1. Developing Managed Code for Smartphone 2003
Tony Whitter

2. Smartphone 2003 Based on Windows CE .NET 4.2
.NET Compact Framework in ROM
Same classes as Pocket PC
ADO.NET
Web services
Rich Forms Designer
XML Support
Platform Invoke to CE APIs

3. Smartphone NETCF Controls
Supported
Excluded
Label
TextBox
MainMenu
CheckBox
PictureBox
Panel
ComboBox
ListView
TreeView
HScrollBar
VScrollBar
Timer
ProgressBar
ImageList
Button
RadioButton
ListBox
TabControl
DomainUpDown
NumericUpDown
TrackBar
ContextMenu
ToolBar
StatusBar
OpenFileDialog
SaveFileDialog
InputPanel
Unsupported
DataGrid

4. Missing Controls
Multi-Item Picker
Date and Time Pickers

5. Smartphone User Interface
Follow guidelines within the SDK
Left menu item can only be default action
No pop up menu items (Unsupported Exception)
Right menu item can be pop up
Entry fields should be
identified by a Label above
the field

6. Input Modes Pocket PC provides Soft Input Panel for data input
Smartphone uses Input Modes

7. Input Modes Need to use Native Interop Input Mode Description
EIM_SPELL
Also known as multitap
EIM_AMBIG
T9 predictive text input
EIM_NUMBERS
Numeric only
EIM_TEXT
Either Spell or T9, depending on which of these was last used by the user in an edit control with the EIM_TEXT input mode. Use this in edit controls where the user's mode preference is to be used as the default mode.
SendMessage(hControl, EM_SETINPUTMODE, 0, EIM_NUMBERS);
Need to use Native Interop

8. Native Interop Platform Invoke (P/Invoke) Caveats
Call custom native code and Windows APIs
Declare statement in Visual Basic .NET
DLLImport Attribute in C# / Visual Basic .NET
Very flexible
Good support on the device
Caveats
No COM Interop
Marshalling is limited

9. MessageBox int MessageBox( HWND hWnd, LPCTSTR lpText,
LPCTSTR lpCaption,
UINT uType );
[DllImport("coredll.dll")]
private static extern int MessageBox(
IntPtr hWnd,
string lpText,
string lpCaption,
uint uType);
Private Declare Function MessageBox Lib "coredll.dll" ( _
ByVal hwndOwner As IntPtr, _
ByVal lpText As String, _
ByVal lpCaption As String, _
ByVal uType As Integer) As Integer

10. MessageBox using System.Runtime.InteropServices;
[DllImport("coredll.dll")]
private static extern int MessageBox(
IntPtr hWnd,
string lpText,
string lpCaption,
uint uType);
MessageBox(IntPtr.Zero, "Hello World!", "Interop1", 0);
Loads and initialises coredll.dll
Locates the entry point MessageBox
Calls into the unmanaged code
Completes and returns back to managed code

11. Interop Warnings Some data types require manual marshalling
Nested reference types
Unsafe code in C#
Wrapper DLL in C++
Handling of HWNDs is unsupported
Forwards compatibility is not guaranteed

12. Scrolling Forms Used for larger amounts of data entry
Automatic for native applications
Create dialog to be longer than screen
Ensure vertical scrollbar is enabled
No automatic support in managed code
Implement using a Panel and VScrollBar

13. Scrolling Downwards
Scrolling down should fit the next control on the bottom of the form

14. Scrolling Upwards
Scrolling upwards should fit the previous control at the top of the form
If the control has a label identifier, this should be at the top of the form

15. Owner Drawn ListViews Use to display complex data
Multiple lines / columns
Icons / Bitmaps
Respond to key presses
Implemented as a custom control

16. Owner Drawn ListViews Derive from Control class
OnKeyDown to trap current selection
OnPaint for custom draw routine onto Bitmap object
OwnerDrawnList
Bitmap
VScrollBar
OnKeyDown
OnPaint

17. Smartphone 2003 UI .NET Compact Framework enables rapid development
14 Inbuilt Controls for rich user interface
Extensible using custom controls
Workarounds for Input Modes, Scrolling and Owner ListViews

18. + .NET Compact Framework,
Windows Mobile Roadmap
eVC 3 (C++)
eVC 4 (C++)
VS .NET 2003 (C#, VB.NET)
eVC 3 (C++)
eVB 3 (VB)
eVC 3 (C++)
eVB 3 (VB)
VS 2005 (C#, VB.NET, C++)
Tools
Devices
PPC 2000
PPC + PE v Next
VGA, Landscape, Square, Standard
SP v Next
QVGA,
Standard
PPC + PE 2002
SP 2002
PPC + PE 2003
SP 2003
Platforms
+ .NET CF Whidbey, New native runtimes, 1st class managed code, Notification Manager, DirectX, Location APIs, Dr Watson
+ .NET Compact Framework,
Bluetooth,
SMS
Win32,
POOM
+ MFC,
Connection Manager
APIs
CE OS
3.0
3.0
4.2
Macallan

19. Futures From the PDC In the OS For the developer
eDB – a step forward from CEDB
Location Services API
Update to WebServer (ASP support)
Pocket Watson
DirectX (D3D, modular Media Player)
For the developer
Combined IDE for Native and Managed
Mobile SOAP toolkit
.NET CF V2 development
COM Interop, XPath, Crypto, Registry, Generics etc.
Hosting Interface
New Libraries
System.Messaging
Unified Notifications
POOM – SMS, Mail, Calendar, Tasks etc.
Telephony, all Phone related functions

20. Hardware Futures Displays Form Factors Multiple-Radios
Pocket PC Portrait/Landscape support
Pocket PC Square Screen
Pocket PC VGA
Smartphone QVGA
Form Factors
Hybrid devices
Pocket PC softkey support
Multiple-Radios
GSM/GPRS CDMA/1xRTT
WiFi (802.1x)
Bluetooth
Location Services

21. SQL CE Futures Laguna code name for SQL CE 3.0 Runtime Improvements:
Performance – remove OLEDB for managed code
Re-use spent storage pages
Query hints
Updateable scrollable cursors.
Multi User
Tools:
Integration to Workbench
DTS
Data Designer in Whidbey

22. Summary
Windows Mobile 2003 offers a rich and robust platform on which to build and deploy Mobile applications.
Microsoft Visual Studio .NET 2003 provides state of the art development tools for targeting the Compact Framework.
The Compact Framework brings Mobile devices to the mainstream development community.

23. © 2003-2004 Microsoft Corporation. All rights reserved.
This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.