Desktop API 笔记

//枚举所有桌面
BOOL EnumDesktops(  HWINSTA hwinsta,  DESKTOPENUMPROC lpEnumFunc,  LPARAM lParam);

//打开获取用户输入的桌面窗口
HDESK OpenInputDesktop( DWORD dwFlags, BOOL fInherit, ACCESS_MASK dwDesiredAccess );
如：HDESK  hOriginalDesk = ::OpenInputDesktop( 0,  FALSE,  DESKTOP_SWITCHDESKTOP );

//创建桌面窗口
HDESK CreateDesktop( LPCTSTR lpszDesktop, LPCTSTR lpszDevice, LPDEVMODE pDevmode, DWORD dwFlags, ACCESS_MASK dwDesiredAccess, LPSECURITY_ATTRIBUTES lpsa );
如:HDESK  hDesk = ::CreateDesktop( _T("NewDesk"), NULL, NULL, 0,  GENERIC_ALL,  NULL );

//切换到指定桌面窗口
BOOL SwitchDesktop( HDESK hDesktop );

//打开桌面窗口
HDESK OpenDesktop( LPTSTR lpszDesktop, DWORD dwFlags, BOOL fInherit, ACCESS_MASK dwDesiredAccess );

//关闭桌面窗口句柄
BOOL CloseDesktop( HDESK hDesktop );

//为当前的线程指定特定的运行桌面
BOOL SetThreadDesktop( HDESK hDesktop );

//获取指定线程的运行桌面
HDESK GetThreadDesktop( DWORD dwThreadId );

PS: 创建一个新的桌面后，应调用Windows程序userinit.exe来初始化桌面,这样才会出现任务栏桌面ListView等元素:
BOOL  InitDeskTop( LPTSTR lpszDeskName  )
{
 BOOL  bRet = FALSE;

 DWORD dwExitCode;
 STARTUPINFO si;
 PROCESS_INFORMATION pi;
 ZeroMemory( &si, sizeof(si) );
 si.cb       = sizeof(si);
 si.dwFlags  = STARTF_USESHOWWINDOW;
 si.wShowWindow = SW_SHOWMAXIMIZED;
 si.lpDesktop = lpszDeskName;
 ZeroMemory( &pi, sizeof(pi) );
 bRet   =  ::CreateProcess( NULL, _T("userinit.exe"), NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi );         

 bRet   =  ::GetExitCodeProcess( pi.hProcess,&dwExitCode );

 return bRet;
}