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-rw-r--r--src/xselect.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/xselect.c b/src/xselect.c
index 96c8b9c4c47..a502a74f904 100644
--- a/src/xselect.c
+++ b/src/xselect.c
@@ -126,6 +126,20 @@ static Lisp_Object Qforeign_selection;
/* Defined in keyboard.c. */
extern unsigned long last_event_timestamp;
+/* This is an association list whose elements are of the form
+ ( SELECTION-NAME SELECTION-VALUE SELECTION-TIMESTAMP FRAME)
+ SELECTION-NAME is a lisp symbol, whose name is the name of an X Atom.
+ SELECTION-VALUE is the value that emacs owns for that selection.
+ It may be any kind of Lisp object.
+ SELECTION-TIMESTAMP is the time at which emacs began owning this selection,
+ as a cons of two 16-bit numbers (making a 32 bit time.)
+ FRAME is the frame for which we made the selection.
+ If there is an entry in this alist, then it can be assumed that Emacs owns
+ that selection.
+ The only (eq) parts of this list that are visible from Lisp are the
+ selection-values. */
+static Lisp_Object Vselection_alist;
+
/* Define a queue to save up SELECTION_REQUEST_EVENT events for later