Index: /branches/eam_branches/ipp-20230313/Ohana/src/libkapa/src/IOfuncs.c
===================================================================
--- /branches/eam_branches/ipp-20230313/Ohana/src/libkapa/src/IOfuncs.c	(revision 42538)
+++ /branches/eam_branches/ipp-20230313/Ohana/src/libkapa/src/IOfuncs.c	(revision 42539)
@@ -89,4 +89,8 @@
   if (Nbytes == 0) {
     return TRUE;
+  }
+  if (Nbytes < 0) {
+    fprintf (stderr, "error in kapa communication (KiiScanMessage) %s\n", buffer);
+    return FALSE;
   }
 
Index: /branches/eam_branches/ipp-20230313/Ohana/src/libkapa/src/KapaWindow.c
===================================================================
--- /branches/eam_branches/ipp-20230313/Ohana/src/libkapa/src/KapaWindow.c	(revision 42538)
+++ /branches/eam_branches/ipp-20230313/Ohana/src/libkapa/src/KapaWindow.c	(revision 42539)
@@ -301,5 +301,8 @@
   KiiSendCommand (fd, 4, "GSTY"); 
   
-  KapaScanGraphData (fd, data);
+  if (!KapaScanGraphData (fd, data)) {
+    fprintf (stderr, "error getting graph data KapaGetGraphData (sent GSTY)\n");
+    return FALSE;
+  }
 
   KiiWaitAnswer (fd, "DONE");