Desk.cpl : Background selection should only accept image (not lnk)

Using reactos-bootcd-0.4.15-dev-4914-g2220e56-x86-gcc-lin-dbg 

When you whant to add a background image and select a shortcut (.lnk) Desk.cpl does not resolve the .lnk and check target extension BUT directly add the .lnk to the list

Either .lnk should NOT be accepted OR the target should be resolved, checked, and added only if relevant.

Maybe a problem from the FileBrowser common dialog ?

Windows XPSP3 : lnk not accepted (filtered out by browse dialog)

Cause : in dll/cpl/desk/background.c ( OnBrowseButton : https://git.reactos.org/?p=reactos.git;a=blob;f=dll/cpl/desk/background.c#l609 ) it shall be checked that the extension of ofn.lpstrFileTitle is still valid in GdipGetSupportedFileExtensions

In particular wrt https://learn.microsoft.com/en-us/windows/win32/api/commdlg/ns-commdlg-openfilenamea

In the case of a shortcut, if no filter is set, GetOpenFileName and GetSaveFileName retrieve the name of the .lnk file, not its target. This behavior is the same as setting the OFN_NODEREFERENCELINKS flag in the Flags member. To retrieve a shortcut's target without filtering, use the string "All Files\0*.*\0\0". 

Or, see CORE-18955 where it seems that in 2K3 the .lnk files are not listed in the Browse for file common dialog