Deprecate wxDC::{Begin,End}Drawing()

[wxWidgets.git] / src / msw / utils.cpp

diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index 6bf3dfd69b6b55ab28cdeffb14bc825512f52139..45f268a5107e2ecba6d7ca17465326b2a8499100 100644 (file)
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        msw/utils.cpp
+// Name:        src/msw/utils.cpp

 // Purpose:     Various utilities
 // Author:      Julian Smart
 // Modified by:
 // Purpose:     Various utilities
 // Author:      Julian Smart
 // Modified by:


@@ -31,9 +31,11 @@
     #include "wx/log.h"
 #endif  //WX_PRECOMP
 
     #include "wx/log.h"
 #endif  //WX_PRECOMP
 

+#include "wx/msw/registry.h"

 #include "wx/apptrait.h"
 #include "wx/dynlib.h"
 #include "wx/dynload.h"
 #include "wx/apptrait.h"
 #include "wx/dynlib.h"
 #include "wx/dynload.h"

+#include "wx/scopeguard.h"

 
 #include "wx/confbase.h"        // for wxExpandEnvVars()
 
 
 #include "wx/confbase.h"        // for wxExpandEnvVars()
 


@@ -109,8 +111,13 @@
 // ----------------------------------------------------------------------------
 
 // In the WIN.INI file
 // ----------------------------------------------------------------------------
 
 // In the WIN.INI file

+#if (!defined(USE_NET_API) && !defined(__WXWINCE__)) || defined(__WXMICROWIN__)

 static const wxChar WX_SECTION[] = wxT("wxWindows");
 static const wxChar WX_SECTION[] = wxT("wxWindows");

+#endif
+
+#if (!defined(USE_NET_API) && !defined(__WXWINCE__))

 static const wxChar eUSERNAME[]  = wxT("UserName");
 static const wxChar eUSERNAME[]  = wxT("UserName");

+#endif

 
 // ============================================================================
 // implementation
 
 // ============================================================================
 // implementation


@@ -121,12 +128,11 @@ static const wxChar eUSERNAME[]  = wxT("UserName");
 // ----------------------------------------------------------------------------
 
 // Get hostname only (without domain name)
 // ----------------------------------------------------------------------------
 
 // Get hostname only (without domain name)

-bool wxGetHostName(wxChar *buf, int maxSize)
+bool wxGetHostName(wxChar *WXUNUSED_IN_WINCE(buf),
+                   int WXUNUSED_IN_WINCE(maxSize))

 {
 #if defined(__WXWINCE__)
     // TODO-CE
 {
 #if defined(__WXWINCE__)
     // TODO-CE

-    wxUnusedVar(buf);
-    wxUnusedVar(maxSize);

     return false;
 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
     DWORD nSize = maxSize;
     return false;
 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
     DWORD nSize = maxSize;


@@ -236,12 +242,11 @@ bool wxGetFullHostName(wxChar *buf, int maxSize)
 }
 
 // Get user ID e.g. jacs
 }
 
 // Get user ID e.g. jacs

-bool wxGetUserId(wxChar *buf, int maxSize)
+bool wxGetUserId(wxChar *WXUNUSED_IN_WINCE(buf),
+                 int WXUNUSED_IN_WINCE(maxSize))

 {
 #if defined(__WXWINCE__)
     // TODO-CE
 {
 #if defined(__WXWINCE__)
     // TODO-CE

-    wxUnusedVar(buf);
-    wxUnusedVar(maxSize);

     return false;
 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
     DWORD nSize = maxSize;
     return false;
 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
     DWORD nSize = maxSize;


@@ -263,8 +268,8 @@ bool wxGetUserId(wxChar *buf, int maxSize)
 
     // Can't assume we have NIS (PC-NFS) or some other ID daemon
     // So we ...
 
     // Can't assume we have NIS (PC-NFS) or some other ID daemon
     // So we ...

-    if (  (user = wxGetenv(wxT("USER"))) == NULL &&
-            (user = wxGetenv(wxT("LOGNAME"))) == NULL )
+    if ( (user = wxGetenv(wxT("USER"))) == NULL &&
+         (user = wxGetenv(wxT("LOGNAME"))) == NULL )

     {
         // Use wxWidgets configuration data (comming soon)
         GetProfileString(WX_SECTION, eUSERID, default_id, buf, maxSize - 1);
     {
         // Use wxWidgets configuration data (comming soon)
         GetProfileString(WX_SECTION, eUSERID, default_id, buf, maxSize - 1);


@@ -281,11 +286,19 @@ bool wxGetUserId(wxChar *buf, int maxSize)
 // Get user name e.g. Julian Smart
 bool wxGetUserName(wxChar *buf, int maxSize)
 {
 // Get user name e.g. Julian Smart
 bool wxGetUserName(wxChar *buf, int maxSize)
 {

+    wxCHECK_MSG( buf && ( maxSize > 0 ), false,
+                    _T("empty buffer in wxGetUserName") );

 #if defined(__WXWINCE__)
 #if defined(__WXWINCE__)

-    // TODO-CE
-    wxUnusedVar(buf);
-    wxUnusedVar(maxSize);
-    return false;
+    wxLogNull noLog;
+    wxRegKey key(wxRegKey::HKCU, wxT("ControlPanel\\Owner"));
+    if(!key.Open(wxRegKey::Read))
+        return false;
+    wxString name;
+    if(!key.QueryValue(wxT("Owner"),name))
+        return false;
+    wxStrncpy(buf, name.c_str(), maxSize-1);
+    buf[maxSize-1] = _T('\0');
+    return true;

 #elif defined(USE_NET_API)
     CHAR szUserName[256];
     if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) )
 #elif defined(USE_NET_API)
     CHAR szUserName[256];
     if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) )


@@ -466,13 +479,12 @@ wxChar *wxGetUserHome(const wxString& WXUNUSED(user))
     return (wxChar *)wxGetHomeDir(&s_home);
 }
 
     return (wxChar *)wxGetHomeDir(&s_home);
 }
 

-bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
+bool wxGetDiskSpace(const wxString& WXUNUSED_IN_WINCE(path),
+                    wxLongLong *WXUNUSED_IN_WINCE(pTotal),
+                    wxLongLong *WXUNUSED_IN_WINCE(pFree))

 {
 #ifdef __WXWINCE__
     // TODO-CE
 {
 #ifdef __WXWINCE__
     // TODO-CE

-    wxUnusedVar(path);
-    wxUnusedVar(pTotal);
-    wxUnusedVar(pFree);

     return false;
 #else
     if ( path.empty() )
     return false;
 #else
     if ( path.empty() )


@@ -582,12 +594,11 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
 // env vars
 // ----------------------------------------------------------------------------
 
 // env vars
 // ----------------------------------------------------------------------------
 

-bool wxGetEnv(const wxString& var, wxString *value)
+bool wxGetEnv(const wxString& WXUNUSED_IN_WINCE(var),
+              wxString *WXUNUSED_IN_WINCE(value))

 {
 #ifdef __WXWINCE__
     // no environment variables under CE
 {
 #ifdef __WXWINCE__
     // no environment variables under CE

-    wxUnusedVar(var);
-    wxUnusedVar(value);

     return false;
 #else // Win32
     // first get the size of the buffer
     return false;
 #else // Win32
     // first get the size of the buffer


@@ -608,11 +619,15 @@ bool wxGetEnv(const wxString& var, wxString *value)
 #endif // WinCE/32
 }
 
 #endif // WinCE/32
 }
 

-bool wxSetEnv(const wxString& var, const wxChar *value)
+bool wxSetEnv(const wxString& WXUNUSED_IN_WINCE(var),
+              const wxChar *WXUNUSED_IN_WINCE(value))

 {
     // some compilers have putenv() or _putenv() or _wputenv() but it's better
     // to always use Win32 function directly instead of dealing with them
 {
     // some compilers have putenv() or _putenv() or _wputenv() but it's better
     // to always use Win32 function directly instead of dealing with them

-#if defined(__WIN32__) && !defined(__WXWINCE__)
+#ifdef __WXWINCE__
+    // no environment variables under CE
+    return false;
+#else

     if ( !::SetEnvironmentVariable(var, value) )
     {
         wxLogLastError(_T("SetEnvironmentVariable"));
     if ( !::SetEnvironmentVariable(var, value) )
     {
         wxLogLastError(_T("SetEnvironmentVariable"));


@@ -621,11 +636,6 @@ bool wxSetEnv(const wxString& var, const wxChar *value)
     }
 
     return true;
     }
 
     return true;

-#else // no way to set env vars
-    // no environment variables under CE
-    wxUnusedVar(var);
-    wxUnusedVar(value);
-    return false;

 #endif
 }
 
 #endif
 }
 


@@ -685,19 +695,19 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
     {
         if ( krc )
         {
     {
         if ( krc )
         {

-            if ( ::GetLastError() == ERROR_ACCESS_DENIED )
-            {
-                *krc = wxKILL_ACCESS_DENIED;
-            }
-            else
-            {
-                *krc = wxKILL_NO_PROCESS;
-            }
+            // recognize wxKILL_ACCESS_DENIED as special because this doesn't
+            // mean that the process doesn't exist and this is important for
+            // wxProcess::Exists()
+            *krc = ::GetLastError() == ERROR_ACCESS_DENIED
+                        ? wxKILL_ACCESS_DENIED
+                        : wxKILL_NO_PROCESS;

         }
 
         return -1;
     }
 
         }
 
         return -1;
     }
 

+    wxON_BLOCK_EXIT1(::CloseHandle, hProcess);
+

     bool ok = true;
     switch ( sig )
     {
     bool ok = true;
     switch ( sig )
     {


@@ -720,7 +730,9 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
 
         case wxSIGNONE:
             // do nothing, we just want to test for process existence
 
         case wxSIGNONE:
             // do nothing, we just want to test for process existence

-            break;
+            if ( krc )
+                *krc = wxKILL_OK;
+            return 0;

 
         default:
             // any other signal means "terminate"
 
         default:
             // any other signal means "terminate"


@@ -757,9 +769,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
                 else // no windows for this PID
                 {
                     if ( krc )
                 else // no windows for this PID
                 {
                     if ( krc )

-                    {

                         *krc = wxKILL_ERROR;
                         *krc = wxKILL_ERROR;

-                    }

 
                     ok = false;
                 }
 
                     ok = false;
                 }


@@ -767,8 +777,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
     }
 
     // the return code
     }
 
     // the return code

-    DWORD rc;
-
+    DWORD rc wxDUMMY_INITIALIZE(0);

     if ( ok )
     {
         // as we wait for a short time, we can use just WaitForSingleObject()
     if ( ok )
     {
         // as we wait for a short time, we can use just WaitForSingleObject()


@@ -793,45 +802,30 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
 
             case WAIT_TIMEOUT:
                 if ( krc )
 
             case WAIT_TIMEOUT:
                 if ( krc )

-                {

                     *krc = wxKILL_ERROR;
                     *krc = wxKILL_ERROR;

-                }

 
                 rc = STILL_ACTIVE;
                 break;
         }
     }
 
                 rc = STILL_ACTIVE;
                 break;
         }
     }

-    else // !ok
-    {
-        // just to suppress the warnings about uninitialized variable
-        rc = 0;
-    }

 
 

-    ::CloseHandle(hProcess);

 
     // the return code is the same as from Unix kill(): 0 if killed
     // successfully or -1 on error
 
     // the return code is the same as from Unix kill(): 0 if killed
     // successfully or -1 on error

-    //
-    // be careful to interpret rc correctly: for wxSIGNONE we return success if
-    // the process exists, for all the other sig values -- if it doesn't
-    if ( ok &&
-            ((sig == wxSIGNONE) == (rc == STILL_ACTIVE)) )
-    {
-        if ( krc )
-        {
-            *krc = wxKILL_OK;
-        }
+    if ( !ok || rc == STILL_ACTIVE )
+        return -1;

 
 

-        return 0;
-    }
+    if ( krc )
+        *krc = wxKILL_OK;

 
 

-    // error
-    return -1;
+    return 0;

 }
 
 }
 

-HANDLE (WINAPI *lpfCreateToolhelp32Snapshot)(DWORD,DWORD) ;
-BOOL (WINAPI *lpfProcess32First)(HANDLE,LPPROCESSENTRY32) ;
-BOOL (WINAPI *lpfProcess32Next)(HANDLE,LPPROCESSENTRY32) ;
+typedef HANDLE (WINAPI *CreateToolhelp32Snapshot_t)(DWORD,DWORD);
+typedef BOOL (WINAPI *Process32_t)(HANDLE,LPPROCESSENTRY32);
+
+CreateToolhelp32Snapshot_t lpfCreateToolhelp32Snapshot;
+Process32_t lpfProcess32First, lpfProcess32Next;

 
 static void InitToolHelp32()
 {
 
 static void InitToolHelp32()
 {


@@ -846,9 +840,9 @@ static void InitToolHelp32()
     lpfProcess32First = NULL;
     lpfProcess32Next = NULL;
 
     lpfProcess32First = NULL;
     lpfProcess32Next = NULL;
 

-    HINSTANCE hInstLib = LoadLibrary( wxT("Kernel32.DLL") ) ;
-    if( hInstLib == NULL )
-        return ;
+#if wxUSE_DYNLIB_CLASS
+
+    wxDynamicLibrary dllKernel(_T("kernel32.dll"), wxDL_VERBATIM);

 
     // Get procedure addresses.
     // We are linking to these functions of Kernel32
 
     // Get procedure addresses.
     // We are linking to these functions of Kernel32


@@ -856,37 +850,16 @@ static void InitToolHelp32()
     // this code would fail to load under Windows NT,
     // which does not have the Toolhelp32
     // functions in the Kernel 32.
     // this code would fail to load under Windows NT,
     // which does not have the Toolhelp32
     // functions in the Kernel 32.

-    lpfCreateToolhelp32Snapshot=
-        (HANDLE(WINAPI *)(DWORD,DWORD))
-        GetProcAddress( hInstLib,
-#ifdef __WXWINCE__
-        wxT("CreateToolhelp32Snapshot")
-#else
-        "CreateToolhelp32Snapshot"
-#endif
-        ) ;
+    lpfCreateToolhelp32Snapshot =
+        (CreateToolhelp32Snapshot_t)dllKernel.RawGetSymbol(_T("CreateToolhelp32Snapshot"));

 
 

-    lpfProcess32First=
-        (BOOL(WINAPI *)(HANDLE,LPPROCESSENTRY32))
-        GetProcAddress( hInstLib,
-#ifdef __WXWINCE__
-        wxT("Process32First")
-#else
-        "Process32First"
-#endif
-        ) ;
+    lpfProcess32First =
+        (Process32_t)dllKernel.RawGetSymbol(_T("Process32First"));

 
 

-    lpfProcess32Next=
-        (BOOL(WINAPI *)(HANDLE,LPPROCESSENTRY32))
-        GetProcAddress( hInstLib,
-#ifdef __WXWINCE__
-        wxT("Process32Next")
-#else
-        "Process32Next"
-#endif
-        ) ;
+    lpfProcess32Next =
+        (Process32_t)dllKernel.RawGetSymbol(_T("Process32Next"));

 
 

-    FreeLibrary( hInstLib ) ;
+#endif // wxUSE_DYNLIB_CLASS

 }
 
 // By John Skiff
 }
 
 // By John Skiff


@@ -963,11 +936,10 @@ bool wxShell(const wxString& command)
 }
 
 // Shutdown or reboot the PC
 }
 
 // Shutdown or reboot the PC

-bool wxShutdown(wxShutdownFlags wFlags)
+bool wxShutdown(wxShutdownFlags WXUNUSED_IN_WINCE(wFlags))

 {
 #ifdef __WXWINCE__
     // TODO-CE
 {
 #ifdef __WXWINCE__
     // TODO-CE

-    wxUnusedVar(wFlags);

     return false;
 #elif defined(__WIN32__)
     bool bOK = true;
     return false;
 #elif defined(__WIN32__)
     bool bOK = true;


@@ -1587,4 +1559,3 @@ wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc)
 
     return hwnd;
 }
 
     return hwnd;
 }

-