<![CDATA[Bind a C++ Qt application to a file extension on win32]]>Hi,

The .html file extension is bound to iexplore.exe on my win machine.
If I doubleclik a html file in windows explorer, iexplore.exe will be launched.

I have a Qt .exe application on win32 and I would like to bind a file extension to it:
If I doubleclick a file with a specific extension, my app should be started
(like the MFC functionality, see ::SetRegistryKey(...) in app::InitInstance();).

Is there a Qt way to bind an extension to an application
or I have to make it on the hard way and write several registry entries at the installation?

Ciao

]]>https://forum.qt.io/topic/5690/bind-a-c-qt-application-to-a-file-extension-on-win32RSS for NodeMon, 04 May 2026 22:19:38 GMTTue, 10 May 2011 15:45:19 GMT60<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Tue, 18 Feb 2014 21:13:04 GMT]]>[quote author="tanonl" date="1392757014"]I used this code but it didn't work in release mode.
In the function DocumentWindow::ddeExecute, the gotten command is empty when release mode.
@QString command = QString::fromWCharArray((LPCWSTR)::GlobalLock(hData)); @

Is it normal? [/quote]

I got it!!!
@WINBOOL b = ::UnpackDDElParam(WM_DDE_EXECUTE, message->lParam, &unused, (UINT_PTR*)&hData);
Q_ASSERT(b);@

]]>https://forum.qt.io/post/101629https://forum.qt.io/post/101629Tue, 18 Feb 2014 21:13:04 GMT<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Tue, 18 Feb 2014 20:56:54 GMT]]>I used this code but it didn't work in release mode.
In the function DocumentWindow::ddeExecute, the gotten command is empty when release mode.
@QString command = QString::fromWCharArray((LPCWSTR)::GlobalLock(hData)); @

Is it normal?

]]>https://forum.qt.io/post/101628https://forum.qt.io/post/101628Tue, 18 Feb 2014 20:56:54 GMT<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Wed, 11 May 2011 10:59:04 GMT]]>Hoi privet,

I think they should be changed also.
I already did the changes. Thanks for reporting :-)

Gerolf

PS: I will also update the code on gitorious the next days

]]>https://forum.qt.io/post/87449https://forum.qt.io/post/87449Wed, 11 May 2011 10:59:04 GMT<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Wed, 11 May 2011 10:30:05 GMT]]>Wow, I has the right to edit the article.
I did it.
...but...

Maybe the following lines should be changed too in the same way:
registerCommand("New", documentId, "-new %1", "[new("%1")]");
registerCommand("Print", documentId, "-print %1", "[print("%1")]");

I didn't try these lines, so I don't know, if here %1 should be changed too...?

]]>https://forum.qt.io/post/87440https://forum.qt.io/post/87440Wed, 11 May 2011 10:30:05 GMT<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Wed, 11 May 2011 10:22:10 GMT]]>Could you make that modification in the wiki article as well, please?

]]>https://forum.qt.io/post/87438https://forum.qt.io/post/87438Wed, 11 May 2011 10:22:10 GMT<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Wed, 11 May 2011 09:47:07 GMT]]>a little error: your code doesn't work correctly with paths containing spaces.
The solution:
registerCommand("Open", documentId, " "%1"", "[open("%1")]");
(take care of the ")

]]>https://forum.qt.io/post/87427https://forum.qt.io/post/87427Wed, 11 May 2011 09:47:07 GMT<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Tue, 10 May 2011 17:08:41 GMT]]>Nice article, Gerolf!

]]>https://forum.qt.io/post/87313https://forum.qt.io/post/87313Tue, 10 May 2011 17:08:41 GMT<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Tue, 10 May 2011 16:44:38 GMT]]>cool! Thanks! That's what I was looking for! ;-)

]]>https://forum.qt.io/post/87308https://forum.qt.io/post/87308Tue, 10 May 2011 16:44:38 GMT<![CDATA[Reply to Bind a C++ Qt application to a file extension on win32 on Tue, 10 May 2011 16:30:56 GMT]]>You can have a look at my "wiki article":http://developer.qt.nokia.com/wiki/Assigning_a_file_type_to_an_Application_on_Windows , that does exactly that :-)

]]>https://forum.qt.io/post/87305https://forum.qt.io/post/87305Tue, 10 May 2011 16:30:56 GMT