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-rw-r--r--generic/tkPack.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/generic/tkPack.c b/generic/tkPack.c
index 88a4b2d..d46d64c 100644
--- a/generic/tkPack.c
+++ b/generic/tkPack.c
@@ -600,10 +600,14 @@ ArrangePacking(
/*
* If the master has no slaves anymore, then don't do anything at all:
- * just leave the master's size as-is.
+ * just leave the master's size as-is, but signal the master with the
+ * <<GeometryManager>> virtual event.
+ * Otherwise there is no way to "relinquish" control over the master
+ * so another geometry manager can take over.
*/
if (masterPtr->slavePtr == NULL) {
+ TkSendVirtualEvent(masterPtr->tkwin, "GeometryManager", NULL);
return;
}