@@ -328,3 +328,28 @@ UPyUserWidget::~UPyUserWidget()
 	// this could trigger the distruction of the python/uobject mapper
 	Py_XDECREF(py_uobject);
 }
+
+void UPyUserWidget::CallPythonUserWidgetMethod(FString method_name, FString args)
+{
+	if (!py_user_widget_instance)
+		return;
+
+	FScopePythonGIL gil;
+
+	PyObject *ret = nullptr;
+	if (args.IsEmpty())
+	{
+		ret = PyObject_CallMethod(py_user_widget_instance, TCHAR_TO_UTF8(*method_name), NULL);
+	}
+	else
+	{
+		ret = PyObject_CallMethod(py_user_widget_instance, TCHAR_TO_UTF8(*method_name), (char *)"s", TCHAR_TO_UTF8(*args));
+	}
+
+	if (!ret)
+	{
+		unreal_engine_py_log_error();
+		return;
+	}
+	Py_DECREF(ret);
+}
@@ -110,19 +110,27 @@ PyObject *py_ue_render_target_get_data(ue_PyUObject *self, PyObject * args)
 	if (!tex)
 		return PyErr_Format(PyExc_Exception, "object is not a TextureRenderTarget");
 
+
 	FTextureRenderTarget2DResource *resource = (FTextureRenderTarget2DResource *)tex->Resource;
 	if (!resource)
 	{
 		return PyErr_Format(PyExc_Exception, "cannot get render target resource");
 	}
 
 	TArray<FColor> pixels;
+
+	if (!resource->IsSupportedFormat(tex->GetFormat()))
+	{
+		return PyErr_Format(PyExc_Exception, "unsupported format for render texture");
+	}
+
+
 	if (!resource->ReadPixels(pixels))
 	{
 		return PyErr_Format(PyExc_Exception, "unable to read pixels");
 	}
 
-	return PyByteArray_FromStringAndSize((const char *)pixels.GetData(), (Py_ssize_t)(tex->GetSurfaceWidth() * 4 * tex->GetSurfaceHeight()));
+	return PyByteArray_FromStringAndSize((const char *)pixels.GetData(), (Py_ssize_t)(pixels.GetTypeSize() * pixels.Num()));
 }
 
 PyObject *py_ue_render_target_get_data_to_buffer(ue_PyUObject *self, PyObject * args)
 
@@ -44,6 +44,9 @@ class UPyUserWidget : public UUserWidget
 	UPROPERTY(EditAnywhere, Category = "Python", BlueprintReadWrite, meta = (ExposeOnSpawn = true))
 	bool PythonPaintForceDisabled;
 
+	UFUNCTION(BlueprintCallable, Category = "Python")
+	void CallPythonUserWidgetMethod(FString method_name, FString args);
+
 private:
 	PyObject *py_user_widget_instance;
 	// mapped uobject, required for debug and advanced reflection
Original file line number	Diff line number	Diff line change
`@@ -110,19 +110,27 @@ PyObject py_ue_render_target_get_data(ue_PyUObject self, PyObject * args)`
`110`	`110`	`if (!tex)`
`111`	`111`	`return PyErr_Format(PyExc_Exception, "object is not a TextureRenderTarget");`
`112`	`112`
	`113`	`+`
`113`	`114`	`FTextureRenderTarget2DResource resource = (FTextureRenderTarget2DResource )tex->Resource;`
`114`	`115`	`if (!resource)`
`115`	`116`	`{`
`116`	`117`	`return PyErr_Format(PyExc_Exception, "cannot get render target resource");`
`117`	`118`	`}`
`118`	`119`
`119`	`120`	`TArray<FColor> pixels;`
	`121`	`+`
	`122`	`+ if (!resource->IsSupportedFormat(tex->GetFormat()))`
	`123`	`+ {`
	`124`	`+ return PyErr_Format(PyExc_Exception, "unsupported format for render texture");`
	`125`	`+ }`
	`126`	`+`
	`127`	`+`
`120`	`128`	`if (!resource->ReadPixels(pixels))`
`121`	`129`	`{`
`122`	`130`	`return PyErr_Format(PyExc_Exception, "unable to read pixels");`
`123`	`131`	`}`
`124`	`132`
`125`		`- return PyByteArray_FromStringAndSize((const char )pixels.GetData(), (Py_ssize_t)(tex->GetSurfaceWidth() 4 * tex->GetSurfaceHeight()));`
	`133`	`+ return PyByteArray_FromStringAndSize((const char )pixels.GetData(), (Py_ssize_t)(pixels.GetTypeSize() pixels.Num()));`
`126`	`134`	`}`
`127`	`135`
`128`	`136`	`PyObject py_ue_render_target_get_data_to_buffer(ue_PyUObject self, PyObject * args)`