为什么背景设成黑色，触摸按钮就没反应

bebelong

做了一个简单的触摸按钮界面， 按下后，按钮上的字变为OK。 一旦把背景色设置为黑色，就没反应。

[mw_shl_code=c,true]//?????????? void system_init(void) { FRESULT res; delay_init(168); //???±?????? NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //????·?×é???? uart_init(115200); //?®???¨?????è?? TFTLCD_Init(); //LCD?????? TP_Init(); //???????????? FSMC_SRAM_Init(); //SRAM?????? W25QXX_Init(); //flash?????? exfuns_init(); //?????????????? Io_Init(); //IO???????? BEEP_Init(); //·??ù?÷?????? mem_init(SRAMIN); //???????????????? mem_init(SRAMCCM); //??????CCM?????? RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_CRC,ENABLE); //????CRC?±?? // WM_SetCreateFlags(WM_CF_MEMDEV); //·??????????? GUI_Init(); //STemWin ?????? res = f_mount(fs[1],"1:",1); //????FLASH. USBH_Init(&USB_OTG_Core,USB_OTG_FS_CORE_ID,&USB_Host,&USBH_MSC_cb,&USR_Callbacks); //usb ?÷?ú?????? //?????????? GUI_SetBkColor(GUI_BLACK); //?è??±??°???? GUI_SetColor(GUI_WHITE); //?è?????? GUI_Clear(); GUI_SetFont(&GUI_FontIcpFont48B); //×??í23 GUI_DispStringAt("Ph Technologies",10,200); //20??×?·? GUI_DispStringAt("A",100,400); //12 GUI_DispStringAt("B",160,500); //7 GUI_DispStringAt("Init...",160,600); //7 GUI_Delay(2000); } //?÷???? int main(void) { system_init(); //?????????? OSInit(); //??????UCOS OSTaskCreate(start_task,(void*)0,(OS_STK*)&START_TASK_STK[START_STK_SIZE-1],START_TASK_PRIO); //start_task???? ???? ???????????? ?????????? OSStart(); //????UCOS } //???????? void start_task(void *pdata) { OS_CPU_SR cpu_sr; OSStatInit(); //?????????????? OS_ENTER_CRITICAL(); //??????????,??±????? OSTaskCreate(main_task,(void *)0,(OS_STK*)&MAIN_TASK_STK[MAIN_STK_SIZE-1],MAIN_TASK_PRIO); //??????3 ?÷???? OSTaskSuspend(OS_PRIO_SELF); //????start???? OS_EXIT_CRITICAL(); //??????????,?????? } //?÷???? void main_task(void *pdata) { int t; //°????ì??ID OS_CPU_SR cpu_sr; GUI_Clear(); first_screen_button(); //???¨°??? GUI_Delay(2000); GUI_DispStringAt("ABCDE",160,700); //7 while(1) { GUI_TOUCH_Exec(); //???????é?? t = GUI_GetKey(); //????ID LCD_ShowxNum(200,780,OSCPUUsage,3,16,0); //????CPU?????? if(t==21) { BUTTON_SetFont(Zero_Button,&GUI_FontIcpFont48B); BUTTON_SetText(Zero_Button, "OK"); } if(t==22) { BUTTON_SetFont(Rom_Button,&GUI_FontIcpFont48B); BUTTON_SetText(Rom_Button, "OK"); } if(t==23) { BUTTON_SetFont(Input_Button,&GUI_FontIcpFont48B); BUTTON_SetText(Input_Button, "OK"); } GUI_Delay(65); } } //????????°??????? void first_screen_button(void) { //???¨°??? zero Zero_Button=BUTTON_Create(100,250,300,100,21,WM_CF_SHOW); BUTTON_SetFont(Zero_Button,&GUI_FontIcpFont48B); BUTTON_SetText(Zero_Button, "Zero"); //???¨°??? read from rom Rom_Button=BUTTON_Create(100,400,300,100,22,WM_CF_SHOW); BUTTON_SetFont(Rom_Button,&GUI_FontIcpFont48B); BUTTON_SetText(Rom_Button, "Rom"); //???¨°???manual input Input_Button=BUTTON_Create(100,550,300,100,23,WM_CF_SHOW); BUTTON_SetFont(Input_Button,&GUI_FontIcpFont48B); BUTTON_SetText(Input_Button, "Manual"); } [/mw_shl_code]

 

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