Transparent drop shadow in C# (GDI+)

Mark de Haan

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3 Jul 20073 min read

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How to create a transparent drop shadow effect for a panel control

shadowpanel.zip
- ShadowPanel
  - ShadowPanel.sln
  - ShadowPanel
    - bin
      - Debug
        
        ShadowPanel.dll
        
        ShadowPanel.pdb
      - Release
        
        ShadowPanel.dll
        
        ShadowPanel.pdb
    - Images
      - tshadowdown.png
      - tshadowdownleft.png
      - tshadowdownright.png
      - tshadowright.png
      - tshadowtopright.png
    - obj
      - Debug
        
        Refactor
        
        ShadowPanel.dll
        
        ShadowPanel.dll
        
        ShadowPanel.Images.tshadowdown.png
        
        ShadowPanel.Images.tshadowdownleft.png
        
        ShadowPanel.Images.tshadowdownright.png
        
        ShadowPanel.Images.tshadowright.png
        
        ShadowPanel.Images.tshadowtopright.png
        
        ShadowPanel.pdb
        
        TempPE
      - Release
        
        ShadowPanel.dll
        
        ShadowPanel.Images.tshadowdown.png
        
        ShadowPanel.Images.tshadowdownleft.png
        
        ShadowPanel.Images.tshadowdownright.png
        
        ShadowPanel.Images.tshadowright.png
        
        ShadowPanel.Images.tshadowtopright.png
        
        ShadowPanel.pdb
        
        TempPE
      - ShadowPanel.csproj.FileList.txt
    - Properties
      - AssemblyInfo.cs
    - ShadowPanel.cs
    - ShadowPanel.csproj
  - ShadowPanelTest
    - bin
      - Debug
        
        ShadowPanel.dll
        
        ShadowPanel.pdb
        
        ShadowPanelTest.exe
        
        ShadowPanelTest.pdb
        
        ShadowPanelTest.vshost.exe
      - Release
        
        ShadowPanel.dll
        
        ShadowPanel.pdb
        
        ShadowPanelTest.exe
        
        ShadowPanelTest.pdb
        
        ShadowPanelTest.vshost.exe
    - Form1.cs
    - Form1.Designer.cs
    - Form1.resx
    - obj
      - Debug
        
        Refactor
        
        ResolveAssemblyReference.cache
        
        ShadowPanelTest.csproj.GenerateResource.Cache
        
        ShadowPanelTest.exe
        
        ShadowPanelTest.Form1.resources
        
        ShadowPanelTest.pdb
        
        ShadowPanelTest.Properties.Resources.resources
        
        TempPE
      - Release
        
        ResolveAssemblyReference.cache
        
        ShadowPanelTest.csproj.GenerateResource.Cache
        
        ShadowPanelTest.exe
        
        ShadowPanelTest.Form1.resources
        
        ShadowPanelTest.pdb
        
        ShadowPanelTest.Properties.Resources.resources
        
        TempPE
      - ShadowPanelTest.csproj.FileList.txt
    - Program.cs
    - Properties
    - ShadowPanelTest.csproj
  - Thumbs.db
shadowpaneldemo.zip
- ShadowPanel.dll
- ShadowPanelTest.exe

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Written By

Mark de Haan

Web Developer

Netherlands

I'm a UI designer living in The Netherlands. Currently I'm using C# and Visual Studio 2005 with ASP.NET and Windows Forms.

I'm looking forward to working with WPF professionally (expression blend is just fantastic!)

Transparent drop shadow in C# (GDI+)

License

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