LiveCode Forums.

Posted: **Thu Mar 09, 2023 11:01 am**

Working on Windows 11 Pro Build 22000.1574
LiveCode Version 9.6.9-rc-1 Build 15600

Since two days ago, all my stacks that are using "on dragdrop" to drop files to a field that records their filename are no longer receiving the message.

Entering the card with the mouse kept down and the file selected, the background color of ths stack is hilited.
Then the mousePointer turns to an insert icon with "+ copy" label and the icon of the file type.

When dropping the text file to the destinatino object (here it is field "input"), a new field is created containing the text of the dropped file and LC sends one "deleteGraphic" message. (Nothing is deleted here...)

When dropping another LiveCode stack, the stack is opened in a new window.

Other file types such as pdf cannot be dropped. The mousepointer shows the denial symbol.

Checking the "dragdrop" message, it does not fire while the "dragEnter" message is recognized.

Here is my text script. I am attaching a test stack together with the text file I am trying to drop.
Expected is that it presents the filename only.

I hope I made some silly mistakes, but the problem exists for all my stacks and prohibits essentially work.

If no one else can see the problem I wonder what it is. A bug in Windows? A but in LiveCode? Some settings? Before filing a bug report, I need to further analyze the problem. What error message to detect and receive and how?

Code: Select all

# Script: Test script for drag and drop
# DT: 230309-1100
# User: RH
# Desc: Dragdrop message not received

local sPaneColor = "white"
local sPaneColorEnter = "255,231,256"

on dragdrop
   put CR& "dragDrop" after field "output"
   put the dragData["files"] into tDragData
   set the text of me to tDragData
   set the backgroundcolor of me to sPaneColor
end dragdrop

on dragEnter
   put CR& "dragEnter" after field "output"
   put keys(the dragData) into tKeys
   put CR& tKeys after field "output"
   if "files" is in tKeys then
      set the dragAction to "copy"
      if the result is not empty then put CR&the result after field "output"
      set the backgroundcolor of me to sPaneColorEnter
   else
      set the dragAction to "none"
      if the result is not empty then put CR&the result after field "output"
   end if
end dragEnter

on dragLeave
   put CR& "dragLeave" && the dragAction after field "output"
   set the dragAction to "none"
   put CR& "dragLeave" && the dragAction after field "output"
   set the backgroundcolor of me to sPaneColor
end dragLeave

Posted: **Thu Mar 09, 2023 3:06 pm**

I have to add that I just tested this on another computer and "dragdrop" is working.
So, what in a computer system (Windows) could prevent the message from being sent?

Posted: **Thu Oct 31, 2024 12:06 pm**

The situation does not change. The problem continues.
The "dragdrop" messages is never sent.

A workaround: Just place use the message "dragEnter" and work from there:

Code: Select all

on dragEnter
   put the dragdata["files"] into field "dragData"
end dragEnter

LiveCode Forums.

Dragdrop message no longer working using Win 11

Dragdrop message no longer working using Win 11

Re: Dragdrop message no longer working using Win 11

Re: Dragdrop message no longer working using Win 11