Linux scrollMouse implementation.

src/mouse.c

@@ -153,7 +153,24 @@ void scrollMouse(int scrollMagnitude, MMMouseWheelDirection scrollDirection)
 		CGEventPost(kCGHIDEventTap, event);
 
 	#elif defined(USE_X11)
-		/* TODO Add Code for this platform */
+
+		int x;
+		int dir = 4; /* Button 4 is up, 5 is down. */
+		Display *display = XGetMainDisplay();
+
+		if (scrollDirection == DIRECTION_DOWN)
+		{
+			dir = 5;
+		}
+
+		for (x = 0; x < cleanScrollMagnitude; x++)
+		{
+			XTestFakeButtonEvent(display, dir, 1, CurrentTime);
+			XTestFakeButtonEvent(display, dir, 0, CurrentTime);
+		}
+
+		XFlush(display);
+
 	#elif defined(IS_WINDOWS)
 		INPUT mouseScrollInput;
 		mouseScrollInput.type = INPUT_MOUSE;