Hi Eric,
How would that make the image grayscale? I can still see the colors unless
the opacity is 0...
Uriel
On Thu, 10 May 2007 16:41:04 -0700, Eric Gunnerson
<[EMAIL PROTECTED]> wrote:
>Have you thought about graying it out using opacity? If you set the
opacity to about 50%, you will likely get the effect that you want. You can
control how it grays by putting a rectangle of the appropriate color
(white, black, gray) directly behind the image...
>
>Eric
>
>-----Original Message-----
>From: Discussion of advanced .NET topics. [mailto:ADVANCED-
[EMAIL PROTECTED] On Behalf Of Uriel Cohen
>Sent: Thursday, May 10, 2007 3:44 AM
>To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM
>Subject: [ADVANCED-DOTNET] Grayscale images in WPF
>
>Hi,
>
>I've been using the Image control in the definition of a XAML UserControl,
>and I realized that when I set IsEnabled to false, then the bitmap
>displayed in the Image control doesn't get grayed out as I was expecting.
>
>I've been trying to create a similar control (or one that inherits from
>Image) that I could use from XAML and bind its properties.
>The idea is that I am binding the Source property of my image instance to a
>property of a data type that I have created (the property is actually a
>string of the location in the disk of the jpg file). So I need the new
>control to be able to be binded to.
>
>I tried using a FormatConvertedBitmap instance as the ImageSource of the
>Image.Source property, and giving it a BitmapImage instance, but I couldn't
>bind the BitmapImage to the path of the image on the disk.
>I also though on creating my own BitmapEffect, which would be a better
>solution, but these are very complicated to write since you need to meddle
>with some unmanaged code and COM interfaces, so I gave up this idea.
>
>Has someone succeded in doing something similar?
>
>I would like to end up with something like a control called
>GrayeableImage...
>
>TIA
>
> Uriel
>
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