[CoolK]

i have created a Mac OS application using XCode to Compile and Qt Frameword to develop

i am facing a major problem regarding the "open with" command on Mac OS

first of all , my application is supposed to support type files such as "djf" files



if i open my program and work on it for a while , the user has the option to save his work file as djf files

now if the user clicks back on the djf file , my application is supposed to open and load the djf file clicked by the user


the first problem that i am facing is that , the "open with" command on MAC OS is graying out my application so the user has to change the options on the top from "Recommended applications" to "all applications" so that the user will be able to click on my application and select it


the second problem that i have is that even though the user selects my application, my application opens a new instance of it self rather than loading the file being passed as an argument using the command line


i did few tests on my application and i found that my application never receives the file name as an argument in the main.cpp and that was the reason of why it doesnt load the file

i did few more tests using the command line of mac OS where a user can simply say:

open -a [application path/application.app] [argument "file name"]

i noticed that my application never receives [argument "file name"]

then i noticed that if you remove "open -a" from the command line and just keep [application path/application.app] [argument "file name"] while diving in to the application.app/Contents/MacOS/applicationName

this will certainly pass all the parameters needed and my application will load the saved work document to be edited once again

so i am pretty confused , why "open -a" is not passing the right arguments

please note: that open -a only passes two arguments to my application
1- the application path
2- a wierd argument which says "psn_0_xxxxxx"

but as soon as you type in the command line

application.app/Contents/MacOS/applicationName [filename]

this will pass the right arguments to my application



so my question is

since "open -a" is the argument being passed to the console when you double click a file to open with a specific application

how can i make these file types open with my application ? because its not working for me

[larkost]

I have not investigated the underpinnings much, as I always use the "Document Based Application" template when I (rarely) create anything that needs to open files like this, but I think that the standard method of telling an application to open a file is to pass it a AppleEvent. This is so you can pass an already running process the open event, whereas argc/argv only gets done at startup (for the rest you should be in your run loop).

And are you properly registering your application for the extensions in your Info.plist? And then if your application is not in /Applications (say it is in the build folder of your project), then I would not expect the indexer that finds that information to have indexed it before you run the application.

[Chuckit]

Does your app claim the types in its Info.plist?

[CoolK]

ok i build my app in a different folder NOT the application folder of mac os

once the application is built and the info.plist is created for my app , i open that file and i add my own types

here is how i do it

i have got the Root of course

- CFBundleDocumentTypes (Array)
-- 0 (Dictionary)
--- CFBundleTypeExtentions (Array)
---- 0 (String) djf
--- CFBundleTypeIconFile (String) djf.icns
--- CFBundleTypeName (String)
--- CFBundleTypeRole (String)
--- LSIsAppleDefaultForType (Boolean) yes

the rest of the info.plist is done by default correctly, i just add the above


so yes my application does claim the types in the info.plist as i mentioned above

[CoolK]

this might look better , so you can see how it is being indented

-- CFBundleDocumentTypes (Array)
---- 0 (Dictionary)
------ CFBundleTypeExtentions (Array)
-------- 0 (String) djf
------ CFBundleTypeIconFile (String) djf.icns
------ CFBundleTypeName (String)
------ CFBundleTypeRole (String)
------ LSIsAppleDefaultForType (Boolean) yes