If Else

6 posts

zip_doo_dahApril 29, 2003 at 5:31 PM#

If Else

Hello everyone.

I'm using InstallOptions to gather a parameter from the user and can't quite figure out how to execute an if/else structure. I'm asking the user whether they are using Com1, Com2, or USB and I want to set an INI file parameter to 1, 2, or 5 depending on the response. How might one do this? Thanks for the help.

-Justin

Joost VerburgApril 29, 2003 at 6:29 PM#

Example:

ReadIniStr $R0 "yourfile.ini" "Field 1" "State"



StrCmp $R0 "1" 0 +3

  ;COM1

  WriteIniStr "anotherfile.ini" "Use Port" "COM1"

  Goto done



ReadIniStr $R0 "yourfile.ini" "Field 2" "State"



StrCmp $R0 "1" 0 +3

  ;USB

  WriteIniStr "anotherfile.ini" "Use Port" "USB"

  Goto done



done:

Afrow UKApril 30, 2003 at 1:16 PM#edited April 30, 2003 at 3:30 PM

The +3 works as a relative jump, ignoring spaces between commands and ignoring comments.

So,

StrCmp $R0 "1" 0 +3

If $R0 is 1 then goto 0 (carry on)
Else (if $R0 is anything else but 1,) then skip the next 2 commands onto the 3rd command.

-Stu

Joost VerburgApril 30, 2003 at 1:24 PM#

It goes to the third command after the jump, so it skips two, not three.

Afrow UKApril 30, 2003 at 3:28 PM#

LOL yes

-Stu

zip_doo_dahMay 2, 2003 at 5:30 PM#

Thanks! Worked like a charm!
-Justin