网络浏览器插件的高手请进。。。

/* 利用BHO做IE插件，这个挺有意思的，给大家分享 */
#define WAIT_TIME 2000
#define PictureH 109
#define PictureW 405
static UINT iTimeID = 0;
static int WINAPI ShowSplash(HINSTANCE hInstance, UINT iBgBmpHeight, UINT iBgBmpWidth);
static LRESULT CALLBACK SplashProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
extern "C"
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
{
TCHAR pszLoader[MAX_PATH];
LPSTR pstrFileName = NULL;
if (dwReason == DLL_PROCESS_ATTACH) {
// 得到当前调用者的名字，如：C:\Program Files\Internet Explorer\IEXPLORE.EXE
GetModuleFileName(NULL, pszLoader, MAX_PATH);
pstrFileName = strrchr(pszLoader, '\\');
if (pstrFileName == NULL) {
// 出错处理
// 空指针
return FALSE;
}
pstrFileName++;
// 判断是否是 IE,是则加载启动画面
if (lstrcmpi(pstrFileName, TEXT("IEXPLORE.EXE")) == NULL) {
// 加载启动画面
ShowSplash(hInstance, PictureH, PictureW);
}
_Module.Init(ObjectMap, hInstance, &LIBID_IESTARTLib);
DisableThreadLibraryCalls(hInstance);
}
else if (dwReason == DLL_PROCESS_DETACH) {
_Module.Term();
}
return TRUE; // ok
}
// IE 启动画面显示
int WINAPI ShowSplash(HINSTANCE hInstance, UINT iBgBmpHeight, UINT iBgBmpWidth)
{
HWND hSplashWnd = NULL;
MSG stMsg;
WNDCLASSEX stWndClassEx;
TCHAR szClassName[] = TEXT("LeXX_Splash_Wnd");
HCURSOR hMouseCursor =NULL;
HBRUSH hBgBrush = NULL;
HBITMAP hBgBmp = LoadBitmap(hInstance, MAKEINTRESOURCE(IDB_SPLASH));
if (hBgBmp == NULL) {
// 出错处理
// 导出位图出错
return 0;
}
hBgBrush = CreatePatternBrush(hBgBmp);
if (hBgBrush == NULL) {
// 出错处理
// 创建画刷出错
return 0;
}
hMouseCursor = LoadCursor(NULL, IDC_ARROW);
if (hMouseCursor == NULL) {
// 出错处理
// 导出光标错误
return 0;
}
stWndClassEx.cbSize = sizeof(WNDCLASSEX);
stWndClassEx.style = CS_HREDRAW | CS_VREDRAW;
stWndClassEx.lpfnWndProc = SplashProc;
stWndClassEx.cbClsExtra = NULL;
stWndClassEx.cbWndExtra = NULL;
stWndClassEx.hInstance = hInstance;
stWndClassEx.hbrBackground = hBgBrush;
stWndClassEx.lpszMenuName = NULL;
stWndClassEx.lpszClassName = szClassName;
stWndClassEx.hIcon = NULL;
stWndClassEx.hIconSm = NULL;
stWndClassEx.hCursor = hMouseCursor;
if (!RegisterClassEx(&stWndClassEx)) {
// 出错处理
// 无法注册窗口类
return 0;
}
// 使启动画面加载在屏幕正中
int iWndLeft = (GetSystemMetrics(SM_CXSCREEN) - iBgBmpWidth) / 2;
int iWndTop = (GetSystemMetrics(SM_CYSCREEN) - iBgBmpHeight) / 2;
hSplashWnd = CreateWindowEx(WS_EX_LEFT, szClassName, TEXT("Loading..."),
WS_POPUP, iWndLeft, iWndTop, iBgBmpWidth, iBgBmpHeight,
NULL,NULL,hInstance,NULL);
if (hSplashWnd == NULL) {
// 出错处理
// 无法创建窗口
return 0;
}
ShowWindow(hSplashWnd, SW_SHOWNORMAL);
UpdateWindow(hSplashWnd);
// 消息循环
while (GetMessage(&stMsg, NULL, 0, 0)) {
TranslateMessage(&stMsg);
DispatchMessage(&stMsg);
}
return stMsg.wParam;
}
LRESULT CALLBACK SplashProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg) {
case WM_CREATE:
// 定时器
iTimeID = SetTimer(hWnd, 1, WAIT_TIME,NULL);
return 0;
case WM_TIMER:
KillTimer(hWnd, iTimeID);
DestroyWindow(hWnd);
return 0;
case WM_DESTROY:
PostQuitMessage(NULL);
return 0;
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
//（注意其中 {EA1EFEA2-1051-4384-A81E-74DE2167EEDF} 只是笔者的 CLSID ,自己写时需做相应的改变）：
HKLM
{
SOFTWARE
{
Microsoft
{
Windows
{
CurrentVersion
{
Explorer
{
'Browser Helper Objects'
{
{EA1EFEA2-1051-4384-A81E-74DE2167EEDF}
}
}
}
}
}
}
}