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There are some very cool downloads suddenly appear on MSDN download site due to all new technologies, presented at Mix ‘09. So let’s start
- Silverlight 3 SDK beta 1
- If you do not want to install full SDK, you can install only runtime for Windows or Mac. Then, you can read documentation online. You do not need it, if you’re going to install
- Silverlight 3 tools beta 1 for VS2008 SP1. After you have all this, go to the official Silverlight web site and start working.
- If you re “in” .NET RIA Services, you can download March ‘09 preview of it also to use with new Silverlight. It also makes sense to read about what is it in Brad’s blog.
- Also new Silverlight toolkit was released with SL3 support and a bunch of new up/down controls, LayoutTransformer, Accordion and TransitioningContentControl.
- Microsoft Expression Blend 3 Preview. It includes SL3 and WPF3.5 SP1 support, but excludes SketchFlow by now.
To learn more about Silverlight 3.0 and Blend 3.0, you can see first day keynotes at mix 09, Rollup of what’s new in Silverlight 3 by Joe Stegman. This includes offline mode support by Mike Harsh. I’ll write another separate post for this topic, due to the fact, that I’m a desktop guy, so wary about the future of WPF.
After we done with all web stuff, let’s speak about a client
- Microsoft MultiPoint SDK. Do you want to use multitouch in your application? This SDK provides you with ability to use up to 250 individual mouse devices simultaneously. And yes, it works with Windows XP SP2 too
- Internet Explorer 8 for Windows XP x32, XP x64, Vista x32, Vista x64
- In case, that you do no have Windows Vista or Windows Server 2008, you can download 30-day evaluation virtual hard disk of Windows Vista or Windows Server 2008 Enterprise and see how it works .
- Also a small present for my old friends (from my military consulting era) – WPF and Silverlight APIs for GIS engine of ESRI. Have a fun!
That’s all by now, going to write a review for new book and will publish it soon (probably even before, you’ll finish with all those downloads and readings). So, stay tuned and be good people.
March 20th, 2009 · Comments (2)
Finally, I got a couple of free minutes to install Windows 7 x64 on my work machine. I have to admin, that installation was extremely fast. I just put DVD and keep talking with one of our architects near whiteboard. We enough to close only one issue, while Windows was installed and running.
There are number of visual glitches, but it’s beta after all. Next thing is to install drivers. Everything was great (it even find and install fingerprint reader), except three strange drivers on my Lenovo W500, that Windows 7 refused to find:
- PCI Serial Port
- PCI Simple Communications Controller
- SM Bus Controller
What can be those drivers? The clue was in SM Bus. It something related to board chipset. So, just checked Intel AMT, Intel PM45 and Intel LMS. My approximation was right, Windows 7 (and Microsoft Windows Update service) has no information regarding Intel stuff while all other (more rare drivers were installed fluently). I also need to install three of those drivers in Windows Vista compatibility mode in order to make it works.
Why this happen? Why it’s so hard to two huge conglomerates to work together in order to bring customers better installation experience? It seemed, that Lenovo did huge work with Microsoft to adopt its hardware drivers for Windows 7. Even switchable graphic cards worked perfect without additional drivers. So why Lenovo can, while Intel cannot?
I believe, that the problem is with Intel, who self fighting not to loss high end (and cost) processors, when the market requests low cost Atom-based machines with low power, yet good performing graphic processors.
Regarding biometric devices and switchable graphics. If you want to be able to login to domain with your fingerprint, be sure, that you visited Control Panel\Hardware and Sound\Biometric Devices\Change settings and check this option. By default it’s off.
Also it not seemed, that Windows 7 supports hybrid graphic cards. So unless I’ll find a way to get rid of this issue, I have to use Lenovo switchable graphics utility…
Next thing was to install gentlemen’s assembly:
- Windows Live Essentials
- Microsoft Office 2007 + SPs
- Total Commander
- Virtual PC 2008 SP1
- Visual Studio 2008 + SP1
All installations were fine, except small problem with business edition of Skype. Newly introduced Action Center advised me to install 4.0 beta version of Skype to prevent compatibility issues.
Another problem (not really Windows, but Microsoft related) is a time, that takes to install Visual Studio. For some reason installation of Office (which is not smaller, then VS) takes about 5 minutes on my machine, when for Visual Studio it takes more, then 40 minutes to be installed.Devdiv guys, please do something with this installer.
So two restarts and here we go. Windows 7 with all necessary software installed. Now issues started.
The only disappointment was because of Windows Experience Index (140GB 7200RPM hard disk is not big and fast enough for this version of OS). If this not, what is?
But it can be fixed easily by disabling cache on disk Device Manager –> Disk Drives –> Uncheck “Disk write caching policy”.
After doing this your system will run much faster and score will be increased.
I cannot understand the reason it checked by default for non solid state drives, which unsuitable for fast caching.
Switchable graphic cards are also seemed, to be an issue for Windows 7. It does not supported by now to switch graphic cards. All you can do is to pitch BIOS for denying OS from display driver detection and set the card you want. Here how my machine scores looks like with second graphic card enabled.
Taskbar is for fun, not for work
First of all new branded taskbar. How I supposed to distinct what running and what don’t? Shinny borders and backgrounds? Cool, but not really helpful for me. Just for test try to set “Hide when minimized” option for Outlook 2007 and then detect whether it running or not. Ah, yes, I have to go via tinny arrow to configure taskbar icons – too bad.
Another issue with this bar is configuration of shortcuts. Just in case, sometimes I want to run programs minimized or maximized or set start keys (right click on shortcut and Properties). How should I do it for pinned items?
I understand, that for 5 years Microsoft tried somehow to prevent from developers to junk users notification area on taskbar, by hiding, swapping and moving things there. Finally, they managed to solve it by putting all trash into big shiny icons? Just take a look on Microsoft Messenger appearance in tasksbar. You have to run it in Vista compatibility mode in order to prevent it putting icon in this area? Too bad! This not called “feature complete” for sure.
Yes, not everything perfect. For example drag and drop (DragonDrop) for Virtual PC will not work in regular mode in Windows 7. You have to create shared folder to workaround it. All programs, required elevated permission (those which triggered UAC on Vista all the time) will ask you for run only once, but if you accidently pressed anything else, then Allow, you’ll never be able to run it again (unless resetting UAC credentials in Windows). Also all those great programs, not required installations or any registry changes (for example Notepad++ or WinSCP will always treated as suspicious by Windows Defender, thus will start very slow all the time and some times required to be sent “for inspection”. This is general fail of Defender. Why me (as user) should wait you (as service provider) to check something. Do it on background, if you want to…
My first BSoD
Yes, I did it. I never was able to get Blue Screen of Death on Windows Vista. Here it happened after another restart. The reason was very funny: I did not closed Outlook before restarted Windows 7 (this fade screen with your applications will be forcibly closed). Yes, it was not really major BSoD. Windows made memory dump to prevent future crashes and send information. BTW, if you want to be able to report problems, you should use keys from Connect website, rather, then from MSDN. Beta reporting services is sensitive to product key.
Background services or what is really missing
My overall experience of Windows 7 is 7 of 10. It is major improvement of Windows Vista, but it still far from being perfect. I would advice to add OS foreground task dispatching. There are too many developers (also Microsoft’s, who trying to perform long tasks in UI thread). I think, that operation system should handle such cases and dispatch jobs to background to prevent UI freeze.
Another thing, is to find good compromise between annoying user and smart operations. Other words, do not try to assume what customer want to do, let him to decide (or at least enable such option). Good example for this is very odd Clear Type wizard. What would you answer to such question?
Why I need to see the same stuff three times, when all I want it file manager?
Stop trying to replace software. You already screwed with Microsoft Valet.
ISO file burn directly from Windows is really great feature, but an ability to mount iso images as virtual disks would be much better.
Other words, if you, Microsoft, want to create great operation system – do operation system, do not try to complete OS issues with another nice to have features. But no words – great work. Thank you.
Ah, and do not forget to fire everybody in IE dev team… It awful and has no future.
Next time we’ll speak about developer point of view to Windows 7.
January 13th, 2009 · Comments (26)
I’m working a lot with p/invoke, and know how it’s hard to produce correct signature for unmanaged method. So, today I decided to publish basic cheat sheet for methods, parameters and attributes you should use in order to invoke unmanaged methods from managed code without a lot of problems. We start with data type translations. Here the table to understand it.
|Data type from unmanaged signature||Data type in managed signature|
the same with all other simple types such as double, uint, etc or private objects
the same with all other simple types such as double, uint, etc or private objects
later, you should get ascii string by using System.Runtime.InteropServices.Marshal.PtrToStringAnsi() method
later, you should get ascii string by using System.Runtime.InteropServices.Marshal.PtrToStringUni() method
|const int*||ref int|
|const char*||[System.Runtime.InteropServices.In()] [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.LPWStr)] string|
|… (variable argument)||[System.Runtime.InteropServices.In()] [System.Runtime.InteropServices.MarshalAs(System.Runtime.InteropServices.UnmanagedType.AsAny)] object|
You can use either System.Runtime.InteropServices.In or System.Runtime.InteropServices.Out attribute to specify how arguments should be used.
Now we done with simple arguments, let’s see what can be done when argument is actually callback or delegate?
|Unmanaged definition||Managed definition|
|typedef void (*MyCallback)(int Arg)||
[System.Runtime.InteropServices.UnmanagedFunctionPointer(System.Runtime.InteropServices.CallingConvention.Cdecl)]delegate void MyCallback(int Arg)
To call all those methods, we should know managed equivalents of unmanaged types. Here the table. The rule is simple – know how many bytes unmanaged type has and find managed type with the same number of bytes. Other words, you can marshal int into IntPtr too…
|Unmanaged type||Managed equivalent|
|char||sbyte (signed), byte (unsigned)|
|int, long (signed)||Int32|
|int, long (unsigned)||UInt32|
But not only types are problem in managed/unmanaged transitions. Also structures are aligned differently. For this purpose we can use StructLayout attribute. Even if unmanaged classes are sequential and you used correct managed data types, you can find you with problems in Pack. What “pack” is? Pack is actually slot size in bytes for members of your structure. It can be 0, 1, 2, 4, 8, 16, 32, 64, or 128 and depends on the platform and application setting.
Now you can see, that it is not very complicated to create managed signatures when you have header of unmanaged assemblies. So go ahead and ask, if I missed something.
That’s all by now. Have a nice day and be good people.
October 20th, 2008 · Comments (16)
Today, only updates
Yahoo finally releases Yahoo! Messenger for Vista – this was one of very first prototypes, shown in Mix last year. I did not install it, however, here a couple of review Erik Burke, Tim Sneath and Ryan Stewart. As for me, they lost "wow effect" last year
Vista SP1 RC1 available for MSDN subscribers (via Nick Whites). Nothing special, 40 minutes of installation, profile information loss and performance fixes
Office 2007 SP1 is expected to ship 10-December week. This time it is not RC or Beta, but final product (via Mary Jo Foley). Great work.
Windows XP SP3 is very close to RC1, but nothing about public beta yet.
PDC 2008 (canceled last year) will be on October 27-30 in LA (hello, Peter). It promised to be great event about the company’s emerging services platform efforts, .NET, Windows and Mobile technologies.
A little about mobile devices, while waiting for my new mega-device (more information soon): Dell is about to enter mobile phone industry in 2008, Opera compiled their browser for Brew platform (hello, Pelephone), while Google create their mobile version for IPhone. Windows Mobile 6.1 is going to be cool. Here screenshorts. Meanwhile, you can update your Mobile Office to version 6.1 for free or your Nokia (N-series) with Internet Radio application. As for me, 8 hours speak time and 30 days standby, quad-band. Those are features, that you need from your handy.
Well, that’s it for now. Have a nice weekend.
Now I have a question for you. What do you think, about such format of posts? Should ?I go on with it or continue to write post-per-event?
December 6th, 2007 · Comments (1)
Everyone knows a useful Windows utilities, SoundRecorder.exe application. I believe, that most of you knows where this application in your disk. If not, it’s always possible to look into shortcut.
So, let’s go to %SystemRoot%\system32 and look for the application
So far so good. Now, let’s look for this file by using File.Exist method of C#
It returns true. Of course, the file SoundRecorder.exe is there. As well as all other "smart" methods for seeking for system directories
File.Exists(Environment.SystemDirectory + @"\SoundRecorder.exe");
File.Exists(Environment.GetFolderPath(Environment.SpecialFolder.System) + @"\SoundRecorder.exe");
All those are true. Now let’s compile the file not for "Any CPU", but for x64. It still works! Why now, it is there. Now, let’s try to compile for x86 or, just run our process from other 32 bit process (emulation!). You’ll get false. Sound Recorder just disappears in x86…
Actually, the problem is x64 file system and registry redirection. Actually, the file exists, but not in C:\Windows\System32. It is in C:\Windows\Sysnative directory, which actually not exists. According MSDN, it should be transparent for your applications. Actually, it’s transparent for those applications, which works not in WOW64 mode.
In order to make it work, you should expand the actual location, by using
File.Exists(Environment.ExpandEnvironmentVariables(@"%systemroot%\Sysnative") + @"\SoundRecorder.exe");
Now, the file exists, but not in x64 mode. What to do? Check both locations? Probably yes (don’t forget to check the target platform). You can either disable registry redirection, by using native method.
[DllImport("advapi32.dll", SetLastError = true)]
static extern int RegDisableReflectionKey(IntPtr hBase);
For your convenience, here the list of system programs, that can "fool you" in x64 platforms (Vista):
Have a nice day
December 3rd, 2007 · Comments (14)
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