clock: Make the window round in no title bar mode, to exercise SetWindowRgn.

programs/clock/main.c

@@ -180,6 +180,7 @@ static VOID CLOCK_ToggleTitle(VOID)
     else {
 	style = (style & ~(WS_POPUP|WS_THICKFRAME)) | WS_OVERLAPPEDWINDOW;
         SetMenu(Globals.hMainWnd, Globals.hMainMenu);
+        SetWindowRgn(Globals.hMainWnd, 0, TRUE);
     }
     SetWindowLong(Globals.hMainWnd, GWL_STYLE, style);
     SetWindowPos(Globals.hMainWnd, 0,0,0,0,0, 
@@ -311,7 +312,7 @@ static VOID CLOCK_Paint(HWND hWnd)
     FillRect(dcMem, &ps.rcPaint, GetStockObject(LTGRAY_BRUSH));
 
     if(Globals.bAnalog)
-	AnalogClock(dcMem, Globals.MaxX, Globals.MaxY, Globals.bSeconds);
+	AnalogClock(dcMem, Globals.MaxX, Globals.MaxY, Globals.bSeconds, Globals.bWithoutTitle);
     else
 	DigitalClock(dcMem, Globals.MaxX, Globals.MaxY, Globals.bSeconds, Globals.hFont);
 
@@ -361,6 +362,19 @@ static LRESULT WINAPI CLOCK_WndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM
         case WM_SIZE: {
             Globals.MaxX = LOWORD(lParam);
             Globals.MaxY = HIWORD(lParam);
+            if (Globals.bAnalog && Globals.bWithoutTitle)
+            {
+                RECT rect;
+                INT diameter = min( Globals.MaxX, Globals.MaxY );
+                HRGN hrgn = CreateEllipticRgn( (Globals.MaxX - diameter) / 2,
+                                               (Globals.MaxY - diameter) / 2,
+                                               (Globals.MaxX + diameter) / 2,
+                                               (Globals.MaxY + diameter) / 2 );
+                GetWindowRect( hWnd, &rect );
+                MapWindowPoints( 0, hWnd, (LPPOINT)&rect, 2 );
+                OffsetRgn( hrgn, -rect.left, -rect.top );
+                SetWindowRgn( Globals.hMainWnd, hrgn, TRUE );
+            }
 	    CLOCK_ResetFont();
             break;
         }

programs/clock/winclock.c

@@ -82,7 +82,7 @@ static void DrawTicks(HDC dc, const POINT* centre, int radius)
     }
 }
 
-static void DrawFace(HDC dc, const POINT* centre, int radius)
+static void DrawFace(HDC dc, const POINT* centre, int radius, int border)
 {
     /* Ticks */
     SelectObject(dc, CreatePen(PS_SOLID, 2, ShadowColor));
@@ -91,8 +91,12 @@ static void DrawFace(HDC dc, const POINT* centre, int radius)
     DeleteObject(SelectObject(dc, CreatePen(PS_SOLID, 2, TickColor)));
     OffsetWindowOrgEx(dc, SHADOW_DEPTH, SHADOW_DEPTH, NULL);
     DrawTicks(dc, centre, radius);
-
-    DeleteObject(SelectObject(dc, GetStockObject(NULL_BRUSH)));
+    if (border)
+    {
+        SelectObject(dc, GetStockObject(NULL_BRUSH));
+        DeleteObject(SelectObject(dc, CreatePen(PS_SOLID, 5, ShadowColor)));
+        Ellipse(dc, centre->x - radius, centre->y - radius, centre->x + radius, centre->y + radius);
+    }
     DeleteObject(SelectObject(dc, GetStockObject(NULL_PEN)));
 }
 
@@ -159,7 +163,7 @@ static void PositionHands(const POINT* centre, int radius, BOOL bSeconds)
         PositionHand(centre, radius * 0.79, second/60 * 2*M_PI, &SecondHand);  
 }
 
-void AnalogClock(HDC dc, int x, int y, BOOL bSeconds)
+void AnalogClock(HDC dc, int x, int y, BOOL bSeconds, BOOL border)
 {
     POINT centre;
     int radius;
@@ -171,7 +175,7 @@ void AnalogClock(HDC dc, int x, int y, BOOL bSeconds)
     centre.x = x/2;
     centre.y = y/2;
 
-    DrawFace(dc, &centre, radius);
+    DrawFace(dc, &centre, radius, border);
 
     PositionHands(&centre, radius, bSeconds);
     DrawHands(dc, bSeconds);

programs/clock/winclock.h

@@ -21,6 +21,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-void AnalogClock(HDC dc, int X, int Y, BOOL bSeconds);
+void AnalogClock(HDC dc, int X, int Y, BOOL bSeconds, BOOL border);
 HFONT SizeFont(HDC dc, int x, int y, BOOL bSeconds, const LOGFONT* font);
 void DigitalClock(HDC dc, int X, int Y, BOOL bSeconds, HFONT font);