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Getting Started with Samples

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All the example code contained in the Windows Image Acquisition (WIA) Automation Layer reference works in multiple languages. This way you can copy the examples from the reference pages into any of the following:

Visual Basic 6.0

To create a Microsoft Visual Basic project for any of the examples in the reference topics, perform the following steps.

  1. Start the Visual Basic Development Environment.
  2. Select Standard EXE.
  3. Click Components from the Project menu (or press Ctrl-T).
  4. Scroll down and select Microsoft Windows Image Acquisition Library v2.0 by placing a checkmark in front of it. Of the three new controls that appear on in the Toolbox, double click CommonDialog and DeviceManager to add them to your form.

Note

The data types are commented out in the examples in the reference pages so you can copy and paste them into Microsoft Visual Basic Scripting Edition (VBScript) where all data types are a Variant. Visual Basic programmers should remove the comment mark (') in front of each data type.

 

Windows Script Host

To create a Windows Script Host project, copy the following into an empty file with a .wsf extension.

<job>
<reference object="WIA.DeviceManager" />
<object id="DeviceManager1" progid="WIA.DeviceManager" />
<object id="CommonDialog1" progid="WIA.CommonDialog" />
<script language="VBScript">

'Paste Sample Code Here

</script>
</job>

HTML Application

To create an HTML Application (HTA), copy the following into an empty file with an .hta extension. In addition, if you have not done so already, create the Visual Basic Script Constants file.

<html>
<title>Sample HTA</title>
<hta:application id="oHTA"/>
<object ID="DeviceManager1" Width=0 Height=0 ClassID="CLSID:E1C5D730-7E97-4D8A-9E42-BBAE87C2059F"></object>
<object ID="CommonDialog1" Width=0 Height=0 ClassID="CLSID:850D1D11-70F3-4BE5-9A11-77AA6B2BB201"></object>
<script language="vbscript" src="wiaaut.vbs"></script>
<script language="vbscript">

'Paste Sample Code Here

</script>
</head>
<body scroll="no">
</body>
</html>

Script in an HTML Application

To create an HTML file with script, copy the following into an empty file with an .htm extension. In addition, if you have not done so already, create the Visual Basic Script Constants file.

Note

Since the Windows Image Acquisition (WIA) Library is not marked safe for scripting, proper functionality is dependent on your security settings.

 

<html>
<title>Sample HTML</title>
<object ID="DeviceManager1" Width=0 Height=0 ClassID="CLSID:E1C5D730-7E97-4D8A-9E42-BBAE87C2059F"></object>
<object ID="CommonDialog1" Width=0 Height=0 ClassID="CLSID:850D1D11-70F3-4BE5-9A11-77AA6B2BB201"></object>
<script language="vbscript" src="wiaaut.vbs"></script>
<script language="vbscript">

'Paste Sample Code Here

</script>
</head>
<body>
</body>
</html>

Active Server Pages

To create an Active Server Page, copy the following into an empty file with an .asp extension.

Note

The script on Active Server Pages (ASP) runs on a non-interactive desktop so using the CommonDialog or VideoPreview control in an Active Server Page will not work as expected. In addition, in the interest of increased security, the default Server Security Settings needs to be adjusted before you can successfully create a DeviceManager object. For instructions on changing your security settings, see How to Configure Security Settings. Also, for security reasons you need to change any calls to the Visual Basic function CreateObject to instead use Server.CreateObject.

 

<%@ Language=VBScript %>
<!--METADATA TYPE="TypeLib" UUID="94A0E92D-43C0-494E-AC29-FD45948A5221"-->
<% 

'Paste Sample Code Here

%>