用ITaskbarList接口显示或隐藏窗口在任务栏上的按钮

void ShowInTaskbar(HWND m_hWnd,BOOL bshow)
{
//在app的InitInstance中加入::CoInitialize(NULL);
HRESULT hr;
ITaskbarList *pTaskbarList; hr=CoCreateInstance(CLSID_TaskbarList,NULL,CLSCTX_INPROC_SERVER,
IID_ITaskbarList,(void**)&pTaskbarList);

pTaskbarList->HrInit();
if(bshow){
pTaskbarList->AddTab(m_hWnd);
}
else{
pTaskbarList->DeleteTab(m_hWnd);
}
pTaskbarList->Release();
//在app的ExitInstance中加入::CoUninitialize();}