Insert text to browser's textbox

What is the function to write to a browser's textbox?

Is it the same as for writing to a window?

Code:

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DrawText (hdc, TEXT ("Hello!"), -1, &rect, 0) ;

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I cant seem to manage. Thanks!

What textbox? The URL input box, or the rendering window?

The login box for example.

Thanks.

There's no general way to do what you're trying to do; some browsers may implement it as an actual Windows control, while others may use some internal format for their widgets. Either way, due to security issues, they probably aren't going to publish an API for accessing input fields (I'm just guessing, though).

I understand, thanks for the explanation.