GINA logon dialog not in focus/active

Question

I have created a DLL to replace GINA. When I call WlxDialogBoxParam to display my own logon dialog, the dialog does not get active. What am I doing wrong? I have tried o call SetActiveWindow on the WM_INITDIALOG event, but that did not seem to help.

I call the WlxDialogBoxParam with the following parameters:

WlxDialogBoxParam(hWlx, GetMyInstance(), MAKEINTRESOURCE(IDD_LOGON), 0, DialogProc, (LPARAM)this);

where DialogProc is defined as follows: Code:

INT_PTR DialogProc(UINT msg, WPARAM wp, LPARAM lp) {
switch (msg) {
    case WM_INITDIALOG:
         SetFocus (GetDlgItem(_hwnd, IDC_NAME));
         return FALSE;
    case WM_COMMAND: {
        switch (LOWORD(wp)) {
            case IDOK:
                EndDialog(_hwnd, IDOK);
                break;

     case IDCANCEL:
                EndDialog(_hwnd, IDCANCEL);
                break;
        }
        return TRUE;
    }
}
return FALSE;

}