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(PHP 5 >= 5.2.2)

imagegrabwindow — Captures a window

說明

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

參數(shù)

window_handle

The HWND window ID.

Include the client area of the application window.

返回值

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

錯誤／異常

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

范例

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);
?>

注釋

Note:

This function is only available on Windows.

參見

imagegrabscreen() - Captures the whole screen