Php/docs/function.imagegrabwindow
imagegrabwindow
(PHP 5 >= 5.2.2, PHP 7)
imagegrabwindow — Captures a window
说明
imagegrabwindow
( int $window_handle
[, int $client_area = 0
] ) : resource
Grabs a window or its client area using a windows handle (HWND property in COM instance)
Note:
This function is only available on Windows.
参数
window_handle- The HWND window ID.
client_area- Include the client area of the application window.
返回值
Returns an image resource identifier on success, false on failure.
错误／异常
E_NOTICE is issued if window_handle is invalid
window handle.
E_WARNING is issued if the Windows API is too old.
范例
Example #1 imagegrabwindow() example
Capture a window (IE for example)
<?php$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;$browser->Navigate("http://www.libgd.org%22);/* Still working? */while ($browser->Busy) { com_message_pump(4000);}$im = imagegrabwindow($handle, 0);$browser->Quit();imagepng($im, "iesnap.png");imagedestroy($im);?>
