All Questions
29
questions
0
votes
2
answers
70
views
How to Pre-Bind Parameters in a Template-Based Event System in C++
I have an event system in my game engine, consisting of two main components: Event and EventCallback.
Event.h:
#ifndef _EVENT_H_
#define _EVENT_H_
#include "EventCallback.h"
#include <...
- 1
0
votes
0
answers
67
views
C++ inlined events undefined during instantiation
I want to create inlined event functions if possible. Storing func pointers in a container isn't a way because they can't be inlined. The code in the event will be called always and I don't want to ...
- 1
1
vote
2
answers
413
views
C++ List of member callback functions
I am going from C development to C++ on the STM32 platform and simply cant find a suitable solution for my problem.
Please have a look at the simplified example code attached to this post.
#include &...
- 36
0
votes
1
answer
614
views
C++ Event Dispatcher - callback casting problem
I'm venturing into creating an EventDispatcher using C++ 17 in Visual Studio 2022. Basically I store a string (id) to identify the event and a callback (lambda, function or method of a class) in a ...
0
votes
1
answer
437
views
Function Pointers as Event Callbacks in a st
I am currently trying to implement an event system where layers can subscribe to certain event types. I am struggling with function pointers for the callback methods. In the layer.h file I have the ...
- 121
1
vote
1
answer
575
views
Trigger a C++ action from a C# event
sorry if the question is too general, but I would like to know what is the best solution.
I have two projects. The main one is in C++ and needs to receive some information from a software component. ...
7
votes
2
answers
10k
views
Unreal Engine 4: C++ Delegate not being called
I've been working on converting some blueprint logic over to C++. One of the things I have is a button. The button can be pressed in VR and has a delegate that is called to notify any registered ...
- 609
1
vote
2
answers
117
views
Converting different classes to void* and back safely in C++
I have a map of callbacks that pass information and execute various functions throughout code, very much like events in C# but in C++.
The map is defined as
std::map<std::string, std::function&...
- 3,542
0
votes
0
answers
660
views
C++ Storing Callback Functions Inside Struct Vector - Performance, Call Options, Deallocation Issues
I am currently experimenting in designing an InputHandler class, which will be responsible for storing callback functions, registered to its instance from various objects, and calling those functions ...
1
vote
1
answer
760
views
linux c++: libaio callback function never called?
I'm on ubuntu 16.10 with g++ 6.2, testing libaio feature:
1. I was trying to test io_set_callback() function
2. I was using main thread and a child thread to talk by a pipe
3. child thread writes ...
- 10.3k
1
vote
0
answers
240
views
C++ Create callback from C++/CLI to C++
Hello for my project i have the "main" dll non cli in a process.
Then i have multiples instance of c# dll which embed a CLI dll.
From c# i can add a "EventHandler" to the cli.
Now the tricky part.
I ...
1
vote
1
answer
785
views
c++ get instance of parent from child
Hey am creating a game as a school project in c++, and trying to get an instance of the parent class from the child class. I have created a class CollisionHandler witch works as a callback or event ...
- 587
1
vote
0
answers
559
views
OpenCL 1.1 C++ Bindings: Create cl::Event object from cl_event type in callback
how can I create a cl::Event object from cl_event type in OpenCL event callback?
There's a cl::Event constructor in OpenCL 2.0 Reference:
Event (const cl_event &event, bool retainObject=false)
...
- 53
0
votes
0
answers
66
views
C++ Borland Vector of events
I have the following code:
A.h
typedef bool __fastcall(__closure * Callback)();
class A
{
private :
Callback FCallback
public:
A();
__property Callback OnCallBack = {read = ...
- 15
1
vote
0
answers
410
views
How to Implement Event-triggered Callback in C++
Assume in a system, users will register a callback function with system and that callback function will be called when an event is triggered but if the event is already triggered, the user will ...
- 1,649