void GUI_main(void)
{
int xCenter = LCD_GET_XSIZE() / 2;
char acText[15] = "KZQ-6?ì2aò?";
GUI_SetBkColor(GUI_BLUE); //Set the current background color.
GUI_SetFont(&GUI_FontHZ_b_43); //Sets the current font.
GUI_SetColor(GUI_BLACK); //Set the current foreground color
GUI_Clear();
GUI_DispStringHCenterAt(acText, xCenter, 26);