imagegrabwindow
(PHP 5 >= 5.2.2, PHP 7, PHP 8)
imagegrabwindow — Captures a window
Description
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
- imagegrabscreen() - Captures the whole screen
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