why the spinbox disable receive the input focus when use TAB key?

lpcware — Wed, 15 Jun 2016 17:13:30 GMT

Content originally posted in LPCWare by ling3wei on Mon Nov 19 21:36:29 MST 2012
why the spinbox disable receive the input focus when use TAB key?
I will be using a Spinbox widget without a touch or mouse interface, only using the,tab, up, down, left, right,enter,space keys of a keyboard. the other widget is able to receive the input foucs but the spinbox can`t.
My code :
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
{ FRAMEWIN_CreateIndirect, "", ID_FRAMEWIN_0, 0, 35, 331, 328, 0, 0, 0 },
{ BUTTON_CreateIndirect, "", ID_BUTTON_0, 68, 225, 85, 50, 0, 0, 0 },
{ BUTTON_CreateIndirect, "", ID_BUTTON_1, 202, 225, 85, 50, 0, 0, 0 },
{ SPINBOX_CreateIndirect, "", GUI_ID_SPINBOX0_11, 2, 2, 65, 40, 0, 0, 0 },
};

topic why the spinbox disable receive the input focus when use TAB key? in LPC Microcontrollers

why the spinbox disable receive the input focus when use TAB key?