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-rw-r--r--src/tkbltGrAxisOption.C6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/tkbltGrAxisOption.C b/src/tkbltGrAxisOption.C
index d0f78e8..e8b1f30 100644
--- a/src/tkbltGrAxisOption.C
+++ b/src/tkbltGrAxisOption.C
@@ -63,7 +63,11 @@ static int AxisSetProc(ClientData clientData, Tcl_Interp* interp,
return TCL_OK;
Graph* graphPtr = getGraphFromWindowData(tkwin);
- ClassId classId = (ClassId)(long(clientData));
+#ifdef _WIN64
+ ClassId classId = (ClassId)((long long)clientData);
+#else
+ ClassId classId = (ClassId)((long)clientData);
+#endif
Axis *axisPtr;
if (graphPtr->getAxis(*objPtr, &axisPtr) != TCL_OK)