PHP uses GD library for screenshot
PHP5.2.2 above version of the GD library implemented two screenshots functions Imagegrabscreen and Imagegrabwindow
Screens that intercept the entire screen and intercept a window (same alt+printscreen), respectively.
1. Capture the entire screen screenshot
$im = Imagegrabscreen ();
Imagepng ($im, "myscreenshot.png");
?>
2. Capturing a window capture a Windows (IE for example)
$browser = new COM ("Internetexplorer.application");
$handle = HWND $browser;
$browser, Visible = true;
$im = Imagegrabwindow ($handle);
$browser, Quit ();
Imagepng ($im, "iesnap.png");
$im = Imagegrabscreen ();
?>
3. Capturing IE content capture a window (ie for example) but with its content!
$browser = new COM ("Internetexplorer.application");
$handle = HWND $browser;
$browser, Visible = true;
$browser-Navigate ("http://www.21andy.com/blog/");
/* Still working? */
while ($browser-Busy) {
Com_message_pump (4000);
}
$im = Imagegrabwindow ($handle, 0);
$browser, Quit ();
Imagepng ($im, "iesnap.png");
?>
4. Capture IE's full-screen mode ie in fullscreen modes
$browser = new COM ("Internetexplorer.application");
$handle = HWND $browser;
$browser, Visible = true;
$browser-fullscreen = true;
$browser-Navigate ("http://www.21andy.com/blog/");
/* Is it completely loaded? (Be aware of frames!) */
while ($browser-Busy) {
Com_message_pump (4000);
}
$im = Imagegrabwindow ($handle, 0);
$browser, Quit ();
Imagepng ($im, "iesnap.png");
?>
I use Internet Example Explorer as Example, if you like to play more with IE and COM, check out the IBrowser2 documentatio N at MSDN. It should work with any kind of windows as long as you give the correct handle (usually $obj->hwnd).
* Php_gd2.dll for 5.2.x thread safe build
* PHP GD Image documentation
* IE Manual (useful to tweak it from com_dotnet
During the test I did not appear in the manual that the effect, but a pure black picture, this is why?
There may be two situations in which the first case is that the COM component applies only to Windows servers, because he does not have IE, and the second scenario is that the Allow service to interact with the desktop is not turned on! The second is the most common (by default, closed), open by: Click the computer (My Computer), right---manage services and applications, services and apps, Apache---Login-&G T Check allow services to interact with the desktop.
If this is the second case, I installed the Apache integration package, so that I can not find the Apache service where, so the second method of setting I did not succeed, if there is a successful person, want to point.
Excerpted from plastic sheets
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