模拟实现鼠标右键点击IE
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这个办法不好，帮顶下，学习

InvalidateRect(0,NULL,TRUE);

或者Invalidate(0,NULL,0);你都试试

我试过了，都不行，而且模拟按F5也不行，下面是刷新的代码，桌面闪一下，但网页内容还是不更新

      ::SHChangeNotify( SHCNE_ASSOCCHANGED , SHCNF_IDLIST | SHCNF_FLUSH, 0, 0);

     HWND hWndProgram = ::FindWindow( _T("Progman"), NULL);

     HWND hWndDefView = ::FindWindowEx( hWndProgram, NULL, _T("SHELLDLL_DefView"), NULL);

     HWND hWndListView= ::FindWindowEx( hWndDefView, NULL, _T("SysListView32"),     NULL);

     ::PostMessage( hWndListView, WM_KEYDOWN, VK_F5, 0);

     ::PostMessage( hWndListView, WM_KEYUP,    VK_F5, 0);

LZ在MSDN中输入IActiveDesktop看一下。

有必要模拟这么麻烦么？
试试InternetSetOption(NULL, INTERNET_OPTION_SETTINGS_CHANGED, NULL, 0));
来自#include <wininet.h> 和lib: wininet.lib

或者SystemParametersInfo API

试过了，还是不行，这两句也加上了，就是不刷新

SystemParametersInfo(SPI_SETWORKAREA,0,NULL,SPIF_SENDCHANGE); 
::SendMessage(HWND_BROADCAST,WM_SETTINGCHANGE,0,0); 

终于搞定了，把实现代码贴出来供大家参考，祝大家学习进步，少绕点弯儿，实现原理就是依靠 IActiveDesktop的成员方法

HRESULT   hr;
USES_CONVERSION;
IActiveDesktop *pActiveDesktop;
hr = CoCreateInstance(CLSID_ActiveDesktop,NULL,CLSCTX_INPROC_SERVER,IID_IActiveDesktop,(void**)&pActiveDesktop);
if(hr==S_OK){
COMPONENTSOPT opt;
opt.dwSize = sizeof(opt);
opt.fActiveDesktop =  opt.fEnableComponents = 0;
HRESULT hr = pActiveDesktop->SetDesktopItemOptions(&opt,0);

pActiveDesktop->ApplyChanges(AD_APPLY_REFRESH);
opt.fActiveDesktop =  opt.fEnableComponents = TRUE;
 hr = pActiveDesktop->SetDesktopItemOptions(&opt,0);
 WCHAR wszPath[MAX_PATH];
 CString strPath="c:\\a.html";
 LPTSTR lpStr = strPath.GetBuffer(strPath.GetLength());
 MultiByteToWideChar(CP_ACP, 0, lpStr, -1, wszPath, MAX_PATH);
 strPath.ReleaseBuffer();
 hr = pActiveDesktop->SetWallpaper(wszPath, 0);
  pActiveDesktop->ApplyChanges(AD_APPLY_ALL);
 pActiveDesktop->ApplyChanges(AD_APPLY_REFRESH);

}
pActiveDesktop->Release();