1Issue #19373: Patch to Tk 8.5.15 to correct refresh problem on OS x 10.9. 2From upstream checkin https://core.tcl.tk/tk/info/5a5abf71f9 3 4--- tk8.5.15/macosx/tkMacOSXDraw.c 2013-09-16 09:41:21.000000000 -0700 5+++ Tk_Source_Code-5a5abf71f9fdb0da/macosx/tkMacOSXDraw.c 2013-10-27 13:27:00.000000000 -0700 6@@ -1688,6 +1688,7 @@ 7 { 8 if (dcPtr->context) { 9 CGContextSynchronize(dcPtr->context); 10+ [[dcPtr->view window] setViewsNeedDisplay:YES]; 11 [[dcPtr->view window] enableFlushWindow]; 12 if (dcPtr->focusLocked) { 13 [dcPtr->view unlockFocus]; 14