Determines the number of custom colorable items proffered by the language service.
Assembly: Microsoft.VisualStudio.TextManager.Interop (in Microsoft.VisualStudio.TextManager.Interop.dll)
The core editor calls when it is loading a language service and needs to know how many custom colorable items the language service is proffering. This count includes only the number of colors the language service actually provides. If the language service chooses to include a placeholder for index 0, that placeholder should not be included in the count returned from this method.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.