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Can you change icon dynamically in Delphi?

Posted on 2014-09-10
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Last Modified: 2014-09-16
Back in the old-old days, I could change an application icon dynamically in the program code,

e.g. application.Icon.LoadFromResourceName(hInstance,'XIcon_Spanish');

This code now does not work; it appears that you can only set the icon through the options screen.
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Question by:GrahamDLovell
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Expert Comment

by:Sinisa Vuk
ID: 40318135
Works for me - win 7 + Delphi 2007 + 4 bit , 16 bit, 32 bit icons....
You are sure that icon is in resource file? (use resource hacker application and look in exe)
Name of icon should be upper cased: XICON_SPANISH
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Accepted Solution

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GrahamDLovell earned 0 total points
ID: 40318364
Thanks for the encouragement to look for the coding problem.

My application has the form name "fMain", so the code should have been:

fMain.Icon.LoadFromResourceName(hInstance,'XIcon_Spanish');

Simple. I am not sure whether it works the same way in Delphi 2007 - I am on XE6.

I have now realised that the run-time icon name serves a different purpose (as a Windows interface, not on the form).

BTW: I changed the resource icon name to upper case, but the compiler changed it back to the mixed case - I am not sure what the resource hacker would show.
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Author Closing Comment

by:GrahamDLovell
ID: 40324961
My problem - my solution, admittedly with encouragement to have another look at the code.
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