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HomeBackend DevelopmentPHP TutorialPHP imagegrabscreen和imagegrabwindow(截取网站缩略图)的实例代_PHP

1. 截取整个屏幕 Screenshot
复制代码 代码如下:
$im = imagegrabscreen();   
imagepng($im, “myscreenshot.png”);   
?>

2. 截取一个窗口 Capture a window (IE for example)
复制代码 代码如下:
$browser = new COM(“InternetExplorer.Application”);   
$handle = $browser->HWND;   
$browser->Visible = true;   
$im = imagegrabwindow($handle);   
$browser->Quit();   
imagepng($im, “iesnap.png”);   
$im = imagegrabscreen();   
?>

3. 截取IE内容 Capture a window (IE for example) but with its content!
复制代码 代码如下:
$browser = new COM(“InternetExplorer.Application”);   
$handle = $browser->HWND;   
$browser->Visible = true;   
$browser->Navigate(“http://www.bitsCN.com”);   

/* Still working? */  
while ($browser->Busy) {   
     com_message_pump(4000);   
}   
$im = imagegrabwindow($handle, 0);   
$browser->Quit();   
imagepng($im, “iesnap.png”);   
?>

4. 截取IE的全屏模式 IE in fullscreen mode
复制代码 代码如下:
$browser = new COM(“InternetExplorer.Application”);   
$handle = $browser->HWND;   

$browser->Visible = true;   
$browser->FullScreen = true;   
$browser->Navigate(“http://www.bitsCN.com”);   

/* Is it completely loaded? (be aware of frames!)*/  
while ($browser->Busy) {   
     com_message_pump(4000);   
}   
$im = imagegrabwindow($handle, 0);   
$browser->Quit();   
imagepng($im, “iesnap.png”);   
?>

上面就是说如何使用PHP COM调用IE窗口打开网页进行截屏,但很多朋友得到的结果只是一张纯黑的图片,这是为什么呢?
可能有两种情况,第一种情况就是这个COM组件只适用于WINDOWS服务器,其它系统的服务器是不支持的,因为他没有IE浏览器,第二种情况就是没有打开允许服务与桌面交互!其中第二种情况最为常见,打开的方法就是点击计算机(我的电脑) -> 右键 -> 管理 -> 服务和应用程序 -> 服务 -> Apache(我自己使用apache服务器) -> 右键 -> 属性 -> 登录 -> 登录身份下面既是!
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