{"id":638,"date":"2009-09-22T12:35:00","date_gmt":"2009-09-22T04:35:00","guid":{"rendered":""},"modified":"2013-11-17T17:13:27","modified_gmt":"2013-11-17T09:13:27","slug":"opengl%e6%95%99%e7%a8%8bdelphi%e7%89%881-%e5%9f%ba%e6%9c%ac%e6%a1%86%e6%9e%b6","status":"publish","type":"post","link":"https:\/\/kyle.ai\/blog\/638.html","title":{"rendered":"openGL\u6559\u7a0bdelphi\u7248(1)&#8212;-\u57fa\u672c\u6846\u67b6"},"content":{"rendered":"<pre class=\"brush: delphi; title: ; notranslate\" title=\"\">\r\nProgram Project1;\r\n\r\nUses\r\n   opengl,\r\n   windows,\r\n   Messages;\r\n\r\nConst\r\n   WND_TITLE        = 'OPenGl \u57fa\u672c\u6846\u67b6'; \/\/\u6807\u9898\r\nVar\r\n   \/\/===========================================================================\r\n   \/\/ \u6bcf\u4e00\u4e2aOpenGL\u90fd\u88ab\u8fde\u63a5\u5230\u4e00\u4e2a\u7740\u8272\u63cf\u8ff0\u8868\u4e0a\u3002\u7740\u8272\u63cf\u8ff0\u8868\u5c06\u6240\u6709\u7684OpenGL\u8c03\u7528\u547d\u4ee4\u8fde\r\n   \/\/ \u63a5\u5230Device Context(\u8bbe\u5907\u63cf\u8ff0\u8868)\u4e0a,\u5c06OpenGL\u7684\u7740\u8272\u63cf\u8ff0\u8868\u5b9a\u4e49\u4e3ahRC ,\u8981\u8ba9\u7a0b\u5e8f\u80fd\r\n   \/\/ \u591f\u7ed8\u5236\u7a97\u53e3\u7684\u8bdd\uff0c\u8fd8\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u8bbe\u5907\u63cf\u8ff0\u8868\uff0cWindows\u7684\u8bbe\u5907\u63cf\u8ff0\u8868\u88ab\u5b9a\u4e49\u4e3a hDC,\r\n   \/\/ DC\u5c06\u7a97\u53e3\u8fde\u63a5\u5230GDI(Graphics Device Interface\u56fe\u5f62\u8bbe\u5907\u63a5\u53e3)\u3002\u800cRC\u5c06OpenGL\u8fde\u63a5\r\n   \/\/ \u5230DC\u3002\r\n   \/\/===========================================================================\r\n   h_RC             : HGLRC;            \/\/ Rendering Context(\u7740\u8272\u63cf\u8ff0\u8868)\u3002\r\n   h_DC             : HDC;              \/\/ Device Context(\u8bbe\u5907\u63cf\u8ff0\u8868)\r\n   h_Wnd            : HWND;             \/\/ \u7a97\u53e3\u53e5\u67c4\r\n   h_Instance       : HINST;            \/\/ \u7a0b\u5e8fInstance(\u5b9e\u4f8b)\u3002\r\n   keys             : Array&#x5B;0..255] Of Boolean; \/\/ \u7528\u4e8e\u952e\u76d8\u4f8b\u7a0b\u7684\u6570\u7ec4\r\n   {$R *.res}\r\n\r\n   \/\/==============================================================================\r\n   \/\/\u91cd\u65b0\u8bbe\u7f6eOpenGL\u573a\u666f\u7684\u5927\u5c0f\uff0c\u800c\u4e0d\u7ba1\u7a97\u53e3\u7684\u5927\u5c0f\u662f\u5426\u5df2\u7ecf\u6539\u53d8(\u5047\u5b9a\u6ca1\u6709\u4f7f\u7528\u5168\u5c4f\u6a21\u5f0f)\u3002\r\n   \/\/\u751a\u81f3\u65e0\u6cd5\u6539\u53d8\u7a97\u53e3\u7684\u5927\u5c0f\u65f6(\u4f8b\u5982\u5728\u5168\u5c4f\u6a21\u5f0f\u4e0b)\uff0c\u5b83\u81f3\u5c11\u4ecd\u5c06\u8fd0\u884c\u4e00\u6b21\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\r\n   \/\/\u5728\u7a0b\u5e8f\u5f00\u59cb\u65f6\u8bbe\u7f6e\u900f\u89c6\u56fe\u3002OpenGL\u573a\u666f\u7684\u5c3a\u5bf8\u5c06\u88ab\u8bbe\u7f6e\u6210\u5b83\u663e\u793a\u65f6\u6240\u5728\u7a97\u53e3\u7684\u5927\u5c0f\u3002\r\n   \/\/==============================================================================\r\n\r\nProcedure glResizeWnd(Width, Height: Integer); \/\/ \u91cd\u7f6e\u5e76\u521d\u59cb\u5316GL\u7a97\u53e3\u5927\u5c0f\r\nBegin\r\n   If (Height = 0) Then                 \/\/ \u9632\u6b62\u9ad8\u5ea6\u4e3a0\uff0c\u4ea7\u751f\u96640\u5f02\u5e38\r\n      Height := 1;\r\n   glViewport(0, 0, Width, Height);     \/\/ \u91cd\u7f6e\u5f53\u524d\u7684\u89c6\u53e3(Viewport)\r\n\r\n   \/\/\u4e0b\u9762\u51e0\u884c\u4e3a\u900f\u89c6\u56fe\u8bbe\u7f6e\u5c4f\u5e55\u3002\u610f\u5473\u7740\u8d8a\u8fdc\u7684\u4e1c\u897f\u770b\u8d77\u6765\u8d8a\u5c0f\u3002\u8fd9\u4e48\u505a\u521b\u5efa\u4e86\u4e00\u4e2a\u73b0\u5b9e\r\n   \/\/\u5916\u89c2\u7684\u573a\u666f\u3002\u6b64\u5904\u900f\u89c6\u6309\u7167\u57fa\u4e8e\u7a97\u53e3\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u768445\u5ea6\u89c6\u89d2\u6765\u8ba1\u7b97\u30020.1f\uff0c100.0f\u662f\r\n   \/\/\u6211\u4eec\u5728\u573a\u666f\u4e2d\u6240\u80fd\u7ed8\u5236\u6df1\u5ea6\u7684\u8d77\u70b9\u548c\u7ec8\u70b9\u3002\r\n   \/\/glMatrixMode(GL_PROJECTION)\u6307\u660e\u63a5\u4e0b\u6765\u7684\u4e24\u884c\u4ee3\u7801\u5c06\u5f71\u54cdprojection matrix(\u6295\u5f71\u77e9\u9635)\u3002\r\n   \/\/\u6295\u5f71\u77e9\u9635\u8d1f\u8d23\u4e3a\u6211\u4eec\u7684\u573a\u666f\u589e\u52a0\u900f\u89c6\u3002\r\n   \/\/glLoadIdentity()\u8fd1\u4f3c\u4e8e\u91cd\u7f6e\u3002\u5b83\u5c06\u6240\u9009\u7684\u77e9\u9635\u72b6\u6001\u6062\u590d\u6210\u5176\u539f\u59cb\u72b6\u6001\u3002\r\n   \/\/\u8c03\u7528 glLoadIdentity()\u4e4b\u540e\u6211\u4eec\u4e3a\u573a\u666f\u8bbe\u7f6e\u900f\u89c6\u56fe\u3002\r\n\r\n   glMatrixMode(GL_PROJECTION);         \/\/ \u9009\u62e9\u6295\u5f71\u77e9\u9635\r\n   glLoadIdentity();                    \/\/ \u91cd\u7f6e\u6295\u5f71\u77e9\u9635\r\n\r\n   gluPerspective(45.0, Width \/ Height, 0.1, 100.0); \/\/ \u8ba1\u7b97\u7a97\u53e3\u7684\u5916\u89c2\u6bd4\u4f8b\r\n\r\n   \/\/glMatrixMode(GL_MODELVIEW)\u6307\u660e\u4efb\u4f55\u65b0\u7684\u53d8\u6362\u5c06\u4f1a\u5f71\u54cd modelview matrix(\u6a21\u578b\u89c2\u5bdf\u77e9\u9635)\u3002\r\n   \/\/\u6a21\u578b\u89c2\u5bdf\u77e9\u9635\u4e2d\u5b58\u653e\u4e86\u6211\u4eec\u7684\u7269\u4f53\u8baf\u606f\u3002\r\n\r\n   glMatrixMode(GL_MODELVIEW);          \/\/ \u9009\u62e9\u6a21\u578b\u89c2\u5bdf\u77e9\u9635\r\n   glLoadIdentity();                    \/\/ \u91cd\u7f6e\u6a21\u578b\u89c2\u5bdf\u77e9\u9635\r\n\r\n   \/\/\u5982\u679c\u73b0\u5728\u8fd8\u4e0d\u80fd\u7406\u89e3\u8fd9\u4e9b\u672f\u8bed\u7684\u542b\u4e49\uff0c\u8bf7\u522b\u7740\u6025\u3002\r\n   \/\/\u53ea\u8981\u77e5\u9053\u5982\u679c\u60f3\u83b7\u5f97\u4e00\u4e2a\u7cbe\u5f69\u7684\u900f\u89c6\u573a\u666f\u7684\u8bdd\uff0c\u5fc5\u987b\u8fd9\u4e48\u505a\u3002\r\nEnd;\r\n\r\n\/\/==============================================================================\r\n\/\/ \u5bf9OpenGL\u8fdb\u884c\u6240\u6709\u7684\u8bbe\u7f6e\u3002\u5c06\u8bbe\u7f6e\u6e05\u9664\u5c4f\u5e55\u6240\u7528\u7684\u989c\u8272\uff0c\u6253\u5f00\u6df1\u5ea6\u7f13\u5b58\uff0c\r\n\/\/ \u542f\u7528smooth shading(\u9634\u5f71\u5e73\u6ed1)\uff0c\u7b49\u7b49\u3002\u8fd9\u4e2a\u4f8b\u7a0b\u76f4\u5230OpenGL\u7a97\u53e3\u521b\u5efa\u4e4b\u540e\u624d\u4f1a\u88ab\u8c03\u7528\u3002\r\n\/\/ \u6b64\u8fc7\u7a0b\u5c06\u6709\u8fd4\u56de\u503c\u3002\u4f46\u6b64\u5904\u7684\u521d\u59cb\u5316\u6ca1\u90a3\u4e48\u590d\u6742\uff0c\u73b0\u5728\u8fd8\u7528\u4e0d\u7740\u62c5\u5fc3\u8fd9\u4e2a\u8fd4\u56de\u503c\u3002\r\n\/\/==============================================================================\r\n\r\nProcedure glInit();\r\nBegin\r\n\r\n   \/\/\u8bbe\u7f6e\u6e05\u9664\u5c4f\u5e55\u65f6\u6240\u7528\u7684\u989c\u8272\u3002\u5982\u679c\u5bf9\u8272\u5f69\u7684\u5de5\u4f5c\u539f\u7406\u4e0d\u6e05\u695a\u7684\u8bdd\uff0c\u5feb\u901f\u89e3\u91ca\u4e00\u4e0b\u3002\r\n   \/\/\u8272\u5f69\u503c\u7684\u8303\u56f4\u4ece0.0f\u52301.0f\u30020.0f\u4ee3\u8868\u6700\u9ed1\u7684\u60c5\u51b5\uff0c1.0f\u5c31\u662f\u6700\u4eae\u7684\u60c5\u51b5\u3002\r\n   \/\/glClearColor \u540e\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662fRed Intensity(\u7ea2\u8272\u5206\u91cf),\u7b2c\u4e8c\u4e2a\u662f\u7eff\u8272\uff0c\u7b2c\u4e09\u4e2a\u662f\u84dd\u8272\u3002\r\n   \/\/\u6700\u5927\u503c\u4e5f\u662f1.0f\uff0c\u4ee3\u8868\u7279\u5b9a\u989c\u8272\u5206\u91cf\u7684\u6700\u4eae\u60c5\u51b5\u3002\u6700\u540e\u4e00\u4e2a\u53c2\u6570\u662fAlpha\u503c\u3002\r\n   \/\/\u5f53\u5b83\u7528\u6765\u6e05\u9664\u5c4f\u5e55\u7684\u65f6\u5019\uff0c\u4e0d\u7528\u5173\u5fc3\u7b2c\u56db\u4e2a\u6570\u5b57\u3002\u73b0\u5728\u8ba9\u5b83\u4e3a0.0f\u3002\r\n   \/\/\u901a\u8fc7\u6df7\u5408\u4e09\u79cd\u539f\u8272(\u7ea2\u3001\u7eff\u3001\u84dd)\uff0c\u53ef\u4ee5\u5f97\u5230\u4e0d\u540c\u7684\u8272\u5f69\r\n   \/\/\u56e0\u6b64\uff0c\u4f7f\u7528glClearColor(0.0f,0.0f,1.0f,0.0f)\uff0c\u60a8\u84dd\u8272\u6765\u6e05\u9664\u5c4f\u5e55\u3002\r\n   \/\/\u5982\u679c\u7528 glClearColor(0.5f,0.0f,0.0f,0.0f)\u7684\u8bdd\uff0c\u5c06\u4f7f\u7528\u4e2d\u7ea2\u8272\u6765\u6e05\u9664\u5c4f\u5e55\u3002\r\n   \/\/\u4e0d\u662f\u6700\u4eae(1.0f)\uff0c\u4e5f\u4e0d\u662f\u6700\u6697 (0.0f)\u3002\u8981\u5f97\u5230\u767d\u8272\u80cc\u666f\uff0c\u5e94\u8be5\u5c06\u6240\u6709\u7684\u989c\u8272\u8bbe\u6210\u6700\u4eae(1.0f)\u3002\r\n   \/\/\u8981\u9ed1\u8272\u80cc\u666f\u7684\u8bdd\uff0c\u8be5\u5c06\u6240\u6709\u7684\u989c\u8272\u8bbe\u4e3a\u6700\u6697(0.0f)\u3002\r\n\r\n   glClearColor(0.0, 0.0, 0.0, 0.0);    \/\/ \u9ed1\u8272\u80cc\u666f\r\n\r\n   \/\/\u9634\u5f71\u5e73\u6ed1\u901a\u8fc7\u591a\u8fb9\u5f62\u7cbe\u7ec6\u7684\u6df7\u5408\u8272\u5f69\uff0c\u5e76\u5bf9\u5916\u90e8\u5149\u8fdb\u884c\u5e73\u6ed1\u3002\r\n\r\n   glShadeModel(GL_SMOOTH);             \/\/ \u542f\u7528\u9634\u5f71\u5e73\u6ed1\r\n\r\n   \/\/\u63a5\u4e0b\u6765\u5fc5\u987b\u505a\u7684\u662f\u5173\u4e8edepth buffer(\u6df1\u5ea6\u7f13\u5b58)\u7684\u3002\u5c06\u6df1\u5ea6\u7f13\u5b58\u8bbe\u60f3\u4e3a\u5c4f\u5e55\u540e\u9762\u7684\u5c42\u3002\r\n   \/\/\u6df1\u5ea6\u7f13\u5b58\u4e0d\u65ad\u7684\u5bf9\u7269\u4f53\u8fdb\u5165\u5c4f\u5e55\u5185\u90e8\u6709\u591a\u6df1\u8fdb\u884c\u8ddf\u8e2a\u3002\u672c\u7a0b\u5e8f\u5176\u5b9e\u6ca1\u6709\u771f\u6b63\u4f7f\u7528\u6df1\u5ea6\u7f13\u5b58\uff0c\r\n   \/\/\u4f46\u51e0\u4e4e\u6240\u6709\u5728\u5c4f\u5e55\u4e0a\u663e\u793a3D\u573a\u666fOpenGL\u7a0b\u5e8f\u90fd\u4f7f\u7528\u6df1\u5ea6\u7f13\u5b58\u3002\u5b83\u7684\u6392\u5e8f\u51b3\u5b9a\u90a3\u4e2a\u7269\u4f53\u5148\u753b\u3002\r\n   \/\/\u8fd9\u6837\u60a8\u5c31\u4e0d\u4f1a\u5c06\u4e00\u4e2a\u5706\u5f62\u540e\u9762\u7684\u6b63\u65b9\u5f62\u753b\u5230\u5706\u5f62\u4e0a\u6765\u3002\u6df1\u5ea6\u7f13\u5b58\u662fOpenGL\u5341\u5206\u91cd\u8981\u7684\u90e8\u5206\u3002\r\n\r\n   glClearDepth(1.0);                   \/\/ \u8bbe\u7f6e\u6df1\u5ea6\u7f13\u5b58\r\n   glEnable(GL_DEPTH_TEST);             \/\/ \u542f\u7528\u6df1\u5ea6\u6d4b\u8bd5\r\n   glDepthFunc(GL_LESS);                \/\/ \u6240\u4f5c\u6df1\u5ea6\u6d4b\u8bd5\u7684\u7c7b\u578b\r\n\r\n   \/\/\u63a5\u7740\u544a\u8bc9OpenGL\u6211\u4eec\u5e0c\u671b\u8fdb\u884c\u6700\u597d\u7684\u900f\u89c6\u4fee\u6b63\u3002\r\n   \/\/\u8fd9\u4f1a\u5341\u5206\u8f7b\u5fae\u7684\u5f71\u54cd\u6027\u80fd\u3002\u4f46\u4f7f\u5f97\u900f\u89c6\u56fe\u770b\u8d77\u6765\u597d\u4e00\u70b9\u3002\r\n\r\n   glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); \/\/ \u771f\u6b63\u7cbe\u7ec6\u7684\u900f\u89c6\u4fee\u6b63\r\n\r\nEnd;\r\n\r\n\/\/==============================================================================\r\n\/\/\u6240\u6709\u7684\u7ed8\u56fe\u4ee3\u7801\u3002\u4efb\u4f55\u60a8\u6240\u60f3\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u7684\u4e1c\u4e1c\u90fd\u5c06\u5728\u6b64\u6bb5\u4ee3\u7801\u4e2d\u51fa\u73b0\u3002\r\n\/\/\u4ee5\u540e\u7684\u6bcf\u4e2a\u7a0b\u5e8f\u4f1a\u5728\u6b64\u5904\u589e\u52a0\u65b0\u7684\u4ee3\u7801\u3002\r\n\/\/==============================================================================\r\n\r\nProcedure glDraw();\r\nBegin\r\n   glClear(GL_COLOR_BUFFER_BIT Or GL_DEPTH_BUFFER_BIT); \/\/ \u6e05\u9664\u5c4f\u5e55\u548c\u6df1\u5ea6\u7f13\u5b58\r\n   glLoadIdentity();                    \/\/ \u91cd\u7f6e\u5f53\u524d\u7684\u6a21\u578b\u89c2\u5bdf\u77e9\u9635\r\nEnd;\r\n\r\nFunction WndProc(hWnd: HWND;            \/\/ \u7a97\u53e3\u7684\u53e5\u67c4\r\n   Msg: UINT;                           \/\/ \u7a97\u53e3\u7684\u6d88\u606f\r\n   wParam: WPARAM;                      \/\/ \u9644\u52a0\u7684\u6d88\u606f\u5185\u5bb9\r\n   lParam: LPARAM                       \/\/ \u9644\u52a0\u7684\u6d88\u606f\u5185\u5bb9\r\n   ): LRESULT; stdcall;\r\nBegin\r\n   Result := 0;\r\n   Case (Msg) Of                        \/\/ \u68c0\u67e5Windows\u6d88\u606f\r\n      WM_ACTIVATE:                      \/\/ \u76d1\u89c6\u7a97\u53e3\u6fc0\u6d3b\u6d88\u606f\r\n         Begin\r\n         End;\r\n      WM_CREATE:                        \/\/ \u521b\u5efa\r\n         Begin\r\n         End;\r\n      WM_CLOSE:                         \/\/ \u5173\u95ed\r\n         Begin\r\n            PostQuitMessage(0);         \/\/ \u53d1\u51fa\u9000\u51fa\u6d88\u606f\r\n            Result := 0\r\n         End;\r\n      WM_KEYDOWN:                       \/\/ \u6309\u952e\u6309\u4e0b\r\n         Begin\r\n            keys&#x5B;wParam] := True;       \/\/ \u5982\u679c\u662f\uff0c\u8bbe\u4e3aTRUE\r\n            Result := 0;\r\n         End;\r\n      WM_KEYUP:                         \/\/ \u6309\u952e\u677e\u5f00\r\n         Begin\r\n            keys&#x5B;wParam] := False;      \/\/ \u5982\u679c\u662f\uff0c\u8bbe\u4e3aFALSE\r\n            Result := 0;\r\n         End;\r\n      WM_SIZE:                          \/\/\u8c03\u6574OpenGL\u7a97\u53e3\u5927\u5c0f\r\n         Begin\r\n            glResizeWnd(LOWORD(lParam), HIWORD(lParam));  \/\/LoWord=Width,HiWord=Height\r\n            Result := 0;\r\n         End;\r\n      WM_TIMER:                         \/\/timers\r\n         Begin\r\n         End;\r\n      Else                              \/\/\u5176\u4f59\u7684\u8ba9Windows\u81ea\u884c\u5904\u7406\u3002\r\n         Result := DefWindowProc(hWnd, Msg, wParam, lParam);  \/\/\u5411DefWindowProc\u4f20\u9012\u6240\u6709\u672a\u5904\u7406\u7684\u6d88\u606f\u3002\r\n   End;\r\nEnd;\r\n\/\/==============================================================================\r\n\/\/ \u53ea\u5728\u7a0b\u5e8f\u9000\u51fa\u4e4b\u524d\u8c03\u7528\u3002\u4f5c\u7528\u662f\u4f9d\u6b21\u91ca\u653e\u7740\u8272\u63cf\u8ff0\u8868\uff0c\u8bbe\u5907\u63cf\u8ff0\u8868\u548c\u7a97\u53e3\u53e5\u67c4\u3002\r\n\/\/ \u52a0\u5165\u4e86\u8bb8\u591a\u9519\u8bef\u68c0\u67e5\u3002\u5982\u679c\u7a0b\u5e8f\u65e0\u6cd5\u9500\u6bc1\u7a97\u53e3\u7684\u4efb\u610f\u90e8\u5206\uff0c\u90fd\u4f1a\u5f39\u51fa\u5e26\u76f8\u5e94\u9519\u8bef\u6d88\u606f\u7684\r\n\/\/ \u8baf\u606f\u7a97\u53e3\uff0c\r\n\/\/==============================================================================\r\n\r\nProcedure glKillWnd(Fullscreen: Boolean);\r\nBegin\r\n\r\n   \/\/\u5728KillGLWindow()\u4e2d\u6240\u4f5c\u7684\u7b2c\u4e00\u4ef6\u4e8b\u662f\u68c0\u67e5\u662f\u5426\u5904\u4e8e\u5168\u5c4f\u6a21\u5f0f\u3002\r\n   \/\/\u5982\u679c\u662f\uff0c\u8981\u5207\u6362\u56de\u684c\u9762\u3002\u672c\u5e94\u5728\u7981\u7528\u5168\u5c4f\u6a21\u5f0f\u524d\u5148\u9500\u6bc1\u7a97\u53e3\uff0c\r\n   \/\/\u4f46\u5728\u67d0\u4e9b\u663e\u5361\u4e0a\u8fd9\u4e48\u505a\u53ef\u80fd\u4f1a\u4f7f\u5f97\u684c\u9762\u5d29\u6e83\u3002\u6240\u4ee5\u8fd8\u662f\u5148\u7981\u7528\u5168\u5c4f\u6a21\u5f0f\u3002\r\n   \/\/\u8fd9\u5c06\u9632\u6b62\u684c\u9762\u51fa\u73b0\u5d29\u6e83\uff0c\u5e76\u5728Nvidia\u548c3dfx\u663e\u5361\u4e0a\u90fd\u5de5\u4f5c\u7684\u5f88\u597d\uff01\r\n\r\n   If Fullscreen Then                   \/\/ \u5904\u4e8e\u5168\u5c4f\u6a21\u5f0f\u5417?\r\n      Begin\r\n         \/\/  \u4f7f\u7528ChangeDisplaySettings(NULL,0)\u56de\u5230\u539f\u59cb\u684c\u9762\u3002\r\n         \/\/  \u5c06NULL\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\uff0c\r\n         \/\/  0\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f20\u9012\u5f3a\u5236Windows\u4f7f\u7528\u5f53\u524d\u5b58\u653e\u5728\u6ce8\u518c\u8868\u4e2d\u7684\u503c\r\n         \/\/  (\u7f3a\u7701\u7684\u5206\u8fa8\u7387\u3001\u8272\u5f69\u6df1\u5ea6\u3001\u5237\u65b0\u9891\u7387\uff0c\u7b49\u7b49)\u6765\u6709\u6548\u7684\u6062\u590d\u6211\u539f\u59cb\u684c\u9762\u3002\r\n         \/\/  \u6362\u56de\u684c\u9762\u540e\uff0c\u8fd8\u8981\u4f7f\u5f97\u9f20\u6807\u6307\u9488\u91cd\u65b0\u53ef\u89c1\u3002\r\n\r\n         ChangeDisplaySettings(devmode(Nil^), 0); \/\/ \u662f\u7684\u8bdd\uff0c\u5207\u6362\u56de\u684c\u9762\r\n         ShowCursor(True);              \/\/\u663e\u793a\u9f20\u6807\r\n      End;\r\n\r\n   \/\/\u662f\u5426\u62e5\u6709\u7740\u8272\u63cf\u8ff0\u8868(hRC)\u3002\r\n   If h_RC &gt; 0 Then\r\n      \/\/\u770b\u6211\u4eec\u80fd\u5426\u91ca\u653e\u5b83(\u5c06 hRC\u4ecehDC\u5206\u5f00)\u3002\r\n      If (Not wglMakeCurrent(h_DC, 0)) Then\r\n         MessageBox(0, 'DC\u548cRC\u65e0\u6cd5\u88ab\u91ca\u653e!', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n\r\n   \/\/ \u80fd\u5426\u5220\u9664\u7740\u8272\u63cf\u8ff0\u8868\r\n   If (Not wglDeleteContext(h_RC)) Then\r\n      Begin\r\n         MessageBox(0, '\u5220\u9664\u7740\u8272\u63cf\u8ff0\u8868\u5931\u8d25!', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n         h_RC := 0;\r\n      End;\r\n\r\n   \/\/\u662f\u5426\u5b58\u5728\u8bbe\u5907\u63cf\u8ff0\u8868\uff0c\u5982\u679c\u6709\u5c1d\u8bd5\u91ca\u653e\u5b83\u3002\r\n   If ((h_DC &gt; 0) And (ReleaseDC(h_Wnd, h_DC) = 0)) Then\r\n      Begin\r\n         MessageBox(0, '\u91ca\u653e\u8bbe\u5907\u63cf\u8ff0\u8868\u5931\u8d25!', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n         h_DC := 0;\r\n      End;\r\n\r\n   \/\/\u662f\u5426\u5b58\u5728\u7a97\u53e3\u53e5\u67c4\uff0c\u8c03\u7528 DestroyWindow( hWnd )\u6765\u5c1d\u8bd5\u9500\u6bc1\u7a97\u53e3\r\n   If ((h_Wnd &lt;&gt; 0) And (Not DestroyWindow(h_Wnd))) Then\r\n      Begin\r\n         MessageBox(0, '\u65e0\u6cd5\u9500\u6bc1\u7a97\u4f53!', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n         h_Wnd := 0;\r\n      End;\r\n\r\n   \/\/ \u6ce8\u9500\u7a97\u53e3\u7c7b\r\n   \/\/\u8fd9\u5141\u8bb8\u6211\u4eec\u6b63\u5e38\u9500\u6bc1\u7a97\u53e3\uff0c\u63a5\u7740\u5728\u6253\u5f00\u5176\u4ed6\u7a97\u53e3\u65f6\uff0c\r\n   \/\/\u4e0d\u4f1a\u6536\u5230\u8bf8\u5982&quot;Windows Class already registered&quot;(\u7a97\u53e3\u7c7b\u5df2\u6ce8\u518c)\u7684\u9519\u8bef\u6d88\u606f\u3002\r\n   If (Not UnRegisterClass('OpenGL', hInstance)) Then\r\n      Begin\r\n         MessageBox(0, '\u65e0\u6cd5\u6ce8\u9500\u7a97\u53e3\u7c7b!', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n         hInstance := 0;\r\n      End;\r\nEnd;\r\n\r\n\/\/==============================================================================\r\n\/\/ \u521b\u5efaOpenGL\u7a97\u53e3,\r\n\/\/ \u5e26\u67095\u4e2a\u53c2\u6570\uff1a\u7a97\u53e3\u7684\u6807\u9898\u680f\uff0c\u7a97\u53e3\u7684\u5bbd\u5ea6\uff0c\u7a97\u53e3\u7684\u9ad8\u5ea6\uff0c\u8272\u5f69\u4f4d\u6570(16\/24\/32)\uff0c\r\n\/\/ \u5168\u5c4f\u6807\u5fd7(TRUE --\u5168\u5c4f\u6a21\u5f0f\uff0c FALSE--\u7a97\u53e3\u6a21\u5f0f )\u3002\r\n\/\/ \u8fd4\u56de\u7684\u5e03\u5c14\u503c \u7a97\u53e3\u662f\u5426\u6210\u529f\u521b\u5efa\u3002\r\n\/\/==============================================================================\r\n\r\nFunction glCreateWnd(Width, Height: Integer; Fullscreen: Boolean; PixelDepth:\r\n   Integer): Boolean;\r\nVar\r\n   wndClass         : TWndClass;        \/\/ \u7a97\u53e3\u7c7b\r\n   dwStyle          : DWORD;            \/\/ \u7a97\u53e3\u98ce\u683c\r\n   dwExStyle        : DWORD;            \/\/ \u6269\u5c55\u7a97\u53e3\u98ce\u683c\r\n   PixelFormat      : GLuint;           \/\/ \u8c61\u7d20\u683c\u5f0f\r\n   h_Instance       : HINST;            \/\/ \u5f53\u524d\u5b9e\u4f8b\r\n   dmScreenSettings : DEVMODE;          \/\/ \u8bbe\u5907\u6a21\u5f0f\r\n   pfd              : TPIXELFORMATDESCRIPTOR; \/\/\u683c\u5f0f\u63cf\u8ff0\u7b26\r\n\r\nBegin\r\n   h_Instance := GetModuleHandle(Nil);  \/\/ \u53d6\u5f97\u7a97\u53e3\u7684\u5b9e\u4f8b\r\n   ZeroMemory(@wndClass, SizeOf(wndClass)); \/\/ \u521d\u59cb\u5316\u5185\u5b58\r\n   With wndClass Do                     \/\/ \u8bbe\u7f6e\u7a97\u53e3\u7c7b\r\n      Begin\r\n         style := CS_HREDRAW Or         \/\/ \u5982\u679c\u957f\u5ea6\u53d8\u5316\uff0c\r\n         CS_VREDRAW Or                  \/\/ \u5982\u679c\u9ad8\u5ea6\u53d8\u5316\uff0c\u5c31\u662f\u53ea\u8981\u53d8\u5316\u5c31\u5f3a\u5236\u91cd\u753b\r\n         CS_OWNDC; \/\/CS_OWNDC\u4e3a\u7a97\u53e3\u521b\u5efa\u4e00\u4e2a\u79c1\u6709\u7684DC\u3002\u8fd9\u610f\u5473\u7740DC\u4e0d\u80fd\u5728\u7a0b\u5e8f\u95f4\u5171\u4eab\u3002\r\n         lpfnWndProc := @WndProc;       \/\/ WndProc\u5904\u7406\u6d88\u606f\r\n         \/\/ cbClsExtra := 0;               \/\/ \u65e0\u989d\u5916\u7a97\u53e3\u6570\u636e\r\n         \/\/ cbWndExtra := 0;               \/\/ \u65e0\u989d\u5916\u7a97\u53e3\u6570\u636e\r\n         hInstance := h_Instance;       \/\/ \u8bbe\u7f6e\u5b9e\u4f8b\r\n         \/\/hIcon := LoadIcon(0, IDI_WINLOGO); \/\/ \u88c5\u5165\u7f3a\u7701\u56fe\u6807\r\n         hCursor := LoadCursor(0, IDC_ARROW); \/\/\u8f7d\u5165\u9f20\u6807\u6307\u9488\r\n         \/\/hbrBackground := 0;            \/\/ GL\u4e0d\u9700\u8981\u80cc\u666f\r\n         \/\/lpszMenuName := '';            \/\/ \u4e0d\u9700\u8981\u83dc\u5355\r\n         lpszClassName := 'OpenGL';     \/\/\u8bbe\u5b9a\u7c7b\u540d\r\n      End;\r\n   If (RegisterClass(wndClass) = 0) Then \/\/ \u6ce8\u518c\u7a97\u4f53\u7c7b\r\n      Begin\r\n         MessageBox(0, '\u6ce8\u518c\u7a97\u4f53\u7c7b\u5931\u8d25!', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n         Result := False;\r\n         Exit\r\n      End;\r\n\r\n   \/\/ \u5982\u679c\u9700\u8981\u5168\u5c4f\u7684\u8bdd\r\n   If Fullscreen Then\r\n      Begin\r\n         ZeroMemory(@dmScreenSettings, SizeOf(dmScreenSettings)); \/\/ \u786e\u4fdd\u5185\u5b58\u5206\u914d\r\n         With dmScreenSettings Do\r\n            Begin                       \/\/ \u8bbe\u7f6e\u5c4f\u5e55\u8bbe\u7f6e\u7684\u53c2\u6570\r\n               dmSize := SizeOf(dmScreenSettings); \/\/ Devmode \u7ed3\u6784\u7684\u5927\u5c0f\r\n               dmPelsWidth := Width;    \/\/ \u6240\u9009\u5c4f\u5e55\u5bbd\u5ea6\r\n               dmPelsHeight := Height;  \/\/ \u6240\u9009\u5c4f\u5e55\u9ad8\u5ea6\r\n               dmBitsPerPel := PixelDepth; \/\/ \u6bcf\u8c61\u7d20\u6240\u9009\u7684\u8272\u5f69\u6df1\u5ea6\r\n               dmFields := DM_PELSWIDTH \/\/ \u8bbe\u7f6e\u521d\u59cb\u6807\u5fd7\u4e3admPelsWidth\r\n               Or DM_PELSHEIGHT         \/\/ dmPelsHeight \u548c\r\n               Or DM_BITSPERPEL;        \/\/ dmBitsPerPel\r\n            End;\r\n\r\n         \/\/ \u8f6c\u6362\u4e3a\u5168\u5c4f\u6a21\u5f0f ,\r\n         \/\/\u5207\u6362\u6210\u4e0edmScreenSettings\u6240\u5339\u914d\u6a21\u5f0f\u3002\r\n         \/\/CDS_FULLSCREEN \u79fb\u53bb\u4e86\u72b6\u6001\u6761\u3002\r\n         \/\/\u5e76\u4fdd\u8bc1\u5728\u6765\u56de\u5207\u6362\u65f6\uff0c\u6ca1\u6709\u79fb\u52a8\u6216\u6539\u53d8\u60a8\u5728\u684c\u9762\u4e0a\u7684\u7a97\u53e3\u3002\r\n         \/\/ \u8f6c\u6362\u4e3a\u5168\u5c4f\u6a21\u5f0f\r\n         If (ChangeDisplaySettings(dmScreenSettings, CDS_FULLSCREEN) =\r\n            DISP_CHANGE_FAILED) Then    \/\/\u8f6c\u6362\u5931\u8d25\r\n            Begin\r\n               MessageBox(0, '\u4e0d\u80fd\u8f6c\u6362\u4e3a\u5168\u5c4f\u6a21\u5f0f!', '\u9519\u8bef', MB_OK\r\n                  Or MB_ICONERROR);\r\n               Fullscreen := False;\r\n            End;\r\n      End;\r\n\r\n   If (Fullscreen) Then                 \/\/ \u4ecd\u5728\u5168\u5c4f\u6a21\u5f0f\u4e0b\r\n      Begin\r\n         dwStyle := WS_POPUP Or         \/\/ \u6ca1\u6709\u8fb9\u6846\r\n         WS_CLIPCHILDREN \/\/ \u8981\u8ba9OpenGL\u6b63\u5e38\u8fd0\u884c\uff0c\u8fd9\u4e24\u4e2a\u5c5e\u6027\u662f\u5fc5\u987b\u7684\u3002\r\n         Or WS_CLIPSIBLINGS;            \/\/\u4ed6\u4eec\u963b\u6b62\u522b\u7684\u7a97\u4f53\u5728\u6211\u4eec\u7684\u7a97\u4f53\u5185\/\u4e0a\u7ed8\u56fe\u3002\r\n         dwExStyle := WS_EX_APPWINDOW;  \/\/ \u7a97\u4f53\u53ef\u89c1\u65f6\u5904\u4e8e\u6700\u524d\u9762\r\n         ShowCursor(False);             \/\/ \u4e0d\u663e\u793a\u9f20\u6807\r\n      End\r\n   Else                                 \/\/\u5426\u5219\r\n      Begin\r\n         dwStyle := WS_OVERLAPPEDWINDOW Or  \/\/\u5e26\u6807\u9898\u680f\u3001\u53ef\u53d8\u5927\u5c0f\u7684\u8fb9\u6846\u3001\u83dc\u5355\u548c\u6700\u5927\/\u5c0f\u5316\u6309\u94ae\r\n         WS_CLIPCHILDREN Or \/\/ \u8981\u8ba9OpenGL\u6b63\u5e38\u8fd0\u884c\uff0c\u8fd9\u4e24\u4e2a\u5c5e\u6027\u662f\u5fc5\u987b\u7684\u3002\r\n         WS_CLIPSIBLINGS;               \/\/\u4ed6\u4eec\u963b\u6b62\u522b\u7684\u7a97\u4f53\u5728\u6211\u4eec\u7684\u7a97\u4f53\u5185\/\u4e0a\u7ed8\u56fe\u3002\r\n         dwExStyle := WS_EX_APPWINDOW Or \/\/ \u589e\u5f3a\u7a97\u4f53\u76843D\u611f\u89c2\r\n         WS_EX_WINDOWEDGE;              \/\/ \u8fb9\u6846\u4e3a\u51f8\u8d77\r\n         ShowCursor(false);             \/\/ \u4e0d\u663e\u793a\u9f20\u6807\r\n      End;\r\n\r\n   \/\/\u521b\u5efa\u4e00\u4e2a\u7a97\u4f53\r\n   h_Wnd := CreateWindowEx(dwExStyle,   \/\/ \u6269\u5c55\u7a97\u4f53\u98ce\u683c\r\n      'OpenGL',                         \/\/ \u7c7b\u540d\r\n      WND_TITLE,                        \/\/ \u6807\u9898\r\n      dwStyle,                          \/\/ \u7a97\u4f53\u5c5e\u6027\r\n      0, 0,                             \/\/ \u7a97\u4f53\u4f4d\u7f6e\r\n      Width, Height,                    \/\/ \u7a97\u4f53\u5927\u5c0f\r\n      0,                                \/\/ \u6ca1\u6709\u7236\u7a97\u4f53\r\n      0,                                \/\/ \u6ca1\u6709\u83dc\u5355\r\n      h_Instance,                       \/\/ \u5b9e\u4f8b\u53e5\u67c4\r\n      Nil);                             \/\/ \u4e0d\u5411WM_CREATE\u4f20\u9012\u4efb\u4f55\u4e1c\u4e1c\r\n\r\n   If h_Wnd = 0 Then                    \/\/ \u521b\u5efa\u5931\u8d25\uff0c\u9500\u6bc1\u7a97\u4f53\r\n      Begin\r\n         glKillWnd(Fullscreen);\r\n         MessageBox(0, '\u4e0d\u80fd\u521b\u5efa\u7a97\u4f53\uff01', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n         Result := False;\r\n         Exit;\r\n      End;\r\n\r\n   \/\/ \u63cf\u8ff0\u8c61\u7d20\u683c\u5f0f\r\n   \/\/\u9009\u62e9\u4e86\u901a\u8fc7RGBA(\u7ea2\u3001\u7eff\u3001\u84dd\u3001alpha\u901a\u9053)\u652f\u6301OpenGL\u548c\u53cc\u7f13\u5b58\u7684\u683c\u5f0f\u3002\r\n   \/\/\u8bd5\u56fe\u627e\u5230\u5339\u914d\u9009\u5b9a\u7684\u8272\u5f69\u6df1\u5ea6(16\u4f4d\u300124\u4f4d\u300132\u4f4d)\u7684\u8c61\u7d20\u683c\u5f0f\u3002\r\n   \/\/\u6700\u540e\u8bbe\u7f6e16\u4f4dZ-\u7f13\u5b58\u3002\r\n   \/\/\u5176\u4f59\u7684\u53c2\u6570\u8981\u4e48\u672a\u4f7f\u7528\u8981\u4e48\u4e0d\u91cd\u8981\r\n   \/\/(stencil buffer\u6a21\u677f\u7f13\u5b58\u548caccumulation buffer\u805a\u96c6\u7f13\u5b58\u9664\u5916)\u3002\r\n   With pfd Do\r\n      Begin\r\n         nSize := SizeOf(TPIXELFORMATDESCRIPTOR); \/\/ \u683c\u5f0f\u63cf\u8ff0\u7b26\u5927\u5c0f\r\n         nVersion := 1;                 \/\/ \u7248\u672c\u53f7\r\n         dwFlags := PFD_DRAW_TO_WINDOW  \/\/ \u683c\u5f0f\u5fc5\u987b\u652f\u6301\u7a97\u53e3\r\n         Or PFD_SUPPORT_OPENGL          \/\/ \u683c\u5f0f\u5fc5\u987b\u652f\u6301OpenGL\r\n         Or PFD_DOUBLEBUFFER;           \/\/ \u5fc5\u987b\u652f\u6301\u53cc\u7f13\u51b2\r\n         iPixelType := PFD_TYPE_RGBA;   \/\/ \u7533\u8bf7 RGBA \u683c\u5f0f\r\n         cColorBits := PixelDepth;      \/\/ \u9009\u5b9a\u8272\u5f69\u6df1\u5ea6\r\n         cRedBits := 0;                 \/\/ \u5ffd\u7565\u7684\u8272\u5f69\u4f4d\r\n         cRedShift := 0;                \/\/ \u5ffd\u7565\u7684\u8272\u5f69\u4f4d\r\n         cGreenBits := 0;               \/\/ \u5ffd\u7565\u7684\u8272\u5f69\u4f4d\r\n         cGreenShift := 0;              \/\/ \u5ffd\u7565\u7684\u8272\u5f69\u4f4d\r\n         cBlueBits := 0;                \/\/ \u5ffd\u7565\u7684\u8272\u5f69\u4f4d\r\n         cBlueShift := 0;               \/\/ \u5ffd\u7565\u7684\u8272\u5f69\u4f4d\r\n         cAlphaBits := 0;               \/\/ \u65e0Alpha\u7f13\u5b58\r\n         cAlphaShift := 0;              \/\/ \u5ffd\u7565Shift Bit\r\n         cAccumBits := 0;               \/\/ \u65e0\u805a\u96c6\u7f13\u5b58\r\n         cAccumRedBits := 0;            \/\/ \u5ffd\u7565\u805a\u96c6\u4f4d\r\n         cAccumGreenBits := 0;          \/\/ \u5ffd\u7565\u805a\u96c6\u4f4d\r\n         cAccumBlueBits := 0;           \/\/ \u5ffd\u7565\u805a\u96c6\u4f4d\r\n         cAccumAlphaBits := 0;          \/\/ \u5ffd\u7565\u805a\u96c6\u4f4d\r\n         cDepthBits := 16;              \/\/ 16\u4f4d Z-\u7f13\u5b58 (\u6df1\u5ea6\u7f13\u5b58)\r\n         cStencilBits := 0;             \/\/ \u65e0\u6a21\u677f\u7f13\u5b58\r\n         cAuxBuffers := 0;              \/\/ \u65e0\u8f85\u52a9\u7f13\u5b58\r\n         iLayerType := PFD_MAIN_PLANE;  \/\/ \u4e3b\u7ed8\u56fe\u5c42\r\n         bReserved := 0;                \/\/ \u4fdd\u7559\r\n         dwLayerMask := 0;              \/\/ \u5ffd\u7565\u5c42\u906e\u7f69\r\n         dwVisibleMask := 0;            \/\/ \u5ffd\u7565\u5c42\u906e\u7f69\r\n         dwDamageMask := 0;             \/\/ \u5ffd\u7565\u5c42\u906e\u7f69\r\n      End;\r\n   \/\/\u5f97\u5230\u8bbe\u5907\u573a\u666f\u63cf\u8ff0\r\n   h_DC := GetDC(h_Wnd);\r\n   If (h_DC = 0) Then\r\n      Begin\r\n         glKillWnd(Fullscreen);         \/\/ \u521b\u5efa\u5931\u8d25\uff0c\u9500\u6bc1\u7a97\u4f53\r\n         MessageBox(0, '\u4e0d\u80fd\u5f97\u5230\u8bbe\u5907\u573a\u666f!', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n         Result := False;\r\n         Exit;\r\n      End;\r\n\r\n   \/\/\u627e\u5230\u76f8\u5e94\u7684\u8c61\u7d20\u683c\u5f0f\r\n   PixelFormat := ChoosePixelFormat(h_DC, @pfd);\r\n   If (PixelFormat = 0) Then\r\n      Begin\r\n         glKillWnd(Fullscreen);\r\n         MessageBox(0, '\u627e\u4e0d\u5230\u5408\u9002\u7684\u683c\u5f0f', '\u9519\u8bef', MB_OK\r\n            Or MB_ICONERROR);\r\n         Result := False;\r\n         Exit;\r\n      End;\r\n\r\n   \/\/\u8bbe\u7f6e\u50cf\u7d20\u683c\u5f0f.\r\n   If (Not SetPixelFormat(h_DC, PixelFormat, @pfd)) Then\r\n      Begin\r\n         glKillWnd(Fullscreen);\r\n         MessageBox(0, '\u65e0\u6cd5\u521b\u5efa\u6e32\u67d3\u683c\u5f0f', '\u9519\u8bef', MB_OK Or\r\n            MB_ICONERROR);\r\n         Result := False;\r\n         Exit;\r\n      End;\r\n\r\n   \/\/\u53d6\u5f97\u7740\u8272\u63cf\u8ff0\u8868\r\n   h_RC := wglCreateContext(h_DC);\r\n   If (h_RC = 0) Then\r\n      Begin\r\n         glKillWnd(Fullscreen);\r\n         MessageBox(0, '\u65e0\u6cd5\u521b\u5efaOpenGL \u7ed8\u5236\u63cf\u8ff0\u8868', '\u9519\u8bef',\r\n            MB_OK Or MB_ICONERROR);\r\n         Result := False;\r\n         Exit;\r\n      End;\r\n\r\n   \/\/\u5df2\u7ecf\u53d6\u5f97\u4e86\u8bbe\u5907\u63cf\u8ff0\u8868\u548c\u7740\u8272\u63cf\u8ff0\u8868\u3002\r\n   \/\/\u6fc0\u6d3b\u7740\u8272\u63cf\u8ff0\u8868\r\n   If (Not wglMakeCurrent(h_DC, h_RC)) Then\r\n      Begin\r\n         glKillWnd(Fullscreen);\r\n         MessageBox(0, 'Unable to activate OpenGL rendering context', 'Error',\r\n            MB_OK Or MB_ICONERROR);\r\n         Result := False;\r\n         Exit;\r\n      End;\r\n   \/\/OpenGL\u7a97\u53e3\u5df2\u7ecf\u521b\u5efa\u5b8c\u6210\r\n\r\n   \/\/ \u663e\u793a\u7a97\u4f53\uff0c\u7f6e\u4e8e\u6700\u524d\r\n   ShowWindow(h_Wnd, SW_SHOW);          \/\/ \u663e\u793a\u7a97\u53e3\r\n   SetForegroundWindow(h_Wnd);          \/\/ \u7565\u7565\u63d0\u9ad8\u4f18\u5148\u7ea7\r\n   SetFocus(h_Wnd);                     \/\/ \u8bbe\u7f6e\u952e\u76d8\u7684\u7126\u70b9\u81f3\u6b64\u7a97\u53e3\r\n\r\n   glResizeWnd(Width, Height);          \/\/ \u8bbe\u7f6e\u900f\u89c6 GL \u5c4f\u5e55\r\n   glInit();                            \/\/ \u521d\u59cb\u5316\u65b0\u5efa\u7684GL\u7a97\u53e3\r\n\r\n   Result := True;\r\nEnd;\r\n\r\nFunction WinMain(hInstance: HINST;      \/\/\u5b9e\u4f8b\r\n   hPrevInstance: HINST;                \/\/ \u524d\u4e00\u4e2a\u5b9e\u4f8b\r\n   lpCmdLine: PChar;                    \/\/ \u547d\u4ee4\u884c\u53c2\u6570\r\n   nCmdShow: Integer                    \/\/ \u7a97\u53e3\u663e\u793a\u72b6\u6001\r\n   ): Integer; stdcall;\r\nVar\r\n   msg              : TMsg;             \/\/ Windowsx\u6d88\u606f\u7ed3\u6784\r\n   finished         : Boolean;          \/\/ \u7528\u6765\u9000\u51fa\u5faa\u73af\u7684Bool \u53d8\u91cf\r\nBegin\r\n   finished := False;\r\n\r\n   \/\/\u5e94\u7528\u7a0b\u5e8f\u521d\u59cb\u5316\r\n   \/\/glCreateWnd\uff0c\u521b\u5efa\u7a97\u4f53\u4e3a800*600\r\n   If Not glCreateWnd(800, 600, false, 32) Then\r\n      Begin\r\n         Result := 0;\r\n         Exit;\r\n      End;\r\n\r\n   While Not finished Do\r\n      Begin\r\n         \/\/\u68c0\u67e5\u4e00\u4e2a\u7ebf\u7a0b\u6d88\u606f\u961f\u5217\uff0c\u5c06\u6240\u9009\u7684\u8303\u56f4\u4fdd\u5b58\u5230\u6d88\u606f\u7eaa\u5f55\u4e2d\r\n         \/\/BOOL PeekMessage(\r\n         \/\/             LPMSG lpMsg,          \/\/ \u6d88\u606f\u8bb0\u5f55\u7684\u6307\u9488\r\n         \/\/             HWND hWnd,          \/\/ \u7a97\u53e3\u53e5\u67c4\r\n         \/\/             UINT wMsgFilterMin,  \/\/ \u7b2c\u4e00\u4e2a\u6d88\u606f\r\n         \/\/             UINT wMsgFilterMax,  \/\/ \u6700\u540e\u4e00\u4e2a\u6d88\u606f\r\n         \/\/             UINT wRemoveMsg      \/\/ \u6807\u5fd7    Value        Meaning\r\n         \/\/            );                                  PM_NOREMOVE \u5904\u7406\u540e\u4fdd\u7559\u5728\u6d88\u606f\u961f\u5217\u4e2d\r\n         \/\/                                                PM_REMOVE \u5904\u7406\u540e\u4ece\u6d88\u606f\u961f\u5217\u4e2d\u6e05\u9664\r\n         \/\/\u8981\u505a\u7684\u7b2c\u4e00\u4ef6\u4e8b\u662f\u68c0\u67e5\u662f\u5426\u6709\u6d88\u606f\u5728\u7b49\u5f85\u3002\r\n         \/\/\u4f7f\u7528PeekMessage()\u53ef\u4ee5\u5728\u4e0d\u9501\u4f4f\u6211\u4eec\u7684\u7a0b\u5e8f\u7684\u524d\u63d0\u4e0b\u5bf9\u6d88\u606f\u8fdb\u884c\u68c0\u67e5\u3002\r\n         \/\/\u8bb8\u591a\u7a0b\u5e8f\u4f7f\u7528GetMessage()\uff0c\u4e5f\u53ef\u4ee5\u5f88\u597d\u7684\u5de5\u4f5c\u3002\r\n         \/\/\u4f46\u4f7f\u7528GetMessage()\uff0c\u7a0b\u5e8f\u5728\u6536\u5230paint\u6d88\u606f\u6216\u5176\u4ed6\u522b\u7684\u4ec0\u4e48\u7a97\u53e3\u6d88\u606f\u4e4b\u524d\u4e0d\u4f1a\u505a\u4efb\u4f55\u4e8b\u3002\r\n         If (PeekMessage(msg, 0, 0, 0, PM_REMOVE)) Then \/\/\u68c0\u67e5\u662f\u5426\u6709\u6d88\u606f\r\n            \/\/ wMsgFilterMin,wMsgFilterMax \u8fd9\u4e24\u4e2a\u53c2\u6570\u90fd\u4e3a0\uff0c\u8fd4\u56de\u6240\u6709\u53ef\u7528\u7684\u6d88\u606f\r\n            Begin\r\n               If (msg.message = WM_QUIT) Then \/\/ \u5982\u679c\u662f\u9000\u51fa\u6d88\u606f\r\n                  finished := True      \/\/\u6539\u53d8\u5faa\u73af\u6761\u4ef6\uff0c\u9000\u51fa\r\n               Else\r\n                  Begin                 \/\/ \u5426\u5219\u5904\u7406\u6d88\u606f\r\n                     \/\/ \u7ffb\u8bd1\u6d88\u606f\uff0c\u7136\u540e\u53d1\u9001\u6d88\u606f\uff0c\u4f7f\u5f97WndProc() \u6216 Windows\u80fd\u591f\u5904\u7406\u4ed6\u4eec\u3002\r\n                     TranslateMessage(msg); \/\/\u7ffb\u8bd1\u6d88\u606f\r\n                     DispatchMessage(msg); \/\/\u53d1\u9001\u6d88\u606f\r\n                  End;\r\n            End\r\n         Else                           \/\/\u5982\u679c\u6ca1\u6709\u6d88\u606f\uff0c\u7ed8\u5236\u6211\u4eec\u7684OpenGL\u573a\u666f\u3002\r\n            Begin\r\n               glDraw();                \/\/ \u91cd\u753b\u5c4f\u5e55\r\n\r\n               SwapBuffers(h_DC);       \/\/ \u4ea4\u6362\u7f13\u5b58 (\u53cc\u7f13\u5b58)\r\n\r\n               If (keys&#x5B;VK_ESCAPE]) Then \/\/ \u5982\u679c\u6309\u4e0b\u4e86ESC\u952e\r\n                  finished := True\r\n            End;\r\n      End;\r\n   glKillWnd(FALSE);                    \/\/ \u91ca\u653e\u7a97\u4f53\r\n   Result := msg.wParam;                \/\/ \u9000\u51fa\u7a0b\u5e8f\r\nEnd;\r\n\r\nBegin\r\n   WinMain(hInstance, hPrevInst, CmdLine, CmdShow);\r\nEnd.\r\n\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Program Project1; Uses opengl, windows, Messages; Const [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-638","post","type-post","status-publish","format-standard","hentry","category-code_related"],"_links":{"self":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/comments?post=638"}],"version-history":[{"count":1,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/638\/revisions"}],"predecessor-version":[{"id":4729,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/638\/revisions\/4729"}],"wp:attachment":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/media?parent=638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/categories?post=638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/tags?post=638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}