* src/xterm.c (xm_get_drag_window_1): New function.
(xm_get_drag_window): Cache the window. If it already exists,
just return it.
(xm_setup_dnd_targets): If a BadWindow error occurs, re-create
the Motif drag window.
* src/xterm.h (struct x_display_info): New field
`motif_drag_window'.
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Copyright (C) 2001-2022 Free Software Foundation, Inc.
See the end of the file for license conditions.
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