--- mstools/samples/ddeml/client/dialog.c	2018/08/09 18:21:24	1.1.1.2
+++ mstools/samples/ddeml/client/dialog.c	2018/08/09 18:25:39	1.1.1.4
@@ -1,3 +1,14 @@
+
+/******************************************************************************\
+*       This is a part of the Microsoft Source Code Samples.
+*       Copyright (C) 1993 Microsoft Corporation.
+*       All rights reserved.
+*       This source code is only intended as a supplement to
+*       Microsoft Development Tools and/or WinHelp documentation.
+*       See these sources for detailed information regarding the
+*       Microsoft samples programs.
+\******************************************************************************/
+
 /***************************************************************************
  *                                                                         *
  *  MODULE      : dialog.c                                                 *
@@ -155,7 +166,7 @@ LPARAM lParam)
                 // count the existing conversations and allocate aHwnd
 
                 cHwnd = 0;
-                hConv = NULL;
+                hConv = 0;
                 while (hConv = DdeQueryNextServer((HCONVLIST)pmci->hConv, hConv))
                     cHwnd++;
                 aHwnd = (HWND *)MyAlloc(cHwnd * sizeof(HWND));
@@ -163,7 +174,7 @@ LPARAM lParam)
                 // save all the old conversation windows into aHwnd.
 
                 pHwnd = aHwnd;
-                hConv = NULL;
+                hConv = 0;
                 while (hConv = DdeQueryNextServer((HCONVLIST)pmci->hConv, hConv)) {
                     DdeQueryConvInfo(hConv, QID_SYNC, &ci);
                     *pHwnd++ = (HWND)ci.hUser;
@@ -181,7 +192,7 @@ LPARAM lParam)
                 // fixup windows corresponding to the new conversations.
 
                 pmci->hConv = hConv;
-                hConv = NULL;
+                hConv = 0;
                 while (hConv = DdeQueryNextServer((HCONVLIST)pmci->hConv, hConv)) {
                     DdeQueryConvInfo(hConv, QID_SYNC, &ci);
                     // preserve corresponding window by setting its list
@@ -205,7 +216,7 @@ LPARAM lParam)
 
                 // create any new windows needed
 
-                hConv = NULL;
+                hConv = 0;
                 while (hConv = DdeQueryNextServer((HCONVLIST)pmci->hConv, hConv)) {
                     DdeQueryConvInfo(hConv, QID_SYNC, &ci);
                     if (ci.hUser) {
@@ -370,7 +381,7 @@ LPARAM lParam)
                 }
 
                 GetDlgItemText(hwnd, IDEF_ITEM, szT, MAX_NAME);
-                pxact->hszItem = DdeCreateStringHandle(idInst, szT, NULL);
+                pxact->hszItem = DdeCreateStringHandle(idInst, szT, 0);
 
                 pxact->hDdeData = 0;
                 /*
@@ -789,7 +800,7 @@ LPARAM lParam)
 
 
 BOOL  APIENTRY ContextDlgProc(
-HWND          hwnd,
+HWND hwnd,
 UINT msg,
 WPARAM wParam,
 LPARAM lParam)
@@ -803,6 +814,8 @@ LPARAM lParam)
         SetDlgItemInt(hwnd, IDEF_CODEPAGE, CCFilter.iCodePage, TRUE);
         SetDlgItemInt(hwnd, IDEF_LANG, CCFilter.dwLangID, FALSE);
         SetDlgItemInt(hwnd, IDEF_SECURITY, CCFilter.dwSecurity, FALSE);
+        CheckRadioButton(hwnd, IDRB_IL_ANON, IDRB_IL_DELEGATE,
+                IDRB_IL_ANON + (int)CCFilter.qos.ImpersonationLevel);
         return(1);
         break;
 
@@ -819,6 +832,15 @@ LPARAM lParam)
             if (!fSuccess) return(0);
             CCFilter.dwSecurity = (DWORD)GetDlgItemInt(hwnd, IDEF_SECURITY, &fSuccess, FALSE);
             if (!fSuccess) return(0);
+            if (IsDlgButtonChecked(hwnd, IDRB_IL_ANON)) {
+                CCFilter.qos.ImpersonationLevel = SecurityAnonymous;
+            } else if (IsDlgButtonChecked(hwnd, IDRB_IL_ID)) {
+                CCFilter.qos.ImpersonationLevel = SecurityIdentification;
+            } else if (IsDlgButtonChecked(hwnd, IDRB_IL_IMP)) {
+                CCFilter.qos.ImpersonationLevel = SecurityImpersonation;
+            } else if (IsDlgButtonChecked(hwnd, IDRB_IL_DELEGATE)) {
+                CCFilter.qos.ImpersonationLevel = SecurityDelegation;
+            }
             // fall through
         case IDCANCEL:
             EndDialog(hwnd, 0);
@@ -840,7 +862,7 @@ DWORD delay)
 
     delay = GetCurrentTime() + delay;
     while (GetCurrentTime() < delay) {
-        if (PeekMessage(&msg,NULL,NULL,NULL,PM_REMOVE)) {
+        if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) {
             TranslateMessage(&msg);
             DispatchMessage(&msg);
         }