imagegrabwindow

(PHP 5 >= 5.2.2, PHP 7, PHP 8)

imagegrabwindowCaptures a window

Description

imagegrabwindow(int $handle, bool $client_area = false): GdImage|false

Grabs a window or its client area using a windows handle (HWND property in COM instance)

Note:

This function is only available on Windows.

Parameters

handle

The HWND window ID.

client_area

Include the client area of the application window.

Return Values

Returns an image object on success, false on failure.

Errors/Exceptions

E_NOTICE is issued if handle is invalid window handle. E_WARNING is issued if the Windows API is too old.

Changelog

Version Description
8.0.0 On success, this function returns a GDImage instance now; previously, a resource was returned.
8.0.0 client_area expects a bool now; previously it expected an int.

Examples

Example #1 imagegrabwindow() example

Capture a window (IE for example)

<?php$browser = new COM("InternetExplorer.Application");$handle = $browser->HWND;$browser->Visible = true;$im = imagegrabwindow($handle);$browser->Quit();imagepng($im, "iesnap.png");imagedestroy($im);?>

Capture a window (IE for example) but with its content

<?php$browser = new COM("InternetExplorer.Application");$handle = $browser->HWND;$browser->Visible = true;$browser->Navigate("http://www.libgd.org");/* Still working? */while ($browser->Busy) {    com_message_pump(4000);}$im = imagegrabwindow($handle, 0);$browser->Quit();imagepng($im, "iesnap.png");imagedestroy($im);?>

See Also