COM/ActiveX

Articles at Pocket PC Developer Network

• QA: I cannot use COM objects using #import because _com_issue_error function is undefined. How can I fix it?
  August 08, 2001. When I use #import directive I get the following compile error: error C2065: '_com_issue_errorex' : undeclared identifier. The same code works OK on PC. Can I use smart pointers and #import directive on Pocket PC? How can I use them?
• QA: How can I create unique GUID?
  July 18, 2001. It seems like CoCreateGuid function isn't supported on Windows CE. How can I create unique GUID?

MSDN Technical Articles

• Creating ActiveX Controls for the Internet Explorer on Pocket PC, via the Active Template Library
  Nov. 9, 2000. Learn how to build ActiveX Controls with ATL for Windows CE and use them in Microsoft Internet Explorer-based applications.
• How to Write and Use ActiveX Controls for Microsoft Windows CE 3.0
  June 2000. This paper introduces ActiveX controls, discusses how to build and distribute ActiveX controls for Windows CE, and describes how to use ActiveX controls in Windows CE-based applications. (8 printed pages)
• Using Custom ActiveX Controls with eMbedded Visual Basic 3.0 in Microsoft Windows CE 3.0
  June 2000. This paper addresses how to use custom ActiveX controls in the Microsoft eMbedded Visual Basic 3.0 development system. (7 printed pages)
• Building ActiveX Controls for Microsoft Windows CE Using the Active Template Library
  September 1999. An introductory guide to creating ActiveXR controls for Microsoft WindowsR CE using the Active Template Library (ATL). (51 printed pages)
• How to Write and Use ActiveX Controls for Microsoft Windows CE 2.1
  June 1999. Discusses how to build and distribute Microsoft ActiveXR controls for Microsoft WindowsR CE 2.1 and how to use them in Windows CE-based applications. (8 printed pages)

MS Knowledge base

• HOWTO: Implement Object With Events By Using ATL and eMbedded Visual Basic
  9/4/2002. In order to use an ActiveX object to implement an application, it is often necessary for the ActiveX object to use events to call back into the container application. This article shows how to implement a simple ActiveX object that exposes an event and use that object in an eMbedded Visual Basic application.
• Q265761 - INFO: Unable to Automate Pocket Word and Pocket Excel
  2/15/2001. The Windows CE versions of Microsoft Office products, Pocket Word and Pocket Excel, cannot be automated because their object models are not exposed. Therefore, the eMbedded Visual Basic Toolkit has no means by which to automate them.
• Q270029 - BUG: COleControl::SetControlSize Function Does Not Work
  5/11/2001. When you use the COleControl::SetControlSize function from within a Windows CE (WCE) Microsoft Foundation Classes (MFC) ActiveX ControlWizard generated ActiveX control, the ActiveX control does not resize properly.
• Q286504 - eVB CreateObject Function Causes Memory Leak
  2/24/2001. eMbedded Visual Basic (eVB) programs that use CreateObject on the Pocket PC platform leak memory if CreateObject is called repeatedly for the same class object.
• Q221083 - BUG: Can't Insert CE ActiveX Control onto a Dialog Box in the Resource Editor
  6/26/2001. Inserting a WCE ActiveX control onto a dialog box in the Resource Editor causes the following error: The ActiveX control {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX} is not registered on this computer. Register control and try again

Articles at www.cegadgets.com

• Sinking COM Events with ATL CE
  Much like the desktop, COM under Windows CE provides a way to fire events in a container, like VBCE. Unfortunately, like many other CE development issues, things aren't as easy as they should be. In this article, Ken Rabold discusses problems he experienced while implementing connection points under Windows CE and demonstrates workarounds.
• Using VBCE to Register Your ActiveX and ATL Controls
  If you've developed for Windows CE for any period of time, you know that registering controls on the device can be quite frustrating, and you can encounter problems whether you are using regsvrce or registering during the installation process. Luckily, there is another approach. This article shows that registering controls from VBCE is simple, offers sample code demonstrating the process, and briefly discusses some of the possible benefits of using this technique.

Questions and Answers at www.cegadgets.com

• How do I register a control under Windows CE?
  27-Mar-01.

CodeGuru

• COM for eMbedded Visual C++ 3.0 (Under Windows CE)
  November 8, 2001. The Generation of the COM Server and the COM Client in embedded Visual C++ 3.0 is somewhat different than the Microsoft Visual C++ 6.0. It leads an error in the COM server while running the client. This Article resolves the error and achieves the Server functionality.

DEVBUZZ.COM

• Microsoft eVB COMM control on your Pocket PC using eMbedded Visual Basic.
  This example demonstrates the use of the COMM control within embedded Visual Basic. Serial communications is fundamental to allowing a PC (or in this case a PDA) to talk to modems or other devices. Modems all generally use the Hayes "AT" command set for setup. This set of ASCII text-based commands allows the PC to initialize the modem, tell it to dial a number, hang-up, etc. Other devices use serial communications for diagnostics and troubleshooting purposes. For example, all cars made since the advent of computer based diagnostics have ...

Innovative Decision Support Systems

• Registering Active-X Controls on the Pocket PC
  10/17/01. Registering Active-X controls is relatively simple, but the question comes up regularly in newsgroups and listservs. In this article, Chris Tacke walks you through the three most common ways of registering a control or DLL.

Libraries

• STUtil
  C++ library. Different useful functions that are missed in Windows CE like creating unique GUID, using #import directive, using hardware keys, etc.