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HttpCapabilitiesBase.CanInitiateVoiceCall Eigenschaft

Definition

Ruft einen Wert ab, der angibt, ob das Browsergerät einen Sprachanruf einleiten kann.

public:
 virtual property bool CanInitiateVoiceCall { bool get(); };
public virtual bool CanInitiateVoiceCall { get; }
member this.CanInitiateVoiceCall : bool
Public Overridable ReadOnly Property CanInitiateVoiceCall As Boolean

Eigenschaftswert

Boolean

true, wenn das Browsergerät einen Sprachanruf initiieren kann, andernfalls false. Der Standardwert ist false.

Beispiele

Das folgende Codebeispiel zeigt, wie Sie ermitteln können, ob das Browsergerät in der Lage ist, einen Sprachanruf zu initiieren.

<%@ page language="C#"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    void Page_Load(Object Sender, EventArgs e)
    {
        CheckBrowserCaps();
    }

    void CheckBrowserCaps()
    {
        String labelText = "";
        System.Web.HttpBrowserCapabilities myBrowserCaps = Request.Browser;
        if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).CanInitiateVoiceCall)
        {
            labelText = "Browser can initiate a voice call.";
        }
        else
        {
            labelText = "Browser cannot initiate a voice call.";
        }

        Label1.Text = labelText;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Browser Capabilities Sample</title>
</head>
<body>
    <form runat="server" id="form1">
        <div>
            Browser Capabilities:
            <p/><asp:Label ID="Label1" Runat="server" />
        </div>
    </form>
</body>
</html>
<%@ page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
        CheckBrowserCaps()
    End Sub

    Function CheckBrowserCaps()

        Dim labelText As String = ""
        Dim myBrowserCaps As System.Web.HttpBrowserCapabilities = Request.Browser
        If (CType(myBrowserCaps, System.Web.Configuration.HttpCapabilitiesBase)).CanInitiateVoiceCall Then
            labelText = "Browser can initiate a voice call."
        Else
            labelText = "Browser cannot initiate a voice call."
        End If

        Label1.Text = labelText

    End Function 'CheckBrowserCaps
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Browser Capabilities Sample</title>
</head>
<body>
    <form runat="server" id="form1">
        <div>
            Browser Capabilities:
            <p/><asp:Label ID="Label1" Runat="server" />
        </div>
    </form>
</body>
</html>

Hinweise

Die CanInitiateVoiceCall Eigenschaft gilt nur für WML-kompatible mobile Geräte.

Gilt für