首先，让我明白我的观点：
这是一个紧急警报系统，它来自我们在后台操作的网站，程序可以最小化但不能关闭（很容易，至少没有人会知道如何使用它）。如您所见，如果程序关闭，则不会看到/听到紧急警报......这是一个问题。我必须在 200 多台计算机上部署此应用程序，因此我希望它简单，我不想创建计划任务等以保持其运行。我只是希望它不容易关闭。
请参阅我的代码，如下：
/* 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);
}
它来自我发现的一个示例教程，我以前从未做过任何 Windows 编程，所以我必须想出一个快速的解决方案。
我很感激这方面的任何帮助。