Reading value from Config file to textbox

Hi All,

I have a Custom Dialog that has a few ports that the user must enter. I have some default values in them. If there a config file existing in the install directory, the ports must auto populate on the custom dialog. I have all the pieces of the code in place. I just wanted to know if there is a cleaner way of doing it. I am pasting excerpts for just one of the port. Will need to duplicate this code for the other ports also.

1)In my main nsi I have this. $PortNumber is a global variable. I grab the value of the port.

IfFileExists $INSTDIR\conf\tomcat.properties 0 pastFilecheck
MessageBox MB_OK "found the properties file"
${ConfigRead} "$INSTDIR\conf\my.properties" "port.shutdown=" $R1
MessageBox MB_OK "Port number is: $R1"
StrCpy $PortNumber $R1
pastFilecheck:

2)In my custom dialog .nsh file I have this. Check if port value exists or load the default value.

${If} $PortNumber == ''
StrCpy $PortNumber '9954'
MessageBox MB_OK "New port number is :$PortNumber"
${NSD_SetText} $hCtl_FoundationDialog_TextBox1 $PortNumber

${EndIf}
; === TextBox1 (type: Text) ===
${NSD_CreateText} 127.7u 37.54u 111.24u 12.31u "$PortNumber"
Pop $hCtl_FoundationDialog_TextBox1

It looks like you are trying to set the port number into the textbox before you have the textbox handle. Did you paste the code in the order it gets used?

Hi demiller9,

Yes, i pasted the code in the order it gets called. Basically the first part of the code is from a custom page leave function which comes before the actual page that has the port information. My code works fine, I only wanted to know if there is a cleaner way of doing this.

--Pavan

On the very first run, this line does nothing because the textbox handle is null:

Originally Posted by pkonduru View Post

${NSD_SetText} $hCtl_FoundationDialog_TextBox1 $PortNumber

I set the $PortNumber to 9954 if its empty/null.
So, on the first run it does show 9954.

That's weird, it shouldn't work but it does. 🧟