How to create drag and drop ??

[RCL]

Hello Again:

I would like to drag and drop an object. That is, left mouse button down-->drag. Left mouse button up-->drop. Not sure how to accomplish this with the mouse click event.

I would like the object to drop in a specific area or on a specific place. Like match two similar pictures by dragging one on top of the other.

Are there any examples of drag and drop? I've search the forum and looked at a few tutorials but maybe I'm not referring to this event-action properly.

Thanks for your help.

[Jaffob]

My Drag Object was made just for this.

EDIT: I guess you can't use extensions. Here is what to do:

When the object is clicked set an internal flag on. If this flag is on, set the object's position to XMouse, YMouse. When the mouse is released (Negated "Repeat While Mouse is Pressed"), set the flag off.

[RCL]

Hi Jaffob:

Thanks. I think that I need some more help with this concept. When you say "flag", do you mean to make an object variable and set it to "1" when the mouse is clicked?

Then make a negate event and set the object variable to 0?

I'm just not getting it. Sorry.

[RCL]

Hmm,

Is there anyone who can tell me how to make a drag and drop event with TGF?

TIA

[nivram]

User Clicks with Left Button on Active
Active: Set Flag 0 On

Active Internal Flag 0 is On
Active: Set X Postion to X Mouse
Set Y Position to Y Mouse

(Negate)Repeat While Left Mouse Key is Pressed
Active: Set Flag 0 Off

[RCL]

nivram:

I want to thank you for taking the time to help me. Your instructions were a bit challenging, but as I worked through the software, I was able to (finally) create a drag n drop. THANK YOU.
I've been trying to figure this out for days. I worried that my demo time would run out before I even got a simple thing done. Whew! :-)

[nivram]

Your welcome.

[jotek]

this explanation really helped me as well!

but what if you want to click to pick up an object and have it follow the mouse. then click again to drop it off at a certain position. the problem here is that MMF reads the object as being clicked and set to mouse position again.

[Popcorn]

To do that you can toggle the object's flag. That will automatically set the flag off if it is on, or on if it off.

Do the same events as nivram had, but change 'set flag' to 'toggle flag'

You woudn't need the last event either.