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Merge pull request #11217 from dan-masek:fix_issue_11206

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This commit is contained in:
Alexander Alekhin 2018-04-08 15:12:11 +00:00
commit 47e476c9cd
1 changed files with 21 additions and 3 deletions
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24
modules/python/src2/cv2.cpp
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@ -1621,7 +1621,13 @@ static PyObject *pycvSetMouseCallback(PyObject*, PyObject *args, PyObject *kw)
if (param == NULL) {
param = Py_None;
}
ERRWRAP2(setMouseCallback(name, OnMouse, Py_BuildValue("OO", on_mouse, param)));
static PyObject* last_param = NULL;
if (last_param) {
Py_DECREF(last_param);
last_param = NULL;
}
last_param = Py_BuildValue("OO", on_mouse, param);
ERRWRAP2(setMouseCallback(name, OnMouse, last_param));
Py_RETURN_NONE;
}
#endif
@ -1657,7 +1663,13 @@ static PyObject *pycvCreateTrackbar(PyObject*, PyObject *args)
PyErr_SetString(PyExc_TypeError, "on_change must be callable");
return NULL;
}
ERRWRAP2(createTrackbar(trackbar_name, window_name, value, count, OnChange, Py_BuildValue("OO", on_change, Py_None)));
static PyObject* last_param = NULL;
if (last_param) {
Py_DECREF(last_param);
last_param = NULL;
}
last_param = Py_BuildValue("OO", on_change, Py_None);
ERRWRAP2(createTrackbar(trackbar_name, window_name, value, count, OnChange, last_param));
Py_RETURN_NONE;
}
@ -1705,7 +1717,13 @@ static PyObject *pycvCreateButton(PyObject*, PyObject *args, PyObject *kw)
userdata = Py_None;
}
ERRWRAP2(createButton(button_name, OnButtonChange, Py_BuildValue("OO", on_change, userdata), button_type, initial_button_state != 0));
static PyObject* last_param = NULL;
if (last_param) {
Py_DECREF(last_param);
last_param = NULL;
}
last_param = Py_BuildValue("OO", on_change, userdata);
ERRWRAP2(createButton(button_name, OnButtonChange, last_param, button_type, initial_button_state != 0));
Py_RETURN_NONE;
}
#endif