imagegrabscreen

(PHP 5 >= 5.2.2, PHP 7, PHP 8)

imagegrabscreen — Captures the whole screen

说明

imagegrabscreen(): GdImage|false

Grabs a screenshot of the whole screen.

注意:
This function is only available on Windows.

参数

此函数没有参数。

返回值

Returns an image object on success, false on failure.

更新日志

版本	说明
8.0.0	On success, this function returns a GDImage instance now; previously, a resource was returned.

范例

示例 #1 imagegrabscreen() example

This example demonstrates how to take a screenshot of the current screen and save it as a png image.


<?php
$im = imagegrabscreen();
imagepng($im, "myscreenshot.png");
imagedestroy($im);
?>

参见

imagegrabwindow() - Captures a window

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User Contributed Notes 3 notes

down

Nitrogen ¶

12 years ago


If you have multiple displays set up, this function will only grab the primary display; not all of them like you would with the 'Print Screen' key.

Also, this should be pretty obvious but I'll mention it anyway, if you're running GPU-intensive applications (not CPU), calling this function will cause quite some significant lag to your machine and server response until the request is complete.

down

-2

divinity76 at gmail dot com ¶

3 years ago


if you for whatever reason need this in Cygwin, this can be done with the library at https://github.com/divinity76/autoit_php

- cygwin-compatible rough equivalent:

<?php
if(!function_exists("imagegrabscreen")){
    function imagegrabscreen()/*:gd-resource*/{
        require_once("autoit.class.php");
        $au=new AutoIt();
        $png_binary=$au->_ScreenCapture_Capture();
        return imagecreatefromstring($png_binary);
    }
}

(note that unlike the real imagegrabscreen() , this function may throw a RuntimeException if there is a problem taking the picture, or if autoit.class.php cannot be loaded)

down

-11

andrew at local dot co dot nz ¶

14 years ago


For this to work your Apache service must be set to 'Allow service to interact with desktop' otherwise you will just get a blank image. To fix this right-click My Computer, select Manage/Services and Applications/Services - find the apache service (like Apache2) and right-click, select Properties - choose the Log on tab and check the 'Allow service to interact with desktop' checkbox. Restart Apache.

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官方地址：https://www.php.net/manual/en/function.imagegrabscreen.php

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imagegrabscreen

说明

参数

返回值

更新日志

范例

参见

User Contributed Notes 3 notes