[ucgui] 对话框6——触屏位置简单例子

>_<:直接调用函数获得触屏位置：

• xPhys = GUI_TOUCH_GetxPhys(); /* Get the A/D mesurement result in x */
• yPhys = GUI_TOUCH_GetyPhys(); /* Get the A/D mesurement result in y */

void MainTask_touch(void) {
  GUI_Init();
  GUI_CURSOR_Show();
  GUI_CURSOR_Select(&GUI_CursorCrossL);
  GUI_SetBkColor(GUI_WHITE);
  GUI_SetColor(GUI_BLACK);
  GUI_Clear();
  GUI_DispString("Measurement of\nA/D converter values");
  while (1) {
    GUI_PID_STATE TouchState;
    int xPhys, yPhys;
    GUI_TOUCH_GetState(&TouchState);  /* Get the touch position in pixel */
    xPhys = GUI_TOUCH_GetxPhys();     /* Get the A/D mesurement result in x */
    yPhys = GUI_TOUCH_GetyPhys();     /* Get the A/D mesurement result in y */
    /* Display the measurement result */
    GUI_SetColor(GUI_BLUE);
    GUI_DispStringAt("Analog input:\n", 0, 20);
    GUI_GotoY(GUI_GetDispPosY() + 2);
    GUI_DispString("x:");
    GUI_DispDec(xPhys, 4);
    GUI_DispString(", y:");
    GUI_DispDec(yPhys, 4);
    /* Display the according position */
    GUI_SetColor(GUI_RED);
    GUI_GotoY(GUI_GetDispPosY() + 4);
    GUI_DispString("\nPosition:\n");
    GUI_GotoY(GUI_GetDispPosY() + 2);
    GUI_DispString("x:");
    GUI_DispDec(TouchState.x,4);
    GUI_DispString(", y:");
    GUI_DispDec(TouchState.y,4);
    /* Wait a while */
    GUI_Delay(100);
  };
}