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Resources in VSPackages

  • 아티클

Applies to: yesVisual Studio noVisual Studio for Mac

Note

This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

You can embed localized resources in native satellite UI DLLs, managed satellite DLLs, or in a managed VSPackage itself.

Some resources cannot be embedded in VSPackages. The following managed types can be embedded:

  • Strings

  • Package load keys (which are also strings)

  • Tool window icons

  • Compiled Command Table Output (CTO) files

  • CTO bitmaps

  • Command-line Help

  • About dialog box data

Resources in a managed package are selected by resource ID. An exception is the CTO file, which must be named CTMENU. The CTO file must appear in the resource table as a byte[]. All other resource items are identified by type.

You can use the PackageRegistrationAttribute attribute to indicate to Visual Studio that managed resources are available.

[PackageRegistration(UseManagedResourcesOnly = true)]
public sealed class MyPackage : Package

<PackageRegistration(UseManagedResourcesOnly:=True)>
Public NotInheritable Class MyPackage
    Inherits Package

Setting PackageRegistrationAttribute in this manner indicates that Visual Studio should ignore unmanaged satellite DLLs when it searches for resources, for example, by using LoadPackageString. If Visual Studio encounters two or more resources that have the same resource ID, it uses the first resource it finds.

Example

The following example is a managed representation of a tool window icon.

<data name="1001"
     type="System.Resources.ResXFileRef,System.Windows.Forms">
     <value>
     MyToolWinIcon.bmp;
     System.Drawing.Bitmap,
     System.Drawing,
     Version=1.0.0.0,
     Culture=neutral,
     PublicKeyToken=b03f5f7f11d50a3a
     </value>
</data>

The following example demonstrates how to embed the CTO byte array, which must be named CTMENU.

<data name="CTMENU"
     type="System.Resources.ResXFileRef,System.Windows.Forms">
     <value>
     MyPackage.cto;
     System.Byte[],
     mscorlib,
     Version=1.0.0.0,
     Culture=neutral,
     PublicKeyToken=b03f5f7f11d50a3a
     </value>
</data>

Implementation Notes

Visual Studio delays loading of VSPackages whenever possible. A consequence of embedding a CTO file in a VSPackage is that Visual Studio must load all such VSPackages in memory during Setup, which is when it builds a merged command table. Resources can be extracted from a VSPackage by examining the metadata without running code in the VSPackage. The VSPackage is not initialized at this time, so the performance loss is minimal.

When Visual Studio requests a resource from a VSPackage after Setup, that package is likely to be already loaded and initialized, so the performance loss is minimal.

See also