`TfpgFileGrid`
pl	ro	OnRowChange
pl	ro	OnDoubleClick
pl	ro	OnShowHint

`TfpgCustomGrid`

`TfpgBaseGrid`

`TfpgWidget`
		OnDragEnter
		OnDragLeave
		OnDragDrop

`TfpgWindow`

`TfpgWindowImpl`

`TfpgX11Window`

`TfpgWindowBase`

`TfpgComponent`