1 files changed, 312 insertions, 0 deletions

diff --git a/private/unimodem/modemui/dll.c b/private/unimodem/modemui/dll.c
new file mode 100644
index 000000000..8f6d47b36
--- /dev/null
+++ b/private/unimodem/modemui/dll.c
@@ -0,0 +1,312 @@
+//---------------------------------------------------------------------------
+//
+// Copyright (c) Microsoft Corporation 1993-1995
+//
+// File: dll.c
+//
+//  This file contains the library entry points 
+//
+// History:
+//  12-23-93 ScottH     Created
+//   9-22-95 ScottH     Ported to NT
+//
+//---------------------------------------------------------------------------
+
+
+#include "proj.h"         
+#include <rovdbg.h>         // debug assertion code
+
+// Global data
+//
+int g_cProcesses = 0;
+BOOL g_bAdminUser;
+
+
+#ifdef WIN32
+
+CRITICAL_SECTION g_csDll = { 0 };
+
+#endif  // WIN32
+
+
+/*----------------------------------------------------------
+Purpose: Initialize the DLL
+Returns: 
+Cond:    --
+*/
+BOOL PRIVATE Dll_Initialize(void)
+    {
+    BOOL bRet = TRUE;
+
+    InitCommonControls();
+
+    return bRet;
+    }
+
+
+/*----------------------------------------------------------
+Purpose: Register window classes per process
+Returns: 
+Cond:    --
+*/
+BOOL PRIVATE InitWindowClasses(
+    HINSTANCE hinst)
+    {
+    return TRUE;
+    }
+
+
+/*----------------------------------------------------------
+Purpose: Terminate DLL
+Returns: --
+Cond:    --
+*/
+BOOL PRIVATE Dll_Terminate(
+    HINSTANCE hinst)
+    {
+    return TRUE;
+    }
+
+
+/*----------------------------------------------------------
+Purpose: Unregister window classes per process
+Returns: 
+Cond:    --
+*/
+void PRIVATE TermWindowClasses(
+    HINSTANCE hinst)
+    {
+    }
+
+
+/*----------------------------------------------------------
+Purpose: Attach a process to this DLL
+Returns: --
+Cond:    --
+*/
+BOOL PRIVATE Dll_ProcessAttach(HINSTANCE hDll)
+    {
+    BOOL bSuccess = TRUE;
+
+#ifdef WIN32
+
+    if (g_cProcesses == 0)
+        {
+        InitializeCriticalSection(&g_csDll);
+#ifndef WIN95
+        g_bAdminUser = IsAdminUser();
+#endif  // WIN95
+        }
+
+#endif  // WIN32
+
+    if (bSuccess)
+        {
+            g_hinst = hDll;
+
+#ifdef DEBUG
+
+        // We do this simply to load the debug .ini flags
+        //
+        RovComm_ProcessIniFile();
+
+        TRACE_MSG(TF_GENERAL, "Process Attach [%d] (hDll = %lx)", g_cProcesses, hDll);
+        DEBUG_BREAK(BF_ONPROCESSATT);
+
+#endif
+
+        if (g_cProcesses++ == 0)
+            {
+            bSuccess = Dll_Initialize();
+            }
+
+        if (bSuccess)
+            {
+            // (Only do this if we succeeded above)
+            //
+            // Register the window classes again (they are per-process)
+            //
+            bSuccess = InitWindowClasses(hDll);
+            }
+        }
+
+    return bSuccess;
+    }
+
+
+/*----------------------------------------------------------
+Purpose: Detach a process from the DLL
+Returns: --
+Cond:    --
+*/
+BOOL PRIVATE Dll_ProcessDetach(HINSTANCE hDll)
+    {
+    BOOL bSuccess = TRUE;
+
+    ASSERT(hDll == g_hinst);
+
+    DEBUG_CODE( TRACE_MSG(TF_GENERAL, "Process Detach [%d] (hDll = %lx)", 
+        g_cProcesses-1, hDll); )
+
+    DEBUG_CODE( DEBUG_BREAK(BF_ONPROCESSDET); )
+
+    if (--g_cProcesses == 0)
+        {
+        bSuccess = Dll_Terminate(g_hinst);
+        }
+
+#ifdef WIN32
+
+    if (g_cProcesses == 0)
+        {
+        DeleteCriticalSection(&g_csDll);
+        }
+
+#endif  // WIN32
+
+    TermWindowClasses(hDll);
+
+    return bSuccess;
+    }
+
+
+//
+// Per-instance data
+//
+#pragma data_seg(DATASEG_PERINSTANCE)
+
+HINSTANCE g_hinst = 0;
+
+#pragma data_seg()
+
+
+// **************************************************************************
+// WIN32 specific code
+// **************************************************************************
+
+#ifdef WIN32
+
+#ifdef DEBUG
+BOOL g_bExclusive=FALSE;
+#endif
+
+
+/*----------------------------------------------------------
+Purpose: Enter an exclusive section
+Returns: --
+Cond:    --
+*/
+void PUBLIC Dll_EnterExclusive(void)
+    {
+    EnterCriticalSection(&g_csDll);
+
+#ifdef DEBUG
+    g_bExclusive = TRUE;
+#endif
+    }
+
+
+/*----------------------------------------------------------
+Purpose: Leave an exclusive section
+Returns: --
+Cond:    --
+*/
+void PUBLIC Dll_LeaveExclusive(void)
+    {
+#ifdef DEBUG
+    g_bExclusive = FALSE;
+#endif
+
+    LeaveCriticalSection(&g_csDll);
+    }
+
+
+/*----------------------------------------------------------
+Purpose: Win32 Libmain
+Returns: --
+Cond:    --
+*/
+BOOL APIENTRY LibMain(
+    HANDLE hDll, 
+    DWORD dwReason,  
+    LPVOID lpReserved)
+    {
+    switch(dwReason)
+        {
+    case DLL_PROCESS_ATTACH:
+        Dll_ProcessAttach(hDll);
+        break;
+
+    case DLL_PROCESS_DETACH:
+        Dll_ProcessDetach(hDll);
+        break;
+
+    case DLL_THREAD_ATTACH:
+
+#ifdef DEBUG
+
+        ENTER_X()
+            {
+            // We do this simply to load the debug .ini flags
+            //
+            RovComm_ProcessIniFile();
+
+            TRACE_MSG(TF_GENERAL, "Thread Attach [%d] (hDll = %lx)", 
+                      g_cProcesses, hDll);
+            }
+        LEAVE_X()
+
+        DEBUG_BREAK(BF_ONTHREADATT);
+
+#endif
+
+        break;
+
+    case DLL_THREAD_DETACH:
+
+#ifdef DEBUG
+
+        ENTER_X()
+            {
+            TRACE_MSG(TF_GENERAL, "Thread Detach [%d] (hDll = %lx)", 
+                g_cProcesses, hDll);
+            }
+        LEAVE_X()
+
+        DEBUG_BREAK(BF_ONTHREADDET);
+
+#endif
+
+        break;
+
+    default:
+        break;
+        } 
+    
+    return TRUE;
+    } 
+
+
+#else   // WIN32
+
+
+// **************************************************************************
+// WIN16 specific code
+// **************************************************************************
+
+
+BOOL CALLBACK LibMain(HINSTANCE hinst, UINT wDS, DWORD unused)
+    {
+    return Dll_ProcessAttach(hinst);
+    }
+
+BOOL CALLBACK WEP(BOOL fSystemExit)
+    {
+    return Dll_ProcessDetach(g_hinst);
+    }
+
+#endif  // WIN32
+
+
+
+