请问怎样获得大小写提示灯是否亮着？

Question

请问怎样获得大小写提示灯是否亮着？

Answer 1

用API 函数 GetKeyboardState，例如：
unsigned char kbuf[256];
GetKeyboardState(kbuf);if(kbuf[VK_CAPITAL]&1)
    GetDlgItem(ID_CAPS_LOCK_KEY)->SetWindowText("On");
else 
    GetDlgItem(ID_CAPS_LOCK_KEY)->SetWindowText("Off");
if(kbuf[VK_NUMLOCK]&1)
     GetDlgItem(ID_NUM_LOCK_KEY)->SetWindowText("On");
else 
     GetDlgItem(ID_NUM_LOCK_KEY)->SetWindowText("Off");