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-- Find installation path (using executable).
-- Copyright (C) 2002 - 2016 Tristan Gingold
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <gnu.org/licenses>.
--
-- As a special exception, if other files instantiate generics from this
-- unit, or you link this unit with other files to produce an executable,
-- this unit does not by itself cause the resulting executable to be
-- covered by the GNU General Public License. This exception does not
-- however invalidate any other reasons why the executable file might be
-- covered by the GNU Public License.
with Interfaces.C; use Interfaces.C;
with System; use System;
package body Windows_Default_Path is
subtype DWORD is Interfaces.C.Unsigned_Long;
subtype HINSTANCE is Address;
function GetModuleFileName (Inst : HINSTANCE; Buf : Address; Size : DWORD)
return DWORD;
pragma Import (Stdcall, GetModuleFileName, "GetModuleFileNameA");
function Get_Windows_Exec_Path return String
is
File : String (1 .. 256);
Size : DWORD;
P : Natural;
begin
-- Get exe file path.
Size := GetModuleFileName (Null_Address, File'Address, File'Length);
if Size = 0 or Size = File'Length then
return "{cannot find install path}\lib";
end if;
-- Remove Program file.
P := Natural (Size);
while P > 0 loop
exit when File (P) = '\';
exit when File (P) = ':' and P = 2;
P := P - 1;
end loop;
if File (P) = '\' and P > 1 then
-- Remove directory
P := P - 1;
while P > 0 loop
exit when File (P) = '\';
exit when File (P) = ':' and P = 2;
P := P - 1;
end loop;
end if;
return File (1 .. P);
end Get_Windows_Exec_Path;
end Windows_Default_Path;
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