How to implement a drag&drop the file to Pinboard from other app?

Hello,

I working on the filer like application “CLFiler” and have a problems with drag& drop a files from my “CLFiler” to Pinboard.
Using the !WimpMon I watched the messages which sent original filer to Pinboard and try to implement the same workflow.
Initially after drag is finished the Filer send Message_FilerSelection to Pinboard and then send Message_DataLoad.

I do same things and sometimes my file is dragged and sometimes is not.
I found that after I drag something from original filer to Pinboard then I can drag from CLFiler also but position is wrong (it is not when mouse pointed after drop).
I tried to send Message_FilerSelection from my app also but it not helps a much. With the Message_FilerSelection the file is dragged but only at left-top corner not at mouse pointer position.

There is a log from !WimpMon message for drag&drop from CLFiler (dragged “ChatCube-31”) and from original Filer (dragged “!CLFiler”). The messages almost the same (only coordinates slightly different) but icons places at different positions.
I hardcoded the start/end row/column positions in the Message_FilerSelection as is seems not used by Pinboard and I don’t know what to put here..

I afraid that Pinboard works correctly only with original Filer and detect that task does the drag&drop.

Filer received acknowledgement of message Message_DataLoad from Filer
with reference &5AA in reply to message with reference &0
for file ‘HostFS::HostFS.$.CLF.!CLFiler’
of type Application and estimated size -1
to point (1316,1674) in work area of window &201734D9


I suspect you are sending the Message_DataLoad with User_Message and not User_Message_Recorded

@Stuart Swales

No, I send the Message_DataLoad with User_Message_Recorded, there no message “CLFiler received acknowledgement of message Message_DataLoad from CLFiler” in the !WimpMon output because I not added the CLFiler task to !WimpMon.
!WimpMon crashed when I add the CLFiler but I send it with User_Message_Recorded and it is shown in the !WimpMon output – “Pinboard received recorded message Message_DataLoad from CLFiler”.