WinCE Programming Tips

This page is a under construction reference to in the development for the Windows CE platform, covering topics specific to it.

Other Interfaces

• Lazarus known issues (things that will never be fixed) - A list of interface compatibility issues
• Win32/64 Interface - The Windows API (formerly Win32 API) interface for Windows 95/98/Me/2000/XP/Vista/10, but not CE
• Windows CE Interface - For Pocket PC and Smartphones
• Carbon Interface - The Carbon 32 bit interface for macOS (deprecated; removed from macOS 10.15)
• Cocoa Interface - The Cocoa 64 bit interface for macOS
• Qt Interface - The Qt4 interface for Unixes, macOS, Windows, and Linux-based PDAs
• Qt5 Interface - The Qt5 interface for Unixes, macOS, Windows, and Linux-based PDAs
• GTK1 Interface - The gtk1 interface for Unixes, macOS (X11), Windows
• GTK2 Interface - The gtk2 interface for Unixes, macOS (X11), Windows
• GTK3 Interface - The gtk3 interface for Unixes, macOS (X11), Windows
• fpGUI Interface - Based on the fpGUI library, which is a cross-platform toolkit completely written in Object Pascal
• Custom Drawn Interface - A cross-platform LCL backend written completely in Object Pascal inside Lazarus. The Lazarus interface to Android.

Platform specific Tips

• Android Programming - For Android smartphones and tablets
• iPhone/iPod development - About using Objective Pascal to develop iOS applications
• FreeBSD Programming Tips - FreeBSD programming tips
• Linux Programming Tips - How to execute particular programming tasks in Linux
• macOS Programming Tips - Lazarus tips, useful tools, Unix commands, and more...
• WinCE Programming Tips - Using the telephone API, sending SMSes, and more...
• Windows Programming Tips - Desktop Windows programming tips

Interface Development Articles

• Carbon interface internals - If you want to help improving the Carbon interface
• Windows CE Development Notes - For Pocket PC and Smartphones
• Adding a new interface - How to add a new widget set interface
• LCL Defines - Choosing the right options to recompile LCL
• LCL Internals - Some info about the inner workings of the LCL
• Cocoa Internals - Some info about the inner workings of the Cocoa widgetset

TIPS/ FAQ

Get Device ID

Get and ID of your device useful for protect your application. This work only on Windows Mobile 5.0 and Windows CE 5.1 <delphi>

function GetDeviceUniqueID(AppData:LPCWSTR; cbApplictionData:Integer; dwDeviceIDVersion:Integer; var deviceIDOuput; var pcbDeviceIDOutput:DWORD):Integer; external 'coredll.dll' name 'GetDeviceUniqueID';

function GetDeviceID: string; var

 AppData: array[0..19] of WideChar;
 DeviceID : array[0..19] of Byte;
 Count: DWORD;
 s: string;
 Res, i:Integer;

begin

 //not sure about Unicode
 AppData := Utf8Decode('MY_SIG');//any string you like
 Count := SizeOf(DeviceID);
 FillChar(DeviceID, Count, #0);
 Res := GetDeviceUniqueID(AppData, SizeOF(AppData), 1, DeviceID, Count);
 if Res = 0 then
 begin
   Result := ;
   for i := 0 to Count -1 do
   begin
     if (i > 0) and ((i mod 2) = 0) then
       Result := Result + '-'; //add space make the string wrap in label
     Result := Result + IntToHex(DeviceID[i], 2);
   end;
 end
 else
   Result := ;//error accord

// you can MD5 it with your string // Result := MD5Print(MD5Buffer(DeviceID, Count)); end; </delphi> Reference pages: http://msdn2.microsoft.com/en-us/library/ms893522.aspx http://peterfoot.net/RetrieveIMEIThroughTAPI.aspx http://blogs.msdn.com/jehance/archive/2004/07/12/181067.aspx

Get Device Name

Easy to get it from registry

<delphi> function GetDeviceName: string; var

 aReg:TRegistry;

begin

 aReg := TRegistry.Create(KEY_READ);
 try
   aReg.RootKey := HKEY_LOCAL_MACHINE;
   aReg.OpenKey('Ident', False);
   if aReg.ValueExists('Name') then
     Result := aReg.ReadString('Name')
   else
     Result := 'GUEST';
 finally
   aReg.Free;
 end;

end; </delphi>

Show/Hide SIP Panel

SIP: Software Input Panel button, it is a keyboard come with WinCE for touch screen devices.

<delphi> const

 //some of consts already found in Windows
 SIPF_OFF    =	$00000000;
 SIPF_ON     =	$00000001;
 SIPF_DOCKED =	$00000002;
 SIPF_LOCKED =	$00000004;

function SipShowIM(IPStatus:DWORD):Integer; stdcall; external 'coredll.dll' name 'SipShowIM';

begin

 SipShowIM(SIPF_ON)

end;

</delphi>

Wakeup Device/ Power On

If you like to make alarm application this function make your device power on, you need also make some sounds with it.

<delphi> function SetSystemPowerState(psState: PWideChar; StateFlags: DWORD; Options : DWORD):DWORD; stdcall; external 'coredll.dll' name 'SetSystemPowerState';

 SetSystemPowerState(nil, POWER_STATE_ON, 0);
 Application.BringToFront;
 ShowWindow(Handle, SW_SHOW);

</delphi>

Using the Telephone API (TAPI)

TAPI reference pages:

http://msdn.microsoft.com/en-us/library/aa922068.aspx

http://www.developer.com/ws/pc/article.php/3496296

Sendings SMSes

Please write me