`TfpgFileNameEdit`
pl	ro	OnButtonClick
pl	ro	OnShowHint
pl		OnFilenameSet

`TfpgBaseEditButton`

`TfpgAbstractPanel`

`TfpgWidget`
		OnDragEnter
		OnDragLeave
		OnDragDrop

`TfpgWindow`

`TfpgWindowImpl`

`TfpgX11Window`

`TfpgWindowBase`

`TfpgComponent`