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Reading 64-bit registry as a 32-bit PB 2019 application
  1. Issue
0 Votes
  1. François Molinas
  2. PowerBuilder
  3. Thursday, 4 July 2019 03:08 PM UTC

Hello community,

 

My 32-bit PB app needs to check the registry settings for a third party 64-bit application.

This community and the bug tracker both state that PB2017 won't allow me to do it.

Come PB2019... As far as I understand it, the New Features document specifically states that this problem has been addressed. But I still fail to access the non-redirected HKLM\Software registry section.

Here is a barebones demo, to be pasted to an Application Open script:

String	las_std[], las_wow[]
String	ls_tit, ls_msg
Environment	lenv

GetEnvironment(lenv)
ls_tit = String(lenv.ProcessBitness) + " bits - PB version "
ls_tit += String(lenv.PBMajorRevision) + "." + String(lenv.PBMinorRevision) + "." + String(lenv.PBFixesRevision) + "." + String(lenv.PBBuildNumber)

ls_msg = "Key count under HKLM\Software:~r~n"
RegistryKeys("HKEY_LOCAL_MACHINE\SOFTWARE", las_std)
ls_msg += "~r~nStd = " + String(UpperBound(las_std))
RegistryKeys("HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node", las_wow)
ls_msg += "~r~nWoW = " + String(UpperBound(las_wow))

MessageBox(ls_tit, ls_msg)
HALT CLOSE

I compiled this code into 32- and 64-bit apps with PB 2017R2 (build 1858) and PB 2019 (build 2082). 32-bit apps show the same count, and 64-bit apps show differing counts. PB version makes no difference in the numbers shown.

 

Is there an option or a setting I am missing ?

 

Regards,

François

References
  1. https://www.appeon.com/standardsupport/search/view?id=1093
  2. https://community.appeon.com/index.php/qna/q-a/read-64bit-registry-from-32bit-pb-application
  3. https://www.appeon.com/support/documents/appeon_online_help/pb2019/whats_new/ch01s06.html
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