GdkVisibilityState
Specifies the visiblity status of a window for a GdkEventVisibility.
Value | Symbolic name | Description |
  0 | Gdk::VISIBILITY_UNOBSCURED | The window is completely visible. |
  1 | Gdk::VISIBILITY_PARTIAL | The window is partially visible. |
  2 | Gdk::VISIBILITY_FULLY_OBSCURED | The window is not visible at all. |