Disabling Window "X" button?(PLEASE HELP!)

Ok. I am making a program. It is pretty cool. It is a window manager. You can close, disable, enable, hide, show, set caption, send keys, etc.

I want a function to disable the close("X") button of a window. I have EnumWindows called. All the others work fine. How would I disable a window's close("X") button?

There is a certain Window Style (WS_*) that you are to specify when you create the window with CreateWindow(). I just can't remember the specification.

I can't remember what it is, but I'll continue to look for the link.

--Garfield

Thanks for looking for it. I know there's WS_CLOSEBOX or something like that, but I'm not sure. I know that in the class there's a CS_NOCLOSE that does it, but I'm not sure how to create that class style to a window.

You might want to try the WS_MINIMIZEBOX. I'm not sure it that shows the "X", but it might disable it.

--Garfield

How??

>> not sure how to create that class style to a window. <<

You would specify it in type WNDCLASS. In the style field.

>> How?? <<

To create the window out of a window class just:

hwnd = CreateWindow(szAppName, "Test", WS_MINIMIZEBOX, etc., etc., etc.)

I can't remember the rest of the params off my head, but I could have sample code if you like.

I have to go now, but I'll wip up a window with a disabled "X" button, okay?

--Garfield

I want to disable an X of another window. Not mine. Cause I used EnumWindows() and I want to disable the X of a selected window. I know how to use FindWindow(). I know I can disable the X in my own.

you can use SetWindowLong to change the windows winproc. trap the WM_CLOSE and just do a return 0; and pass all other messages to the old winproc.

Say the window name is "Example". Will you show me some code to what you mean, Stoned_Coder?

Why do you want to disable the Close of some OTHER exe?

Why would the user (you in this case) try to close an exe and not want it to close? (except by mistake)

Do you have a big wooden horse to give me? Looking for Helen?

No, I'm not making a trojan. It's just a project for a Window Manager just for fun. I never have taken classes on C++ either. So none of mine are homework, just self-wanted projects.

>> Do you have a big wooden horse to give me? Looking for Helen? <<

LOL :D That is definitely classic!

Well if there IS a WS_CLOSEBOX or something, in CreateWindow do something like

WS_OVERLAPPEDWINDOW |~ WS_CLOSEBOX

or

(WS_OVERLAPPEDWINDOW - WS_CLOSEBOX)

may work.

This code prevents Dev C++ from being closed from the 'X' button or the system menu.

Code:

---

#include <windows.h>

int main()
{
        HWND hwnd = NULL;
       
        while (hwnd==NULL)
                hwnd = FindWindow(0,"Dev-C++ 4.01");

        HMENU hmenu= GetSystemMenu(hwnd,FALSE);
        DeleteMenu(hmenu,SC_CLOSE,MF_BYCOMMAND );
        LONG style = GetWindowLong(hwnd,GWL_STYLE);
        style ^= WS_SYSMENU;
        SetWindowLong(hwnd,GWL_STYLE,style);
        return 0;
}

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