优化窗口移动的逻辑，显示还是有问题，需要继续优化

HW_Devices/touch.c

@@ -132,10 +132,22 @@ void TP_Server()
 {
 	if(TPEN==0)                                             //如果有触摸
 	{
-		TP_Read_XY2(&t0.adc_x,&t0.adc_y);                  //先读取ad值
-		t0.pix_x=(t0.adc_x/tconfig.x_acc)-tconfig.x_offset;//转换为像素坐标
-		t0.pix_y=(t0.adc_y/tconfig.y_acc)-tconfig.y_offset;
+		if(TP_Read_XY2(&t0.adc_x,&t0.adc_y))
+		{//先读取ad值
+			t0.pix_x=(t0.adc_x/tconfig.x_acc)-tconfig.x_offset;//转换为像素坐标
+			t0.pix_y=(t0.adc_y/tconfig.y_acc)-tconfig.y_offset;
+			t0.d=1;
+		}else
+		{
+			t0.d=0;
+		}
+		t0.c=1;
 
+	}else
+	{
+		t0.c=0;
+		t0.pix_x=-1;
+		t0.pix_y=-1;
 	}
 }
 //直接读取