c# Drag and drop functionality

Question

Hi there! In short, I want to make an application in which users can drag a file form their finder (mac), or their computer explorer (PC) to a location on my application, and then have that dragged file be loaded into the application.

I don't have any kind of access to any drag and drop events (Supposedly), as I am using a rendering engine for all the GUI. (This is being made in Unity3D, to be exact)

Anyways, what I REALLY need to know, is how to get the file path of whatever file the user happens to be dragging at any particular time. I can take care of detection of where the file was dragged, loading the file into the app, etc.

Any help?

P.S: Even though I may not have access to drag and drop events, classnames, and etc, it is still helpful to hear about them!

Answer 1

It is pretty easy to do with WinForms (there are events for that there).

Since you are not using WinForms, you need to use WinAPI. You can register your window to accept drag&drop events using the RegisterDragDrop Function and the IDropTarget Interface (or use your own).

[DllImport("ole32.dll")]
static extern int RegisterDragDrop(IntPtr hwnd, IDropTarget pDropTarget);