Fix exmaples, Add them to pipeline

.github/workflows/pipeline.yml

@@ -38,3 +38,21 @@ jobs:
           # In this mode, `mainSourceFile` is excluded and `version (unittest)` are included
           # See https://dub.pm/package-format-json.html#configurations
           dub test
+          cd examples/bezier
+          dub build -b=release
+          cd ../dminer
+          dub build -b=release
+          cd ../dmledit
+          dub build -b=release
+          cd ../dragon
+          dub build -b=release
+          cd ../example1
+          dub build -b=release
+          cd ../helloworld
+          dub build -b=release
+          cd ../ircclient
+          dub build -b=release
+          cd ../opengl
+          dub build -b=release
+          cd ../tetris
+          dub build -b=release

examples/tetris/src/model.d

@@ -190,11 +190,11 @@ struct Cup {
 
     private FigurePosition _currentFigure;
     /// current figure index, orientation, position
-    @property ref FigurePosition currentFigure() { return _currentFigure; }
+    @property ref FigurePosition currentFigure() return { return _currentFigure; }
 
     private FigurePosition _nextFigure;
     /// next figure
-    @property ref FigurePosition nextFigure() { return _nextFigure; }
+    @property ref FigurePosition nextFigure() return { return _nextFigure; }
 
     /// returns number of columns
     @property int cols() {

src/dlangui/platforms/common/platform.d

@@ -1851,6 +1851,17 @@ class Platform {
          */
         int multisamples = 0;
     }
+
+    /**
+     * Returns the amount of multisamples. Returns 0 if no OpenGL support
+     */
+    int getMultisamples()
+    {
+        static if(ENABLE_OPENGL)
+            return multisamples;
+        else
+            return 0;
+    }
     /**
      * close window
      *

src/dlangui/platforms/windows/winapp.d

@@ -448,7 +448,7 @@ class Win32Window : Window {
                             parenthwnd,                 // parent window handle
                             null,                 // window menu handle
                             _hInstance,           // program instance handle
-                            platform.multisamples ? cast(void*)null : cast(void*)this); // creation parameters
+                            platform.getMultisamples ? cast(void*)null : cast(void*)this); // creation parameters
         static if (ENABLE_OPENGL) {
             /* initialize OpenGL rendering */
             HDC hDC = GetDC(_hwnd);
@@ -485,9 +485,9 @@ class Win32Window : Window {
                     }
                 }
             }
+            sharedGLContext.initGLBindings(hDC);
         }
 
-        sharedGLContext.initGLBindings(hDC);
         isInitialized = true;
 
         RECT rect;