Change icon of single VI/Window

[Ton Plomp]

Does anybody know if it's possible to change the icon (taskbar/titlebar) of a singel window?

I'm looking for a solution that might be windows only! Win32 is accepted as well.

Ton

[Black Pearl]

Just a 'hack' idea: make the window it's own exe with the icon1, then call this exe from the main (icon2).

Felix

[Ton Plomp]

Just a 'hack' idea: make the window it's own exe with the icon1, then call this exe from the main (icon2).

Felix

No i'm not really looking for a hack, I just want change the icon of one dialog window.

Here's the code I currently have which doesn't work:

It seems like the LoadImage works properly, but when I run it I can see that alt-tab the default labview icon is removed but not replace by the icon I want., but I cannot get it back.

SetWindowIcon.vi (LabVIEW 2009), you should be able to run the code wit any bitmap file.

Ton

[ShaunR]

Change the "uType " to "1" (icon) instead of "0" (bitmap) and load an ".ico" file.

[Ton Plomp]

Change the "uType " to "1" (icon) instead of "0" (bitmap) and load an ".ico" file.

Yes that definitly works!

Thanks for correcting me.

Now comes the bonus question:

Mac

Linux

Ton

[ShaunR]

Yes that definitly works!

Thanks for correcting me.

Now comes the bonus question:

Mac

Linux

Ton

Buy me a MAC and LabView for MAC and Linux and I'll tell you

BTW. No problems changing the icon back again?

Edited August 30, 2010 by ShaunR

[Ton Plomp]

BTW. No problems changing the icon back again?

No, the WM_Seticon returns a handle with the old icon.

You can drop this VI:

SetWindowIcon.vi

To set or Reset the icon of a front panel vi!

Here's some little demo code:

That sets and resets the icon of a FP window.

Note that if you don't reset the icon it will be in memory until the FP window is closed.

Can anybody tell me how the code runs on:

LabVIEW 32 on Windows64-bit

LabVIEW 64 on Windows64-bit

EDIT: Fixed VI to manage multiple windows

Ton

[ShaunR]

No, the WM_Seticon returns a handle with the old icon.

You can drop this VI:

To set or Reset the icon of a front panel vi!

Here's some little demo code:

That sets and resets the icon of a FP window.

Note that if you don't reset the icon it will be in memory until the FP window is closed.

Can anybody tell me how the code runs on:

LabVIEW 32 on Windows64-bit

LabVIEW 64 on Windows64-bit

Ton

Works fine on both x64 an x32 using Win7 and Vista ( once I'd replaced all the ogk stuff )

[Rolf Kalbermatter]

Yes that definitly works!

Thanks for correcting me.

Now comes the bonus question:

Mac

Linux

Can't really help you with that (well I could theoretically but don't have enough time currently to spend on these things). But if you want to go multiplatform you definitely want to write external code in form of a shared library. Maintaining such platform specific code in the diagram is a major pita. So I guess DLL/shared library it is going to be .

Also additional bonus points/troubles for making the that code NOT depend on platform specific icon resources .

[CT2DAC]

Oooold thread, but maybe someone will answer.

I'd like to change the icon but NOT from an .ico file, i'd prefer to have a LabView image constant.

I tried to find some .net to create an image from an array instead of "from file" but I got lost and cannot find anything when selecting on LV .net constructor....

 

[hooovahh]

The problem with this idea, is that the ico file contains multiple images in it, at different resolutions.  You could in theory, take the LabVIEW image constant, save it to a temporary PNG file, then use that path to set the icon.  But I think you'd be better off with an ico file itself.  You can embed the ico file in the VI as a string constant, and do the same thing, saving it to a temporary location as well.

[ShaunR]

31 minutes ago, hooovahh said:

The problem with this idea, is that the ico file contains multiple images in it, at different resolutions.  You could in theory, take the LabVIEW image constant, save it to a temporary PNG file, then use that path to set the icon.  But I think you'd be better off with an ico file itself.  You can embed the ico file in the VI as a string constant, and do the same thing, saving it to a temporary location as well.

You can create an icon on-the-fly using CreateIconIndirect. I have never found the need but, in theory, you could convert an image into the bitmap masks required for an icon. You could then use the WM_SetIcon as previously.

[CT2DAC]

On 2/6/2023 at 3:00 PM, hooovahh said:

You can embed the ico file in the VI as a string constant, and do the same thing, saving it to a temporary location as well.

This is quick and easy, it is certainly worth a try.

Thanks.