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Editorial Team
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Asked: 2026-05-25T22:14:39+00:00

I’m trying to center the text in a edit control vertically, after some research

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I’m trying to center the text in a edit control vertically, after some research I found I have to process the WM_NCCALCSIZE message.
So i’ve subclassed my edit control, but the WM_NCCALCSIZE message is never sent.

Am I doing something wrong?

EDIT:

So i’m processing the WM_NCCALCSIZE message fine, and I have a 3d border created by passing WS_EX_CLIENTEDGE to CreateWindowEx.
But if I disable windows themes by killing the theme service, the border goes away on the control thats processing the WM_NCCALCSIZE message.
Another control that doesnt process the WM_NCCALCSIZE message still has the border like normal.

So i’m assuming I’m supposed to be doing somethign in WM_NCCALCSIZE that allows me to keep the border? If so what? if not any way to get the border back?

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1 Answer

  1. Editorial Team

    Figured it out, WM_NCCALCSIZE is sent before the edit control is subclassed.
    So i had to superclass the EDIT class.

    EDIT:
    Another solution I just thought of would be to subclass it, then call SetWindowPos with SWP_FRAMECHANGED, this causes it to send the WM_NCCALCSIZE message.

    If anyone has any opinions why one method would be better then the other, please comment 🙂

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