--- mstools/samples/gdidemo/bounce.c	2018/08/09 18:20:01	1.1
+++ mstools/samples/gdidemo/bounce.c	2018/08/09 18:20:47	1.1.1.2
@@ -223,7 +223,7 @@ VOID BounceRefresh(HWND hWnd)
 
             ballGetDimensions(pbd->hBall2,&pDimensions);
             ballSetPosition(pbd->hBall2,rect.right-pDimensions.x,0);
-            xDirection = -((lRandom() % 5)+5);
+	    xDirection = -(((int)lRandom() % 5)+5);
             yDirection =  ((lRandom() % 5)+5);
             ballSetDirection(pbd->hBall2,xDirection,yDirection);
 
@@ -231,14 +231,14 @@ VOID BounceRefresh(HWND hWnd)
             ballGetDimensions(pbd->hBall3,&pDimensions);
             ballSetPosition(pbd->hBall3,0,rect.bottom-pDimensions.y);
             xDirection =  ((lRandom() % 5)+5);
-            yDirection = -((lRandom() % 5)+5);
+	    yDirection = -((int)(lRandom() % 5)+5);
             ballSetDirection(pbd->hBall3,xDirection,yDirection);
 
 
             ballGetDimensions(pbd->hBall4,&pDimensions);
             ballSetPosition(pbd->hBall4,rect.right-pDimensions.x,rect.bottom-pDimensions.y);
-            xDirection = -((lRandom() % 5)+5);
-            yDirection = -((lRandom() % 5)+5);
+	    xDirection = -((int)(lRandom() % 5)+5);
+	    yDirection = -((int)(lRandom() % 5)+5);
             ballSetDirection(pbd->hBall4,xDirection,yDirection);
 
 
@@ -316,7 +316,7 @@ VOID CheckEdgePosition(HWND hWnd, HANDLE
     }
     if((xNewPos+pDim.x) > rect.right)
     {
-        xNewDir = -((lRandom() % 5)+5);
+	xNewDir = -(((int)lRandom() % 5)+5);
         ballSetPosition(hBall,rect.right-pDim.x,pPos.y);
     }
     if(yNewPos < rect.top)
@@ -326,7 +326,7 @@ VOID CheckEdgePosition(HWND hWnd, HANDLE
     }
     if((yNewPos+pDim.y) > rect.bottom)
     {
-        yNewDir = -((lRandom() % 5)+5);
+	yNewDir = -(((int)lRandom() % 5)+5);
         ballSetPosition(hBall,pPos.x,rect.bottom-pDim.y);
     }
     ballSetDirection(hBall,xNewDir,yNewDir);