VB调用Microsoft Agent控件与电脑交谈编程

VB调用Microsoft Agent控件与电脑交谈

所属类别：编程

Microsoft Agent 控件比Office 中的助手更进了一步，它提供的动画人物不仅有生动、有趣的动作，而且还能通过声卡、麦克风与用户进行交谈，这些功能使计算机更具人性魅力，其应用前途相当广泛。Microsoft Agent 控件的内部机制很复杂，但用VB 来操纵它却是异乎寻常的方便，本文将介绍VB 6.0 调用Microsoft Agent 控件的基本方法。1. 安装Microsoft Agent 控件

(1) 首先要安装Microsoft Agent 的核心组件 msagent.exe

(2) 接着要安装Lernout amp; Hauspie TruVoice Text-to-Speech Engine( 完成从文字合成语音的工作) cgram.exe。

(3) 最后要安装 Microsoft Command and Control Speech Engine( 提供语音识别功能) Actcnc.exe。

(4) 另外还需要Agnet 动画人物数据文件，在本文中使用了Genie.acs、Robby.acs 两个文件。

上述文件均可从 http://www.microsoft.com/workshop/prog/agent 下载。2. Microsoft Agent 控件的初始化

先把Microsoft Agent 控件添加到VB 的控制工具条上，并在用户的Form 上绘制该控件( 在下述例子中，其Name 属性设为MyAgent)。下面的代码调用IAgentCtlCharacters::Load() 方法装入一个动画人物的数据，调用IAgentCtlCharacter::Show()/Hide() 方法来显示/ 隐藏动画人物。Const DATAPATH = "c:\"Dim Genie As IAgentCtlCharacterDim Robby As IAgentCtlCharacterDim GenieRequest1, GenieRequest2 As IAgentCtlRequestDim RobbyRequest1 As IAgentCtlRequestPrivate Sub Form_Load() ' 装入动画人物数据，其中第一个参数为CharacterID MyAgent.Characters.Load "Genie", DATAPATH amp; "Genie.acs" MyAgent.Characters.Load "Robby", DATAPATH amp; "Robby.acs" ' 获取与CharacterID 相对应的IAgentCtlCharacter 变量 Set Genie = MyAgent.Characters("Genie") Set Robby = MyAgent.Characters("Robby") ' 显示/ 隐藏动画人物 Genie.Show Genie.HideEnd Sub3. Microsoft Agent 控件的动画编程

每个动画人物都有自己特定的动作，例如Genie 有听、看、读、写、发怒、感谢等数十种动画形态。可以调用IAgentCtlCharacter::play() 方法来设置动画动作。为了在多个动画人物之间协调它们的动作，比如让Robby 等待Genie 的某个动作执行完毕后，方才做另外一个动作，这时可采用IAgentCtlCharacter::Wait() 方法来实现同步。在数十种动画动作中有一类比较特殊( 动作名以"ing" 为后缀，如"Searching")，一旦执行便循环播放一段动画，只有调用IAgentCtlCharacter::Interrupt() 方法才能终止。示例代码如下：Private Sub Command1_Click() Genie.Show ' 执行名为"Suggest" 的动作 Genie.Play "Suggest"' 把Genie 移动到座标(200,200) 处，用GenieRequest1 来标识该动作请求 Set GenieRequest1 = Genie.MoveTo(200, 200)' 执行名为"Searching" 的循环动画动作，用GenieRequest2 来标识该动作请求 Set GenieRequest2 = Genie.Play("Searching") ' Robby 等待Genie 的MoveTo 方法执行完毕，方才显示 Robby.Wait GenieRequest1 Robby.Show Robby.Play "Suggest" Robby.Play "read" Robby.Play "Congratulate" ' 由Robby 来终止Genie 的循环动画动作 Robby.Interrupt GenieRequest2 Genie.Play "write" Genie.Hide Robby.HideEnd Sub4. Microsoft Agent 控件的语音合成功能

Microsoft Agent 控件支持英语的语音合成功能，只需输入句子的文字，便会生成该句子的语音信号并通过声卡、音箱播放出来。语音合成功能通过调用IAgentCtlCharacter::Speak() 方法来实现。输出中文时不能用上述方法，只能用WAV 文件代替，给Speak() 方法的第一个参数传递文字气球中包含的文字，给第二个参数传递一个WAV 文件路径。同样为同步多个动画人物的语音输出也必须使用IAgentCtlCharacter::Wait() 方法。目前Microsoft Agent 控件还不支持多个人物的声音混合效果。具体实现代码如下：Private Sub Command2_Click() Genie.MoveTo 100, 200 Genie.Show Genie.Play "Greet"' Speak() 方法的第一个参数即为需进行语音合成的句子文字 Genie.Speak "I am Genie, your most humble and loyal servant." Genie.Speak "Where is Robby?" Set GenieRequest1 = Genie.Play("LookLeft") ' 等Genie 的"LookLeft" 执行以后，再执行Robby 的动作 Robby.Wait GenieRequest1 Robby.MoveTo 250, 200 Robby.Show Robby.Play "Greet" Robby.Speak "Sorry for the delay."Set RobbyRequest1 =Robby.Speak("Traffic is really busy today on the Information Superhighway.") ' 等Robby 讲完了，Genie 再讲 Genie.Wait RobbyRequest1 Genie.Play "LookLeftReturn"Genie.Speak "Welcome to the release of Microsoft Agent, the new ActiveX technology that supports interactive characters"' 输出中文语音，" 欢迎光临" 的中文语音包含在welcome.wav 中 Genie.Speak " 欢迎光临", "c:\welcome.wav" Genie.Hide Robby.HideEnd Sub5. Microsoft Agent 控件的语音识别功能

Microsoft Agent 控件具有语音识别能力，用户可以向动画人物发出语音命令( 同时按住Scroll Lock 键)。Microsoft Agent 控件为每个Agent 动画人物提供一个特殊物命令窗口，用以显示该动画人物能够接受的所有语音命令。该命令窗口中的命令不能用鼠标或键盘来选取，只能通过语音。可以用IAgentComands::Add() 方法来为命令窗口添加自定义命令。第一个参数是命令的标识符ID，第二个参数是该命令在命令窗口中的显示标签，第三个参数是该命令对应的语音识别句子。当用户通过麦克风向动画人物发出命令时会激发IAgent 的Command 事件，可以编写一个接收Command 事件的过程来完成与语音命令相对应的任务。Private Sub Command3_Click() Static initialized As Boolean ' 添加自定义命令 If Not initialized Then Genie.Commands.Add "Word", "Run Word", "word", True, True Genie.Commands.Add "Time", "What time is it?", "What time is it?", True, True Genie.Commands.Add "Bigger", "Bigger", "Bigger", True, True Genie.Commands.Add "Smaller", "Smaller", "Smaller", True, True initialized = True End If Genie.Show Genie.Speak "Can I help you?"End SubPrivate Sub MyAgent_Command(ByVal UserInput As Object) Select Case UserInput.Name Case "Time" ' 当听到"What time is it?" 后回答当前时间 Genie.Speak "The time is " amp; Time Case "Word" ' 当听到"word" 后，便运行MS Word Genie.Speak "Yes,sir!" Shell "d:\winword\winword.exe", vbNormalFocus Case "Bigger" ' 当听到"bigger" 后，Genie 会放大 Genie.Width = Genie.Width * 1.5 Genie.Height = Genie.Height * 1.5 Case "Smaller" ' 当听到"samller" 后，Genie 会缩小 Genie.Width = Genie.Width / 1.5 Genie.Height = Genie.Height / 1.5 End SelectEnd Sub/*////////////////////////////////////////////////////////////////////*//* 附完整源程序 agent.frm */VERSION 5.00Object = "{F5BE8BC2-7DE6-11D0-91FE-00C04FD701A5}#1.5#0"; "AGENTCTL.DLL"Begin VB.Form Form1 Caption = "Form1" ClientHeight = 3195 ClientLeft = 60 ClientTop = 345 ClientWidth = 4680 LinkTopic = "Form1" ScaleHeight = 3195 ScaleWidth = 4680 StartUpPosition = 3 'Windows Default Begin VB.CommandButton Command3 Caption = "Command3" Height = 615 Left = 2880 TabIndex = 2 Top = 360 Width = 1095 End Begin VB.CommandButton Command2 Caption = "Command2" Height = 615 Left = 1320 TabIndex = 1 Top = 360 Width = 1095 End Begin VB.CommandButton Command1 Caption = "Command1" Height = 615 Left = 120 TabIndex = 0 Top = 360 Width = 855 End Begin AgentObjectsCtl.Agent MyAgent Left = 360 Top = 2520 EndEndAttribute VB_Name = "Form1"Attribute VB_GlobalNameSpace = FalseAttribute VB_Creatable = FalseAttribute VB_PredeclaredId = TrueAttribute VB_Exposed = FalseOption ExplicitConst DATAPATH = "c:\"Dim Genie As IAgentCtlCharacterDim Robby As IAgentCtlCharacterDim GenieRequest1, GenieRequest2 As IAgentCtlRequestDim RobbyRequest1 As IAgentCtlRequestPrivate Sub Command1_Click() Genie.Show Genie.Play "Suggest" Set GenieRequest1 = Genie.MoveTo(200, 200) Set GenieRequest2 = Genie.Play("Searching") Robby.Wait GenieRequest1 Robby.Show Robby.Play "Suggest" Robby.Play "read" Robby.Play "Congratulate" Robby.Interrupt GenieRequest2 Genie.Play "write" Genie.Hide Robby.HideEnd SubPrivate Sub Command2_Click() Genie.MoveTo 100, 200 Genie.Show Genie.Play "Greet" Genie.Speak "I am Genie, your most humble and loyal servant." Genie.Speak "Where is Robby?" Set GenieRequest1 = Genie.Play("LookLeft") Robby.Wait GenieRequest1 Robby.MoveTo 250, 200 Robby.Show Robby.Play "Greet" Robby.Speak "Sorry for the delay."Set RobbyRequest1 = Robby.Speak("Traffic is really busy today on the Information Superhighway.") Genie.Wait RobbyRequest1 Genie.Play "LookLeftReturn" Genie.Speak "Welcome to the release of Microsoft Agent, the newActiveX technology that supports interactive characters" Genie.Speak " 欢迎光临", "c:\welcome.wav" Genie.Hide Robby.HideEnd SubPrivate Sub Command3_Click() Static initialized As Boolean If Not initialized Then Genie.Commands.Add "Word", "Run Word", "word", True, True Genie.Commands.Add "Time", "What time is it?", "What time is it?", True, True Genie.Commands.Add "Bigger", "Bigger", "Bigger", True, True Genie.Commands.Add "Smaller", "Smaller", "Smaller", True, True initialized = True End If Genie.Show Genie.Speak "Can I help you?"End SubPrivate Sub Form_Load() MyAgent.Characters.Load "Genie", DATAPATH amp; "Genie.acs" MyAgent.Characters.Load "Robby", DATAPATH amp; "Robby.acs" Set Genie = MyAgent.Characters("Genie") Set Robby = MyAgent.Characters("Robby") Genie.Show Genie.HideEnd SubPrivate Sub MyAgent_Command(ByVal UserInput As Object) Select Case UserInput.Name Case "Time" Genie.Speak "The time is " amp; Time Case "Word" Genie.Speak "Yes,sir!" Shell "d:\winword\winword.exe", vbNormalFocus Case "Bigger" Genie.Width = Genie.Width * 1.5 Genie.Height = Genie.Height * 1.5 Case "Smaller" Genie.Width = Genie.Width / 1.5 Genie.Height = Genie.Height / 1.5 End SelectEnd Sub

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