CODEWITHSUNDEEP
winapidrag-and-dropfindwindowclipboarddataidataobject
ThunderFrame
ThunderFrame

Reputation: 9461

How can I determine the source process/hWnd for a Drag and Drop operation from drop target

My C# Windows application accepts drag operations, and I'd like to be able to identify the hWnd and/or Process ID of the source. Is this possible, and how would I go about determining it?

I've tried getting the active window when the drag-over commences, but if the user has activated other windows during the drag operation (for example, by pressing Alt+Tab one or more times), that isn't very reliable.

I've also tried inspecting the formats on the IDataObject, but that signature isn't enough to reliably identify the source window.

Upvotes: 1

Views: 627

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