Dynamic Web TWAIN是一个专为Web应用程序设计的TWAIN扫描识别控件，本文给大家分享几个有关Dynamic Web TWAIN的常见问题，欢迎收藏！

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C＃
// Create a MailMessage object.
MailMessage msg = new MailMessage();

// Add a header.
msg.Headers.Add("MyHeader", "Some value for my own header", false);

VB.NET
' Create a MailMessage object.
Dim msg As New MailMessage()

' Add a header.
msg.Headers.Add("MyHeader", "Some value for my own header", False)

C＃
// Remove the non-standard headers from the message.
msg.Headers.RemoveCustomHeaders();

VB.NET
' Remove the non-standard headers from the message.
msg.Headers.RemoveCustomHeaders()

C＃
// Remove the specified header.
msg.Headers.Remove("X-Special-Header"); 

// Remove the first header.
msg.Headers.RemoveAt(0);

VB.NET
' Remove the specified header.
msg.Headers.Remove("X-Special-Header") 

' Remove the first header.
msg.Headers.RemoveAt(0)

C#
// Create SMTP object
Smtp mailer = new Smtp();

// Set the message fields.
mailer.From.AsString = "jdoe@domain.com";
mailer.To.AsString = "bill@domain2.com";
mailer.Subject = "Hi";
mailer.BodyPlainText = "This is test message";

// Starts logging SMTP activities into a file. 
mailer.Log.Enabled = true;
mailer.Log.Filename = @"C:\log.txt";
mailer.Log.Clear();

// Specify the server to use. If your server does not require authentication, 
// just omit both last parameters.
mailer.SmtpServers.Add("mail.domain.com", "jdoe", "secret");

// Attempt to connect.
mailer.Connect();

// Display the host name of the server the connection was established with.
Console.WriteLine("Connected to " + mailer.SmtpServers[mailer.GetCurrentSmtpServerIndex()].Name);

// Make sure all the recipients are ok.
if (mailer.TestSend(SendFailureThreshold.AllRecipientsFailed) != TestSendResult.OK)
{
        Console.WriteLine("No recipients can receive the message.");
}// Show refused recipients if any
else if (mailer.GetRefusedRecipients().Count > 0)
{
    Console.WriteLine("The following recipients failed: " + mailer.GetRefusedRecipients().ToString());
}
else
{
    Console.WriteLine("All recipients are ok. Will send the message now.");

    // Send e-mail. If it cannot be delivered, bounce will
    // arrive to bounce@domain3.com, not to joe@domain1.com
    mailer.Send("bounce@domain.com", (string)null);
    Console.WriteLine("Sent to: " + mailer.GetAcceptedRecipients().ToString());
}

// Disconnect from the server
mailer.Disconnect();

VB.NET
' Create SMTP object
Dim mailer As New Smtp

' Set the message fields.
mailer.From.AsString = "jdoe@domain.com"
mailer.To.AsString = "bill@domain2.com"
mailer.Subject = "Hi"
mailer.BodyPlainText = "This is test message"

' Starts logging SMTP activities into a file. 
mailer.Log.Enabled = True
mailer.Log.Filename = "C:\log.txt"
mailer.Log.Clear()

' Specify the server to use. If your server does not require authentication, 
' just remove last 2 parameters.
mailer.SmtpServers.Add("mail.domain.com", "jdoe", "secret")

' Attempt to connect.
mailer.Connect()

' Display the host name of the server the connection was established with.
Console.WriteLine("Connected to " + mailer.SmtpServers(mailer.GetCurrentSmtpServerIndex()).Name)

' Make sure all the recipients are ok.
If mailer.TestSend(SendFailureThreshold.AllRecipientsFailed) <> TestSendResult.OK Then
        Console.WriteLine("No recipients can receive the message.")
Else
    ' Show refused recipients if any
    If mailer.GetRefusedRecipients().Count > 0 Then
        Console.WriteLine("The following recipients failed: " & mailer.GetRefusedRecipients().ToString())
    Else
        Console.WriteLine("All recipients are ok. Will send the message now.")

        ' Send e-mail. If it cannot be delivered, bounce will
        ' arrive to bounce@domain3.com, not to joe@domain1.com
        mailer.Send("bounce@domain.com", CType(Nothing, String))
        Console.WriteLine("Sent to: " + mailer.GetAcceptedRecipients().ToString())
    End If
End If

' Disconnect from the server
mailer.Disconnect()

8、怎样添加超链接？

1. 使用“绘制对象”添加您希望创建超链接的区域（如手绘图形、矩形或椭圆）
2. 双击您定义的对象以将它指定给URL
3. 您可以将互联网地址、电子邮件地址或任何您需要的超链接插入到“URL”字段中

9、怎样调整工程大小？

10、怎样将声音插入幻灯？

• 当您在进行大纲视图浏览时，您可以点击特定幻灯的喇叭图标
• 在单个幻灯模式中，您能在工具条中找到喇叭图标

11、怎样隐藏或更改鼠标指针？

您可以使用位于工具条中或在“幻灯片|隐藏鼠标指针”菜单中的图标隐藏鼠标指针。可通过双击幻灯中或在“幻灯片|选择鼠标指针

12、在更改了鼠标指针的位置后，鼠标指针的表现奇怪。

• “蓝圈”表示鼠标指针的起始点，“红圈”表示鼠标指针的结束点
• TurboDemo将自动统计这些点之间的路径
• 当您使用TurboDemo制作屏幕截图时，软件将记录当前鼠标指针的位置（起始点）
• 在抓取下一张屏幕截图时，TurboDemo将记录鼠标指针现在的位置以及新坐标（结束点）
• 鼠标指针在一张幻灯中的结束点通常是下一张幻灯的起始点。所以照例所说，当您在一张幻灯中移动了起始点（蓝圈），您会发现在上一张的结束
• 点（红圈）位置也改变了

13、什么是“鼠标悬浮”？

14、当播放演示示例时没有导航。