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Associating File Extentions

Posted on 1997-05-05
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Last Modified: 2010-04-06
How do I associate a file extention with my application in windows 95?

Example:
BMP is associated with Paint.exe.
when you double click on a *.bmp image, paint is launched with the corrosponding bmp loaded.

I would like to associate the extention *.USER with my application.
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Question by:sleach
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javiertb earned 100 total points
ID: 1335937
Is this a Delphi question or a win95 one?

I guess it's the second one. Just Shift+RightClick on your *.USER  file and the select 'Open With...' . Finally select the application you want to be called everytime you click on a *.USER file.

Programatically it would look something like this:
 
ShellExecute(0,'Open','c:\apppath\yourAPPLICATION.exe',              'c:\filepath\file.USER','c:\apppath',SW_MAXIMIZE);
 


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Expert Comment

by:gysbert1
ID: 1335938
I Assume you want your program to do the association automatically upon install.

I wouldn't say javiertb's method is te best way to do this. It is definitely not the CORRECT way.

You should make an entry in the system registry to associate files in Win95. You could also check if your extention is already associated with something else and then change that if you want.

javiertb's method will not work with .bmp for example since it is associated with another program already !

Drop me a comment if you need help doing this ...
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by:javiertb
ID: 1335939
I know it's not quite the CORRECT way but I didn't exactly know what you were trying to do.
If you want to change the registry by code to enable it to open your files, you will have to create two entries :

- HKEY_CLASSES_ROOT\.USER  --> (Default)= myextension
- HKEY_CLASSES_ROOT\Shell\Open\Command --> (Default) =                                            c:\path\myfile.exe %1

You'll be able to do this via TRegistry component. Look up delphi online help.  

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by:javiertb
ID: 1335940
Ooops, mistake:

the second key should be

- HKEY_CLASSES_ROOT\myextension\Shell\Open\Command -->
  (Default) = c:\path\myfile.exe %1
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