Winlogon using Mobile Disk

#include "windows.h"
#include "resource.h"
#include "Dbt.h"
#include "..\UserInfo.h"

extern char g_lpUserName[30], g_lpPassword[30], g_lpDomain[100];
extern int g_nLoginType;

void SystemLog(const char *msg);

VOID CenterWindow( HWND    hwnd )
{
    RECT    rect;
    LONG    dx, dy;
    LONG    dxParent, dyParent;
    LONG    Style;

    // Get window rect
    GetWindowRect(hwnd, &rect);

    dx = rect.right - rect.left;
    dy = rect.bottom - rect.top;

    // Get parent rect
    Style = GetWindowLong(hwnd, GWL_STYLE);
    if ((Style & WS_CHILD) == 0) {

        // Return the desktop windows size (size of main screen)
        dxParent = GetSystemMetrics(SM_CXSCREEN);
        dyParent = GetSystemMetrics(SM_CYSCREEN);
    } else {
        HWND    hwndParent;
        RECT    rectParent;

        hwndParent = GetParent(hwnd);
        if (hwndParent == NULL) {
            hwndParent = GetDesktopWindow();
        }

        GetWindowRect(hwndParent, &rectParent);

        dxParent = rectParent.right - rectParent.left;
        dyParent = rectParent.bottom - rectParent.top;
    }

    // Centre the child in the parent
    rect.left = (dxParent - dx) / 2;
    rect.top  = (dyParent - dy) / 3;

    // Move the child into position
    SetWindowPos(hwnd, HWND_TOPMOST, rect.left, rect.top, 0, 0, SWP_NOSIZE);

    SetForegroundWindow(hwnd);
}

int CALLBACK DisplaySASNoticeDlgProc(
    HWND    hDlg,
    UINT    Message,
    WPARAM  wParam,
    LPARAM  lParam)
{

	PDEV_BROADCAST_HDR pheadBC;
	PDEV_BROADCAST_VOLUME pVol;


	HWND hMsg=GetDlgItem(hDlg,IDC_STATUS_STATIC);

	CUserInfo ui;
	int drv;
	char lpPath[255];
//    pGlobals = (PGlobals) GetWindowLong(hDlg, GWL_USERDATA);
    switch (Message)
    {
        case WM_INITDIALOG:
            CenterWindow(hDlg);
				

				drv=ui.ValidDiskPresent();
						
				if(drv)
				{
					sprintf(lpPath,"%c:\\%s",'A'+drv,DISK_FILE_NAME);

					USER_INFO user_info=ui.LoadUserInfo(lpPath);
					user_info=ui.Decode(user_info);

					strcpy(g_lpUserName,user_info.lpWindowsUser);
					strcpy(g_lpPassword,user_info.lpWindowsPassword);
					
					if(strlen(user_info.lpDomain))
						strcpy(g_lpDomain,user_info.lpDomain);
					else
					{
						strcpy(g_lpDomain,".");
					}

					g_nLoginType=user_info.dwLogonType;

					EndDialog(hDlg, IDC_LOGON_BUTTON);
				}
            return(TRUE);

        case WM_COMMAND:

			if (LOWORD(wParam) == IDOK)
            {
                //EndDialog(hDlg, IDCANCEL);
            }
            
			if (LOWORD(wParam) == IDCANCEL)
            {
                //EndDialog(hDlg, IDCANCEL);
            }

			if(LOWORD(wParam)==IDC_SHUT_DOWN_STATIC)
			{
				EndDialog(hDlg, IDCANCEL);
			}
            return(TRUE);

		case WM_DEVICECHANGE:
			Sleep(2000);

			pheadBC=(PDEV_BROADCAST_HDR)lParam;

			if(wParam==DBT_DEVICEARRIVAL && pheadBC->dbch_devicetype==DBT_DEVTYP_VOLUME)
			{
				pVol=(PDEV_BROADCAST_VOLUME)lParam;

				drv=ui.ValidDiskPresent();
				lpPath[255];
		
				if(drv)
				{
					sprintf(lpPath,"%c:\\%s",'A'+drv,DISK_FILE_NAME);

					USER_INFO user_info=ui.LoadUserInfo(lpPath);
					user_info=ui.Decode(user_info);

					strcpy(g_lpUserName,user_info.lpWindowsUser);
					strcpy(g_lpPassword,user_info.lpWindowsPassword);
					if(strlen(user_info.lpDomain))
						strcpy(g_lpDomain,user_info.lpDomain);
					else
					{
						strcpy(g_lpDomain,".");
					}

					g_nLoginType=user_info.dwLogonType;


					EndDialog(hDlg, IDC_LOGON_BUTTON);
				}
				else
				{
					//SetDlgItemText(hDlg,IDC_STATUS_STATIC,"");
				}
				//

			}
			
			break;
    }
    return(FALSE);
}



int CALLBACK UpdateWindowsUserDlgProc(
    HWND    hDlg,
    UINT    Message,
    WPARAM  wParam,
    LPARAM  lParam)
{

	char lpUserName[100], lpPassword[100];

	HWND hWnd=GetDlgItem(hDlg,IDC_DOMAIN_COMBO); 

//    pGlobals = (PGlobals) GetWindowLong(hDlg, GWL_USERDATA);
    switch (Message)
    {
        case WM_INITDIALOG:
            CenterWindow(hDlg);
			SendMessage(hWnd,CB_INSERTSTRING,(WPARAM) 0, (LPARAM)"This Computer");

			SendMessage(hWnd, CB_SETCURSEL, (WPARAM)0 ,(LPARAM)0);

            //SetWindowLong(hDlg, GWL_USERDATA, lParam);

            return(TRUE);

        case WM_COMMAND:

			if (LOWORD(wParam) == IDOK)
            {
				GetDlgItemText(hDlg,IDC_USER_EDIT,lpUserName,99);
				GetDlgItemText(hDlg,IDC_PASSWORD_EDIT,lpPassword,99);

				strcpy(g_lpUserName, lpUserName);
				strcpy(g_lpPassword, lpPassword);




				EndDialog(hDlg, IDOK);
            }
            
			if (LOWORD(wParam) == IDCANCEL)
            {
                //EndDialog(hDlg, IDCANCEL);
            }
            return(TRUE);
			
			break;
    }
    return(FALSE);
}