声明API格式如下:
Subroutine keybd_event(char bVk, char bScan, ulong dwFlags, ref ulong dwExtraInfo) Library "USER32.DLL"
函数定义如:
ulong ll_ExtraInfo
char lc_shift, lc_tab
lc_shift=char(16)
lc_tab=char(9)
keybd_event(lc_shift, char(0), 0, ll_ExtraInfo)
keybd_event(lc_tab, char(0), 0, ll_ExtraInfo)
keybd_event(lc_tab, char(0), 2, ll_ExtraInfo)
keybd_event(lc_shift, char(0), 2, ll_ExtraInfo)