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#180757 - 2007-09-20 01:17 PM environment variable
BradV BradV Seasoned Scripter Registered: 2006-08-16 Posts: 687 Loc: Maryland, USA	Hello All, I must be missing something simple. I have a Windows XP Pro SP 2 system using kixtart vs 4.53. I have read ProfileImagePath from the registry where the value starts with "%SystemDrive%." Every time I try to use this variable, kixtart isn't substituting "C:" for "%SystemDrive%." For example, I have the value from ProfileImagePath in the variable, $strPath and do the following: Code: $strFilename = Dir($strPath + "\.") $strFilename is always blank. I even tried to pull the environment variable out of the front of the variable and put it in its own variable to try and force the evaluation, but that did not work as follows: Code: $strVariable = Substr($strPath,1,Instr(Substr($strPath,2),"%")+1) ? "strVariable is: " + $strVariable All I get out is %SystemDrive%. What am I doing wrong? Thanks! Brad V
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#180758 - 2007-09-20 01:49 PM Re: environment variable [Re: BradV]
Mart Mart KiX Supporter Registered: 2002-03-27 Posts: 4673 Loc: The Netherlands	How about: Quote: EXPANDENVIRONMENTVARS Action Expands any environment variables inside a string to the corresponding plain text value. Syntax EXPANDENVIRONMENTVARS ("string") Parameter String The string you want to expand. Returns The expanded string. Example $Value = ReadValue("HKLM\System\CurrentControlset\Control\Windows", "SystemDirectory" ) ? ExpandEnvironmentVars( $Value ) It's in the manual $;\)$ _________________________ Mart - Chuck Norris once sold ebay to ebay on ebay.
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#180759 - 2007-09-20 03:22 PM Re: environment variable [Re: Mart]
Glenn Barnas Glenn Barnas KiX Supporter Registered: 2003-01-28 Posts: 4402 Loc: New Jersey	Just to clarify Mart's reference, if you build a string like this: $sTmp = "%WINDIR%" + " is the windows root folder." + @CRLF Kix will automatically reference the contents of the %WINDIR% variable. When you read the value from the registry, and the registry value type is REG_SZ, it will return the environment variable name, just as it appears in the data in the registry. Since the env-var is embedded in the string, you need to use the ExpandEnvironmentVars(). Often, we use something like: Code: $Value = ExpandEnvironmentVars(ReadValue($Key)) Keep in mind that some registry values are the type REG_EXPAND_SZ. These can hold an environment variable, but the act of reading this value performs the required environment variable replacement automatically. Using the medhod above provides no advantage, but doesn't hurt either. I point this out because sometimes you read a value and get what you expect, and other times you get a raw environment var - the difference is the value data type. Glenn _________________________ Actually I am a Rocket Scientist! $\:D$
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#180764 - 2007-09-20 08:30 PM Re: environment variable [Re: Glenn Barnas]
BradV BradV Seasoned Scripter Registered: 2006-08-16 Posts: 687 Loc: Maryland, USA	Duh - I told you I was overlooking something simple! $\:\)$ Thanks!
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