imagegrabwindow()

(PHP 5 >= 5.2.2, PHP 7)

Captures a window

说明

imagegrabwindow(int $window_handle[,int $client_area= 0]): resource

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

Note:

This function is only available on Windows.

参数

$window_handle

The HWND window ID.

$client_area

Include the client area of the application window.

返回值

Returns an image resource identifier on success,FALSE on failure.

错误／异常

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

范例

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);
?>

参见

• imagegrabscreen()Captures the whole screen

If you just want to take a screenshot of a website WITHOUT the ugly IE window around it, the easiest way is setting the "Fullscreen" property to TRUE.
$browser->Fullscreen = true;
This is basically the same as pressing F11 once the browser is open, so you just get the actual website.