screenshotmachine vb

截图机-VB

本demo展示了如何使用Visual Basic编程语言调用在线截图机API。

安装

首先，您需要在 www.screenshotmachine.com 网站上创建一个免费/高级帐户。注册后，您将在您的用户个人资料中看到您的客户密钥。这里还保留了秘密短语。当您的 API 调用是从公开网站调用时，请始终使用秘密短语。

在脚本中设置您的客户密钥和秘密短语（如果需要）：

    Dim customerKey As String = "PUT_YOUR_CUSTOMER_KEY_HERE"
    Dim secretPhrase As String = "" REM leave secret phrase empty, If Not needed 

网站截图API

设置附加选项以满足您的需求：

    Dim options As New Dictionary( Of String , String )
    REM mandatory parameter
    options.Add( "url" , "https://www.google.com" )
    REM  all next parameters are optional, see our website screenshot API guide for more details
    options.Add( "dimension" , "1366x768" ) REM Or "1366xfull" For full length screenshot
    options.Add( "device" , "desktop" )
    options.Add( "format" , "png" )
    options.Add( "cacheLimit" , "0" )
    options.Add( "delay" , "200" )
    options.Add( "zoom" , "100" )

有关选项的更多信息可以在我们的网站屏幕截图 API 中找到。

示例代码

 Imports System.Net

Public Class Client

    Public Shared Sub Main(args() As String )
        Dim customerKey As String = "PUT_YOUR_CUSTOMER_KEY_HERE"
        Dim secretPhrase As String = "" REM leave secret phrase empty, If Not needed

        Dim options As New Dictionary( Of String , String )
        REM mandatory parameter
        options.Add( "url" , "https://www.google.com" )
        REM  all next parameters are optional, see our website screenshot API guide for more details
        options.Add( "dimension" , "1366x768" ) REM or "1366xfull" for full length screenshot
        options.Add( "device" , "desktop" )
        options.Add( "format" , "png" )
        options.Add( "cacheLimit" , "0" )
        options.Add( "delay" , "200" )
        options.Add( "zoom" , "100" )

        Dim sm As ScreenshotMachine = New ScreenshotMachine(customerKey, secretPhrase)
        Dim apiUrl As String = sm.GenerateScreenshotApiUrl(options)
        REM use final apiUrl where needed
        Console.WriteLine(apiUrl)
    End Sub

End Class

生成的apiUrl链接可以放置在<img>标记中或稍后在您的业务逻辑中使用。

如果您需要将捕获的屏幕截图存储为图像，只需调用：

    Dim apiUrl As String = sm.GenerateScreenshotApiUrl(options)

    REM or save screenshot directly
    Dim client As New WebClient()
    Dim output As String = "output.png"
    client.DownloadFile(apiUrl, output)
    Console.WriteLine( "Screenshot saved as " + output)

捕获的屏幕截图将作为output.png文件保存在当前目录中。

网站转 PDF API

设置 PDF 选项：

    Dim options As New Dictionary( Of String , String )
    REM mandatory parameter
    options.Add( "url" , "https://www.google.com" )
    REM  all next parameters are optional, see our website to PDF API guide for more details
    options.Add( "paper" , "letter" )
    options.Add( "orientation" , "portrait" )
    options.Add( "media" , "print" )
    options.Add( "bg" , "nobg" )
    options.Add( "delay" , "2000" )
    options.Add( "scale" , "50" )

有关选项的更多信息可以在我们的 PDF API 网站中找到。

示例代码

 Imports System.Net

Public Class ClientPdf

    Public Shared Sub Main(args() As String )
        Dim customerKey As String = "PUT_YOUR_CUSTOMER_KEY_HERE"
        Dim secretPhrase As String = "" REM leave secret phrase empty, If Not needed

        Dim options As New Dictionary( Of String , String )
        REM mandatory parameter
        options.Add( "url" , "https://www.google.com" )
        REM  all next parameters are optional, see our website to PDF API guide for more details
        options.Add( "paper" , "letter" )
        options.Add( "orientation" , "portrait" )
        options.Add( "media" , "print" )
        options.Add( "bg" , "nobg" )
        options.Add( "delay" , "2000" )
        options.Add( "scale" , "50" )

        Dim sm As ScreenshotMachine = New ScreenshotMachine(customerKey, secretPhrase)
        Dim pdfApiUrl As String = sm.GeneratePdfApiUrl(options)

        REM save PDF file
        Dim client As New WebClient()
        Dim output As String = "output.pdf"
        client.DownloadFile(pdfApiUrl, output)
        Console.WriteLine( "PDF saved as " + output)
    End Sub

End Class

捕获的 PDF 将作为output.pdf文件保存在当前目录中。

执照

麻省理工学院许可证 (MIT)