Comments on: Zoom in and out using the Mouse wheel in Silverlight http://www.silverlightbuzz.com/2009/05/19/zoom-in-and-out-using-the-mouse-wheel-in-silverlight/ Gavin Wignall Blogs about Silverlight tutorials and examples Mon, 08 Mar 2010 08:41:47 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Mike Simon http://www.silverlightbuzz.com/2009/05/19/zoom-in-and-out-using-the-mouse-wheel-in-silverlight/comment-page-1/#comment-1179 Mike Simon Thu, 03 Sep 2009 03:02:41 +0000 http://www.silverlightbuzz.com/?p=203#comment-1179 Another bug is that it only seems to work when the ScaleX and ScaleY are >= 1 . Massive jumping occurs if your Canvas is already scaled beneath 1 the start. If I come up with a fix, I'll post here. Thanks for posting this. It's way better than what I was getting when I was trying to calculate the margin based on the scale and offset the position with that. Another bug is that it only seems to work when the ScaleX and ScaleY are >= 1 . Massive jumping occurs if your Canvas is already scaled beneath 1 the start.

If I come up with a fix, I’ll post here. Thanks for posting this. It’s way better than what I was getting when I was trying to calculate the margin based on the scale and offset the position with that.

]]> By: Drew Vance http://www.silverlightbuzz.com/2009/05/19/zoom-in-and-out-using-the-mouse-wheel-in-silverlight/comment-page-1/#comment-290 Drew Vance Thu, 16 Jul 2009 21:55:28 +0000 http://www.silverlightbuzz.com/?p=203#comment-290 There's a bug: If you are zoomed in on one point, and move your mouse to a different point to zoom, zoomArea "jumps". Does anyone know a fix for this? There’s a bug: If you are zoomed in on one point, and move your mouse to a different point to zoom, zoomArea “jumps”.

Does anyone know a fix for this?

]]> By: Gavin Wignall http://www.silverlightbuzz.com/2009/05/19/zoom-in-and-out-using-the-mouse-wheel-in-silverlight/comment-page-1/#comment-259 Gavin Wignall Thu, 09 Jul 2009 06:39:55 +0000 http://www.silverlightbuzz.com/?p=203#comment-259 Thanks Scotto that's great, I'll get the example source updated as soon as I get a chance! Thanks Scotto that’s great, I’ll get the example source updated as soon as I get a chance!

]]> By: Scott Rogers http://www.silverlightbuzz.com/2009/05/19/zoom-in-and-out-using-the-mouse-wheel-in-silverlight/comment-page-1/#comment-258 Scott Rogers Thu, 09 Jul 2009 06:08:25 +0000 http://www.silverlightbuzz.com/?p=203#comment-258 Thanks for your helpful example. As I needed to get it working in Google Chrome, I found that Google Chrome 2.0.172.33 has both the properties, "detail", which returns 0.0 and "wheelDelta" which returns a valid integer value. I modified the code snippet as below to get the example working in Google Chrome. // IE, Google Chrome and Opera if (e.GetProperty(”wheelDelta”) != null) { mouseDelta = ((double)e.GetProperty(”wheelDelta”)); } // Mozilla and Safari else if (e.GetProperty(”detail”) != null) { mouseDelta = ((double)e.GetProperty(”detail”)); } mouseDelta = Math.Sign(mouseDelta); Thanks again, Scotto Thanks for your helpful example.

As I needed to get it working in Google Chrome, I found that Google Chrome 2.0.172.33 has both the properties, “detail”, which returns 0.0 and “wheelDelta” which returns a valid integer value.

I modified the code snippet as below to get the example working in Google Chrome.

// IE, Google Chrome and Opera
if (e.GetProperty(”wheelDelta”) != null)
{
mouseDelta = ((double)e.GetProperty(”wheelDelta”));
}
// Mozilla and Safari
else if (e.GetProperty(”detail”) != null)
{
mouseDelta = ((double)e.GetProperty(”detail”));
}
mouseDelta = Math.Sign(mouseDelta);

Thanks again,
Scotto

]]> By: Links da Semana (25-29) - Gonçalo Chaves - XAML PT http://www.silverlightbuzz.com/2009/05/19/zoom-in-and-out-using-the-mouse-wheel-in-silverlight/comment-page-1/#comment-128 Links da Semana (25-29) - Gonçalo Chaves - XAML PT Fri, 29 May 2009 13:03:10 +0000 http://www.silverlightbuzz.com/?p=203#comment-128 [...] Trabalhar com Zoom em Silverlight -  Mais um bom exemplo, de como podemos trabalhar com as funções de zoom numa aplicação silverlight. Como apanhar os eventos do rato, bem como a famosa “rodinha”, para o Zoom. [...] [...] Trabalhar com Zoom em Silverlight -  Mais um bom exemplo, de como podemos trabalhar com as funções de zoom numa aplicação silverlight. Como apanhar os eventos do rato, bem como a famosa “rodinha”, para o Zoom. [...]

]]> By: Colin E. http://www.silverlightbuzz.com/2009/05/19/zoom-in-and-out-using-the-mouse-wheel-in-silverlight/comment-page-1/#comment-115 Colin E. Wed, 20 May 2009 10:18:58 +0000 http://www.silverlightbuzz.com/?p=203#comment-115 This looks good, however unfortunately when I use the mouse-wheel is not only zooms the silverlight application but also performs a vertical scroll of my browser window! (Firefox 3.0.10) Regards, Colin E. This looks good, however unfortunately when I use the mouse-wheel is not only zooms the silverlight application but also performs a vertical scroll of my browser window! (Firefox 3.0.10)

Regards, Colin E.

]]>