How can I disable resizing window by dragging borders in C++ openGL?

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I'm using C++ openGL and I need my window size to remain constant.
I've used the following function to disable the maximize button:

C++

void toggleGlutWindowMaximizeBox(char *szWindowTitle)
{
    long dwStyle;
    HWND hwndGlut;
    hwndGlut = FindWindow(NULL, szWindowTitle);
    dwStyle = GetWindowLong(hwndGlut, GWL_STYLE);
    dwStyle ^=WS_MAXIMIZEBOX;
    SetWindowLong(hwndGlut, GWL_STYLE, dwStyle);
}

It did work =) the button appeared gray but still the size of the window can be manipulated through its borders!

I googled it a lot but still I couldn't find anything useful.

Can anyone help?

Posted 25-Apr-13 7:25am

ShahadBattar

Updated 27-Aug-22 17:54pm

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Comments

[no name] 25-Apr-13 13:37pm

You would need to set the window border style.

ShahadBattar 25-Apr-13 14:16pm

and how can I do that?
which library should I link with?

Sergey Alexandrovich Kryukov 25-Apr-13 16:21pm

How on Earth could it be related to OpenGL? This is just the Windows API...
—SA

2 solutions

Solution 2

Process Non-Client HitTest

Add ON_WM_NCHITTEST() to MessageMap

LRESULT OnNcHitTest(CPoint point)
{
LRESULT oHitItem= __super::OnNcHitTest(point);
if(oHitItem >= HTSIZEFIRST && oHitItem <= HTSIZELAST)
return HTCLIENT;

return oHitItem;
}

Posted 27-Aug-22 17:54pm

Member 3203938

Comments

Dave Kreskowiak 28-Aug-22 0:03am

Unexplained code snippets are not answers.

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Sergey Alexandrovich Kryukov · Accepted Answer · 2013-04-25T10:28:00

Solution 1

You were really, really close. You picked unrelated style, controlling maximize operation. Resizing by the border is controlled by another bit, WS_SIZEBOX, same as WS_THICKFRAME. You have to clear this bit. Please see:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms632600%28v=vs.85%29.aspx[^].

Likewise, you could take care about removing of minimize box and some other things. Please look by yourself.

—SA

Posted 25-Apr-13 10:28am

Sergey Alexandrovich Kryukov

Comments

ShahadBattar 25-Apr-13 17:02pm

I'll check it
thank you

Sergey Alexandrovich Kryukov 25-Apr-13 17:20pm

Great.
When you get the fix, please don't forget to accept the answer formally (green button).
In all cases, you are welcome to ask your follow-up questions.
—SA

Espen Harlinn 25-Apr-13 18:35pm

5'ed!

Sergey Alexandrovich Kryukov 25-Apr-13 18:42pm

Thank you, Espen.
—SA