support receiving multi-points in a packet

@@ -1007,6 +1007,32 @@
 								var status = dv.getUint8(9, true);
 								writeToScreen('<span style="color: green;">ext_input_status: ' + status + '</span>');
 							}
+							else if(4 == type || 16 == type){
+								var nPoint = dv.getUint16(9,true);
+								for (var i = 0; i < nPoint; i++) {
+									var nPress = dv.getUint16(11 + i * 6, true);
+									var x = dv.getUint16(13 + i * 6, true);
+									var y = dv.getUint16(15 + i * 6, true);
+									if (14 == type) {
+										if (rotate_degree == 0) {
+											draw_ext_input(x, y, nPress);
+										}
+										else if (rotate_degree == 90) {
+											draw_ext_input(y, ext_input_panel_width - x, nPress);
+										}
+										else if (rotate_degree == 180) {
+											draw_ext_input(ext_input_panel_width - x, ext_input_panel_height - y, nPress);
+										}
+										else {
+											draw_ext_input(ext_input_panel_height - y, x, nPress);
+										}
+									}
+									else {
+										draw_ext_input(x, y, nPress);
+									}
+								}
+							//	writeToScreen('<span style="color: green;">pen position: ' + x + ',' + y + ',' + nPress + '</span>');
+							}
 							else if( 10 == type) {
 								ext_input_open = true;
 								var status = dv.getInt32(9, true);