Parameters
- captionFormat
- The caption format.
- thumbnailViewer
- The thumbnail viewer.
- thumbnail
- The thumbnail.
Return Value
Text of thumbnail caption.
Target Platforms: .NET 10; .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5