나는 "Windows Explorer Thumbnails Provider API"로 검색해서 찾았음

https://learn.microsoft.com/en-us/windows/win32/shell/thumbnail-providers

Thumbnail Handlers - Win32 apps

Windows Vista makes greater use of file-specific thumbnail images than earlier versions of Windows.

learn.microsoft.com

https://learn.microsoft.com/en-us/samples/microsoft/windows-classic-samples/recipethumbnailprovider/

Explorer thumbnail provider - Code Samples

Illustrates how to create a Thumbnail provider that extends the explorer, providing thumbnails for a particular file type.

learn.microsoft.com


C++, COM 모델에 대한 사전 지식이 필요함