InstallDirRegKey - NSIS Forums

TobWen
27th April 2004 15:09 UTC

InstallDirRegKey
Hi there,

ATM I am writing an update-script, which reads the installations-path of "myapp" from the registry:

InstallDirRegKey HKLM SOFTWARE\MYAPP "PATH"

This returns "C:\program files\path"

Now I would like to ask the user, if the path is correct:

DirText "The installer has detected the path bla

But I want the dialog of "DirText" to show the subdirectory, the update should be installed to:
"C:\program files\path\update".
ATM the dialog only shows "C:\program files\path"

Is it possible to modify the "variable"?

Best regards,
Tobias

Joost Verburg
27th April 2004 16:31 UTC

Use StrCpy.

StrCpy $MYVAR $MYVAR\path

TobWen
27th April 2004 17:51 UTC

does not work outside a Section :-(

ah, I have found a workaround - THANKS!

Joost Verburg
27th April 2004 18:05 UTC

You'll have to put it in the .onInit function of course.

TobWen
27th April 2004 18:08 UTC

1. InstallDirRegKey HKLM SOFTWARE\MYAPP "PATH"
2. .onInit fuction
3. StrCpy $MYVAR $MYVAR\path

correct?

Joost Verburg
27th April 2004 18:10 UTC

Function .onInit
  StrCpy $MYVAR $MYVAR\path
FunctionEnd

TobWen
27th April 2004 18:11 UTC

okay, thanks :-)