Reading INI file is not working using IniRead in AHK - autohotkey

Question

I am trying to read a INI file and get the values from it using AHK. However, the read is not successful and I am getting the default value from the call every time.
Here is the code I used :-
ReadIniFile(IniFileName, SectionName, KeyName,ByRef Value)
{
If FileExist(IniFileName)
{
MsgBox File found ; this comes
}
IniRead, Value, IniFileName, SectionName, KeyName , Default
MsgBox %Value% %IniFileName% %KeyName% %SectionName% ; Value comes as 'Default'
}
The output is :-
Default C:\Users\barmans\Desktop\ECU.h ININame GeneralSettings
The function call is :
ReadIniFile(HeaderFileName, "GeneralSettings", "ININame", AutoTestScript)
The INI is in format :-
[GeneralSettings]
ECU=ABS8_B
ININame=ABS8_B_Test.ini
KBDiagPath=C:\KBApps\Knorr-Bremse\KB Diag
RunCount=0
[LogSettings]
LogFileName=ABS8_B_Report.log
TraceLevel=1
Any guidance is appreciated.

Answer 1

As you did in MsgBox, you have to enclose your variables with % percent signs.
If the documentation tells you to state a "name", "value" or anything like that, you'll need an actual string or integer. Other than that, sometimes you're asked to state a "variable name", in which case you obviously must not use % - as in function calls.
So, your iniread will look like:
IniRead, Value, %IniFileName%, %SectionName%, %KeyName%, Default
for more detailed information, visit http://ahkscript.org/docs/Variables.htm. Tho I do not see anything about the use of variables in command there