trouble adding value via switch

[thuun]

I'm revising a little autoit script which sets a value in the registry. The value is the cache amount for a virtual file system, the number represents MB of RAM. I cannot seem to add a $Cmdline value which I'd like to use as an input option.

example, this works...

$memory = MemGetStats()
    $fbwfcache = ($memory[1] / 5 / 1024)
        RegWrite("HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\FBWF", "WinPECacheThreshold", "REG_DWORD", $fbwfcache)
Exit

This doesn't...(??)

Dim $p
If $CmdLine[0] = 0 Then Exit
$CmdLine[1] = $p
 $memory = MemGetStats()
  $fbwfcache = Round($memory[1] / $p / 1024)
 RegWrite("HKLM\SYSTEM\ControlSet001\Services\FBWF", "WinPECacheThreshold", "REG_DWORD", $fbwfcache)
Exit

when I put $cmdline in place of $p it produces a incorrect but noticable result.

this is the issue...

--> $fbwfcache = ($memory[1] / $p / 1024)

When a real number is used it works.

Perhaps someone could offer a suggestion, syntax or otherwise, on how to assign this variable with a cmd line switch. Thanks!

Edited February 11, 2007 by thuun

[The Kandie Man]

I'm revising a little autoit script which sets a value in the registry. The value is the cache amount for a virtual file system, the number represents MB of RAM. I cannot seem to add a $Cmdline value which I'd like to use as an input option.

example, this works...

$memory = MemGetStats()
    $fbwfcache = ($memory[1] / 5 / 1024)
        RegWrite("HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\FBWF", "WinPECacheThreshold", "REG_DWORD", $fbwfcache)
Exit

This doesn't...(??)

Dim $p
If $CmdLine[0] = 0 Then Exit
$CmdLine[1] = $p
 $memory = MemGetStats()
  $fbwfcache = Round($memory[1] / $p / 1024)
 RegWrite("HKLM\SYSTEM\ControlSet001\Services\FBWF", "WinPECacheThreshold", "REG_DWORD", $fbwfcache)
Exit

when I put $cmdline in place of $p it produces a incorrect but noticable result.

this is the issue...

--> $fbwfcache = ($memory[1] / $p / 1024)

When a real number is used it works.

Perhaps someone could offer a suggestion, syntax or otherwise, on how to assign this variable with a cmd line switch. Thanks!

Just looking at that, $p should be equal to nothing because you didn't set it equal to anything, you did however set $CmdLine[1] equal to $p, which isn't equal to anything. You have to do it the other way around in the equal statement:

Dim $p
If $CmdLine[0] = 0 Then Exit
 $p = Number($CmdLine[1]);you had this backwards
 $memory = MemGetStats()
  $fbwfcache = Round($memory[1] / $p / 1024)
 RegWrite("HKLM\SYSTEM\ControlSet001\Services\FBWF", "WinPECacheThreshold", "REG_DWORD", $fbwfcache)
Exit

Try that. I also added the number function to convert the string to a numerical value.

[thuun]

Yes you are correct! thx!

However, this is where this gets more interesting...

Once corrected and compiled, It outputs much too large a result.

((from before)...when I put $cmdline in place of $p it produces a incorrect but noticable result.)

Given just:

$fbwfcache = ($memory[1] / $Cmdline[1] / 1024)

(adding Number func., no change)

On a 1GB System, if $Cmdline is 10, result should be about 100MB. It is not. Instead it produces 4294762599 (MB.) as a result.

If you persue a logical course, adding decimals to (the switch) reduce result, logic is not what you'll discover. It just goes haywire. \

If $CmdLine[0] = 0 Then Exit
 $memory = MemGetStats()
  $fbwfcache = Round($memory[1] / Number($CmdLine[1]) / 1024)
 RegWrite("HKLM\SYSTEM\ControlSet001\Services\FBWF", "WinPECacheThreshold", "REG_DWORD", $fbwfcache)
Exit

also malfunctions

I can't find an exmpl. to study,

any thoughts are appreciated!

Edited February 11, 2007 by thuun

[thuun]

too bad noone has a clue...

[The Kandie Man]

This works fine for me. What is the problem? I personally don't understand what the exact problem is that you are having.

If $CmdLine[0] = 0 Then Exit
$memory = MemGetStats()
$fbwfcache = Round($memory[1] / Number($CmdLine[1]) / 1024)
Msgbox(0,"Result:",$fbwfcache)

Try this script above, tell me how much RAM you have, and tell me what the message box tells you.

Edited February 12, 2007 by The Kandie Man

[thuun]

I believe using a dash in front of the number in the cmdline switch was causing the problem.

Prompting the output made this clear, good idea. Hopefully that's that. Thx. Kandy Man!

Edited February 13, 2007 by thuun