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I need to code a C++ program to execute the tab control of the keyboard through the code. I am expecting when the tab control of the code gets executed, we should be able to navigate throught the web page through it. for example, take a web page, and we are able to navigate through it by clicking on the key 'tab'. like wise i need this to be done in the code.

I have googled this for weeks now, and unable to find a solution.

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As described, the goal is to make a program send the Tab key so focus moves through a web page. As already noted, standard ISO C++ has no facility for synthesizing keyboard input — this requires OS- or application-level APIs or a browser automation tool.

On Windows the usual low-level method is SendInput (preferred over deprecated keybd_event). SendInput synthesizes real keyboard events at the OS level; PostMessage/WM_KEYDOWN often does not have the same effect for modern browsers or may be ignored for security reasons. Example:

#include <windows.h>

void SendTab()
{
    INPUT inputs[2] = {};

    // Key down
    inputs[0].type = INPUT_KEYBOARD;
    inputs[0].ki.wVk = VK_TAB;

    // Key up
    inputs[1].type = INPUT_KEYBOARD;
    inputs[1].ki.wVk = VK_TAB;
    inputs[1].ki.dwFlags = KEYEVENTF_KEYUP;

    SendInput(2, inputs, sizeof(INPUT));
}

Practical caveats: the target window usually must have input focus (SetForegroundWindow / AttachThreadInput can help but Windows limits forcing focus). Browsers may still treat synthetic events differently; some platforms or browsers deliberately ignore non-hardware events for security. For reliable, testable control of a web page, higher-level automation is better: Selenium WebDriver, Puppeteer or Playwright drive the DOM directly (use element.focus() or sendKeys APIs) and avoid fragile synthetic-key approaches.

Cross-platform notes: on X11 use XTestFakeKeyEvent; on Wayland synthetic keyboard injection is generally restricted; on macOS use CoreGraphics keyboard events (CGEventCreateKeyboardEvent / CGEventPost). For accessibility-driven focus movement on Windows, UI Automation is an alternative to keyboard simulation. Finally, if deterministic navigation of page elements is needed, interacting with the DOM (automation/extension) is the most robust choice.

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Member Avatar for WaltP

This is not something Standard C++ is not able to do. You have to call some functions from the operating system, or some very non-standard functions that few compilers have implemented.

Edited by WaltP because: n/a
Member Avatar for localp

Like what? how should i do this? can you give me a google search key to learn more about this?

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