服务程序如何显示窗口界面？

Question

rt

Answer 1

以前在VCBASE上看到的。在服务程序中开启一个对话框
BOOL CServiceModule::ShowMsgDlg()
{
    HDESK   hdeskCurrent;
    HDESK   hdesk;
    HWINSTA hwinstaCurrent;
    HWINSTA hwinsta;    hwinstaCurrent = GetProcessWindowStation();
    if (hwinstaCurrent == NULL){
LogEvent(_T("get window station err"));
       return FALSE;
}    hdeskCurrent = GetThreadDesktop(GetCurrentThreadId());
    if (hdeskCurrent == NULL){
LogEvent(_T("get window desktop err"));
       return FALSE;
}    hwinsta = OpenWindowStation("winsta0", FALSE,
                                  WINSTA_ACCESSCLIPBOARD   |
                                  WINSTA_ACCESSGLOBALATOMS |
                                  WINSTA_CREATEDESKTOP     |
                                  WINSTA_ENUMDESKTOPS      |
                                  WINSTA_ENUMERATE         |
                                  WINSTA_EXITWINDOWS       |
                                  WINSTA_READATTRIBUTES    |
                                  WINSTA_READSCREEN        |
                                  WINSTA_WRITEATTRIBUTES);
    if (hwinsta == NULL){
LogEvent(_T("open window station err"));       return FALSE;
}    if (!SetProcessWindowStation(hwinsta)){
LogEvent(_T("Set window station err"));       return FALSE;
}    hdesk = OpenDesktop("default", 0, FALSE,
                            DESKTOP_CREATEMENU |
DESKTOP_CREATEWINDOW |
                            DESKTOP_ENUMERATE    |
                            DESKTOP_HOOKCONTROL  |
                            DESKTOP_JOURNALPLAYBACK |
                            DESKTOP_JOURNALRECORD |
                            DESKTOP_READOBJECTS |
                            DESKTOP_SWITCHDESKTOP |
                            DESKTOP_WRITEOBJECTS);
if (hdesk == NULL){
LogEvent(_T("Open desktop err"));           return FALSE;
} SetThreadDesktop(hdesk); CMsgDlg dlgMsg;
dlgMsg.DoModal(); if (!SetProcessWindowStation(hwinstaCurrent))
           return FALSE; if (!SetThreadDesktop(hdeskCurrent))
      return FALSE; if (!CloseWindowStation(hwinsta))
return FALSE; if (!CloseDesktop(hdesk))
           return FALSE; return TRUE;
}