DwmQueryThumbnailSourceSize function (dwmapi.h)

Retrieves the source size of the Desktop Window Manager (DWM) thumbnail.

Syntax

HRESULT DwmQueryThumbnailSourceSize(
        HTHUMBNAIL hThumbnail,
  [out] PSIZE      pSize
);

hThumbnail

A handle to the thumbnail to retrieve the source window size from.

[out] pSize

A pointer to a SIZE structure that, when this function returns successfully, receives the size of the source thumbnail.

If this function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	dwmapi.h
Library	Dwmapi.lib
DLL	Dwmapi.dll