Application icon problem with multiple-document templates (MFC/MDI)

[Luke schreur]

Hi,

I've created a MFC/MDI application with multiple document templates. When I run the application it's icon is the default MFC icon but the icon of the executable is the icon of one of the documents. I can't seem to figure out why and how this is the case. I want my executable to have to same icon (the one in IDR_MAINFRAME) as my application.

Can someone shed some light this?

Thanks...

[JohnCz]

It is possible that you have created icon that has ID lower than IDR_MAINFRAME.

Make sure that icon you want to show as your executable icon has the lowest ID.

[ackabacka]

I know how to change the application image and that it must be the lowest ID, but what I don't know is how to via compiler options (defines etc) set what application icon to use.
Why?
Well I want to use different application icons for different builds.
The same goes for version info. I know you can make blocks for different languages but my builds all uses the same language but I want the program name (and icon) that shows up in the Open With... list to be different depending on what build setting I've compiled (yes they all generate different exe files) and as that information is taken from the version info I need to alter it for each build.

Anyone?

[Haim B]

Hi,
Great to hear someone encountered the same problem.
Here is the answer:
#if defined _FIRST
IDR_MAINFRAME ICON DISCARDABLE "res\\icon_1.ico"
#elif defined _SECOND
IDR_MAINFRAME ICON DISCARDABLE "res\\icon_2.ico"
#endif

Put it in .rc2 file since .rc file does not get #ifdef.

The question is if we can do the same thing for the document icon? I've tried that and it works fine (e.g. when I call File->Open from inside the application I see the correct icon in the open dialog box) but the file manager always show the same one for both applications.
Anyone? It is quite an emergency. I have release today!

[ackabacka]

Originally posted by Haim B
Hi,
Great to hear someone encountered the same problem.
Here is the answer:
#if defined _FIRST
IDR_MAINFRAME ICON DISCARDABLE "res\\icon_1.ico"
#elif defined _SECOND
IDR_MAINFRAME ICON DISCARDABLE "res\\icon_2.ico"
#endif

Put it in .rc2 file since .rc file does not get #ifdef.

The question is if we can do the same thing for the document icon? I've tried that and it works fine (e.g. when I call File->Open from inside the application I see the correct icon in the open dialog box) but the file manager always show the same one for both applications.
Anyone? It is quite an emergency. I have release today!

I actually solved my problem long time ago using a different method. Interesting to see another solution though.
My solution was to use conditions (property on a resource icon).
I use my method for using different document icons too (and it works great!). You have to use different IDs though and add an #ifdef where your program uses that ID (initinstance when creating the doc template for instance).

But when thinking about it, your method should work too, but you have to add another ifdef in the rc2 file for the document template ID of the document as well

Hope this helped!