Hi everyone, I have specified the my question in the in gui codes
Thank you
#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
$Form1 = GUICreate("Form1", 741, 318)
$Input1 = GUICtrlCreateInput("DE536F150981EE9-843246755A584A645957686A5A58526C634756415A3231686157777559323973-6304D0584A4C0CB072A2E120A4ADBCB6", 74, 48, 649, 21)
$Input2 = GUICtrlCreateInput("",74, 88, 649, 21)
$Input3 = GUICtrlCreateInput("",74, 128, 649, 21)
$Button1 = GUICtrlCreateButton("Button1", 288, 264, 75, 25)
GUISetState(@SW_SHOW)
While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
Exit
Case $Button1
$aReadinput1 = GUICtrlRead($Input1)
;I want to delete 15 characters here : --> DE536F150981EE9-
;GUICtrlSetData($Input2,"843246755A584A645957686A5A58526C634756415A3231686157777559323973")
;GUICtrlSetData($Input3,"6304D0584A4C0CB072A2E120A4ADBCB6")
EndSwitch
WEnd