[VB6] Register any control as a drop target that shows the Explorer drag image

[jpfa]

I'm not running the IDE as administrator. I don't know how to register the form, if you mean register it using regvr32. Isn't the form created at runtime by the vb6 runtime?

I use other controls in the form as drop targets on other instances of your class and they work as expected.

If I set the form as drop target the drag image is correctly displayed on the regions not covered by other controls (including WMP), but I just noticed that if I release the left button of the mouse there a wait cursor is displayed for a few seconds but the Drop event is not triggered. The DropMode of the form is set to None, as I believe it should be.

If I instead drag the file into the region ocupied by the WMP control the "forbidden" icon is displayed. The control doesn't expose Ole events (as expected from windowless controls), so I have no way to set its DropMode to None or use the control's native Ole events instead of your class.

Otherwise this control has behavied as expected. I miss some functions that could be really useful. Among them one to tell me if a file is playable instead of displaying a warning, one to chose what audio stream in the container to use, one to display subtitles/captions and their displaying options, one to extract specific streams from the container, a frame server...