stlsoft namespace, so must define ::winstl */ 00073 namespace winstl 00074 { 00075 # else 00076 /* Define stlsoft::winstl_project */ 00077 00078 namespace stlsoft 00079 { 00080 00081 namespace winstl_project 00082 { 00083 00084 # endif /* _STLSOFT_NO_NAMESPACE */ 00085 #endif /* !_WINSTL_NO_NAMESPACE */ 00086 00087 /* ///////////////////////////////////////////////////////////////////////// 00088 * Classes 00089 */ 00090 00095 class HDC_scope 00096 { 00099 public: 00100 typedef HDC_scope class_type; 00101 typedef HDC (WINAPI *HDC_get_fn_type)(HWND); 00103 00106 public: 00111 HDC_scope(HDC hdc, HWND hwnd) 00112 : m_hdc(hdc) 00113 , m_hwnd(hwnd) 00114 { 00115 WINSTL_ASSERT(NULL != hwnd); 00116 } 00121 HDC_scope(HWND hwnd, HDC_get_fn_type pfn) 00122 : m_hdc(pfn(hwnd)) 00123 , m_hwnd(hwnd) 00124 { 00125 WINSTL_ASSERT(NULL != hwnd); 00126 } 00128 ~HDC_scope() stlsoft_throw_0() 00129 { 00130 if(NULL != m_hdc) 00131 { 00132 ::ReleaseDC(m_hwnd, m_hdc); 00133 } 00134 } 00136 00139 public: 00141 HDC get_hdc() const 00142 { 00143 return m_hdc; 00144 } 00146 HWND get_hwnd() const 00147 { 00148 return m_hwnd; 00149 } 00151 00154 private: 00155 HDC m_hdc; 00156 HWND m_hwnd; 00158 00159 // Not to be implemented 00160 private: 00161 HDC_scope(class_type const&); 00162 class_type& operator =(class_type const&); 00163 }; 00164 00165 /* ////////////////////////////////////////////////////////////////////// */ 00166 00167 #ifndef _WINSTL_NO_NAMESPACE 00168 # if defined(_STLSOFT_NO_NAMESPACE) || \ 00169 defined(STLSOFT_DOCUMENTATION_SKIP_SECTION) 00170 } // namespace winstl 00171 # else 00172 } // namespace winstl_project 00173 } // namespace stlsoft 00174 # endif /* _STLSOFT_NO_NAMESPACE */ 00175 #endif /* !_WINSTL_NO_NAMESPACE */ 00176 00177 /* ////////////////////////////////////////////////////////////////////// */ 00178 00179 #endif /* WINSTL_INCL_WINSTL_WINDOW_HPP_HDC_SCOPE */ 00180 00181 /* ///////////////////////////// end of file //////////////////////////// */