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C++ Q&A: CD Burning and Device Discovery with IMAPI

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

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Draw lines excactly on physical device pixels

When you draw a line in WPF you will experience that they often appear blurry. The reason for this is the antialiasing system that spreads the line over multiple pixels if it doesn't align with physical device pixels.

How to create a windows mobile (Smart Device) .Cab installer

A Cab file is the default setup format for Windows CE and Windows Mobile devices (similar to windows .msi files). You probably already have installed several application using .cab files, and are familiar with the concept. One point which is often unknown is that .cab files are processed by wceloader.exe, and it can only install one .cab file at a time. That means we cannot have nested .cab files. It doesn't mean we cannot have .cab files contained by another .cab, but the contained .cab files will not be installed during the installation of the container .cab. We should install it manually after the container .cab file installation has been completed.

There are two ways to create a cabinet (.Cab) file. The traditional one, and the friendly VS Smart Device Cab project which doesn't require additional coding, but which also relies on the traditional one at low-level.

How to transfer files between computer and mobile device using bluetooth

What is Bluetooth? How can I have it on my computer?

Bluetooth wireless technology is a communication technology that allows two devices to communicate wirelessly. Most of the notebooks are nowadays equipped with bluetooth. For those notebooks or computers that don't, you can use a bluetooth dongle to add the functionality and it just costs you around $5. Although higher price range bluetooth dongles are available but it makes no sense of buying them if you just plan to connect your mobile device to the computer. Look for one that has Bluetooth v2.0 + EDR (Enhance Data Rate) supporting speeds of upto 3Mbps and with Vista support. You can easily have one of that kind in just $5.

Setting up bluetooth to work on your computer

Just Insert the bluetooth dongle in the USB.
It should get detected by your Operating System and should be ready to use. In case it is just detected as a new hardware, you need to install drivers for it that came with your bluetooth dongle (You can try Google to find the drivers).
Once drivers are installed, a bluetooth notification icon will appear in your system tray.
Right Click on it to access Settings (This may vary with your bluetooth dongle).
Make sure you have turned Discovery On (It allow others to see your computer).
Switch On the bluetooth on the mobile device.

Runtime development for All mobile device



   I am planning to implement a runtime or Environment . which allow any Mobile application to run on top of IT.

  Please give me couple of links or materials to help me out.

Thanks in advance.


Device detection: standard & mobile web applications


I would like to host standard web pages as well as mobile web pages on a single website/virtual directory.


Is there a simple way of sniffing out the machine type and then presenting either web or mobile application depending on the device?

Or is there a better solution other than creating separate website?

Many thanks

Detecting PPC device on startup page to redirect?

I was wondering (since a search didn't find any posts) if there is a way for my startup page to detect what kind of device (PocketPC or web browser specifically) is loading the page and if it is a PocketPC, then redirect to the mobile pages? I will only be using PocketPC's exclusively as a mobile device.

Thanks for any suggestions!

Create web site specific to mobile device, how to detect?



I have a website that is written in .Net 2.0 which uses all the nice rich functionality of the web (Ajax, javascript etc..).  However I have noticed that the site does not display very well on mobile devices. 

So therefore I would like to create a more streamlined version of my site that is better tailored to these devices.  However how do detect that the user has come to the site via a mobile device and how can i redirect them to my tailored page

Many thanks in advance

Obtain mobile device screen size



I am trying to get the screenHeight and width:


 // Get MobileCapabilities from current Request.Browser
        MobileCapabilities currentCapabilities = (MobileCapabilities)Request.Browser;
        // get a property of the  browser 
        Response.Write(currentCapabilities.ScreenPixelsHeight +  " <br>");
        Response.Write(currentCapabilities.ScreenPixelsWidth  + " <br>");


 but this is always show that the Height is 480 & the width is 640

I am trying on HTC with Opera Mobile 9.5

Any Advice?

Urgently Need Help : Unrecognized Tag Prefix or device filter 'CR'


I have download and installed the Crystal Report for 2010 from my Visual Studio 2010. 


Problem 1 :

When I create a new crystal report in the Project, the aspx created code below :

<CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server"
            AutoDataBind="True" GroupTreeImagesFolderUrl="" Height="1202px"
            ReportSourceID="MemberList" ToolbarImagesFolderUrl="" ToolPanelWidth="200px"
            Width="1104px" />
        <CR:CrystalReportSource ID="MemberList" runat="server">
            <report filename="MemberList.rpt">

 but there is error : unrecognized tag prefix or device filter 'CR'


Problem 2 :

The vb code of the crystal report that I had created has 'ComponentModel is not a member of 'MYPROJECT.system'



Foundations: Discover a New WCF with Discovery


Juval Lowy explains how the industry-standard discovery solution enables clients to discover available addresses for WCF calls at runtime, and he provides tools and helper classes to simplify the process.

Juval Lowy

MSDN Magazine January 2010

Going Places: Mobile Device Provisioning With SyncML


OMA Device Management (OMA-DM), based on a dialect of XML called SyncML, can be used to provision and manage mobile devices in an enterprise scenario. We'll show you how.

Ramon Arjona

MSDN Magazine February 2009

Concurrent Affairs: Asynchronous Device Operations


Jeff Richter uses the AsyncResult class to implement the CLR's Asynchronous Programming Model to perform hardware device operations asynchronously.

Jeffrey Richter

MSDN Magazine June 2007

Wireless Web: Microsoft Mobile Internet Toolkit Lets Your Web Application Target Any Device Anywhere


If you've built Web sites using ASP.NET, you'll welcome the Microsoft Mobile Internet Toolkit (MMIT). MMIT extends the Visual Studio .NET IDE you already know by providing new controls for handheld devices letting you easily develop applications for wireless devices. This means you can write less code while adapting it to more devices. Not only does MMIT integrate with Visual Studio .NET, it extends ASP.NET as well. This article gives you the background you need to write, test, and deploy a site with MMIT and make all your code able to target specific devices for a custom fit.

Paul Yao and David Durant

MSDN Magazine November 2002

Serial Comm: Use P/Invoke to Develop a .NET Base Class Library for Serial Device Communications


Out-of-the-box, the only way of coding RS232 serial communications applications in the .NET environment is to import the outdated and somewhat limited MSComm ActiveX control. This article describes the development of a lean, multithreaded, and modern RS232 base class library in C# managed code. The library uses Platform Invocation Services to interact with the Win32 API directly. Application programmers can use the library from any .NET language through inheritance; the article explores examples written in C# and Visual Basic .NET.

John Hind

MSDN Magazine October 2002

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