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Asked: 2026-06-09T05:51:50+00:00

I want to change caption (text) of a label in the execution time depending

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I want to change caption (text) of a label in the execution time depending on user input. If user presses a button, my program will execute some stuff and write the output into a label. But I have a problem about this.

First, there’s no label in my environment. At least in toolbox. I know, adding from toolbox is not the only way, but I’m a bit scared to touch the old source code and mess things up.

I found a static text element, but I guess because of its a “static” element, I can’t see it in resource.h. So, if I use a function like GetDlgItem(IDC_STATIC);, it doesn’t work. Because there’s no IDC_STATIC in my resource.h.

This was the second one.

And, I used SetDlgItemText(IDC_STATIC, "text");, too. However, because of my resource.h doesn’t know what IDC_STATIC is, I get errors.

Is there a label class/element that is not in toolbox? I guess my IDC_STATIC is not in my resource.h because of its static behavior. Or, is there any other way to update the text of a label/static text?

Thanks for your help.

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1 Answer

  1. Editorial Team

    You want to use a static control, but give it some identifier other than IDC_STATIC. Then you’ll be able to use GetDlgItemText, SetDlgItemText, etc., with that identifier. Alternatively, you could/can use an EDIT control set to read-only, which is pretty much equivalent to a static control1.

    1Even more than many realize — for example, to change the background color of a normal edit control, you respond to WM_CTLCOLOREDIT. To change the background color of a static control or read-only edit control, you respond to WM_CTLCOLORSTATIC.

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