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unit UPlatformWindows;
interface
{$IFDEF FPC}
{$MODE Delphi}
{$ENDIF}
{$I switches.inc}
// turn off messages for platform specific symbols
{$WARN SYMBOL_PLATFORM OFF}
uses
Classes,
UPlatform;
type
TPlatformWindows = class(TPlatform)
private
function GetSpecialPath(CSIDL: integer): WideString;
public
function DirectoryFindFiles(Dir, Filter: WideString; ReturnAllSubDirs: Boolean): TDirectoryEntryArray; override;
function TerminateIfAlreadyRunning(var WndTitle: String): Boolean; override;
function GetLogPath: WideString; override;
function GetGameSharedPath: WideString; override;
function GetGameUserPath: WideString; override;
function CopyFile(const Source, Target: WideString; FailIfExists: boolean): boolean; override;
end;
implementation
uses
SysUtils,
ShlObj,
Windows,
UConfig;
type
TSearchRecW = record
Time: Integer;
Size: Integer;
Attr: Integer;
Name: WideString;
ExcludeAttr: Integer;
FindHandle: THandle;
FindData: TWin32FindDataW;
end;
function FindFirstW(const Path: WideString; Attr: Integer; var F: TSearchRecW): Integer; forward;
function FindNextW(var F: TSearchRecW): Integer; forward;
procedure FindCloseW(var F: TSearchRecW); forward;
function FindMatchingFileW(var F: TSearchRecW): Integer; forward;
function DirectoryExistsW(const Directory: widestring): Boolean; forward;
function FindFirstW(const Path: widestring; Attr: Integer; var F: TSearchRecW): Integer;
const
faSpecial = faHidden or faSysFile or faVolumeID or faDirectory;
begin
F.ExcludeAttr := not Attr and faSpecial;
{$IFDEF Delphi}
F.FindHandle := FindFirstFileW(PWideChar(Path), F.FindData);
{$ELSE}
F.FindHandle := FindFirstFileW(PWideChar(Path), @F.FindData);
{$ENDIF}
if F.FindHandle <> INVALID_HANDLE_VALUE then
begin
Result := FindMatchingFileW(F);
if Result <> 0 then FindCloseW(F);
end else
Result := GetLastError;
end;
function FindNextW(var F: TSearchRecW): Integer;
begin
{$IFDEF Delphi}
if FindNextFileW(F.FindHandle, F.FindData) then
{$ELSE}
if FindNextFileW(F.FindHandle, @F.FindData) then
{$ENDIF}
Result := FindMatchingFileW(F)
else
Result := GetLastError;
end;
procedure FindCloseW(var F: TSearchRecW);
begin
if F.FindHandle <> INVALID_HANDLE_VALUE then
begin
Windows.FindClose(F.FindHandle);
F.FindHandle := INVALID_HANDLE_VALUE;
end;
end;
function FindMatchingFileW(var F: TSearchRecW): Integer;
var
LocalFileTime: TFileTime;
begin
with F do
begin
while FindData.dwFileAttributes and ExcludeAttr <> 0 do
{$IFDEF Delphi}
if not FindNextFileW(FindHandle, FindData) then
{$ELSE}
if not FindNextFileW(FindHandle, @FindData) then
{$ENDIF}
begin
Result := GetLastError;
Exit;
end;
FileTimeToLocalFileTime(FindData.ftLastWriteTime, LocalFileTime);
FileTimeToDosDateTime(LocalFileTime, LongRec(Time).Hi, LongRec(Time).Lo);
Size := FindData.nFileSizeLow;
Attr := FindData.dwFileAttributes;
Name := FindData.cFileName;
end;
Result := 0;
end;
function DirectoryExistsW(const Directory: widestring): Boolean;
var
Code: Integer;
begin
Code := GetFileAttributesW(PWideChar(Directory));
Result := (Code <> -1) and (FILE_ATTRIBUTE_DIRECTORY and Code <> 0);
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;
function TPlatformWindows.DirectoryFindFiles(Dir, Filter: WideString; ReturnAllSubDirs: Boolean): TDirectoryEntryArray;
var
i : Integer;
SR : TSearchRecW;
Attrib : Integer;
begin
i := 0;
Filter := LowerCase(Filter);
if FindFirstW(Dir + '*', faAnyFile or faDirectory, SR) = 0 then
repeat
if (SR.Name <> '.') and (SR.Name <> '..') then
begin
Attrib := FileGetAttr(Dir + SR.name);
if ReturnAllSubDirs and ((Attrib and faDirectory) <> 0) then
begin
SetLength( Result, i + 1);
Result[i].Name := SR.name;
Result[i].IsDirectory := true;
Result[i].IsFile := false;
i := i + 1;
end
else if (Length(Filter) = 0) or (Pos( Filter, LowerCase(SR.Name)) > 0) then
begin
SetLength( Result, i + 1);
Result[i].Name := SR.Name;
Result[i].IsDirectory := false;
Result[i].IsFile := true;
i := i + 1;
end;
end;
until FindNextW(SR) <> 0;
FindCloseW(SR);
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): WideString;
var
Buffer: array [0..MAX_PATH-1] of WideChar;
begin
{$IF Defined(Delphi) or (FPC_VERSION_INT >= 2002002)} // >= 2.2.2
if (SHGetSpecialFolderPathW(0, @Buffer, CSIDL, false)) then
Result := Buffer
else
{$IFEND}
Result := '';
end;
function TPlatformWindows.GetLogPath: WideString;
begin
Result := GetExecutionDir();
end;
function TPlatformWindows.GetGameSharedPath: WideString;
begin
Result := GetExecutionDir();
end;
function TPlatformWindows.GetGameUserPath: WideString;
begin
//Result := GetSpecialPath(CSIDL_APPDATA) + PathDelim + 'UltraStarDX' + PathDelim;
Result := GetExecutionDir();
end;
function TPlatformWindows.CopyFile(const Source, Target: WideString; FailIfExists: boolean): boolean;
begin
Result := Windows.CopyFileW(PWideChar(Source), PWideChar(Target), FailIfExists);
end;
end.
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