C++ Windows Credential Provider Progress Screen

Question

I am developing a custom credential provider and I have to show a progress screen with a cancel button. I have seen in some credentials providers and pgina plugins that a sc

Answer 1

@js.hrt Per your request.

class Thread  {
public:
    Thread(GUI* object);
    virtual ~Thread();
    bool start( bool )   {
    ::CreateThread( NULL, 0, threadRun, lpParameter, dwCreationFlags, 
         &m_dwThreadId );
    }
    static DWORD WINAPI threadRun( void* lpVoid )   {
        DWORD dwReturn( 0 );
        dwReturn = m_object->yourProcessToRun();
        return dwReturn;
     }
protected:
    GUI* m_object;
    Runnable* m_lpRunnable;

}; Then, class for your UI, similar to this

#include "atlwin.h"

class GUI: public CDialogImpl  {
public:
  enum { IDD = IDD_FOR_YOUR_DIALOG  };
  GUI();
 ~GUI();
  BEGIN_MSG_MAP(GUI)
      MESSAGE_HANDLER(WM_INITDIALOG,OnInitDialog)
      COMMAND_ID_HANDLER(ID_CANCEL,OnCancel)
      MESSAGE_HANDLER(WM_TIMER,OnTimer)
      MESSAGE_HANDLER(WM_DESTROY,OnDestroy)
  END_MSG_MAP()
  LRESULT OnInitDialog(UINT,WPARAM,LPARAM, BOOL&) {
      myThread = new Thread(this);
      m_nTimerID = SetTimer(1,3000,NULL);
      myThread->start();
  }
  LRESULT OnCancel(WORD,WORD,HWND,BOOL& )  {
      if(NULL != myThread)  {
         DWORD exitCode = 0;
         myThread->getExitCode(exitCode);
         if(exitCode == STILL_ACTIVE)
             myThread->terminate();
         delete myThread;
          myThread = NULL;
       }
       EndDialog(IDCANCEL);
       return true;
  }        
  LRESULT OnTimer(UINT,WPARAM wParam,LPARAM,BOOL&)  {
      if(wParam != m_nTimerID)
          return FALSE;
      m_timerticks++;
      return FALSE;
  }
  LRESULT OnDestroy(UINT,WPARAM,LPARAM,BOOL&)  {
      KillTimer(m_nTimerID);
      return FALSE;
  }
  virtual int yourProcessToRun() {};
  void onFinishProgress(int retCode = IDOK) {
      if (retCode != IDCANCEL)  {
          delete myThread;
          myThread = NULL;
          KillTimer(m_nTimerID);
          EndDialog(retCode);
       }
   }

  private:
      Thread* myThread;
       UINT    m_nTimerID;
       UINT    m_timerticks;

}; The resource for dialog could be like this:

IDD_FOR_YOUR_DIALOG DIALOGEX 0, 0, 309, 80
   STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | DS_CENTER | WS_POPUP 
   | WS_CAPTION
CAPTION "Whatever"
FONT 8, "MS Shell Dlg", 400, 0, 0x0
BEGIN
    PUSHBUTTON      "Cancel",ID_CANCEL,113,50,84,14
    CTEXT           "Static",IDC_FOR_SOMETHING,7,7,295,20
END