public void MediaFileDragEnter(string[] filenames, int w)
{
var framesSampleQuarterScreen = (int)Dimdim.convert_AbsX2Frame(w / 4);
dragAndDropMan.NewFilesDragged(filenames, framesSampleQuarterScreen);
___UiTransactionBegin();
UiObjects.SetDraggyCoordinates(
mode: dragAndDropMan.ModeForUiDraggy,
mouseX: mouseX,
mouseXOffset: framesSampleQuarterScreen / 2,
text: dragAndDropMan.DraggyText,
frameLength: framesSampleQuarterScreen,
hasAudio: true);
___UiTransactionEnd();
}