PHP截取IE浏览器并缩小原图的方法

// 截取一个窗口 capture a window (ie for example)
$ie = new com("internetexplorer.application");
$ie->navigate2($webaddress);
$owsh = new com("wscript.shell");
while ($ie->readystate!=4) usleep(10000);
  $handle = $ie->hwnd;
  $ie->visible = true;
while ($ie->busy) {
  com_message_pump(4000);
}
$im = imagegrabwindow($handle, 0);
$ie->quit();
$file="public/images/".time()."iesnap.png";
imagepng($im,$file);
//--------------------
$browser = new com("internetexplorer.application");
$handle = $browser->hwnd;
$browser->visible = true;
$browser->fullscreen = true;
$browser->navigate($webaddress);
while ($browser->busy) {
  com_message_pump(4000);
}
$im = imagegrabwindow($handle, 0);
$browser->quit();
//opendir("public/images/");
$new_img=imagecreatetruecolor("206","132");
$file="public/images/".time()."ie.png";
imagecopyresampled($new_img,$im,0,0,206,132,206,142,1024,768);
imagepng($new_img ,$file);
imagedestroy($new_img);