/*功能：打印任何浏览器能打开的本地文件，并实现打印功能@sURL: 要打印的文件路径(只能打开本地文件)bug: 测试了下，如果网页有脚本错误或被浏览器拦截了插件，则打印出来的内容可能为空，不知道有什么好的解决办法吗？另外，对于网页上的页面无效果(不会打印出文件来)
*/
BOOL Print_html(const char *sURL)
{HRESULT hr;CLSID clsid;  IUnknown     *pUnknown = NULL;  IWebBrowser2 *pWebBrowser2 = NULL;  IOleCommandTarget* pCommandTarget = NULL;  IDispatch *pDispatch = NULL;VARIANT va;  OLECHAR sOleChar[MAX_PATH];  CoInitialize(NULL);  CLSIDFromProgID(L"InternetExplorer.Application", &clsid);  hr = CoCreateInstance(clsid, NULL, CLSCTX_ALL, IID_IUnknown, (void  **)&pUnknown);if (SUCCEEDED(hr))  {hr = pUnknown->QueryInterface(IID_IWebBrowser2, (void **)&pWebBrowser2);if (SUCCEEDED(hr)){  VariantInit(&va);  va.vt = VT_I4;  va.lVal = 0;  MultiByteToWideChar(CP_ACP, 0, sURL, -1, sOleChar, sizeof sOleChar);  BSTR bstrURL = SysAllocString(sOleChar);  hr = pWebBrowser2->Navigate(bstrURL, &va, &va, &va, &va);SysFreeString (bstrURL);hr = pWebBrowser2->get_Document(&pDispatch);if (SUCCEEDED(hr))  {  hr =  pDispatch->QueryInterface(IID_IOleCommandTarget,(void**)&pCommandTarget);  if (SUCCEEDED(hr))  {  hr = pCommandTarget->Exec(NULL, OLECMDID_PRINT, OLECMDEXECOPT_DONTPROMPTUSER, NULL, NULL);Sleep(2000);pCommandTarget->Release();}  else  {  pDispatch->Release();pWebBrowser2->Release();pUnknown->Release();  CoUninitialize();  return FALSE;}  pDispatch->Release();  }  else{  pWebBrowser2->Release();  pUnknown->Release();  CoUninitialize();  return FALSE;}  pWebBrowser2->Release();  }else{pUnknown->Release();  CoUninitialize();  return FALSE;}  pUnknown->Release();  }  else{CoUninitialize();  return FALSE;}CoUninitialize();  return TRUE;
}//是否打印页眉、页脚
//i_sign: 0-打印
//    1-不打印
BOOL Print_header_footer(int i_sign)
{const int KEY_LEN = 100;char lp_header[KEY_LEN];char lp_footer[KEY_LEN];char *str_keyname = "Software\\Microsoft\\Internet Explorer\\PageSetup\\";HKEY hKey;int err;if(RegOpenKeyEx(HKEY_CURRENT_USER,str_keyname,0,KEY_WRITE,&hKey) != ERROR_SUCCESS){err = GetLastError();return FALSE;}if(i_sign == 0){memset(lp_header,0,sizeof(lp_header));memset(lp_footer,0,sizeof(lp_footer));strcpy(lp_header,"&w&b页码，&p/&P"); //"&w&b页码，&p/&P";strcpy(lp_footer,"&u&b&d");    //"&u&b&d";if(RegSetValueEx(hKey, "header", 0, REG_SZ, (const unsigned char *)lp_header, strlen(lp_header))!=ERROR_SUCCESS){RegCloseKey(hKey);return FALSE;}if(RegSetValueEx(hKey, "footer", 0, REG_SZ, (const unsigned char *)lp_footer, strlen(lp_footer))!=ERROR_SUCCESS){RegCloseKey(hKey);return FALSE;}RegCloseKey(hKey);return TRUE;}if(i_sign == 1){memset(lp_header,0,sizeof(lp_header));memset(lp_footer,0,sizeof(lp_footer));if(RegSetValueEx(hKey, "header", 0, REG_SZ, (const unsigned char *)lp_header, strlen(lp_header))!=ERROR_SUCCESS){RegCloseKey(hKey);return FALSE;}if(RegSetValueEx(hKey, "footer", 0, REG_SZ, (const unsigned char *)lp_footer, strlen(lp_footer))!=ERROR_SUCCESS){RegCloseKey(hKey);return FALSE;}RegCloseKey(hKey);return TRUE;}return TRUE;
}