Help: Anyone have a simple demo treeview drag and drop?

[(X)]

I've been bush-wacking my way through my 20th trial with ChatGPT and I feel so close!

All I want is to be able to do is click and drag in a GFA controlled treeview environment like we are used to in Windows Explorer.

This guy did it in VB6: vbcity.com/forums/t/63010.aspx

But I am thinking it is more of a matter of Message interception using a treeview callback function/procedure.

I'm getting a lot of crashing or unresponsive treeview.

[(X)]

I am getting closer with an old demo (https://gfawhelp.gfa.net/gfa32.htm) and GFA's own method obj.HitTest(x,y)

HitTest Method
Purpose
Returns a value when the mouse is located at the coordinates of x and y.

Syntax
value = Object.HitTest(x!, y!) // Uses Pixels, if your (x,y) is in Twips use TwipstoPixelX(x) and TwipstoPixelY(y) to convert to Pixels

value = MonthView.HitTest(x!, y!, Date As Date)

Object:Label, ListView, TreeView
x!, y!:Single exp

TreeView - Returns a reference to a Node object located at the coordinates x and y. If no object exists at the specified coordinates, the HitTest method returns Nothing.

[dragonjim]

I seem to remember reading somewhere that drag and drop was never implemented for OCX controls.

The only way you might be able to do it is by using the related Message and MessageProc events and look for the relevant messages.

This article may help: learn.microsoft.com/en-us/windows/win32/controls/drag-a-tree-view-item

I admit, I haven't read it through myself but it might set you on the right path.

[(X)]

I am making my way through the motions of performing tests to: move, copy and cut treeview branches based on shift|ctrl + mouse_down, mouse_move and mouse_up input. One tricky part is how to keep all sub-branches/children together. I am working on a recursive algorithm.

I keep picturing this treeview based environment as a "Catch-All" Repository 'to which' and 'from which' I can save and retrieve: code, formulas, constants, help documentation and where I can layout the basic information needed to launch auto-builds of fully fledged applications|games|simulations all managed by an intelligent underlying construct that keeps everything organized, does the heavy lifting and speeds up development.

[(X)]

I am making some progress with a library containing code to popup a special treeview. I am hoping I can put everything I need into this lib so a programer can easily list all procedures, variables and values, controls and their properties, everything you might want to know or modify or add to a program.