Example of how to use DWM window thumbnails in .Net | The Sandbox

Sven Groot
My name has 9 letters. Coincidence? I think not...

Download:Link for Example of how to use DWM window thumbnai(0 Bytes)

As you may know, the Desktop Window Manager in Windows Vista uses live window thumbnails in several locations, such as the thumbnails when hovering over taskbar buttons, and the Flip (alt-tab) and Flip3D (winkey-tab) features.

These thumbnails can be accessed and used by any application. This sample demonstrates how to use these thumbnails in a .Net application.

Simply launch the application and select a window from the list.

Naturally, this sample requires Windows Vista with the DWM (Aero Glass UI) enabled. It has been tested with Vista beta 2, other versions might not work.

littleguru
<3 Seattle

Cool sample. I like the class structure, although you have public methods in a control that takes int pointer etc...

I guess you didn't "enhance" that, because it is just a simple prototype.

Sven Groot
My name has 9 letters. Coincidence? I think not...

Yeah, this should in no way be seen as an example in good control design. Smiley

The only reason I even bothered with a SafeHandle for the HTHUMBNAIL is because fxcop told me to. Tongue Out

Angus
.

Is this the first Windows Vista specific application that has been posted in the Sandbox?

If it is: Cool, it is nice to see that people are looking ahead, and I hope to try this out as soon as I have finished downloading and installing Windows Vista Beta 2.

Angus Higgins

Sven Groot
My name has 9 letters. Coincidence? I think not...

littleguru wrote:
Cool sample. I like the class structure, although you have public methods in a control that takes int pointer etc...

I changed it to a IWin32Window, you happy now? Tongue Out

littleguru
<3 Seattle

Sven Groot wrote:

littleguru wrote: Cool sample. I like the class structure, although you have public methods in a control that takes int pointer etc...

I changed it to a IWin32Window, you happy now?

Seems that we are understanding us now Tongue Out

You got it into the right direction, but there is still a lot space for improvement... hehe Wink

Sven Groot
My name has 9 letters. Coincidence? I think not...

I just tried it in XP, and like I intended it fails gracefully and doesn't crash. You get a nice message saying thumbnails aren't supported.

It's always a bit of a gamble with something like that because I hadn't actually tested it. Just a while ago I released a program which used some customized drawing code to fix the border of the RichTextBox (the RTB control doesn't have a proper theme border), but I discovered that I had broken it if themes were disabled (or if you used something older than XP). That was not one of my greater moments. Sad