怎么在数据窗口中用左箭头实现shift+tab

subroutine keybd_event(uint bVk,uint bScan,long dwFlags,long dwExtraInfo ) library 'user32.dll'

定义用户事件keydown：PBm_dwnkey。
在事件中编程：

integer VK_TAB = 09
integer VK_SHIFT = 16

if key = KeyLeftArrow! then
    keybd_event(VK_SHIFT,0,0,0) //按下shift
    keybd_event(VK_TAB,0,0,0) //按下tab
    keybd_event(VK_TAB,0,2,0) //释放tab
    keybd_event(VK_SHIFT,0,2,0) //释放shift
    return 1
end if

if key = KeyRightArrow! then
    keybd_event(VK_TAB,0,0,0) //按下tab
    keybd_event(VK_TAB,0,2,0) //释放tab
    return 1
end if

此题由摆渡人工作室站长ferryman回答

kukoc 再提供另一种解决方法（比较原始，但也能实现）：
function boolean GetKeyboardState (ref char kbarray[256]) library "user32.dll"
function boolean SetKeyboardState (ref char kbarray[256]) library "user32.dll"

//脚本：用户事件keydown：PBm_dwnkey

char lc_kb[256]
if key = KeyLeftArrow! then
    GetKeyboardState (lc_kb)
    lc_kb[17] = Char (128)

  SetKeyboardState (lc_kb)
    Send (Handle (this), 256, 9, 0)
    GetKeyboardState (lc_kb)
    lc_kb[17] = Char (0)
    SetKeyboardState (lc_kb)
end if