convert.cpp

wchar_t path[FILENAME_MAX] = { 0 };
GetModuleFileName(nullptr, path, FILENAME_MAX);

// "C:\path1" "C:\"
// "C:\path1\path2" "C:\path1"
// "C:\path1\" "C:\path1"
// "\\path1\path2\path3"	"\\path1\path2"
// "\path1" "\"

// This removed the exe from get module file name
// see: https://docs.microsoft.com/en-us/windows/win32/api/pathcch/nf-pathcch-pathcchremovefilespec
PathCchRemoveFileSpec(path, FILENAME_MAX);