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1
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1 #pragma once
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2 // Various WTL extensions that are not fb2k specific and can be reused in other WTL based software
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3
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4 #include <Uxtheme.h>
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5 #include <functional>
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6
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7 #define ATLASSERT_SUCCESS(X) {auto RetVal = (X); ATLASSERT( RetVal ); (void) RetVal; }
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8
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9 #ifdef SubclassWindow // mitigate windowsx.h clash
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10 #undef SubclassWindow
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11 #endif
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12
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13 class NoRedrawScope {
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14 public:
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15 NoRedrawScope(HWND p_wnd) throw() : m_wnd(p_wnd) {
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16 m_wnd.SetRedraw(FALSE);
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17 }
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18 ~NoRedrawScope() throw() {
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19 m_wnd.SetRedraw(TRUE);
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20 }
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21 private:
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22 CWindow m_wnd;
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23 };
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24
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25 class NoRedrawScopeEx {
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26 public:
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27 NoRedrawScopeEx(HWND p_wnd) throw() : m_wnd(p_wnd) {
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28 if (m_wnd.IsWindowVisible()) {
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29 m_active = true;
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30 m_wnd.SetRedraw(FALSE);
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31 }
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32 }
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33 ~NoRedrawScopeEx() throw() {
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34 if (m_active) {
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35 m_wnd.SetRedraw(TRUE);
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36 m_wnd.RedrawWindow(NULL,NULL,RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
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37 }
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38 }
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39 NoRedrawScopeEx(const NoRedrawScopeEx&) = delete;
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40 void operator=(const NoRedrawScopeEx&) = delete;
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41 private:
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42 bool m_active = false;
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43 CWindow m_wnd;
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44 };
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45
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46 class NoRedrawControl {
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47 public:
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48 CWindow m_wnd;
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49
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50 void operator++() {
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51 m_count++;
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52 if (m_wnd.IsWindowVisible()) {
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53 m_active = true;
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54 m_wnd.SetRedraw(FALSE);
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55 }
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56 }
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57 void operator--() {
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58 if (--m_count == 0 && m_active) {
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59 m_wnd.SetRedraw(TRUE);
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60 m_wnd.RedrawWindow(NULL, NULL, RDW_INVALIDATE | RDW_ERASE | RDW_ALLCHILDREN);
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61 m_active = false;
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62 }
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63 }
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64 int m_count = 0;
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65 bool m_active = false;
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66
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67 NoRedrawControl(HWND wnd = NULL) : m_wnd(wnd) {}
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68 void operator=(const NoRedrawControl&) = delete;
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69 NoRedrawControl(const NoRedrawControl&) = delete;
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70 };
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71
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72 LRESULT RelayEraseBkgnd(HWND p_from, HWND p_to, HDC p_dc);
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73 void InjectParentEraseHandler(HWND);
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74 void InjectEraseHandler(HWND, HWND sendTo);
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75 void InjectParentCtlColorHandler(HWND);
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76 void BounceNextDlgCtl(HWND wnd, HWND wndTo);
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77
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78
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79
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80 #define MSG_WM_ERASEBKGND_PARENT() \
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81 if (uMsg == WM_ERASEBKGND) { \
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82 lResult = ::RelayEraseBkgnd(hWnd, ::GetParent(hWnd), (HDC)wParam); \
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83 return TRUE; \
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84 }
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85
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86 #define MSG_WM_ERASEBKGND_TO(wndTarget) \
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87 if (uMsg == WM_ERASEBKGND) { \
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88 lResult = ::RelayEraseBkgnd(hWnd, wndTarget, (HDC)wParam); \
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89 return TRUE; \
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90 }
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91
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92 #define MSG_WM_TIMER_EX(timerId, func) \
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93 if (uMsg == WM_TIMER && (UINT_PTR)wParam == timerId) \
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94 { \
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95 SetMsgHandled(TRUE); \
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96 func(); \
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97 lResult = 0; \
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98 if(IsMsgHandled()) \
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99 return TRUE; \
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100 }
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101
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102 #define MESSAGE_HANDLER_SIMPLE(msg, func) \
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103 if(uMsg == msg) \
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104 { \
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105 SetMsgHandled(TRUE); \
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106 func(); \
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107 lResult = 0; \
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108 if(IsMsgHandled()) \
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109 return TRUE; \
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110 }
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111
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112 // void OnSysCommandHelp()
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113 #define MSG_WM_SYSCOMMAND_HELP(func) \
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114 if (uMsg == WM_SYSCOMMAND && wParam == SC_CONTEXTHELP) \
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115 { \
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116 SetMsgHandled(TRUE); \
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117 func(); \
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118 lResult = 0; \
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119 if(IsMsgHandled()) \
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120 return TRUE; \
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121 }
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122
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123 //BOOL ProcessWindowMessage(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lResult, DWORD dwMsgMapID)
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124 #define END_MSG_MAP_HOOK() \
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125 break; \
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126 default: \
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127 return __super::ProcessWindowMessage(hWnd, uMsg, wParam, lParam, lResult, dwMsgMapID); \
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128 } \
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129 return FALSE; \
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130 }
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131
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132
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133 // Obsolete, use CImageListManaged instead
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134 class CImageListContainer : public CImageList {
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135 public:
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136 CImageListContainer() {}
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137 ~CImageListContainer() {Destroy();}
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138
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139 void operator=(const CImageListContainer&) = delete;
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140 CImageListContainer(const CImageListContainer&) = delete;
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141 };
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142
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143
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144 template<bool managed> class CThemeT {
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145 public:
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146 CThemeT(HTHEME source = NULL) : m_theme(source) {}
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147
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148 ~CThemeT() {
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149 Release();
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150 }
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151
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152 HTHEME OpenThemeData(HWND wnd,LPCWSTR classList) {
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153 Release();
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154 return m_theme = ::OpenThemeData(wnd, classList);
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155 }
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156
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157 void Release() {
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158 HTHEME releaseme = pfc::replace_null_t(m_theme);
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159 if (managed && releaseme != NULL) CloseThemeData(releaseme);
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160 }
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161
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162 operator HTHEME() const {return m_theme;}
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163 HTHEME m_theme;
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164 };
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165 typedef CThemeT<false> CThemeHandle;
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166 typedef CThemeT<true> CTheme;
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167
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168
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169 class CCheckBox : public CButton {
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170 public:
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171 void ToggleCheck(bool state) {SetCheck(state ? BST_CHECKED : BST_UNCHECKED);}
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172 bool IsChecked() const {return GetCheck() == BST_CHECKED;}
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173
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174 CCheckBox(HWND hWnd = NULL) : CButton(hWnd) { }
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175 CCheckBox & operator=(HWND wnd) {m_hWnd = wnd; return *this; }
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176 };
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177
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178 class CEditPPHooks : public CWindowImpl<CEditPPHooks, CEdit> {
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179 public:
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180 bool HandleCtrlA = true, NoEscSteal = false, NoEnterSteal = false, WantAllKeys = false;
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181
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182 std::function<void ()> onEnterKey;
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183 std::function<void ()> onEscKey;
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184
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185 CEditPPHooks(CMessageMap * hookMM = nullptr, int hookMMID = 0) : m_hookMM(hookMM), m_hookMMID(hookMMID) {}
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186
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187 BEGIN_MSG_MAP_EX(CEditPPHooks)
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188 MSG_WM_KEYDOWN(OnKeyDown)
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189 MSG_WM_CHAR(OnChar)
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190 MSG_WM_GETDLGCODE(OnEditGetDlgCode)
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191
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192 if ( m_hookMM != nullptr ) {
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193
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194 CHAIN_MSG_MAP_ALT_MEMBER( ( * m_hookMM ), m_hookMMID );
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195
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196 }
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197
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198 END_MSG_MAP()
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199
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200 static void DeleteLastWord( CEdit wnd, bool bForward = false );
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201 private:
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202 static bool isSpecial( wchar_t c ) {
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203 return (unsigned) c < ' ';
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204 }
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205 static bool isWordDelimiter( wchar_t c ) {
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206 return c == ' ' || c == ',' || c == '.' || c == ';' || c == ':';
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207 }
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208 void OnChar(UINT nChar, UINT, UINT nFlags) {
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209 if (m_suppressChar != 0) {
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210 if (nChar == m_suppressChar) return;
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211 }
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212 if (m_suppressScanCode != 0) {
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213 UINT code = nFlags & 0xFF;
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214 if (code == m_suppressScanCode) return;
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215 }
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216 SetMsgHandled(FALSE);
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217 }
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218 void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) {
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219 (void)nRepCnt;
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220 m_suppressChar = 0;
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221 m_suppressScanCode = 0;
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222 if (HandleCtrlA) {
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223 if (nChar == 'A') {
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224 if (GetHotkeyModifierFlags() == MOD_CONTROL) {
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225 m_suppressScanCode = nFlags & 0xFF;
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226 this->SetSelAll(); return;
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227 }
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228 }
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229 if ( nChar == VK_BACK ) {
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230 if (GetHotkeyModifierFlags() == MOD_CONTROL) {
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231 m_suppressScanCode = nFlags & 0xFF;
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232 DeleteLastWord( *this ) ; return;
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233 }
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234 }
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235 if ( nChar == VK_DELETE ) {
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236 if (GetHotkeyModifierFlags() == MOD_CONTROL) {
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237 m_suppressScanCode = nFlags & 0xFF;
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238 DeleteLastWord( *this, true ) ; return;
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239 }
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240 }
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241 if ( nChar == VK_RETURN && onEnterKey ) {
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242 m_suppressChar = nChar;
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243 onEnterKey(); return;
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244 }
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245 if ( nChar == VK_ESCAPE && onEscKey ) {
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246 m_suppressChar = nChar;
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247 onEscKey(); return;
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248 }
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249 }
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250 SetMsgHandled(FALSE);
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251 }
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252 UINT OnEditGetDlgCode(LPMSG lpMsg) {
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253 if (WantAllKeys) return DLGC_WANTALLKEYS;
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254 if (lpMsg == NULL) {
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255 SetMsgHandled(FALSE); return 0;
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256 } else {
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257 switch(lpMsg->message) {
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258 case WM_KEYDOWN:
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259 case WM_SYSKEYDOWN:
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260 switch(lpMsg->wParam) {
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261 case VK_ESCAPE:
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262 if (onEscKey) {
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263 return DLGC_WANTMESSAGE;
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264 }
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265 SetMsgHandled(!!NoEscSteal);
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266 return 0;
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267 case VK_RETURN:
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268 if (onEnterKey) {
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269 return DLGC_WANTMESSAGE;
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270 }
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271 SetMsgHandled(!!NoEnterSteal);
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272 return 0;
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273 default:
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274 SetMsgHandled(FALSE); return 0;
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275 }
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276 default:
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277 SetMsgHandled(FALSE); return 0;
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278
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279 }
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280 }
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281 }
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282 UINT m_suppressChar = 0, m_suppressScanCode = 0;
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283 CMessageMap * const m_hookMM;
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284 const int m_hookMMID;
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285 };
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286
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287
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288 class CEditNoEscSteal : public CEdit {
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289 public:
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290 void SubclassWindow(HWND wnd) {
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291 this->Attach(wnd);
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292 SubclassThisWindow(wnd);
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293 }
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294 static void SubclassThisWindow(HWND wnd) {
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295 SetWindowSubclass(wnd, proc, 0, 0);
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296 }
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297 private:
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298 static LRESULT CALLBACK proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR, DWORD_PTR) {
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299 if ( uMsg == WM_GETDLGCODE ) {
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300 auto lpMsg = reinterpret_cast<LPMSG>(lParam);
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301 if (lpMsg != NULL) {
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302 switch(lpMsg->message) {
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303 case WM_KEYDOWN:
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304 case WM_SYSKEYDOWN:
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305 switch(lpMsg->wParam) {
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306 case VK_ESCAPE:
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307 return 0;
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308 }
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309 }
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310 }
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311 }
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312 return DefSubclassProc(hWnd, uMsg, wParam, lParam);
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313 }
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314 };
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315
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316 class CEditNoEnterEscSteal : public CEdit {
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317 public:
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318 void SubclassWindow(HWND wnd) {
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319 this->Attach(wnd);
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320 SubclassThisWindow(wnd);
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321 }
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322 static void SubclassThisWindow(HWND wnd) {
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323 SetWindowSubclass(wnd, proc, 0, 0);
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324 }
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325 private:
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326 static LRESULT CALLBACK proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR, DWORD_PTR) {
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327 if ( uMsg == WM_GETDLGCODE ) {
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328 auto lpMsg = reinterpret_cast<LPMSG>(lParam);
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329 if (lpMsg != NULL) {
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330 switch(lpMsg->message) {
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331 case WM_KEYDOWN:
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332 case WM_SYSKEYDOWN:
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333 switch(lpMsg->wParam) {
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334 case VK_RETURN:
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335 case VK_ESCAPE:
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336 return 0;
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337 }
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338 }
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339 }
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340 }
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341 return DefSubclassProc(hWnd, uMsg, wParam, lParam);
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342 }
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343 };
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344
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345
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346
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347 class CWindowClassUnregisterScope {
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348 public:
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349 CWindowClassUnregisterScope() : name() {}
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350 const TCHAR * name;
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351 void Set(const TCHAR * n) {ATLASSERT( name == NULL ); name = n; }
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352 bool IsActive() const {return name != NULL;}
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353 void CleanUp() {
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354 const TCHAR * n = name; name = NULL;
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355 if (n != NULL) ATLASSERT_SUCCESS( UnregisterClass(n, (HINSTANCE)&__ImageBase) );
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356 }
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357 ~CWindowClassUnregisterScope() {CleanUp();}
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358 };
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359
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360
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361 // CWindowRegisteredT
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362 // Minimalistic wrapper for registering own window classes that can be created by class name, included in dialogs and such.
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363 // Usage:
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364 // class myClass : public CWindowRegisteredT<myClass> {...};
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365 // Call myClass::Register() before first use
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366 template<typename TClass, typename TBaseClass = CWindow>
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367 class CWindowRegisteredT : public TBaseClass, public CMessageMap {
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368 public:
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369 static UINT GetClassStyle() {
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370 return CS_VREDRAW | CS_HREDRAW;
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371 }
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372 static HCURSOR GetCursor() {
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373 return ::LoadCursor(NULL, IDC_ARROW);
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374 }
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375
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376 BEGIN_MSG_MAP_EX(CWindowRegisteredT)
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377 END_MSG_MAP()
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378
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379
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380 static void Register() {
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381 static CWindowClassUnregisterScope scope;
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382 if (!scope.IsActive()) {
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383 WNDCLASS wc = {};
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384 wc.style = TClass::GetClassStyle();
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385 wc.cbWndExtra = sizeof(void*);
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386 wc.lpszClassName = TClass::GetClassName();
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387 wc.lpfnWndProc = myWindowProc;
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388 wc.hInstance = (HINSTANCE)&__ImageBase;
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389 wc.hCursor = TClass::GetCursor();
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390 ATLASSERT_SUCCESS( RegisterClass(&wc) != 0 );
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391 scope.Set(wc.lpszClassName);
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392 }
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393 }
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394 protected:
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395 virtual ~CWindowRegisteredT() {}
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396 private:
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397 static LRESULT CALLBACK myWindowProc(HWND wnd, UINT msg, WPARAM wp, LPARAM lp) {
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398 TClass * i = NULL;
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399 if (msg == WM_NCCREATE) {
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400 i = new TClass;
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401 i->Attach(wnd);
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402 ::SetWindowLongPtr(wnd, 0, reinterpret_cast<LONG_PTR>(i));
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403 } else {
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404 i = reinterpret_cast<TClass*>( ::GetWindowLongPtr(wnd, 0) );
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405 }
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406 LRESULT r;
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407 if (i == NULL || !i->ProcessWindowMessage(wnd, msg, wp, lp, r)) r = ::DefWindowProc(wnd, msg, wp, lp);
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408 if (msg == WM_NCDESTROY) {
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409 ::SetWindowLongPtr(wnd, 0, 0);
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410 delete i;
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411 }
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412 return r;
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413 }
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414 };
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415
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416
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417
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418
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419 class CSRWlock {
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420 public:
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421 CSRWlock() { }
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422
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423 static bool HaveAPI() { return true; }
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424
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425 void EnterShared() {
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426 AcquireSRWLockShared( & theLock );
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427 }
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428 void EnterExclusive() {
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429 AcquireSRWLockExclusive( & theLock );
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430 }
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431 void LeaveShared() {
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432 ReleaseSRWLockShared( & theLock );
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433 }
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434 void LeaveExclusive() {
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435 ReleaseSRWLockExclusive( &theLock );
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436 }
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437
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438 private:
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439 CSRWlock(const CSRWlock&) = delete;
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440 void operator=(const CSRWlock&) = delete;
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441
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442 SRWLOCK theLock = {};
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|
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443 };
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