PHP5中文手册·Captures a window -- 追寻梦想＞编程乐园＞PHP 编程

说明

resource imagegrabwindow ( int $window [, int $client_area ] )

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

参数

window: 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");
?>

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");
?>

注释

Note: This function is only available on Windows.

参见

imagegrabscreen()


	PHP5中文手册 imagegrabscreen imageinterlace Image PHP Manual imagegrabwindow (PHP 5 >= 5.2.2) imagegrabwindow — Captures a window 说明 resource imagegrabwindow ( int `$window` [, int `$client_area` ] ) Grabs a window or its client area using a windows handle (HWND property in COM instance) 参数 `window` 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"); ?>` 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"); ?>` 注释 Note*: This function is only available on Windows. 参见 imagegrabscreen() imagegrabscreen imageinterlace Image PHP Manual