ASP Browser Capabilities
ASP Browser Capabilities Component
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ASP Browser Capabilities Component
The ASP Browser Capabilities component creates a BrowserType object that determines the type, capabilities and version number of a visitor's browser.
When a browser connects to a server, a User Agent header is also sent to the server. This header contains information about the browser.
The BrowserType object compares the information in the header with information in a file on the server called "Browscap.ini".
If there is a match between the browser type and version number in the header and the information in the "Browscap.ini" file, the BrowserType object
can be used to list the properties of the matching browser. If there is no match for the browser type and version number in the Browscap.ini file, it
will set every property to "UNKNOWN".
Syntax
<%
Set MyBrow=Server.CreateObject("MSWC.BrowserType")
%>
ASP Browser Capabilities Example
The example below creates a BrowserType object in an ASP file, and displays
some of the capabilities of your browser:
Example
<!DOCTYPE html>
<html>
<body>
<%
Set MyBrow=Server.CreateObject("MSWC.BrowserType")
%>
<table border="0" width="100%">
<tr>
<th>Client OS</th><th><%=MyBrow.platform%></th>
</tr><tr>
<td >Web Browser</td><td ><%=MyBrow.browser%></td>
</tr><tr>
<td>Browser version</td><td><%=MyBrow.version%></td>
</tr><tr>
<td>Frame support?</td><td><%=MyBrow.frames%></td>
</tr><tr>
<td>Table support?</td><td><%=MyBrow.tables%></td>
</tr><tr>
<td>Sound support?</td><td><%=MyBrow.backgroundsounds%></td>
</tr><tr>
<td>Cookies support?</td><td><%=MyBrow.cookies%></td>
</tr><tr>
<td>VBScript support?</td><td><%=MyBrow.vbscript%></td>
</tr><tr>
<td>JavaScript support?</td><td><%=MyBrow.javascript%></td>
</tr>
</table>
</body>
</html>
Output:
Web Browser
IE
Browser version
5.0
Frame support?
True
Table support?
True
Sound support?
True
Cookies support?
True
VBScript support?
True
JavaScript support?
True
Show example »
The Browscap.ini File
The "Browscap.ini" file is used to declare properties and to set default values for browsers.
This section is not a tutorial on how to maintain "Browscap.ini" files, it only shows you the basics;
so you get an idea what the file is all about.
The "Browscap.ini" file can contain the following:
[;comments]
[HTTPUserAgentHeader]
[parent=browserDefinition]
[property1=value1]
[propertyN=valueN]
[Default Browser Capability Settings]
[defaultProperty1=defaultValue1]
[defaultPropertyN=defaultValueN]
comments
Optional. Any line that starts with a semicolon are ignored by the BrowserType object
HTTPUserAgentHeader
Optional. Specifies the HTTP User Agent header to associate with the
browser-property value statements specified in propertyN. Wildcard characters are allowed
browserDefinition
Optional. Specifies the HTTP User Agent header-string of a browser to
use as the parent browser. The current browser's definition will inherit all
of the property values declared in the parent browser's definition
propertyN
Optional. Specifies the browser properties. The following table lists some possible properties:
valueN
Optional. Specifies the value of propertyN. Can be a string, an integer (prefix with #), or a Boolean value
defaultPropertyN
Optional. Specifies the name of the browser property to
which to assign a default value if none of the defined HTTPUserAgentHeader
values match the HTTP User Agent header sent by the browser
defaultValueN
Optional. Specifies the value of defaultPropertyN. Can be a string, an integer (prefix with #), or a Boolean value
A "Browscap.ini" file might look something like this:
;IE 5.0
[IE 5.0]
browser=IE
Version=5.0
majorver=#5
minorver=#0
frames=TRUE
tables=TRUE
cookies=TRUE
backgroundsounds=TRUE
vbscript=TRUE
javascript=TRUE
javaapplets=TRUE
ActiveXControls=TRUE
beta=False
;DEFAULT BROWSER
[*]
browser=Default
frames=FALSE
tables=TRUE
cookies=FALSE
backgroundsounds=FALSE
vbscript=FALSE
javascript=FALSE
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