[已解决],#forceref的含义

529304mnm

如题，论坛上有人问但是没有解决。大侠们帮忙啊！

pusofalse

同问，一直没搞懂#forceref有何意义。
或者只是如;注释符号、#Engion那样，仅起到一个注释的作用？~

afan

要忽略的参数吧，猜的

lynfr8

http://www.autoitscript.com/forum/index.php?showtopic=39310

It tells Au3Check not to report on when a variable isn't used and option -w5 is selected .

AutoIt3 Syntax Checker v1.54 Copyright © Tylo 2006

Usage: Au3Check [-q][-d] [-u file] [-w[-] n].. [-v[-] n].. [-I dir].. file.au3
-q : quiet (only error/warn output)
-d : as Opt("MustDeclareVars", 1)
-I dir : additional directories for searching include files
-w 1 : already included file (on)
-w 2 : missing #comments-end (on)
-w 3 : already declared var (off)
-w 4 : local var used in global scope (off)
-w 5 : local var declared but not used (off)
-w 6 : warn when using Dim (off)
-v 1 : show include paths/files (off)
-v 2 : show lexer tokens (off)
-v 3 : show unreferenced UDFs and global variables (off)
Exit codes:
0 : success - no errors or warnings
1 : warning(s) only
2 : syntax error(s)
3 : usage or input error

我测试过一些例子，也没发现哪里有什么区别

afan

我测试过一些例子，也没发现哪里有什么区别
lynfr8 发表于 2010-7-30 04:25

    看来就如我说，忽略（不使用的）变量
我一直是这样用的…

netegg

强制作为参考参数（即后面跟随的参数只是占个位置，屁用没有）

C.L

回复 4# lynfr8

It tells Au3Check not to report on when a variable isn't used and option -w5 is selected .

正解

下面提供一段代码

#AutoIt3Wrapper_Run_AU3Check=Y
#AutoIt3Wrapper_Au3Check_Parameters = -w 5

hello (2)
Func hello($hello)
;~ #forceref $hello
    msgbox(0,"","Hello World!")
EndFunc

先将#forceref注释了，将这段代码编译成exe时，au3check 会出现错误提示：

C:\Users\xx\Desktop\test.au3(7,18) : WARNING: $hello: declared, but not used in func.
Func hello($hello)
~~~~~~~~~~~~~~~~~^

而将#forceref $hello的注释去掉，再编译就没有错误出现了。

minterz

如果这样说,这个函数基本没啥用啊.....

ceoguang

是给编译器看的

lchl0588

来自某个网页

#Include <GuiListView.au3>

$Form1 = GUICreate("AForm1", 452, 199, 177, 118)
$ListView1 = GUICtrlCreateListView("1|2|3", 10, 10, 431, 156)
$ListView1_0 = GUICtrlCreateListViewItem("1", $ListView1)
$ListView1_1 = GUICtrlCreateListViewItem("item2", $ListView1)
$ListView1_2 = GUICtrlCreateListViewItem("item3", $ListView1)
$ListView1_3 = GUICtrlCreateListViewItem("item4", $ListView1)
$ListView1_4 = GUICtrlCreateListViewItem("item5", $ListView1)
$dd = GUICtrlCreateInput("",10,179)

Global Const $WM_NOTIFY = 0x004E

GUIRegisterMsg($WM_NOTIFY, "WM_Notify_Events")

GuiSetState()
Do 
Until GUIGetMsg()=-3

Func WM_Notify_Events($hWndGUI, $MsgID, $wParam, $lParam)
    Const $NM_FIRST = 0
    Const $NM_CLICK = ($NM_FIRST - 2)
    Const $NM_HOVER = ($NM_FIRST - 13)
    
    #forceref $hWndGUI, $MsgID, $wParam
    Local $tagNMHDR, $event, $hwndFrom, $code
    $tagNMHDR = DllStructCreate("int;int;int", $lParam) ;NMHDR (hwndFrom, idFrom, code)
    If @error Then Return
    $event = DllStructGetData($tagNMHDR, 3)
    
    If $event = $NM_CLICK Then
        GUICtrlSetData($dd,"鼠标选中："&_GUICtrlListViewGetItemText($ListView1, _GUICtrlListViewGetSelectedIndices($ListView1)))
    EndIf
    $tagNMHDR = 0
    $event = 0
    $lParam = 0
EndFunc

看下25行中！！！