COM in ASM Code
(and other things good)

UPDATED January 8, 2002


In the COM section, see how to use connection points to both receive events and emit them from server objects.

The docking toolbar is kinda on permanent hold. I've begun a new job and just cannot devote the time necessary for this. Anyone dissapointed by this news should email me directly.
 

WARNING !!!
  If you are attempting to build any of the COM examples from MASM32 Service Pack 1, be advised they are not compatable with certain versions of windows.inc.

  The samples were built against version 1.19. The current version 1.25 is much more uncompatable. Iczelion and I worked this out together, there are just a few minor issues you should be able work through.

Personally, I still use windows.inc version 1.19 most of the time.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 

  My personal interest is the Component Object Model (COM) for programmable objects. My personal project of late is coding COM interfaces and objects. I started by writing an article for the Assembly Programming Journal, and after a very long wait my article is finally in print, complete with all the original bugs and none of the later additions. 

  I also do things that don't use COM at all. So you don't miss those, here they are:

OF General ASM Interest:

Here are a few things I've figured out that the general ASM Win32 programmer will appreciate: 

  • A four part tutorial on Splitter Bars in ASM. 

  •  
    Part I How to create this useful yet undefined control in your project
    Part II How to create a custom control class Splitter Bar dll
    as a reusable windows component.
    Part III How you can use a custom control class dll in your own projects.
    Part IV A complete horizontal and vertical Splitter Bar custom control class dll. Includes supports any number of side windows. Also includes a sample app.
  • Custom window captions and shapes too!

  •  
  • Trying to make a shortcut icon?  Go down to the COM section and read the Accessing COM Objects from Assembly tutorial. That's just what it shows you how to do.
  • Extracting WORDs from DWORDs.  Oh go ahead, check it out. More of a philosophy of how to code then all that much info, and guaranteed to take at least two instructions from your programs!
  • Using the registry. Wrapper functions for the registry in an asm code.
  • Debugging Windows ASM applications, no Ice, just code. 


Application(s) I have made in asm

  • The Timer Program simulates a kitchen timer on your screen. Allows you to cook in safety while coding.


THE COM STUFF

  COM may be approached from two directions, either from a client seeking to use an already established API or constructing your own objects and interfaces to export functions. 

   My basic files for making or using COM objects has just been included in the current MASM32 service pack. Hey Mom, I made the big times! 

  While getting together what I should include there, I took a long look at the tutorials as written, and chose to re-write many as MSWord .doc format files (simply the easiest way to control fontography). Thus, many of the web pages that were here are no longer being supported. Any further tutorials will be exclusively be produced in MSWord .doc format.

  The tutorials below were written independently of each other. However, if you are new to COM low level programming, you may wish to read them in this order.

  Those wishing the source code and test apps are directed to the MASM32 download page.  Get the Service Pack 2 v6sp2.zip. I am no longer directly supplying the basic COM files now that they are part of MASM32.
 
 

Links:

We all need good links. These are my best picks:

  • Hutch's Home Page. Hutch is the man who made Win32 practicable from ASM. Also check his MASM32 page. 
  • Iczelion's Example Code. Simple the best tutorials on Win32 in ASM available on the web or anywhere. Also visit his discussion Forum.
  • Microsoft Developers Network (MSDN). OK, so you hate them. Too bad. Here's the info you need. 
  • Assembly Programming Journal. Mentioned earlier, a reader contribution e-mag. Some real gems here. 
  • Art of Assembly. The Art of Assembly Language Programming is a textbook on assembly language programming developed by Randall L Hyde. Useful if you have no other source material on the MASM assembler. 
  • Programmer's Guide to Microsoft MASM. Nothing beats a bound printed reference book. I got mine with my copy of MASM. MASM is however not directly available in stores. It was recently offered as a fulfillment option to developers who have purchased any edition of Visual C++ 6.0 for $19.95 (includes shipping and handling) by contacting Microsoft Order Desk. This link still works, but there is no "standard pricing" anymore, suggesting MS has dropped this product. Call MS direct if interested.
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