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{* UltraStar Deluxe - Karaoke Game
*
* UltraStar Deluxe is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*}
unit UPlatformWindows;
interface
{$IFDEF FPC}
{$MODE Delphi}
{$ENDIF}
{$I switches.inc}
// turn off messages for platform specific symbols
{$WARN SYMBOL_PLATFORM OFF}
uses
Classes,
UPlatform,
UPath;
type
TPlatformWindows = class(TPlatform)
private
UseLocalDirs: boolean;
function GetSpecialPath(CSIDL: integer): IPath;
procedure DetectLocalExecution();
public
procedure Init; override;
function TerminateIfAlreadyRunning(var WndTitle: String): Boolean; override;
function GetLogPath: IPath; override;
function GetGameSharedPath: IPath; override;
function GetGameUserPath: IPath; override;
end;
implementation
uses
SysUtils,
ShlObj,
Windows,
UConfig;
procedure TPlatformWindows.Init;
begin
inherited Init();
DetectLocalExecution();
end;
//------------------------------
//Start more than One Time Prevention
//------------------------------
function TPlatformWindows.TerminateIfAlreadyRunning(var WndTitle: String): Boolean;
var
hWnd: THandle;
I: Integer;
begin
Result := false;
hWnd:= FindWindow(nil, PChar(WndTitle));
//Programm already started
if (hWnd <> 0) then
begin
I := Messagebox(0, PChar('Another Instance of Ultrastar is already running. Continue ?'), PChar(WndTitle), MB_ICONWARNING or MB_YESNO);
if (I = IDYes) then
begin
I := 1;
repeat
Inc(I);
hWnd := FindWindow(nil, PChar(WndTitle + ' Instance ' + InttoStr(I)));
until (hWnd = 0);
WndTitle := WndTitle + ' Instance ' + InttoStr(I);
end
else
Result := true;
end;
end;
(**
* Returns the path of a special folder.
*
* Some Folder IDs:
* CSIDL_APPDATA (e.g. C:\Documents and Settings\username\Application Data)
* CSIDL_LOCAL_APPDATA (e.g. C:\Documents and Settings\username\Local Settings\Application Data)
* CSIDL_PROFILE (e.g. C:\Documents and Settings\username)
* CSIDL_PERSONAL (e.g. C:\Documents and Settings\username\My Documents)
* CSIDL_MYMUSIC (e.g. C:\Documents and Settings\username\My Documents\My Music)
*)
function TPlatformWindows.GetSpecialPath(CSIDL: integer): IPath;
var
Buffer: array [0..MAX_PATH-1] of WideChar;
begin
if (SHGetSpecialFolderPathW(0, @Buffer, CSIDL, false)) then
Result := Path(Buffer)
else
Result := PATH_NONE;
end;
{**
* Detects whether the game was executed locally or globally.
* - It is local if a config.ini exists in the directory of the
* executable. In config files like config.ini or score db
* reside in the directory of the executable. This is useful
* to enable windows users to have a portable installation
* e.g. on an external hdd. This is also the default behaviour
* of usdx prior to version 1.1
* - It is global if no config.ini exists in the directory of the
* executable the config files are in a separate folder
* (e.g. %APPDATA%\ultrastardx)
* On windows resources (themes, language-files)
* reside in the directory of the executable in every case
*
* Sets UseLocalDirs to true if the game is executed locally, false otherwise.
*}
procedure TPlatformWindows.DetectLocalExecution();
var
LocalDir, ConfigIni: IPath;
OSVerInfo: TOSVersionInfo;
begin
// we just check if 'config.ini' exists in the
// directory of the executable or if windows version
// is less than Windows Vista (major version = 6).
// If so -> local execution.
LocalDir := GetExecutionDir();
ConfigIni := LocalDir.Append('config.ini');
UseLocalDirs := ((ConfigIni.IsFile and ConfigIni.Exists) and (OSVerInfo.dwMajorVersion < 6));
end;
function TPlatformWindows.GetLogPath: IPath;
begin
Result := GetExecutionDir();
end;
function TPlatformWindows.GetGameSharedPath: IPath;
begin
Result := GetExecutionDir();
end;
function TPlatformWindows.GetGameUserPath: IPath;
begin
if UseLocalDirs then
Result := GetExecutionDir()
else
Result := GetSpecialPath(CSIDL_APPDATA).Append('ultrastardx', pdAppend);
end;
end.
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