Connect and share knowledge within a single location that is structured and easy to search. It's for a keylogger program, but it's not my intention to hack someone. It's for a little school project that I want to make to show the dangers about hackers. I see the window appear and immediately disappear at startup. It seems to open a new console right after that, which is just blank. By blank I mean "Press any key to continue..
GetConsoleWindow retrieves the window handle used by the console. IsWindowVisible can be used to checked if a window in that case the console is visible or not. Hiding a console window at startup is not really possible in your code because the executable is run by the operating system with specific settings.
That's why the console window is displayed for a very short time at startup when you use for example FreeConsole ; To really hide the window at startup, you have to add a special option to you compiler. If you use gcc on Windows MinGW you can just add -mwindows as compiler option in your makefile and there will be absolutely no window or "flash".
This solution is for windows systems only. This is probably not optimal however. A console application doesn't actually create a console itself, it just runs in one. If you run the executable from Explorer, Windows creates a console for it to run in. When you call FreeConsole , it doesn't close the new console, simply detaches your process from it. As WhozCraig noted in the comments, create a regular Windows application and don't create a window. You are writing a console program as the entry point is main.
It is simple. In Chrome, this value is 10 seconds. Timer tasks are only permitted when the budget is non-negative. Once a timer's code has finished running, the duration of time it took to execute is subtracted from its window's timeout budget. The budget regenerates at a rate of 10 ms per second, in both Firefox and Chrome.
Tabs running code that's using real-time network connections WebSockets and WebRTC go unthrottled in order to avoid closing these connections timing out and getting unexpectedly closed.
IndexedDB processes are also left unthrottled in order to avoid timeouts. Possible values are: visible The page content may be at least partially visible. Note: Not all browsers support prerendering. Note: Not all browsers support the unloaded value. Specification Page Visibility. A more complete description of this method, written by LloydLabs , is available here. In our case, the piece of code to change would be:.
What have we achieved? We managed to import and use Windows API functions in a way that is not detectable by static analysis tools. And hopefully, we had some fun — at least, I did. I hope you liked this post! Comments below or tweets to christophetd are always welcome. Your email address will not be published.
Note: For accessibility reasons, it is strongly recommended to set this feature always on. If windowFeatures is non-empty, scrollbars defaults to off. Note: For accessibility reasons, it is strongly encouraged to set this feature always on. If this feature is set, the newly-opened window will open as normal, except that it will not have access back to the originating window via Window.
In addition, the window. This is useful for preventing untrusted sites opened via window. If this feature is set, the request to load the content located at the specified URL will be loaded with the request's referrer set to noreferrer ; this prevents the request from sending the URL of the page that initiated the request to the server where the request is sent. In addition, setting this feature also automatically sets noopener.
Firefox introduced support for noreferrer in Firefox The above code solves a few usability problems related to links opening secondary window. The purpose of the return false in the code is to cancel default action of the link: if the onclick event handler is executed, then there is no need to execute the default action of the link.
But if javascript support is disabled or non-existent on the user's browser, then the onclick event handler is ignored and the browser loads the referenced resource in the target frame or window that has the name "PromoteFirefoxWindowName". HTML 4. How do I create a link that opens a new window?
You can also parameterize the function to make it versatile, functional in more situations, therefore re-usable in scripts and webpages:. You can also make such function able to open only 1 secondary window and to reuse such single secondary window for other links in this manner:. You cannot. New windows not opened by javascript cannot as a rule be closed by JavaScript. The JavaScript Console in Mozilla-based browsers will report the warning message: "Scripts may not close windows that were not opened by script.
First check for the existence of the window object reference of such window and if it exists and if it has not been closed, then use the focus method. There is no other reliable way. You can examine an example explaining how to use the focus method. All browser manufacturers try to make the opening of new secondary windows noticed by users and noticeable by users to avoid confusion, to avoid disorienting users.
You cannot force this. Users with Mozilla-based browsers have absolute control over window functionalities like resizability, scrollability and toolbars presence via user preferences in about:config.
Since your users are the ones who are supposed to use such windows and not you, being the web author , the best is to avoid interfering with their habits and preferences.
We recommend to always set the resizability and scrollbars presence if needed to yes to insure accessibility to content and usability of windows. This is in the best interests of both the web author and the users. You cannot reliably because the users can prevent the window from being resized by setting dom.
In general, users usually disable moving and resizing of existing windows because allowing authors' scripts to do so has been abused overwhelmingly in the past and the rare scripts that do not abuse such feature are often wrong, inaccurate when resizing the window. The window method sizeToContent can also be disabled. Moving and resizing a window remotely on the user's screen via script will very often annoy the users, will disorient the user, and will be wrong at best.
The web author expects to have full control of and can decide about every position and size aspects of the users' browser window You can test for the existence of the window object reference which is the returned value in case of success of the window. With the built-in popup blockers, you have to check the return value of window. However, for most other popup blockers, there is no reliable way. The window. It is because of the cross-domain script security restriction also referred as the "Same Origin Policy".
A script loaded in a window or frame from a distinct origin domain name cannot get nor set properties of another window or frame or the properties of any of its HTML objects coming from another distinct origin domain name.
Therefore, before executing a script targeting a secondary window, the browser in the main window will verify that the secondary window has the same domain name.
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