unit winceproc;

{$mode objfpc}{$H+}

interface

uses
  // Libs
  Windows,
  {$ifdef win32}
  win32compat,
  {$else}
    oleauto, aygshell,
  {$endif}
  // compatibility
  // RTL, LCL
  Classes, LMessages, LCLType, LCLProc, LazUTF8, Controls, Forms, Menus,
  WinCEExtra, GraphType, LCLMessageGlue;
  
type
  TEventType = (etNotify, etKey, etKeyPress, etMouseWheel, etMouseUpDown);

  PWindowInfo = ^TWindowInfo;
  TWindowInfo = record
    Overlay: HWND;            // overlay, transparent window on top, used by designer
    PopupMenu: TPopupMenu;
    DefWndProc: WNDPROC;
    ParentPanel: HWND;        // if non-zero, is the tabsheet window, for the pagecontrol hack
    WinControl: TWinControl;
    PWinControl: TWinControl; // control to paint for
    AWinControl: TWinControl; // control associated with (for buddy controls)
    List: TStrings;
    needParentPaint: boolean; // has a tabpage as parent, and is winxp themed
//    isTabPage: boolean;       // is window of tabpage
    isComboEdit: boolean;     // is buddy of combobox, the edit control
    isChildEdit: boolean;     // is buddy edit of a control
    isGroupBox: boolean;      // is groupbox, and does not have themed tabpage as parent
    MaxLength: dword;
    DrawItemIndex: integer;   // in case of listbox, when handling WM_DRAWITEM
    DrawItemSelected: boolean;// whether this item is selected LB_GETSEL not uptodate yet
    MouseX, MouseY: word; // noticing spurious WM_MOUSEMOVE messages
    case integer of
      0: (spinValue: Double);
      1: (
        TrackValid: Boolean; // Set when we have a valid trackpos
        TrackPos: Integer    // keeps the thumb position while tracking
      );
  end;

  TWinCEVersion = (wince_1, wince_2, wince_3, wince_4,
   wince_5, wince_6, wince_6_1, wince_6_5, wince_7,
   wince_other);

function WM_To_String(WM_Message: Integer): string;
function WindowPosFlagsToString(Flags: UINT): string;
procedure AssertEx(const Message: String; const PassErr: Boolean;
  const Severity: Byte);
procedure AssertEx(const PassErr: Boolean; const Message: String);
procedure AssertEx(const Message: String);
function ObjectToHWND(Const AObject: TObject): HWND;

function BytesPerLine(nWidth, nBitsPerPixel: Integer): PtrUInt;
function CreateDIBSectionFromDescription(ADC: HDC; const ADesc: TRawImageDescription; out ABitsPtr: Pointer): HBITMAP;
procedure FillRawImageDescriptionColors(var ADesc: TRawImageDescription);
procedure FillRawImageDescription(const ABitmapInfo: Windows.TBitmap; out ADesc: TRawImageDescription);

function GetBitmapBytes(ABitmap: HBITMAP; const ARect: TRect; ALineEnd: TRawImageLineEnd; var AData: Pointer; var ADataSize: PtrUInt): Boolean;
function IsAlphaBitmap(ABitmap: HBITMAP): Boolean;
function IsAlphaDC(ADC: HDC): Boolean;

function GetLastErrorText(AErrorCode: Cardinal): WideString;

function LCLControlSizeNeedsUpdate(Sender: TWinControl;
  SendSizeMsgOnDiff: boolean): boolean;

function GetLCLClientBoundsOffset(Sender: TObject; var ORect: TRect): boolean;
function GetLCLClientBoundsOffset(Handle: HWnd; var Rect: TRect): boolean;
procedure LCLBoundsToWin32Bounds(Sender: TObject; var Left, Top: Integer);
procedure LCLFormSizeToWin32Size(Form: TCustomForm; var AWidth, AHeight: Integer);
procedure GetWin32ControlPos(Window, Parent: HWND; var Left, Top: integer);

procedure UpdateWindowStyle(Handle: HWnd; Style: integer; StyleMask: integer);
function BorderStyleToWinAPIFlags(Style: TFormBorderStyle): DWORD;
function BorderStyleToWinAPIFlagsEx(AForm: TCustomForm; Style: TFormBorderStyle): DWORD;

function GetFileVersion(FileName: string): dword;
function AllocWindowInfo(Window: HWND): PWindowInfo;
function DisposeWindowInfo(Window: HWND): boolean;
function GetWindowInfo(Window: HWND): PWindowInfo;
procedure AddToChangedMenus(Window: HWnd);
procedure RedrawMenus;
function MeasureText(const AWinControl: TWinControl; Text: string; var Width, Height: integer): boolean;
function GetControlText(AHandle: HWND): string;

{ String functions that may be moved to the RTL in the future }
procedure WideStrCopy(Dest, Src: PWideChar);
function WideStrLCopy(dest, source: PWideChar; maxlen: SizeInt): PWideChar;
function WideStrCmp(W1, W2: PWideChar): Integer;

{ Automatic detection of platform }
function GetWinCEPlatform: TApplicationType;
function GetWinCEVersion: TWinCEVersion;
function IsHiResMode: Boolean;

var
  DefaultWindowInfo: TWindowInfo;
  WindowInfoAtom: ATOM;
  OverwriteCheck: Integer = 0;
  ChangedMenus: TList; // list of HWNDs which menus needs to be redrawn


implementation

uses
  SysUtils, LCLStrConsts, Dialogs, StdCtrls, ExtCtrls, ComCtrls,
  WinCEInt,
  LCLIntf; //remove this unit when GetWindowSize is moved to TWSWinControl

{------------------------------------------------------------------------------
  Function: WM_To_String
  Params: WM_Message - a WinDows message
  Returns: A WinDows-message name

  Converts a winDows message identIfier to a string
 ------------------------------------------------------------------------------}
function WM_To_String(WM_Message: Integer): string;
Begin
 Case WM_Message of
  $0000: Result := 'WM_NULL';
  $0001: Result := 'WM_CREATE';
  $0002: Result := 'WM_DESTROY';
  $0003: Result := 'WM_MOVE';
  $0005: Result := 'WM_SIZE';
  $0006: Result := 'WM_ACTIVATE';
  $0007: Result := 'WM_SETFOCUS';
  $0008: Result := 'WM_KILLFOCUS';
  $000A: Result := 'WM_ENABLE';
  $000B: Result := 'WM_SETREDRAW';
  $000C: Result := 'WM_SETTEXT';
  $000D: Result := 'WM_GETTEXT';
  $000E: Result := 'WM_GETTEXTLENGTH';
  $000F: Result := 'WM_PAINT';
  $0010: Result := 'WM_CLOSE';
  $0011: Result := 'WM_QUERYENDSESSION';
  $0012: Result := 'WM_QUIT';
  $0013: Result := 'WM_QUERYOPEN';
  $0014: Result := 'WM_ERASEBKGND';
  $0015: Result := 'WM_SYSCOLORCHANGE';
  $0016: Result := 'WM_EndSESSION';
  $0017: Result := 'WM_SYSTEMERROR';
  $0018: Result := 'WM_SHOWWINDOW';
  $0019: Result := 'WM_CTLCOLOR';
  $001A: Result := 'WM_WININICHANGE or WM_SETTINGCHANGE';
  $001B: Result := 'WM_DEVMODECHANGE';
  $001C: Result := 'WM_ACTIVATEAPP';
  $001D: Result := 'WM_FONTCHANGE';
  $001E: Result := 'WM_TIMECHANGE';
  $001F: Result := 'WM_CANCELMODE';
  $0020: Result := 'WM_SETCURSOR';
  $0021: Result := 'WM_MOUSEACTIVATE';
  $0022: Result := 'WM_CHILDACTIVATE';
  $0023: Result := 'WM_QUEUESYNC';
  $0024: Result := 'WM_GETMINMAXINFO';
  $0026: Result := 'WM_PAINTICON';
  $0027: Result := 'WM_ICONERASEBKGND';
  $0028: Result := 'WM_NEXTDLGCTL';
  $002A: Result := 'WM_SPOOLERSTATUS';
  $002B: Result := 'WM_DRAWITEM';
  $002C: Result := 'WM_MEASUREITEM';
  $002D: Result := 'WM_DELETEITEM';
  $002E: Result := 'WM_VKEYTOITEM';
  $002F: Result := 'WM_CHARTOITEM';
  $0030: Result := 'WM_SETFONT';
  $0031: Result := 'WM_GETFONT';
  $0032: Result := 'WM_SETHOTKEY';
  $0033: Result := 'WM_GETHOTKEY';
  $0037: Result := 'WM_QUERYDRAGICON';
  $0039: Result := 'WM_COMPAREITEM';
  $003D: Result := 'WM_GETOBJECT';
  $0041: Result := 'WM_COMPACTING';
  $0044: Result := 'WM_COMMNOTIFY { obsolete in Win32}';
  $0046: Result := 'WM_WINDOWPOSCHANGING';
  $0047: Result := 'WM_WINDOWPOSCHANGED';
  $0048: Result := 'WM_POWER';
  $004A: Result := 'WM_COPYDATA';
  $004B: Result := 'WM_CANCELJOURNAL';
  $004E: Result := 'WM_NOTIFY';
  $0050: Result := 'WM_INPUTLANGCHANGEREQUEST';
  $0051: Result := 'WM_INPUTLANGCHANGE';
  $0052: Result := 'WM_TCARD';
  $0053: Result := 'WM_HELP';
  $0054: Result := 'WM_USERCHANGED';
  $0055: Result := 'WM_NOTIFYFORMAT';
  $007B: Result := 'WM_CONTEXTMENU';
  $007C: Result := 'WM_STYLECHANGING';
  $007D: Result := 'WM_STYLECHANGED';
  $007E: Result := 'WM_DISPLAYCHANGE';
  $007F: Result := 'WM_GETICON';
  $0080: Result := 'WM_SETICON';
  $0081: Result := 'WM_NCCREATE';
  $0082: Result := 'WM_NCDESTROY';
  $0083: Result := 'WM_NCCALCSIZE';
  $0084: Result := 'WM_NCHITTEST';
  $0085: Result := 'WM_NCPAINT';
  $0086: Result := 'WM_NCACTIVATE';
  $0087: Result := 'WM_GETDLGCODE';
  $00A0: Result := 'WM_NCMOUSEMOVE';
  $00A1: Result := 'WM_NCLBUTTONDOWN';
  $00A2: Result := 'WM_NCLBUTTONUP';
  $00A3: Result := 'WM_NCLBUTTONDBLCLK';
  $00A4: Result := 'WM_NCRBUTTONDOWN';
  $00A5: Result := 'WM_NCRBUTTONUP';
  $00A6: Result := 'WM_NCRBUTTONDBLCLK';
  $00A7: Result := 'WM_NCMBUTTONDOWN';
  $00A8: Result := 'WM_NCMBUTTONUP';
  $00A9: Result := 'WM_NCMBUTTONDBLCLK';
  $0100: Result := 'WM_KEYFIRST or WM_KEYDOWN';
  $0101: Result := 'WM_KEYUP';
  $0102: Result := 'WM_CHAR';
  $0103: Result := 'WM_DEADCHAR';
  $0104: Result := 'WM_SYSKEYDOWN';
  $0105: Result := 'WM_SYSKEYUP';
  $0106: Result := 'WM_SYSCHAR';
  $0107: Result := 'WM_SYSDEADCHAR';
  $0108: Result := 'WM_KEYLAST';
  $010D: Result := 'WM_IME_STARTCOMPOSITION';
  $010E: Result := 'WM_IME_ENDCOMPOSITION';
  $010F: Result := 'WM_IME_COMPOSITION or WM_IME_KEYLAST';
  $0110: Result := 'WM_INITDIALOG';
  $0111: Result := 'WM_COMMAND';
  $0112: Result := 'WM_SYSCOMMAND';
  $0113: Result := 'WM_TIMER';
  $0114: Result := 'WM_HSCROLL';
  $0115: Result := 'WM_VSCROLL';
  $0116: Result := 'WM_INITMENU';
  $0117: Result := 'WM_INITMENUPOPUP';
  $011F: Result := 'WM_MENUSELECT';
  $0120: Result := 'WM_MENUCHAR';
  $0121: Result := 'WM_ENTERIDLE';
  $0122: Result := 'WM_MENURBUTTONUP';
  $0123: Result := 'WM_MENUDRAG';
  $0124: Result := 'WM_MENUGETOBJECT';
  $0125: Result := 'WM_UNINITMENUPOPUP';
  $0126: Result := 'WM_MENUCOMMAND';
  $0132: Result := 'WM_CTLCOLORMSGBOX';
  $0133: Result := 'WM_CTLCOLOREDIT';
  $0134: Result := 'WM_CTLCOLORLISTBOX';
  $0135: Result := 'WM_CTLCOLORBTN';
  $0136: Result := 'WM_CTLCOLORDLG';
  $0137: Result := 'WM_CTLCOLORSCROLLBAR';
  $0138: Result := 'WM_CTLCOLORSTATIC';
  $0200: Result := 'WM_MOUSEFIRST or WM_MOUSEMOVE';
  $0201: Result := 'WM_LBUTTONDOWN';
  $0202: Result := 'WM_LBUTTONUP';
  $0203: Result := 'WM_LBUTTONDBLCLK';
  $0204: Result := 'WM_RBUTTONDOWN';
  $0205: Result := 'WM_RBUTTONUP';
  $0206: Result := 'WM_RBUTTONDBLCLK';
  $0207: Result := 'WM_MBUTTONDOWN';
  $0208: Result := 'WM_MBUTTONUP';
  $0209: Result := 'WM_MBUTTONDBLCLK';
  $020A: Result := 'WM_MOUSEWHEEL or WM_MOUSELAST';
  $0210: Result := 'WM_PARENTNOTIFY';
  $0211: Result := 'WM_ENTERMENULOOP';
  $0212: Result := 'WM_EXITMENULOOP';
  $0213: Result := 'WM_NEXTMENU';
  $0214: Result := 'WM_SIZING';
  $0215: Result := 'WM_CAPTURECHANGED';
  $0216: Result := 'WM_MOVING';
  $0218: Result := 'WM_POWERBROADCAST';
  $0219: Result := 'WM_DEVICECHANGE';
  $0220: Result := 'WM_MDICREATE';
  $0221: Result := 'WM_MDIDESTROY';
  $0222: Result := 'WM_MDIACTIVATE';
  $0223: Result := 'WM_MDIRESTORE';
  $0224: Result := 'WM_MDINEXT';
  $0225: Result := 'WM_MDIMAXIMIZE';
  $0226: Result := 'WM_MDITILE';
  $0227: Result := 'WM_MDICASCADE';
  $0228: Result := 'WM_MDIICONARRANGE';
  $0229: Result := 'WM_MDIGETACTIVE';
  $0230: Result := 'WM_MDISETMENU';
  $0231: Result := 'WM_ENTERSIZEMOVE';
  $0232: Result := 'WM_EXITSIZEMOVE';
  $0233: Result := 'WM_DROPFILES';
  $0234: Result := 'WM_MDIREFRESHMENU';
  $0281: Result := 'WM_IME_SETCONTEXT';
  $0282: Result := 'WM_IME_NOTIFY';
  $0283: Result := 'WM_IME_CONTROL';
  $0284: Result := 'WM_IME_COMPOSITIONFULL';
  $0285: Result := 'WM_IME_SELECT';
  $0286: Result := 'WM_IME_CHAR';
  $0288: Result := 'WM_IME_REQUEST';
  $0290: Result := 'WM_IME_KEYDOWN';
  $0291: Result := 'WM_IME_KEYUP';
  $02A1: Result := 'WM_MOUSEHOVER';
  $02A3: Result := 'WM_MOUSELEAVE';
  $0300: Result := 'WM_CUT';
  $0301: Result := 'WM_COPY';
  $0302: Result := 'WM_PASTE';
  $0303: Result := 'WM_CLEAR';
  $0304: Result := 'WM_UNDO';
  $0305: Result := 'WM_RENDERFORMAT';
  $0306: Result := 'WM_RENDERALLFORMATS';
  $0307: Result := 'WM_DESTROYCLIPBOARD';
  $0308: Result := 'WM_DRAWCLIPBOARD';
  $0309: Result := 'WM_PAINTCLIPBOARD';
  $030A: Result := 'WM_VSCROLLCLIPBOARD';
  $030B: Result := 'WM_SIZECLIPBOARD';
  $030C: Result := 'WM_ASKCBFORMATNAME';
  $030D: Result := 'WM_CHANGECBCHAIN';
  $030E: Result := 'WM_HSCROLLCLIPBOARD';
  $030F: Result := 'WM_QUERYNEWPALETTE';
  $0310: Result := 'WM_PALETTEISCHANGING';
  $0311: Result := 'WM_PALETTECHANGED';
  $0312: Result := 'WM_HOTKEY';
  $0317: Result := 'WM_PRINT';
  $0318: Result := 'WM_PRINTCLIENT';
  $0358: Result := 'WM_HANDHELDFIRST';
  $035F: Result := 'WM_HANDHELDLAST';
  $0380: Result := 'WM_PENWINFIRST';
  $038F: Result := 'WM_PENWINLAST';
  $0390: Result := 'WM_COALESCE_FIRST';
  $039F: Result := 'WM_COALESCE_LAST';
  $03E0: Result := 'WM_DDE_FIRST or WM_DDE_INITIATE';
  $03E1: Result := 'WM_DDE_TERMINATE';
  $03E2: Result := 'WM_DDE_ADVISE';
  $03E3: Result := 'WM_DDE_UNADVISE';
  $03E4: Result := 'WM_DDE_ACK';
  $03E5: Result := 'WM_DDE_DATA';
  $03E6: Result := 'WM_DDE_REQUEST';
  $03E7: Result := 'WM_DDE_POKE';
  $03E8: Result := 'WM_DDE_EXECUTE or WM_DDE_LAST';
  $0400: Result := 'WM_USER';
  $8000: Result := 'WM_APP';
  Else
    Result := 'Unknown(' + IntToStr(WM_Message) + ')';
  End; {Case}
End;

function WindowPosFlagsToString(Flags: UINT): string;
var
  FlagsStr: string;
begin
  FlagsStr := '';
  if (Flags and SWP_DRAWFRAME) <> 0 then
    FlagsStr := FlagsStr + '|SWP_DRAWFRAME';
  if (Flags and SWP_HIDEWINDOW) <> 0 then
    FlagsStr := FlagsStr + '|SWP_HIDEWINDOW';
  if (Flags and SWP_NOACTIVATE) <> 0 then
    FlagsStr := FlagsStr + '|SWP_NOACTIVATE';
  if (Flags and SWP_NOCOPYBITS) <> 0 then
    FlagsStr := FlagsStr + '|SWP_NOCOPYBITS';
  if (Flags and SWP_NOMOVE) <> 0 then
    FlagsStr := FlagsStr + '|SWP_NOMOVE';
  if (Flags and SWP_NOOWNERZORDER) <> 0 then
    FlagsStr := FlagsStr + '|SWP_NOOWNERZORDER';
  if (Flags and SWP_NOREDRAW) <> 0 then
    FlagsStr := FlagsStr + '|SWP_NOREDRAW';
  if (Flags and SWP_NOSENDCHANGING) <> 0 then
    FlagsStr := FlagsStr + '|SWP_NOSENDCHANGING';
  if (Flags and SWP_NOSIZE) <> 0 then
    FlagsStr := FlagsStr + '|SWP_NOSIZE';
  if (Flags and SWP_NOZORDER) <> 0 then
    FlagsStr := FlagsStr + '|SWP_NOZORDER';
  if (Flags and SWP_SHOWWINDOW) <> 0 then
    FlagsStr := FlagsStr + '|SWP_SHOWWINDOW';
  if Length(FlagsStr) > 0 then
    FlagsStr := Copy(FlagsStr, 2, Length(FlagsStr)-1);
  Result := FlagsStr;
end;

{------------------------------------------------------------------------------
  Function: AssertEx
  Params: Message  - Message sent
          PassErr  - Pass error to a catching procedure (default: False)
          Severity - How severe is the error on a scale from 0 to 3
                     (default: 0)
  Returns: Nothing

  An expanded, better version of Assert
 ------------------------------------------------------------------------------}
procedure AssertEx(Const Message: String; Const PassErr: Boolean; Const Severity: Byte);
Begin
  Case Severity Of
    0:
    Begin
      Assert(PassErr, Message);
    End;
    1:
    Begin
      Assert(PassErr, Format('Trace:%S', [Message]));
    End;
    2:
    Begin
      Case IsConsole Of
        True:
        Begin
          DebugLn(rsWin32Warning, Message);
        End;
        False:
        Begin
          MessageBox(0, PChar(Message), PChar(rsWin32Warning), MB_OK);
        End;
      End;
    End;
    3:
    Begin
      Case IsConsole Of
        True:
        Begin
          DebugLn(rsWin32Error, Message);
        End;
        False:
        Begin
          MessageBox(0, PChar(Message), Nil, MB_OK);
        End;
      End;
    End;
  End;
End;

procedure AssertEx(Const PassErr: Boolean; Const Message: String);
Begin
  AssertEx(Message, PassErr, 0);
End;

procedure AssertEx(Const Message: String);
Begin
  AssertEx(Message, False, 0);
End;

{------------------------------------------------------------------------------
  Procedure: GetWin32KeyInfo
  Params:  Event      - Requested info
           KeyCode    - the ASCII key code of the eventkey
           VirtualKey - the virtual key code of the eventkey
           SysKey     - True If the key is a syskey
           ExtEnded   - True If the key is an extended key
           Toggle     - True If the key is a toggle key and its value is on
  Returns: Nothing

  GetWin32KeyInfo returns information about the given key event
 ------------------------------------------------------------------------------}
{
procedure GetWin32KeyInfo(const Event: Integer; var KeyCode, VirtualKey: Integer; var SysKey, Extended, Toggle: Boolean);
Const
  MVK_UNIFY_SIDES = 1;
Begin
  //DebugLn('TRACE:Using function GetWin32KeyInfo which isn''t implemented yet');
  KeyCode := Word(Event);
  VirtualKey := MapVirtualKey(KeyCode, MVK_UNIFY_SIDES);
  SysKey := (VirtualKey = VK_SHIFT) Or (VirtualKey = VK_CONTROL) Or (VirtualKey = VK_MENU);
  ExtEnded := (SysKey) Or (VirtualKey = VK_INSERT) Or (VirtualKey = VK_HOME) Or (VirtualKey = VK_LEFT) Or (VirtualKey = VK_UP) Or (VirtualKey = VK_RIGHT) Or (VirtualKey = VK_DOWN) Or (VirtualKey = VK_PRIOR) Or (VirtualKey = VK_NEXT) Or (VirtualKey = VK_END) Or (VirtualKey = VK_DIVIDE);
  Toggle := Lo(GetKeyState(VirtualKey)) = 1;
End;
}

{------------------------------------------------------------------------------
  Function: ObjectToHWND
  Params: AObject - An LCL Object
  Returns: The Window handle of the given object

  Returns the Window handle of the given object, 0 if no object available
 ------------------------------------------------------------------------------}
function ObjectToHWND(Const AObject: TObject): HWND;
Var
  Handle: HWND;
Begin
  Handle:=0;
  If not assigned(AObject) Then
  Begin
    Assert (False, 'TRACE:[ObjectToHWND] Object not assigned');
  End
  Else If (AObject Is TWinControl) Then
  Begin
    If TWinControl(AObject).HandleAllocated Then
      Handle := TWinControl(AObject).Handle
  End
  Else If (AObject Is TMenuItem) Then
  Begin
    If TMenuItem(AObject).HandleAllocated Then
      Handle := TMenuItem(AObject).Handle
  End
  Else If (AObject Is TMenu) Then
  Begin
    If TMenu(AObject).HandleAllocated Then
      Handle := TMenu(AObject).Items.Handle
  End
//  Else If (AObject Is TCommonDialog) Then
//  Begin
//    {If TCommonDialog(AObject).HandleAllocated Then }
//    Handle := TCommonDialog(AObject).Handle
//  End
  Else
  Begin
    //DebugLn(Format('Trace:[ObjectToHWND] Message received With unhandled class-type <%s>', [AObject.ClassName]));
  End;
  Result := Handle;
  If Handle = 0 Then
    Assert (False, 'Trace:[ObjectToHWND]****** Warning: handle = 0 *******');
end;

function BytesPerLine(nWidth, nBitsPerPixel: Integer): PtrUInt;
begin
  Result := ((nWidth * nBitsPerPixel + 31) and (not 31) ) div 8;
end;

procedure FillRawImageDescriptionColors(var ADesc: TRawImageDescription);
begin
  case ADesc.BitsPerPixel of
    1,4,8:
      begin
        // palette mode, no offsets
        ADesc.Format := ricfGray;
        ADesc.RedPrec := ADesc.BitsPerPixel;
        ADesc.GreenPrec := 0;
        ADesc.BluePrec := 0;
        ADesc.RedShift := 0;
        ADesc.GreenShift := 0;
        ADesc.BlueShift := 0;
      end;
    16:
      begin
        // 5-6-5 mode
        //roozbeh all changed from 5-5-5 to 5-6-5
        ADesc.RedPrec := 5;
        ADesc.GreenPrec := 6;
        ADesc.BluePrec := 5;
        ADesc.RedShift := 11;
        ADesc.GreenShift := 5;
        ADesc.BlueShift := 0;
        ADesc.Depth := 16;
      end;
    24:
      begin
        // 8-8-8 mode
        ADesc.RedPrec := 8;
        ADesc.GreenPrec := 8;
        ADesc.BluePrec := 8;
        ADesc.RedShift := 16;
        ADesc.GreenShift := 8;
        ADesc.BlueShift := 0;
      end;
  else    //  32:
    // 8-8-8-8 mode, high byte can be native alpha or custom 1bit maskalpha
    ADesc.AlphaPrec := 8;
    ADesc.RedPrec := 8;
    ADesc.GreenPrec := 8;
    ADesc.BluePrec := 8;
    ADesc.AlphaShift := 24;
    ADesc.RedShift := 16;
    ADesc.GreenShift := 8;
    ADesc.BlueShift := 0;
    ADesc.Depth := 32;
  end;
end;


procedure FillRawImageDescription(const ABitmapInfo: Windows.TBitmap; out ADesc: TRawImageDescription);
begin
  ADesc.Init;
  ADesc.Format := ricfRGBA;
  ADesc.Depth := ABitmapInfo.bmBitsPixel;             // used bits per pixel
  ADesc.Width := ABitmapInfo.bmWidth;
  ADesc.Height := ABitmapInfo.bmHeight;
  ADesc.BitOrder := riboReversedBits;
  ADesc.ByteOrder := riboLSBFirst;
  ADesc.LineOrder := riloTopToBottom;
  ADesc.BitsPerPixel := ABitmapInfo.bmBitsPixel;      // bits per pixel. can be greater than Depth.
  ADesc.LineEnd := rileDWordBoundary;

  if ABitmapInfo.bmBitsPixel <= 8
  then begin
    // each pixel is an index in the palette
    // TODO, ColorCount
    ADesc.PaletteColorCount := 0;
  end
  else ADesc.PaletteColorCount := 0;

  FillRawImageDescriptionColors(ADesc);
  
  ADesc.MaskBitsPerPixel := 1;
  ADesc.MaskShift := 0;
  ADesc.MaskLineEnd := rileWordBoundary; // CreateBitmap requires word boundary
  ADesc.MaskBitOrder := riboReversedBits;
end;

function CreateDIBSectionFromDescription(ADC: HDC; const ADesc: TRawImageDescription; out ABitsPtr: Pointer): HBITMAP;
  function GetMask(APrec, AShift: Byte): Cardinal;
  begin
    Result := ($FFFFFFFF shr (32-APrec)) shl AShift;
  end;

var
  Info: record
    Header: Windows.TBitmapInfoHeader;
    Colors: array[0..3] of Cardinal; // reserve extra color for colormasks
  end;
begin
  FillChar(Info, sizeof(Info), 0);
  Info.Header.biSize := sizeof(Windows.TBitmapInfoHeader);
  Info.Header.biWidth := ADesc.Width;
  Info.Header.biHeight := -ADesc.Height;
  Info.Header.biPlanes := 1;
  Info.Header.biBitCount := ADesc.BitsPerPixel;
  // TODO: palette support
  Info.Header.biClrUsed := 0;
  Info.Header.biClrImportant := 0;
  Info.Header.biSizeImage := BytesPerLine(Info.Header.biWidth, Info.Header.biBitCount) * ADesc.Height;
  // CE only supports bitfields
  if ADesc.BitsPerPixel > 8
  then Info.Header.biCompression := BI_BITFIELDS
  else Info.Header.biCompression := BI_RGB;

  if ADesc.BitsPerPixel = 1
  then begin
    // mono bitmap: first color is black, second is white
    Info.Colors[1] := $FFFFFFFF;
  end
  else begin
    // when 24bpp, CE only supports B8G8R8 encoding
    // TODO: check the description
    Info.Colors[0] := GetMask(ADesc.RedPrec, ADesc.RedShift);
    Info.Colors[1] := GetMask(ADesc.GreenPrec, ADesc.GreenShift);
    Info.Colors[2] := GetMask(ADesc.BluePrec, ADesc.BlueShift);
  end;

  // Use createDIBSection, since only devicedepth bitmaps can be selected into a DC
  // when they are created with createDIBitmap
  Result := Windows.CreateDIBSection(ADC, Windows.PBitmapInfo(@Info)^, DIB_RGB_COLORS, ABitsPtr, 0, 0);

  //DbgDumpBitmap(Result, 'CreateDIBSectionFromDescription - Image');
end;

function CreateDIBSectionFromDDB(ASource: HBitmap; out ABitsPtr: Pointer): HBitmap;
var
  ADC, SrcDC, DstDC: HDC;
  ADesc: TRawImageDescription;
  SrcOldBm, DstOldBm: HBitmap;
begin
  Result := 0;

  // get source bitmap description
  if not RawImage_DescriptionFromBitmap(ASource, ADesc) then
    Exit;

  // create apropriate dib section
  ADC := GetDC(0);
  Result := CreateDIBSectionFromDescription(ADC, ADesc, ABitsPtr);
  ReleaseDC(0, ADC);

  if Result = 0 then
    Exit;

  // copy source bitmap into destination
  SrcDC := CreateCompatibleDC(0);
  SrcOldBm := SelectObject(SrcDC, ASource);
  DstDC := CreateCompatibleDC(0);
  DstOldBm := SelectObject(DstDC, Result);
  Windows.BitBlt(DstDC, 0, 0, ADesc.Width, ADesc.Height, SrcDC, 0, 0, SRCCOPY);
  SelectObject(SrcDC, SrcOldBm);
  SelectObject(DstDC, DstOldBm);
  DeleteDC(SrcDC);
  DeleteDC(DstDC);
end;

function GetBitmapBytes(ABitmap: HBITMAP; const ARect: TRect; ALineEnd: TRawImageLineEnd; var AData: Pointer; var ADataSize: PtrUInt): Boolean;
var
  Section: Windows.TDIBSection;
  DIBCopy: HBitmap;
  DIBData: Pointer;
begin
  Result := False;
  // first try if the bitmap is created as section
  if (Windows.GetObject(ABitmap, SizeOf(Section), @Section) > 0) and (Section.dsBm.bmBits <> nil)
  then begin
    with Section.dsBm do
      Result := CopyImageData(bmWidth, bmHeight, bmWidthBytes, bmBitsPixel, bmBits, ARect, riloTopToBottom, riloTopToBottom, ALineEnd, AData, ADataSize);
    Exit;
  end;
  
  // bitmap is not a section, retrieve only bitmap
  if Windows.GetObject(ABitmap, SizeOf(Section.dsBm), @Section) = 0
  then Exit;

  DIBCopy := CreateDIBSectionFromDDB(ABitmap, DIBData);
  if DIBCopy = 0 then
    Exit;
  if (Windows.GetObject(DIBCopy, SizeOf(Section), @Section) > 0) and (Section.dsBm.bmBits <> nil)
  then begin
    with Section.dsBm do
      Result := CopyImageData(bmWidth, bmHeight, bmWidthBytes, bmBitsPixel, bmBits, ARect, riloTopToBottom, riloTopToBottom, ALineEnd, AData, ADataSize);
  end;

  DeleteObject(DIBCopy);

  Result := True;
end;

function IsAlphaBitmap(ABitmap: HBITMAP): Boolean;
var
  Info: Windows.BITMAP;
begin
  FillChar(Info, SizeOf(Info), 0);
  Result := (GetObject(ABitmap, SizeOf(Info), @Info) <> 0)
        and (Info.bmBitsPixel = 32);
end;

function IsAlphaDC(ADC: HDC): Boolean;
begin
  Result := (GetObjectType(ADC) = OBJ_MEMDC)
        and IsAlphaBitmap(GetCurrentObject(ADC, OBJ_BITMAP));
end;

function GetLastErrorText(AErrorCode: Cardinal): WideString;
var
  r: cardinal;
  tmp: PWideChar;
begin
  tmp := nil;
  r := Windows.FormatMessage(
    FORMAT_MESSAGE_ALLOCATE_BUFFER or FORMAT_MESSAGE_FROM_SYSTEM or FORMAT_MESSAGE_ARGUMENT_ARRAY,
    nil, AErrorCode, LANG_NEUTRAL, @tmp, 0, nil);

  if r = 0 then Exit('');

  Result := tmp;
  SetLength(Result, Length(Result)-2);

  if tmp <> nil
  then LocalFree(HLOCAL(tmp));
end;

(***********************************************************************
  Widget member Functions
************************************************************************)

{-------------------------------------------------------------------------------
  function LCLBoundsNeedsUpdate(Sender: TWinControl;
    SendSizeMsgOnDiff: boolean): boolean;

  Returns true if LCL bounds and win32 bounds differ for the control.
-------------------------------------------------------------------------------}
function LCLControlSizeNeedsUpdate(Sender: TWinControl;
  SendSizeMsgOnDiff: boolean): boolean;
var
  Window:HWND;
  LMessage: TLMSize;
  IntfWidth, IntfHeight: integer;
begin
  Result:=false;
  Window:= Sender.Handle;
  LCLIntf.GetWindowSize(Window, IntfWidth, IntfHeight);
  if (Sender.Width = IntfWidth)
  and (Sender.Height = IntfHeight)
  and (not Sender.ClientRectNeedsInterfaceUpdate) then
    exit;
  Result:=true;
  if SendSizeMsgOnDiff then
  begin
    //writeln('LCLBoundsNeedsUpdate B ',TheWinControl.Name,':',TheWinControl.ClassName,' Sending WM_SIZE');
    Sender.InvalidateClientRectCache(true);
    // send message directly to LCL, some controls not subclassed -> message
    // never reaches LCL
    with LMessage do
    begin
      Msg := LM_SIZE;
      SizeType := SIZE_RESTORED or Size_SourceIsInterface;
      Width := IntfWidth;
      Height := IntfHeight;
    end;
    DeliverMessage(Sender, LMessage);
  end;
end;

{-------------------------------------------------------------------------------
  function GetLCLClientOriginOffset(Sender: TObject;
    var LeftOffset, TopOffset: integer): boolean;

  Returns the difference between the client origin of a win32 handle
  and the definition of the LCL counterpart.
  For example:
    TGroupBox's client area is the area inside the groupbox frame.
    Hence, the LeftOffset is the frame width and the TopOffset is the caption
    height.
-------------------------------------------------------------------------------}
function GetLCLClientBoundsOffset(Sender: TObject; var ORect: TRect): boolean;
var
  TM: TextMetric;
  DC: HDC;
  Handle: HWND;
  TheWinControl: TWinControl absolute Sender;
  ARect: TRect;
begin
  Result:=false;
  if (Sender = nil) or (not (Sender is TWinControl)) then exit;
  if not TheWinControl.HandleAllocated then exit;
  Handle := TheWinControl.Handle;
  FillChar(ORect, SizeOf(ORect), 0);
  if TheWinControl is TScrollingWinControl then
    with TScrollingWinControl(TheWinControl) do
    begin
      if HorzScrollBar <> nil then
      begin
        // left and right bounds are shifted by scroll position
        ORect.Left := -HorzScrollBar.Position;
        ORect.Right := -HorzScrollBar.Position;
      end;
      if VertScrollBar <> nil then
      begin
        // top and bottom bounds are shifted by scroll position
        ORect.Top := -VertScrollBar.Position;
        ORect.Bottom := -VertScrollBar.Position;
      end;
    end;
  if (TheWinControl is TCustomGroupBox) then
  begin
    // The client area of a groupbox under winapi is the whole size, including
    // the frame. The LCL defines the client area without the frame.
    // -> Adjust the position
    // add the upper frame with the caption
    DC := Windows.GetDC(Handle);
    GetTextMetrics(DC, TM);
    ORect.Top := TM.TMHeight;
//    DbgAppendToFile(ExtractFilePath(ParamStr(0)) + '1.log',
//      'GetLCLClientBoundsOffset Handle: ' + IntToStr(Handle) +
//      ' Top: ' + IntToStr(TM.TMHeight)
//    );
    ReleaseDC(Handle, DC);
    { GetTextMetrics may not be supported on all devices, so we
      have fallback to GetSystemMetrics if it doesn't work.
      Also careful that SM_CYSMCAPTION returns 0 on the emulator }
    if ORect.Top = 0 then ORect.Top := GetSystemMetrics(SM_CYCAPTION);
    if ORect.Top = 0 then ORect.Top := 2;
    // add the left, right and bottom frame borders
    ORect.Left := 2;
    ORect.Right := -2;
    ORect.Bottom := -2;
  end else
  if TheWinControl is TCustomTabControl then
  begin
    // Can't use complete client rect in wince interface, bottom part contains the tabs
    Windows.GetClientRect(Handle, @ARect);
    ORect := ARect;
    Windows.SendMessage(Handle, TCM_AdjustRect, 0, LPARAM(@ORect));
    Dec(ORect.Right, ARect.Right);
    Dec(ORect.Bottom, ARect.Bottom);
  end;

  {$ifdef DEBUG_WINDOW_ORG}
  DebugLn(
    Format('GetLCLClientBoundsOffset Name=%s OLeft=%d OTop=%d ORight=%d OBottom=%d',
     [TheWinControl.Name, ORect.Left, ORect.Top, ORect.Right, ORect.Bottom]));
  {$endif}

  Result := True;
end;

function GetLCLClientBoundsOffset(Handle: HWnd; var Rect: TRect): boolean;
var
  OwnerObject: TObject;
begin
  OwnerObject := GetWindowInfo(Handle)^.WinControl;
  Result:=GetLCLClientBoundsOffset(OwnerObject, Rect);
end;

procedure LCLBoundsToWin32Bounds(Sender: TObject; var Left, Top: Integer);
var
  ORect: TRect;
Begin
  if (Sender=nil) or (not (Sender is TWinControl)) then exit;
  if not GetLCLClientBoundsOffset(TWinControl(Sender).Parent, ORect) then exit;
  inc(Left, ORect.Left);
  inc(Top, ORect.Top);
End;

procedure LCLFormSizeToWin32Size(Form: TCustomForm; var AWidth, AHeight: Integer);
{$NOTE Should be moved to WSWin32Forms, if the windowproc is splitted}
var
  SizeRect: Windows.RECT;
  BorderStyle: TFormBorderStyle;
begin
  with SizeRect do
  begin
    Left := 0;
    Top := 0;
    Right := AWidth;
    Bottom := AHeight;
  end;
  BorderStyle := Form.BorderStyle;
  Windows.AdjustWindowRectEx(@SizeRect, BorderStyleToWinAPIFlags(
      BorderStyle), false, BorderStyleToWinAPIFlagsEx(Form, BorderStyle));
  AWidth := SizeRect.Right - SizeRect.Left;
  AHeight := SizeRect.Bottom - SizeRect.Top;
end;

procedure GetWin32ControlPos(Window, Parent: HWND; var Left, Top: integer);
var
  parRect, winRect: Windows.TRect;
begin
  Windows.GetWindowRect(Window, @winRect);
  Windows.GetWindowRect(Parent, @parRect);
  Left := winRect.Left - parRect.Left;
  Top := winRect.Top - parRect.Top;
end;

{
  Updates the window style of the window indicated by Handle.
  The new style is the Style parameter.
  Only the bits set in the StyleMask are changed,
  the other bits remain untouched.
  If the bits in the StyleMask are not used in the Style,
  there are cleared.
}
procedure UpdateWindowStyle(Handle: HWnd; Style: integer; StyleMask: integer);
var
  CurrentStyle,
  NewStyle : PtrInt;
begin
  CurrentStyle := Windows.GetWindowLong(Handle, GWL_STYLE);
  NewStyle := (Style and StyleMask) or (CurrentStyle and (not StyleMask));
  Windows.SetWindowLong(Handle, GWL_STYLE, NewStyle);
end;

function BorderStyleToWinAPIFlags(Style: TFormBorderStyle): DWORD;
begin
  Result := WS_CLIPCHILDREN or WS_CLIPSIBLINGS;
  case Application.ApplicationType of
  { Under Desktop or Handheld mode we get an application which
    looks similar to a desktop one, with sizable windows }
    atDesktop:
      begin
        case Style of
        bsSizeable, bsSizeToolWin:
          Result := Result or (WS_OVERLAPPED or WS_THICKFRAME or WS_CAPTION);
        bsSingle, bsToolWindow:
          Result := Result or (WS_OVERLAPPED or WS_BORDER or WS_CAPTION);
        bsDialog:
          Result := Result or (WS_POPUP or WS_BORDER or WS_CAPTION);
        bsNone:
          Result := Result or WS_POPUP;
        end;
      end;
    { Under PDA or Smartphone modes most windows are enlarged to fit the screen
      Dialogs and borderless windows are exceptions }
    atPDA, atKeyPadDevice, atDefault:
      begin
        case Style of
        bsDialog:
          Result := Result or (WS_POPUP or WS_BORDER or WS_CAPTION);
        bsNone:
          Result := Result or WS_POPUP;
        else
          Result := 0; // Never add WS_VISIBLE here, bug http://bugs.freepascal.org/view.php?id=12193
        end;
      end;
  end;
end;

function BorderStyleToWinAPIFlagsEx(AForm: TCustomForm; Style: TFormBorderStyle): DWORD;
begin
  Result := 0;

  case Application.ApplicationType of

    atDesktop:
    begin
      case Style of
      bsDialog:
        Result := WS_EX_DLGMODALFRAME or WS_EX_WINDOWEDGE;
      bsToolWindow, bsSizeToolWin:
        Result := WS_EX_TOOLWINDOW;
      end;
    end;

    atPDA, atKeyPadDevice, atDefault:
    begin
      {$ifdef WinCE}
      // Adds an "OK" close button to the title bar instead of the standard
      // "X" minimize button, unless the developer overrides that decision
      case WinCEWidgetset.WinCETitlePolicy of

        tpAlwaysUseOKButton: Result := WS_EX_CAPTIONOKBTN;
        
        
        tpControlWithBorderIcons:
        begin
          if not (biMinimize in AForm.BorderIcons) then Result := WS_EX_CAPTIONOKBTN;
        end;
      else
        if Style = bsDialog then Result := WS_EX_CAPTIONOKBTN;
      end;
      {$endif}
    end;

  end;
end;

function GetFileVersion(FileName: string): dword;
var
  buf: pointer;
  lenBuf: dword;
  fixedInfo: ^VS_FIXEDFILEINFO;
  WideBuffer: widestring;
begin
  Result := $FFFFFFFF;
  WideBuffer := UTF8Decode(FileName);
  lenBuf := GetFileVersionInfoSizeW(PWideChar(WideBuffer), lenBuf);
  if lenBuf > 0 then
  begin
    GetMem(buf, lenBuf);
    if GetFileVersionInfoW(PWideChar(WideBuffer), 0, lenBuf, buf) then
    begin
      VerQueryValue(buf, '\', pointer(fixedInfo), lenBuf);
      Result := fixedInfo^.dwFileVersionMS;
    end;
    FreeMem(buf);
  end;
end;

function AllocWindowInfo(Window: HWND): PWindowInfo;
var
  WindowInfo: PWindowInfo;
begin
  New(WindowInfo);
  FillChar(WindowInfo^, sizeof(WindowInfo^), 0);
  WindowInfo^.DrawItemIndex := -1;
  {$ifdef win32}
  Windows.SetPropW(Window, PWideChar(DWord(WindowInfoAtom)), DWord(WindowInfo));
  {$else}
  Windows.SetProp(Window, PWideChar(DWord(WindowInfoAtom)), DWord(WindowInfo));
  {$endif}
  Result := WindowInfo;
end;

function DisposeWindowInfo(Window: HWND): boolean;
var
  WindowInfo: PWindowInfo;
begin
  {$ifdef win32}
  WindowInfo := PWindowInfo(Windows.GetPropW(Window, PWideChar(DWord(WindowInfoAtom))));
  Result := Windows.RemovePropW(Window, PWideChar(DWord(WindowInfoAtom)))<>0;
  {$else}
  WindowInfo := PWindowInfo(Windows.GetProp(Window, PWideChar(DWord(WindowInfoAtom))));
  Result := Windows.RemoveProp(Window, PWideChar(DWord(WindowInfoAtom)))<>0;
  {$endif}
  if Result then
    Dispose(WindowInfo);
end;

function GetWindowInfo(Window: HWND): PWindowInfo;
begin
  {$ifdef win32}
  Result := PWindowInfo(Windows.GetPropW(Window, PWideChar(DWord(WindowInfoAtom))));
  {$else}
  Result := PWindowInfo(Windows.GetProp(Window, PWideChar(DWord(WindowInfoAtom))));
  {$endif}
  if Result = nil then
    Result := @DefaultWindowInfo;
end;

function WndClassName(Wnd: HWND): String; inline;
var
  winClassName: array[0..19] of widechar;
begin
  GetClassName(Wnd, @winClassName, 20);
  Result := winClassName;
end;

function IsAlienWindow(Wnd: HWND): Boolean;

const
  // list window class names is taken here:
  // http://www.pocketpcdn.com/print/articles/?&atb.set(c_id)=51&atb.set(a_id)=7165&atb.perform(details)=
  AlienWindowClasses: array[0..7] of String =
  (
    'menu_worker',        // can be also found by SHFindMenuBar
    'MS_SOFTKEY_CE_1.0',  // google about that one. as I understand it related to bottom menu too
    'Default Ime',
    'Ime',
    'static',
    'OLEAUT32',
    'FAKEIMEUI',
    'tooltips_class32'
  );

var
  i: integer;
  WndName: String;
begin
  WndName := WndClassName(Wnd);
  Result := False;
  for i := Low(AlienWindowClasses) to High(AlienWindowClasses) do
    if WndName = AlienWindowClasses[i] then
      Exit(True);
end;

{procedure LogWindow(Window: HWND);
begin
  DbgAppendToFile(ExtractFilePath(ParamStr(0)) + '1.log',
    'Window = ' + IntToStr(Window) + ' ClassName = ' + WndClassName(Window) + ' Thread id = ' + IntToStr(GetWindowThreadProcessId(Window, nil)));
end;}

function MeasureText(const AWinControl: TWinControl; Text: string; var Width, Height: integer): boolean;
var
  textSize: Windows.SIZE;
  winHandle: HWND;
  canvasHandle: HDC;
  oldFontHandle: HFONT;
begin
  winHandle := AWinControl.Handle;
  canvasHandle := GetDC(winHandle);
  oldFontHandle := SelectObject(canvasHandle, Windows.SendMessage(winHandle, WM_GetFont, 0, 0));
  DeleteAmpersands(Text);

  Result := LCLIntf.GetTextExtentPoint32(canvasHandle, PChar(Text), Length(Text), textSize);

  if Result then
  begin
    Width := textSize.cx;
    Height := textSize.cy;
  end;
  SelectObject(canvasHandle, oldFontHandle);
  ReleaseDC(winHandle, canvasHandle);
end;

function GetControlText(AHandle: HWND): string;
var
  TextLen: dword;
  tmpWideStr : PWideChar;
begin
  TextLen := GetWindowTextLength(AHandle);
  tmpWideStr := PWideChar(SysAllocStringLen(nil,TextLen + 1));
  GetWindowTextW(AHandle, tmpWideStr, TextLen + 1);
  Result := UTF8Encode(widestring(tmpWideStr));
  SysFreeString(tmpWideStr);
end;

procedure WideStrCopy(Dest, Src: PWideChar);
var
  counter : longint;
Begin
  counter := 0;
  while Src[counter] <> #0 do
  begin
    Dest[counter] := Src[counter];
    Inc(counter);
  end;
  Dest[counter] := #0;
end;

{ Exactly equal to StrLCopy but for PWideChars
  Copyes a widestring up to a maximal length, in WideChars }
function WideStrLCopy(dest, source: PWideChar; maxlen: SizeInt): PWideChar;
var
  counter: SizeInt;
begin
  counter := 0;

  while (Source[counter] <> #0)  and (counter < MaxLen) do
  begin
    Dest[counter] := Source[counter];
    Inc(counter);
  end;

  { terminate the string }
  Dest[counter] := #0;
  Result := Dest;
end;

function WideStrCmp(W1, W2: PWideChar): Integer;
var
  counter: Integer;
Begin
  counter := 0;
  While W1[counter] = W2[counter] do
  Begin
    if (W2[counter] = #0) or (W1[counter] = #0) then
       break;
    Inc(counter);
  end;
  Result := ord(W1[counter]) - ord(W2[counter]);
end;

function GetWinCEPlatform: TApplicationType;
{$ifdef Win32}
begin
  Result := atDesktop;
end;
{$else}
var
  buf: array[0..50] of WideChar;
begin
  Result := atDefault;

  if Windows.SystemParametersInfo(SPI_GETPLATFORMTYPE, sizeof(buf), @buf, 0) then
  begin
    if WideStrCmp(@buf, 'PocketPC') = 0 then
      Result := atPDA
    else if WideStrCmp(@buf, 'SmartPhone') = 0 then
      Result := atKeyPadDevice
    else
      // Other devices can set anything for the platform name,
      // see http://bugs.freepascal.org/view.php?id=16615
      // Here we just suppose that they are atDesktop
      Result := atDesktop;
  end
  else if GetLastError = ERROR_ACCESS_DENIED then
    Result := atKeyPadDevice
  else
    Result := atPDA;
end;
{$endif}

function GetWinCEVersion: TWinCEVersion;
{$ifdef Win32}
begin
  Result := wince_other;
end;
{$else}
var
  versionInfo: OSVERSIONINFO;
begin
  Result := wince_other;

  System.FillChar(versionInfo, sizeof(OSVERSIONINFO), #0);
  versionInfo.dwOSVersionInfoSize := sizeof(OSVERSIONINFO);

  if GetVersionEx(@versionInfo) then
  begin
    case versionInfo.dwMajorVersion of
    1: Result := wince_1;
    2: Result := Wince_2;
    3: Result := Wince_3;
    4: Result := Wince_4;
    5:
    begin
      if versionInfo.dwMinorVersion = 2 then Result := Wince_6
      else Result := Wince_5;
    end;
    6: Result := Wince_6;
    7: Result := wince_7;
    end;
  end;
end;
{$endif}

function IsHiResMode: Boolean;
begin
  {$ifdef Win32}
  Result := False;
  {$else}
  Result := Screen.Width > 240;
  {$endif}
end;


{-------------------------------------------------------------------------------
  procedure AddToChangedMenus(Window: HWnd);

  Adds Window to the list of windows which need to redraw the main menu.
-------------------------------------------------------------------------------}
procedure AddToChangedMenus(Window: HWnd);
begin
  if ChangedMenus.IndexOf(Pointer(Window)) = -1 then // Window handle is not yet in the list
    ChangedMenus.Add(Pointer(Window));
end;

{------------------------------------------------------------------------------
  Method: RedrawMenus
  Params:  None
  Returns: Nothing

  Redraws all changed menus
 ------------------------------------------------------------------------------}
procedure RedrawMenus;
var
  I: integer;
begin
  for I := 0 to  ChangedMenus.Count - 1 do
    DrawMenuBar(HWND(ChangedMenus[I]));
  ChangedMenus.Clear;
end;

procedure DoInitialization;
begin
  FillChar(DefaultWindowInfo, sizeof(DefaultWindowInfo), 0);
  DefaultWindowInfo.DrawItemIndex := -1;
  WindowInfoAtom := Windows.GlobalAddAtom('WindowInfo');
  ChangedMenus := TList.Create;
end;

procedure DoFinalization;
begin
  Windows.GlobalDeleteAtom(WindowInfoAtom);
  WindowInfoAtom := 0;
  ChangedMenus.Free;
end;

initialization
  DoInitialization;

finalization
  DoFinalization;

end.





