Constant xcb::ffi::xproto::XCB_GC_SUBWINDOW_MODE

pub const XCB_GC_SUBWINDOW_MODE: xcb_gc_t

For ClipByChildren, both source and destination windows are additionally clipped by all viewable InputOutput children. For IncludeInferiors, neither source nor destination window is clipped by inferiors. This will result in including subwindow contents in the source and drawing through subwindow boundaries of the destination. The use of IncludeInferiors with a source or destination window of one depth with mapped inferiors of differing depth is not illegal, but the semantics is undefined by the core protocol.