I look at Instance API page, but It didn't have Instace:new function in function part.
(https://developer.roblox.com/en-us/api-reference/class/Instance)
That's the instance class, what you're looking for is probably the Instance datatype
https://developer.roblox.com/en-us/api-reference/datatype/Instance
Related
I'm trying to do the following:
The Page Object has one Route Object, which has a public function called getUrl().
Now I want to get the Url from a page:
$page->route->getUrl();
This returns the folowing error: "Call to a member function getUrl() on null"
However, when I call it inside the dd function, it works fine, also when I call the page's getUrl() function. These both work fine:
dd($page->route->getUrl());
$page->getUrl());
I thought that the route could not have been treated as a Route Object, but var_dump($page->route) returns a Route Object.
Can anyone explain that behaviour to me?
In glade it is possible to set an unique ID to an object. In the code one can obtain a pointer to this object by searching for it's "glade ID" via gtk_builder_get_object().
However for my current use-case I just want to read out this ID from an GObject. What's the API to do so ?
You can't. The builder ID is stored in the builder internally, not in the GObject.
The reason for this is that IDs must be unique per builder, which would be impossible to enforce if you were able to get and set them via some GObject API.
You could use gtk_widget_get_name() to identify an object.
It is possible using Gtk.Buildable.get_name(object). This method will return the Glade object id.
This snippet will print all object ids in your Glade XML:
builder = Gtk.Builder()
builder.add_from_file("my-window.glade"))
for obj in builder.get_objects():
print(Gtk.Buildable.get_name(obj))
As stated by #ptomato it's seems not possible.
I found that in that line in the documentation:
All the fields in the GObject structure are private to the
implementation and should never be accessed directly.
But you can circumvent it because at one point in your code you were refering to it by the id that you typed in (or the code you wrote type in) so you just need to store it at that point. And link it somehow (with a variable or a data structure) to the name of the variable holding the object.
I have a WinJS class defined as follows and would like to use a member function in the constructor:
WinJS.Class.define(
function() {
setInterval(myMemberFunction, 100);
},
{ // Member variables
myMemberFunction: function() {
// Do something
}
});
Unfortunately it looks like I can't resolve member functions in that manner in the constructor. This code all lives in a module so I could move myMemberFunction up the hierarchy and access it from the constructor, however the drawback is that "this" would no longer refer to the instance of my WinJS class. What's the recommended method for accessing instance members in a WinJS from the constructor?
Generally speaking, you refer to any method or property using "this," as in this.myProperty. In the case of event handlers, you need to make sure that the "this" that you see inside the handler is the instance "this". That's the purpose of the bind method of a function object. So you do this:
setInterval(this.myMemberFunction.bind(this), 100);
This makes sure that you bind the right "this" instance to the callback. Because I've seen this question pop up frequently (use of .bind is all over the Windows SDK samples), I wrote about this in more detail on http://www.kraigbrockschmidt.com/2012/11/28/purpose-function-dot-bind/.
Just to note, this is pure JavaScript; nothing particular to WinJS or Windows Store apps.
From within a class derived from FB::PluginCore (or FB::JSAPIAuto), for example in onPluginReady() or a JS method handler, I'd like to have access to the NPP instance. What is the best practice for getting this pointer?
The underlying goal is to be able to call NPN_SetValueForURL, to set cookies.
You can call any of the NPN functions on the NpapiBrowserHost object, which is what the BrowserHost actually is.
FB::Npapi::NpapiBrowserHostPtr npapiHost = FB::ptr_cast<FB::Npapi::NpapiBrowserHost>(m_host);
I think it has SetValueForURL on it, but if it's missing you can always add it and submit a pull request; I'll accept it as long as it's reasonable.
is there any way how to return generic describing entity type with the JAX-RS Response? Something like REST-Easy ClientReponse but JAX-RS standard and not implementation-specific class.
The thing is I want to call my REST service via its shared interface (created by some proxy provider) and returning only object does not allow add information I need. E.g. for creating resource via POST, I would like to return also URL to newly created resource and so on. Returing simple Response does not show what type of entity is stored within such response.
Response<MyObject> getMyObject(#PathParam("id" Integer id)
So far it seems that I will have to return simple Response and then create adapter which will simply call Response.getEntity(.class)
There is probably no such option...
GenericEntity allows you to return a generic. The actual type is held at runtime by GenericEntity, allowing the object to be serialized.
Here's a contrived example of how it can be used.
GenericEntity entity = new GenericEntity<Employee>(new Employee());
return Response.ok(entity).build();