(#3) Added highlight function to screen

Author: s1hofmann

src/screen.c renamed to src/screen.cc

@@ -1,5 +1,6 @@
 #include "screen.h"
 #include "os.h"
+#include "window.h"
 
 #if defined(IS_MACOSX)
 	#include <ApplicationServices/ApplicationServices.h>
@@ -31,3 +32,8 @@ bool pointVisibleOnMainDisplay(MMPoint point)
 	MMSize displaySize = getMainDisplaySize();
 	return point.x < displaySize.width && point.y < displaySize.height;
 }
+
+void highlight(int x, int y, int width, int height, int duration, float opacity) {
+    Window highlightWindow(x, y, width, height);
+	highlightWindow.show(duration, opacity);
+}

src/screen.h

@@ -22,6 +22,8 @@ MMSize getMainDisplaySize(void);
  * of the main screen. */
 bool pointVisibleOnMainDisplay(MMPoint point);
 
+void highlight(int x, int y, int width, int height, int duration, float opacity);
+
 #ifdef __cplusplus
 }
 #endif