I have a working Electron app which I wrote about two years ago. I'm not an employee of a company, but just some guy that wrote an app that a few people use to make the world a better place. Anyway, I need to make some changes to the app but my computer crashed a while back so I downloaded my old code from Github onto my new computer and started to get to work. But immediately I found the app wouldn't work in the new 17.0.0 version of electron because the REMOTE module in Electron was deprecated and then removed in previous versions. I tried to follow the instructions here... https://www.npmjs.com/package/#electron/remote?activeTab=readme to replace REMOTE with the new #electron/remote module. I've had several problems, my most recent is:
JavaScript Error: Uncaught Exception: TypeError BrowserWindow is not a constuctor at app.createWindows (C:...\main.js:89:17).
I use the remote functionality (properties?) over 50 times in my app, including .dialogue, .getGlobal, .getCurrentWindow, and .BrowserWindow.getAllWindows
I'm not including my code here because I'm not really looking for a a coding solution (unless that's the easy/best/only thing I should do and you can give me a solution from the information I've written) but more general advice on what direction I should go to solve this problem. I'm a good programmer in a language that is not Electron, or JavaScript, or NodeJS! So, with the right instruction I can get by, but please be easy on me. (For example I get lost in the instructions for #electron/remote around the API Reference section.) Thanks for any help you can provide.
Mike
Some big changes have been made to Electron over the past couple of years, especially with the use of remote. I would hate to say it but it looks like you are in for a bit of work to get it operational again.
You will want to look at ipcMain, ipcRender and contextBridge.
The inclusion of webPreferences: {preload: ""} in your new BrowserWindow() method plus the use of the above Electron methods will place you in a good starting position for safe, quick, thread seperated code.
See Context Isolation and Inter-Process Communication for more info.
PS: If you need a quick bit of code to get you going / give you an idea then let me know.
I want to create a app specific setting(app preference) in iOS(iPad) and read that in my Ionic(v5) code. I have seen plugins like https://github.com/chrisekelley/AppPreferences/ this but not working with the cordova-9 as it was not updated. Looks like this project is abandoned.I was able to create a setting bundle during the build and place it under the settings->Myapp (key-value) but from the program reading is not working.
My requirement is very simple. I need to externalize the back-end server IP/name as it might change sometimes. I was thinking if I can create a property under Settings->MyApp->Server then I can edit it in the Settings and read it while starting the app.
Is there a different approach that I can follow?
Please let me know if you have any pointers.
Today I started to write my first web application and I can't pass one step.
Everything works almost fine... I can connect to the server and open website. Problem is when I open browser and type the same address on the second pc, then I get te same data as on the first one.
Detailed...
Application has two forms, first is for login, and second one is for receiving data.
When I login on the first pc and second form shows up, and then I open browser and put the address of the server on the second pc, I see the second form after login from first pc.
What I should do in this case? I tried to find the solution in the net, but I couldn't :(
If you are using any Delphi IDE after XE3 (including) and using the IntraWeb edition that comes with Delphi you must upgrade in order to have it working correctly. It is free, and more information can be obtained here:
http://atozed.com/IntraWeb/Download/FreeKeyRequest.EN.aspx|
After upgrading (if this is your case) I suggest you to take a look at one of the IntraWeb demos, here:
https://iwdemos.codeplex.com/SourceControl/latest
There is a demo named Features that shows you exactly how to create a multi form application. To be honest, I work with IntraWeb for a long time and I've never seen that. Unless you are using some global var to hold your "current" active form. Have in mind that IntraWeb is a fully multithreaded application and global vars should not be used, unless you have some mechanism protecting concurrent access (but you should get rid of them and use ServerController properties instead).
Thnks for your quick reply.
I work with Delphi from some time, but I never used Intraweb, I worked with ComPort and IP works for I/O devices. I have XE7 and I upgraded Intraweb to 14.0.52.
I can't find a good file exchange server to put my application for sharing with you. If I find somethin I will post it below.
You can check the code and other settings of my simply project. I put the web application inside the link below, it is without the .exe file.
https://www.dropbox.com/s/75zurcew0zr363x/Project1.rar?dl=0
Thanks for your help.
When my program successfully installs via Inno Setup, how do I run a URL in the background? I want to just load a tracking pixel (or a postback) which says that my program was installed.
I'm aware than in the [Run] section, I can run a .url file with the flag "runhidden", but as far as I know that won't do what I need it to. Am I wrong about that, or are there better option?
Thank you.
There is no TCP/IP related Support Functions, defined by default.
You could build this functionality into a DLL and call it from you Install Script.
This is done installation's where Activation is required to make the program work.
However, I would just launch a browser window using the [Run] section that contains "Getting Started" information. You can then track hits to that page.
I have a windows service that is failing to start, giving an error "Error 1053: The service did not respond to the start or control request in a timely fashion".
Running the service in my debugger works fine, and if I double click on the the service .exe on the remote machine a console window pops up and continues to run without problem - I can even see log messages showing me that the program is processing everything the way it should be.
The service had been running fine previously, though this is my first time, personally, trying to deploy it with the most recent changes made to the program. I've evaluated those changes and cant figure out how they might cause this problem, particuarly since everything runs fine when not started as a service.
The StartRoutine() method of the service impelmentation is empty, so should be returning in a "timely fashion".
I've checked the event logs on the computer, and it doesn't give any additional information other than it didn't hear back from the service in the 30 second requisite time frame.
Since it works on my machine, and as a double-clicked executable, how would I go about figuring out why it fails as a service?
Oh, and it's .NET 2.0, so it shouldn't be affected by the 1.1 framework bug that exhibited this symptom (http://support.microsoft.com/kb/839174)
The box is a windows server 2003 R2 machine running SP2.
This is a misleading error. It's probably an unhandled exception.
Empty your OnStart() handler then try this in your constructor...
public MainService()
{
InitializeComponent();
try
{
// All your initialization code goes here.
// For instance, my exception was caused by the lack of registry permissions
;
}
catch (Exception ex)
{
EventLog.WriteEntry("Application", ex.ToString(), EventLogEntryType.Error);
}
}
Now check the EventLog on your system for your Application Error.
Could be a number of things and it might help to get a stack trace on the machine exhibiting the problem. There are a number of ways to do this but the point is that you have to see where this is failing in the code.
You can do this with remote debugging, but a simple thing might be to just log to the event logger, or file log if you have that. Literally, putting "WriteLine("At class::function()") throughout portions of the code to see if you've made it there.
This will at least get you looking in the right direction (which ultimately is the code).
Update:
See Microsoft's How to Debug Windows Services article for details in troubleshooting startup problems using WinDbg.
This related question details nice ways to debug services that are written in .NET.
I agree with Scott, the easiest way to find out what's happening is to put some traces in the start-up code (maybe it doesn't even come to your start-up code).
If this doesn't help, you can post your code here so others can take a look.
perhaps lacking some dependence, try this :
- deregister your service
- register again
If fail at register means that lack an module.
If the StartRoutine is empty, you are probably starting it somewhere else.
IIRC you need to fire off a worker thread, and then return from StartRoutine.
One of the problems which may lead to this error is if windows service which needs to be deployed consists of some error i.e it may be simple authorization error or anything as in my case I have referenced some folders and files for logging which were not existing, but when provided the right path of those file and folders it solved my problem.
I ran through every post on this particular subject and none of the responses solved the problem, so I'm adding this response in case this helps someone else. Admittedly this only applies to a new service, not this specific case.
I was writing a File listening service. As a console app, it worked perfectly. When I ran it as a service, I got the same error as above. What I didn't know (and many of the MSDN articles about services conveniently leave out) is that you need to have your class executed from within ServiceBase.Run( YourClassName());. Otherwise, your app executes and immediately terminates and because it terminated, you get the error above even if no error or exception occurred. Here is a link to an article about this. It actually discusses setting up your app for dual use - Console app and service: Create a combo command line / Windows service app
I had that issue and the source of my problem was config file. I edited it in notepad and notepad added one special character which cause service not to run properly because config file was ruined. I saw that special character in notepadd++ and after delete it, service started to run successfully as previous did.
In my case, the correct .NET framework was not installed on the server that I was installing the Windows service on.
One other reason is If you copy the DLL in 'debug' mode to installation folder this issue will come.What you need to do is Run the project in 'Release' mode copy the DLL or directly form Release folder rather than Debug folder,,and copy that DLL in to installation folder,it will work.You can see the reduction in size of DLL ,it will not contain any debug symbols and like that