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Resolved Receiving WM_COPYDATA messages

  1. How-to
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  1. Stèphan Eizinga
    Stèphan Eizinga
  2. PowerBuilder
  3. Friday, 12 July 2019 12:05 PM UTC

Hello,

I want to send an ‘WM_COPYDATA’ message from an C# application to an PowerBuilder application. I have created an struct with the message and other C# can read the message.

How can I catch the ‘WM_COPYDATA’ message from PowerBuilder? There is no pbm_copydata event ID.

Thanks,

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Accepted Answer
Michael Kramer
Michael Kramer Accepted Answer Pending Moderation
  1. Friday, 12 July 2019 13:13 PM UTC
  2. PowerBuilder
  3. # Permalink

Hi Stèphan, You can look for Message.Number = 74 (0x004A = 74) in Other event.

if Message.Number = 74 then
   event ue_myCopyData(. . .)
end if

HTH /Michael

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Responses (2)
Roland Smith
Roland Smith Accepted Answer Pending Moderation
  1. Friday, 12 July 2019 20:11 PM UTC
  2. PowerBuilder
  3. # 1

Can you use WM_NOTIFY instead? There is a pbm_notify. I use it with the Scintilla text editor control.

Then you can use this function to copy data into a structure:

Subroutine CopyNotification(Ref scNotification Destination, ulong Source, long Length) Library "kernel32.dll" Alias For "RtlMoveMemory"

scNotification scn

// copy structure to local
CopyNotification(scn, lparam, 96)

 

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