Remove identic implementations of wxDir::Exists from platform-specific files and...

[wxWidgets.git] / interface / wx / stream.h

diff --git a/interface/wx/stream.h b/interface/wx/stream.h
index 2cb6d47e6389f462f6cd53cb51627e978a7816b1..104af9a9689a1ae1e012f076c174e6159458d40d 100644 (file)
--- a/interface/wx/stream.h
+++ b/interface/wx/stream.h
@@ -76,7 +76,7 @@ public:
     virtual bool IsOk() const;
 
     /**
-        Returns @true if the streams supports seeking to arbitrary offsets.
+        Returns @true if the stream supports seeking to arbitrary offsets.
     */
     virtual bool IsSeekable() const;
 
@@ -172,8 +172,13 @@ public:
         and calling SetBufferIO() but is more convenient.
 
         @since 2.9.0
+
+        @param bufsize
+            The size of buffer in bytes.
+        @param stream
+            The associated input stream, the buffer will be used in read mode.
      */
-    wxStreamBuffer(wxInputStream& stream, size_t bufsize);
+    wxStreamBuffer(size_t bufsize, wxInputStream& stream);
 
     /**
         Constructor for an output buffer of the specified size.
@@ -182,8 +187,13 @@ public:
         and calling SetBufferIO() but is more convenient.
 
         @since 2.9.0
+
+        @param bufsize
+            The size of buffer in bytes.
+        @param stream
+            The associated output stream, the buffer will be used in write mode.
      */
-    wxStreamBuffer(wxOutputStream& stream, size_t bufsize);
+    wxStreamBuffer(size_t bufsize, wxOutputStream& stream);
 
     /**
         Constructor; creates a new empty stream buffer which won't flush any data
@@ -603,6 +613,11 @@ public:
     /**
         Changes the stream current position.
 
+        This operation in general is possible only for seekable streams 
+        (see wxStreamBase::IsSeekable()); non-seekable streams support only
+        seeking positive amounts in mode @c wxFromCurrent (this is implemented
+        by reading data and simply discarding it).
+
         @param pos
             Offset to seek to.
         @param mode
@@ -613,7 +628,9 @@ public:
     virtual wxFileOffset SeekI(wxFileOffset pos, wxSeekMode mode = wxFromStart);
 
     /**
-        Returns the current stream position.
+        Returns the current stream position or ::wxInvalidOffset if it's not
+        available (e.g. socket streams do not have a size nor a current stream
+        position).
     */
     virtual wxFileOffset TellI() const;
 
@@ -819,7 +836,7 @@ public:
         const wxFilterClassFactory *factory = wxFilterClassFactory::GetFirst();
 
         while (factory) {
-            list << factory->GetProtocol() << _T("\n");
+            list << factory->GetProtocol() << wxT("\n");
             factory = factory->GetNext();
         }
         @endcode
@@ -849,7 +866,7 @@ public:
         const wxChar *const *p;
 
         for (p = factory->GetProtocols(wxSTREAM_FILEEXT); *p; p++)
-            list << *p << _T("\n");
+            list << *p << wxT("\n");
         @endcode
     */
     virtual const wxChar * const* GetProtocols(wxStreamProtocolType type = wxSTREAM_PROTOCOL) const = 0;