|Hi folks thanks for the input,
Searches a path for a drive letter within the range of 'A' to 'Z' and returns the corresponding drive number.
A pointer to a null-terminated string of maximum length MAX_PATH that contains the path to be searched.
Returns 0 through 25 (corresponding to 'A' through 'Z') if the path has a drive letter, or -1 otherwise.
The shlwapi.h header defines PathGetDriveNumber as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
Taken from: PathGetDriveNumberA function (shlwapi.h) - Win32 apps | Microsoft Docs[^]
does this help in any way?