If i understand your question correctly, then it is possible.

Here is very simplified example:

using Umbraco.Core.Models;
using Umbraco.Core.PropertyEditors;

public class CustomService : ICustomService
{
    private readonly IDataTypeService _dataTypeService;

    public CustomService(IDataTypeService dataTypeService)
    {
        _dataTypeService = dataTypeService;
    }

    public ImageCropperConfiguration ImageCropperPrevalues(string dataTypeKey = "Image Primary Cropper")
    {
        IDataType dataType = _dataTypeService.GetDataType(dataTypeKey);
        return dataType.ConfigurationAs<ImageCropperConfiguration>();
    }
}