How to Code a Progress Bar for Windows 7 to Also Update Itself on the Taskbar

How do I code a progress bar for Windows 7 to also update itself on the taskbar?

There's a good article in MSDN magazine about the new taskbar APIs. And yes, the feature is awesome :-)

Essentially, it's all about implementing IFileOperation. There's a good article about using it in managed code here.

How to show progress in windows 7 taskbar (using Qt)?

I think they used Win7 API functions and encapsulated them in their library. You can include by hand those headers and use them too. Here you can find a help topic and demo project: codeproject.com/KB/vista/SevenGoodiesTaskbarStatus.aspx

But its only for win7. Not crossplatform. Good luck

update mar 05, 2014

This question was asked a long time ago and many things have changed since. For those asking themselves the same question today (beginnings of 2014) then my personal answer is that Qt 5 fully supports progress in taskbar and different kind of beautiful extras. See QWinTaskbarProgress (upd nov 28, 2016) for details

Win7 progress bar on the application icon in the task bar?

The number one result from a Google search for "taskbar progress wpf":

Showing Progress in the Windows 7 Taskbar with WPF 4

Using Windows 7 Taskbar progress indicator from a Windows Explorer namespace extension

(Ideally we should use the Windows
Explorer built in progress indicator
in the address bar, but I'm told that
there isn't an API for that from my
component vendor)

If its a namespace extension your supposed to use the IProgressDialog interface, Its built into Explorer and also nativity supports the Taskbar progress indicator on Windows 7.

http://www.codeproject.com/KB/dotnet/winprogressdialog.aspx

http://www.codeproject.com/KB/shell/iprogressdialognet.aspx

dmex

Display progress bar in the program's task bar icon

Yes.

http://code.msdn.microsoft.com/WindowsAPICodePack

This has a lot of Windows Vista/7 features for .NET (C#/VB/etc.), including Task Bar Progress Bars.

Information needed on how to code for Windows 7 Taskbar in c#

Why not get hold of the Code Pack and try using it with a lower version of the .NET Framework? I have read a lot of the code in there and little if any of it relies on .NET 3.5 features. If you're using VS 2010 you could probably succeed in building it against 2.0 or whatever you're using no problem. The license allows you to integrate code from the library into your project, to change it, to basically treat it as your own, so you've got nothing to lose.