• You are here:  
  • Home
  • Q&A
  • Q&A
  • PowerBuilder
  • Does GetForegroundWindow work differently in 64 Bit EXE?

Subscribe via RSS
Toggle Submenu
  1. Categories
  2. Recent
  3. Tags
View Replies (2)

Resolved Does GetForegroundWindow work differently in 64 Bit EXE?

  1. How-to
0
Votes
Undo
  1. Tom Peters
    Tom Peters
  2. PowerBuilder
  3. Thursday, 20 September 2018 16:19 PM UTC

Hello All!

I implemented GetForegroundWindow in my PB 2017 R3 application as follows:

Function ulong GetForegroundWindow( ) Library "USER32.DLL"

I call it, capturing the return into an unsignedlong.

This all works fine in the IDE (32 bit), but when I run the 64 bit EXE, GetForegroundWindow always returns 0.

Should I do something different?

Thanks,

Tom

  1. PowerBuilder (Appeon)
Use of PBMaxBlobSize dbparm
Datawindow from Json
Accepted Answer
René Ullrich
René Ullrich Accepted Answer Pending Moderation
  1. Friday, 21 September 2018 05:19 AM UTC
  2. PowerBuilder
  3. # Permalink

GetForegroundWindow returns HWND handle. I think this is a 64 bit value for 64 bit applications . Try using LongLong as return type.

Comment
Tom Peters
  1. Tom Peters
  2. Monday, 24 September 2018 17:44 PM UTC
Thanks!
  1. Helpful
There are no comments made yet.
Responses (2)
Chris Pollach @Appeon
Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Monday, 24 September 2018 19:27 PM UTC
  2. PowerBuilder
  3. # 1

Hi Tom;

   If a LongLong does not work, try using a return data type of  Longptr

HTH

Regards ... Chris

Comment
Tom Peters
  1. Tom Peters
  2. Wednesday, 26 September 2018 12:54 PM UTC
Hi Chris - LongLong did work, but I will make note of this for future API calls. Thanks!
  1. Helpful
Chris Pollach @Appeon
  1. Chris Pollach @Appeon
  2. Wednesday, 26 September 2018 13:42 PM UTC
Thanks for the feedback Tom .. glad it now works! :-)



Tip: Use the Environment object class and check the "processbitness" property in your App's to know which flavour of GetForegroundWindow to use at run-time. ;-)
  1. Helpful
There are no comments made yet.
  • Page :
  • 1


There are no replies made for this question yet.
However, you are not allowed to reply to this question.