- ecode4 = SWIG_AsVal_int(obj3, &val4);
- if (!SWIG_IsOK(ecode4)) {
- SWIG_exception_fail(SWIG_ArgError(ecode4), "in method '" "DropSource__setCallbackInfo" "', expected argument " "4"" of type '" "int""'");
- }
- arg4 = static_cast< int >(val4);
+ if (obj3) {
+ ecode4 = SWIG_AsVal_int(obj3, &val4);
+ if (!SWIG_IsOK(ecode4)) {
+ SWIG_exception_fail(SWIG_ArgError(ecode4), "in method '" "DropSource__setCallbackInfo" "', expected argument " "4"" of type '" "int""'");
+ }
+ arg4 = static_cast< int >(val4);
+ }