Относительный и полный пути файла
{
Question:
Could anyone point me to any function that can receive
an HTML style relative path as its input and return a full path as its
output based on the exe's current location, e.g
Input: '.... est2.dat'
Output: C:folder1 est2.dat
(assuming that the executable is running from
C:folder1folder2folder3Project1.exe)
}
{
Answer:
PathCombine() Concatenates two strings that represent properly
formed paths into one path, as well as any relative path pieces.
}
function PathCombine(lpszDest: PChar; const
lpszDir, lpszFile: PChar):
PChar; stdcall
; external
'shlwapi.dll' name 'PathCombineA';
function
PathCombineA(lpszDest: PAnsiChar; const
lpszDir, lpszFile:
PAnsiChar): PAnsiChar; stdcall
; external
'shlwapi.dll';
function
PathCombineW(lpszDest: PWideChar; const
lpszDir, lpszFile:
PWideChar): PWideChar; stdcall
; external
'shlwapi.dll';
{
Requires Windows 2000 (or Windows NT 4.0 with Internet Explorer 4.0 or later);
Requires Windows 98 (or Windows 95 with Internet Explorer 4.0 or later)
}
procedure
TForm1.FormCreate(Sender: TObject);
var
dest: string
;
BaseFile, RelativePath: String
;
begin
BaseFile := 'C:folder1folder2folder3';
RelativePath := '.... est2.dat';
SetLength(dest, MAX_PATH);
PathCombine(@dest[1], PChar(ExtractFilePath(BaseFile)), PChar(RelativePath));
SetLength(dest, StrLen(@Dest[1]));
ShowMessage(dest);
end
;
{
The ExtractRelativePath function takes a base directory but the
ExpandFilename function does the expansion based on the current
directory not a given base path.
}
RelativePath := ExtractRelativePath(ExtractFilePath(BaseFile), TargetFile);