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How to make a drag and drop actor for iPhone?

Did you try Mouse down (Drag Enable)? This is built into the mouse down event and cannot be called independently, and if you do, you have to have some kind of script. you can cheat this way:
Script

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//Haha, no script! In your face!

Only do this if you are lazy with typing XD. If this does not work for you, try this:
Mouse down

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FollowMouse("Event Actor", BOTH_AXIS);

Mouse up

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FollowMouse("Event Actor", NONE_AXIS);

I like this method because you can specify which coordinate axis you want the actor to follow.
I hope this works with Iphone, if it doesn't, I don't know what will.

It dose a mouse cursor which is great. But I want to click a actor, hold, drag and drop.

Create 3 Actor variable named "MouseB" and "Initx" and "Inity"
On mouse down:

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MouseB=1;
Initx=xscreen-xmouse;
Inity=yscreen-ymouse;

On mouse up:

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MouseB=0;

now in draw actor:

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if(MouseB)
{
    xscreen=xmouse+Initx;
    yscreen=ymouse+Inity;
}

Voila!