Recognizing files with an application

Question

After I save a file in a folder with correct extension, when I go back and look at it, the file is unrecognizable to the application. The file association appears to be lost.

I want Windows to be able to recognize all files with a particular extension (*.sp) with my application. How do I do that? and How do I implement that in my VS deployment project.

You are creating desktop application with Qt? You have to write a key and value inside of it in the registry using QSettings in HKEY_CLASSES_ROOT. The key should be named .sp immediately in Root key. After this you have to set the (default) value to path where you executable should be installed followed by %1 for the first arg, which would be passed by explorer (the file selected by user) - this is valid for XP, but for Vista and Windows 7 not sure - I think there is a bit difference. — Rolice, Jul 13 '11 at 16:31

score 2 · Accepted Answer · answered Jul 13 '11 at 16:25

2

Deployment and Associations

The link includes this text:

The deployment tools in Visual Studio include a File Types Editor, which allows you to specify document types and associate them with file extensions. In addition, you can specify the verbs or actions for each document type and specify MIME types for the document types for use in browsers. For more information, ...

So, I guess it's exactly what you need. HTH

answered Jul 13 '11 at 16:25

Armen Tsirunyan

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Hey.. Thanks!! I did this but whenever I click on the file, it launches the application, but doesnt open the file itself. Anything I m missing on? – Nick Jul 14 '11 at 04:14

score 0 · Answer 2 · answered Jul 13 '11 at 16:25

0

http://developer.qt.nokia.com/wiki/Assigning_a_file_type_to_an_Application_on_Windows

answered Jul 13 '11 at 16:25

Vivek Goel

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Recognizing files with an application

2 Answers2