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Applies to: 
Visual Studio 
Visual 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
This method gets the number of type visualizers available from this service.
Syntax
HRESULT GetCustomViewerCount(
ULONG* pcelt
);
int GetCustomViewerCount(
out uint pcelt
);
Parameters
pcelt
[out] Returns the number of type visualizers available.
Return Value
If successful, returns S_OK; otherwise, returns an error code.
Remarks
- GetCustomViewerCount passes the request to this method in its support for type visualizers.