How would I go about disabling the close button?

How would I go about disabling the close button?

First of all, let me get my point for this:
This is an emergency alert system, it pulls from a website which we
manipulate in the back office, the program can be minimized but cannot be
closed (easily, at least none of the people that will use it will know
how). As you can see, if the program as close the Emergency Alerts
wouldn't be seen/heard....that's an issue. I have to deploy this
application on over 200 computers so I want it simple, I don't want to
create a scheduled task, etc.. to keep it running. I simply want it to not
be easy to close.
See my code, below:
/* example.c
This is a Win32 C application (ie, no MFC, WTL, nor even any C++ -- just
plain C) that demonstrates
how to embed a browser "control" (actually, an OLE object) in your own
window (in order to display a
web page, or an HTML file on disk). The bulk of the OLE/COM code is in
DLL.c which creates a DLL that
we use in this simple app. Furthermore, we use LoadLibrary and
GetProcAddress, so our DLL is not
actually loaded until/unless we need it.
NOTE: The DLL we create does not normally use UNICODE strings. If you
compile this example as UNICODE,
then you should do the same with DLL.C.
*/
#include <windows.h>
#include "..\CWebPage.h" /* Declarations of the functions in DLL.c */
// A running count of how many windows we have open that contain a browser
object
unsigned char WindowCount = 0;
// The class name of our Window to host the browser. It can be anything of
your choosing.
static const TCHAR ClassName[] = "EAS";
// Where we store the pointers to CWebPage.dll's functions
EmbedBrowserObjectPtr *lpEmbedBrowserObject;
UnEmbedBrowserObjectPtr *lpUnEmbedBrowserObject;
DisplayHTMLPagePtr *lpDisplayHTMLPage;
DisplayHTMLStrPtr *lpDisplayHTMLStr;
/****************************** WindowProc() ***************************
* Our message handler for our window to host the browser.
*/
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
lParam)
{
if (uMsg == WM_CREATE)
{
// Embed the browser object into our host window. We need do this
only
// once. Note that the browser object will start calling some of our
// IOleInPlaceFrame and IOleClientSite functions as soon as we start
// calling browser object functions in EmbedBrowserObject().
if ((*lpEmbedBrowserObject)(hwnd)) return(-1);
// Another window created with an embedded browser object
++WindowCount;
// Success
return(0);
}
if (uMsg == WM_DESTROY)
{
// Detach the browser object from this window, and free resources.
(*lpUnEmbedBrowserObject)(hwnd);
// One less window
--WindowCount;
// If all the windows are now closed, quit this app
if (!WindowCount) PostQuitMessage(0);
return(TRUE);
}
// NOTE: If you want to resize the area that the browser object
occupies when you
// resize the window, then handle WM_SIZE and use the IWebBrowser2's
put_Width()
// and put_Height() to give it the new dimensions.
return(DefWindowProc(hwnd, uMsg, wParam, lParam));
}
/****************************** WinMain() ***************************
* C program entry point.
*
* This creates a window to host the web browser, and displays a web
* page.
*/
int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hInstNULL, LPSTR
lpszCmdLine, int nCmdShow)
{
HINSTANCE cwebdll;
MSG msg;
WNDCLASSEX wc;
// Load our DLL containing the OLE/COM code. We do this once-only.
It's named "cwebpage.dll"
if ((cwebdll = LoadLibrary("cwebpage.dll")))
{
// Get pointers to the EmbedBrowserObject, DisplayHTMLPage,
DisplayHTMLStr, and UnEmbedBrowserObject
// functions, and store them in some globals.
// Get the address of the EmbedBrowserObject() function. NOTE:
Only Reginald has this one
lpEmbedBrowserObject = (EmbedBrowserObjectPtr
*)GetProcAddress((HINSTANCE)cwebdll, "EmbedBrowserObject");
// Get the address of the UnEmbedBrowserObject() function. NOTE:
Only Reginald has this one
lpUnEmbedBrowserObject = (UnEmbedBrowserObjectPtr
*)GetProcAddress((HINSTANCE)cwebdll, "UnEmbedBrowserObject");
// Get the address of the DisplayHTMLPagePtr() function
lpDisplayHTMLPage = (DisplayHTMLPagePtr
*)GetProcAddress((HINSTANCE)cwebdll, "DisplayHTMLPage");
// Get the address of the DisplayHTMLStr() function
lpDisplayHTMLStr = (DisplayHTMLStrPtr
*)GetProcAddress((HINSTANCE)cwebdll, "DisplayHTMLStr");
// Register the class of our window to host the browser.
'WindowProc' is our message handler
// and 'ClassName' is the class name. You can choose any class
name you want.
ZeroMemory(&wc, sizeof(WNDCLASSEX));
wc.cbSize = sizeof(WNDCLASSEX);
wc.hInstance = hInstance;
wc.lpfnWndProc = WindowProc;
wc.lpszClassName = &ClassName[0];
RegisterClassEx(&wc);
// Create another window with another browser object embedded in it.
if ((msg.hwnd = CreateWindowEx(0, &ClassName[0], "Emergency Alert
System", WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0,
HWND_DESKTOP, NULL, hInstance, 0)))
{
// For this window, display a URL. This could also be a HTML
file on disk such as "c:\\myfile.htm".
(*lpDisplayHTMLPage)(msg.hwnd, "http://www.google.com");
// Show the window.
ShowWindow(msg.hwnd, nCmdShow);
UpdateWindow(msg.hwnd);
}
// Do a message loop until WM_QUIT.
while (GetMessage(&msg, 0, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
// Free the DLL.
FreeLibrary(cwebdll);
return(0);
}
MessageBox(0, "Can't open cwebpage.dll! You are not protected by
Emergency Alerting System. Click OK to terminate this application.
Contact the developer, Scott Plunkett.", "ERROR", MB_OK);
return(-1);
}
It took this from an example tutorial I found, I have never done any
windows programming before so I had to figure out a quick solution.
I appreciate any and all help on this.