|
|
|
|
|
|
|
Author Rank :
|
|
|
Page Views :
|
16076
|
|
Downloads :
|
137
|
|
Rating :
|
Rate it
|
|
Level :
|
Beginner
|
|
|
|
|
Download
Files:
|
|
|
|
|
|
|
|
|
|
|
|
This articles describes that how to use brushes as Opacity Mask in WPF. All drawing group have Opacity property that affects the entire object evenly they also have an OpacityMask that can be used to apply custom opacity effects. This property uses the alpha channel value for the supplied Brush. The other channels of the brush content (Red, Green, or Blue) are ignored.
The most typical Brush for this purpose is an ImageBrush, which can be used for a variety of photo masking techniques such as vignettes. However, any defined Brush (such as LinearGradientBrush) can be used. All brushes require a Brush-derived object element to fill property element syntax in XAML, as shown in the XAML syntax earlier in this topic.
<Window x:Class="WpfApplication7.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="LinearGradientBrush with OpacityMask" Height="300" Width="300">
<Window.Background>
<LinearGradientBrush>
<GradientStop Offset="0" Color="Red"></GradientStop>
<GradientStop Offset="1" Color="Green"></GradientStop>
</LinearGradientBrush>
</Window.Background>
<Button Margin="40" FontSize="80">RAJ
<Button.OpacityMask>
<LinearGradientBrush EndPoint="0.1,0.1" SpreadMethod="Reflect">
<GradientStop Offset="0" Color="Gray"></GradientStop>
<GradientStop Offset="1" Color="Transparent"></GradientStop>
</LinearGradientBrush>
</Button.OpacityMask>
</Button>
</Window>
Output looks like this:
Figure 1. A Button with LinearGradientBrush applied to OpacityMask
<Window x:Class="WpfApplication7.Window2"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window2" Height="300" Width="300">
<Grid>
<Image Source="ais245a.jpg" Height="200">
<Image.OpacityMask>
<RadialGradientBrush Center="0.5,0.5">
<GradientStop Color="#00000000" Offset="1" />
<GradientStop Color="#20000000" Offset="0.8" />
<GradientStop Color="#FF000000" Offset="0" />
</RadialGradientBrush>
</Image.OpacityMask>
</Image>
</Grid>
</Window>
Output:
Figure 2. RadialGradientBrush applied to OpacityMask of an image
|
|
Comment Request!
Thank you for reading this post. Please post your feedback, question, or comments about this post
Here.
|
|
|
|
|
Login
to add your contents and source code to this article
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
C# Consulting is founded in 2002 by the founders of C# Corner. Unlike a traditional
consulting company, our consultants are well-known experts in .NET and many of them
are MVPs, authors, and trainers. We specialize in Microsoft .NET development and
utilize Agile Development and Extreme Programming practices to provide fast pace
quick turnaround results. Our software development model is a mix of Agile Development,
traditional SDLC, and Waterfall models.
|
|
Click here to learn more about C# Consulting. |
|
|
|
|
|
|
|
Introducing MaxV - one click. infinite control. Hyper-V Hosting from MaximumASP.
Finally – a virtual platform that delivers next-generation Windows Server 2008 Hyper-V virtualization technology from a managed hosting partner you can truly depend on. Visit www.maximumasp.com/max for a FREE 30 day trial. Hurry offer ends soon.
Climb aboard the MaxV platform and take advantage of High Availability, Intelligent Monitoring, Recurrent Backups, and Scalability – with no hassle or hidden fees.
As a managed hosting partner focused solely on Microsoft technologies since 2000, MaximumASP is uniquely qualified to provide the superior support that our business is built on. Unparalleled expertise with Microsoft technologies lead to working directly with Microsoft as first to offer IIS 7 and SQL 2008 betas in a hosted environment; partnering in the Go Live Program for Hyper-V; and product co-launches built on WS 2008 with Hyper-V technology.
|
Dynamic PDF
ceTE software specializes in components for dynamic PDF generation and manipulation. The DynamicPDF™ product line allows you to dynamically generate PDF documents, merge PDF documents and new content to existing PDF documents from within your applications.
|
Nevron Chart for .NET 2010.1 Now Available
The leading .NET charting control now features PDF, Flash and Silverlight export, visualization of large datasets and more. Deliver true charting functionality to your BI, Scorecard, Presentation or Scientific apps. Download evaluation now.
|
ASP.NET 4 Hosting
Get 2 Months Free of ASP.NET Hosting for Only $4.95/month! Receive FREE MS SQL and MySQL Databases Including ASP.NET 4/3.5, MVC 3.0, Silverlight 4, Windows 2008/IIS 7.0 Plus FREE IIS 7 Modules. Host UNLIMITED ASP.NET Web Sites – Click Here!
|
|
|
|
|
|
|
|
|
|
|
|
|