Dbl-Click to load a file when app is already running

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Elmo Watson - 27 May 2007 03:22 GMT

I'm using the GetCommandLineArgs (VB.Net 2005) in my form load event
GetOutsideFile(Environment.GetCommandLineArgs())
so that, when I have files associated with my app, and double click on a
file, they will run the app and load the file in it.

However, when the app is already loaded, double-clicking on a file will not
load it, since the application is already running, and the only reference is
in the frmMain's load subroutine.

What do I need to do inside my app, to make this possible?

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Peter Ritchie [C# MVP] - 27 May 2007 15:58 GMT

How are you associating files to your application?

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> I'm using the GetCommandLineArgs (VB.Net 2005) in my form load event
> GetOutsideFile(Environment.GetCommandLineArgs())
[quoted text clipped - 6 lines]
>
> What do I need to do inside my app, to make this possible?

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Elmo Watson - 28 May 2007 19:25 GMT

I'm associating them through my Installer program - - that's not the
problem - I have that part done.

The part that I'm having problem with is that, once associated -
dobule-clicking one file will open the program and load the file - no
problem
BUT - when double clicking on the file, once the program is already loaded
and in memory, WILL NOT load the newly double-clicked file into the program

> How are you associating files to your application?
>
[quoted text clipped - 10 lines]
>>
>> What do I need to do inside my app, to make this possible?

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G Himangi - 30 May 2007 04:31 GMT

I am not sure but I think Windows attempts to communicate with your open app
instance via DDE when a second file is being opened. You will have to handle
DDE messages send to your main app window.

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> I'm associating them through my Installer program - - that's not the
> problem - I have that part done.
[quoted text clipped - 20 lines]
>>>
>>> What do I need to do inside my app, to make this possible?

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Dbl-Click to load a file when app is already running

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