#include-once
#include <WinAPI.au3>

Global Const $tagCBT_CREATEWND = "ptr lpcs;HWND tagCBT_CREATEWND"
Global Const $tagCREATESTRUCT = "ptr lpCreateParams;handle hInstance;HWND hMenu;HWND hwndParent;int cy;int cx;int y;int x;LONG style;ptr lpszName;ptr lpszClass;DWORD dwExStyle"

Global $g__hProcDlgBox = DllCallbackRegister("__DlgBox_CbtHookProc", "LRESULT", "int;WPARAM;LPARAM")
Global $g__TIdDlgBox = _WinAPI_GetCurrentThreadId()
Global $g__hHookDlgBox = _WinAPI_SetWindowsHookEx($WH_CBT, DllCallbackGetPtr($g__hProcDlgBox), 0, $g__TIdDlgBox)

Global Const $g__MaxDlgBtns = 5 ; maximum of 5 buttons to rename text
Global Const $g__MaxDlgItemId = 11 ; maximun ID of buttons to search is 11 as this is the maximun used in Messagebox

Global $g__DlgBoxPosX, $g__DlgBoxPosY, $g__DlgBoxWidth, $g__DlgBoxHeight
Global $g__aDlgBoxBtnText[$g__MaxDlgBtns]

Global $g__DlgBtnCount = 0

_DlgBox_SetDefaults()

OnAutoItExitRegister("__DlgBox_UnregisterHook")


Func _DlgBox_SetButtonNames($TxtBtn1 = Default, $TxtBtn2 = Default, $TxtBtn3 = Default, $TxtBtn4 = Default, $TxtBtn5 = Default)
    $g__aDlgBoxBtnText[0] = $TxtBtn1
    $g__aDlgBoxBtnText[1] = $TxtBtn2
    $g__aDlgBoxBtnText[2] = $TxtBtn3
    $g__aDlgBoxBtnText[3] = $TxtBtn4
    $g__aDlgBoxBtnText[4] = $TxtBtn5

    $g__DlgBtnCount = @NumParams
EndFunc   ;==>_DlgBox_SetButtonNames

Func _DlgBox_SetPosition($x = Default, $y = Default) ;only for MsgBox, not working and not needed for InputBox
    $g__DlgBoxPosX = $x
    $g__DlgBoxPosY = $y
EndFunc   ;==>_DlgBox_SetPosition

Func _DlgBox_SetSize($w = Default, $h = Default)
    $g__DlgBoxWidth = $w
    $g__DlgBoxHeight = $h
EndFunc   ;==>_DlgBox_SetSize

Func _DlgBox_SetDefaults()
    $g__DlgBoxPosX = Default
    $g__DlgBoxPosY = Default
    $g__DlgBoxWidth = Default
    $g__DlgBoxHeight = Default
    For $i = 0 To UBound($g__aDlgBoxBtnText) - 1
        $g__aDlgBoxBtnText[$i] = Default
    Next
EndFunc   ;==>_DlgBox_SetDefaults

Func __DlgBox_CbtHookProc($nCode, $wParam, $lParam)
    Local $tcw, $tcs
    Local $iSearch = 0
    Local $ahBtn[$g__DlgBtnCount]
    If $nCode < 0 Then
        Return _WinAPI_CallNextHookEx($g__hHookDlgBox, $nCode, $wParam, $lParam)
    EndIf

    Switch $nCode
        Case 3 ;5=HCBT_CREATEWND
            If _WinAPI_GetClassName(HWnd($wParam)) = "#32770" Then ;Dialog window class
                $tcw = DllStructCreate($tagCBT_CREATEWND, $lParam)
                $tcs = DllStructCreate($tagCREATESTRUCT, DllStructGetData($tcw, "lpcs"))

                If $g__DlgBoxPosX <> Default Then DllStructSetData($tcs, "x", $g__DlgBoxPosX)
                If $g__DlgBoxPosY <> Default Then DllStructSetData($tcs, "y", $g__DlgBoxPosY)
                If $g__DlgBoxWidth <> Default Then DllStructSetData($tcs, "cx", $g__DlgBoxWidth)
                If $g__DlgBoxHeight <> Default Then DllStructSetData($tcs, "cy", $g__DlgBoxHeight)
            EndIf
        Case 5 ;5=HCBT_ACTIVATE
            If _WinAPI_GetClassName(HWnd($wParam)) = "#32770" Then ;Dialog window class
				For $i = 1 To $g__MaxDlgItemId
					If IsHWnd(_WinAPI_GetDlgItem($wParam, $i)) Then
						If $g__aDlgBoxBtnText[$iSearch] <> Default Then _WinAPI_SetDlgItemText($wParam, $i, $g__aDlgBoxBtnText[$iSearch])
						$iSearch += 1
						If $iSearch >= UBound($ahBtn) Then ExitLoop
					EndIf
				Next
			EndIf
    EndSwitch
    Return _WinAPI_CallNextHookEx($g__hHookDlgBox, $nCode, $wParam, $lParam)
EndFunc   ;==>__DlgBox_CbtHookProc

Func __DlgBox_UnregisterHook()
    _WinAPI_UnhookWindowsHookEx($g__hHookDlgBox)
    DllCallbackFree($g__hProcDlgBox)
EndFunc   ;==>__DlgBox_UnregisterHook

Func _WinAPI_SetDlgItemText($hDlg, $nIDDlgItem, $lpString)
    Local $aRet = DllCall('user32.dll', "int", "SetDlgItemText", _
            "hwnd", $hDlg, _
            "int", $nIDDlgItem, _
            "str", $lpString)
    Return $aRet[0]
EndFunc   ;==>_WinAPI_SetDlgItemText