documented VFS handlers

[wxWidgets.git] / docs / latex / wx / inputstr.tex

diff --git a/docs/latex/wx/inputstr.tex b/docs/latex/wx/inputstr.tex
index 9edd5d824a911d2b514d629efc55f8aedd913b9a..1df6d394dc92533b4a23621ea18d60fa72ef75ff 100644 (file)
--- a/docs/latex/wx/inputstr.tex
+++ b/docs/latex/wx/inputstr.tex
@@ -3,6 +3,8 @@
 % -----------------------------------------------------------------------------
 \section{\class{wxInputStream}}\label{wxinputstream}
 
+wxInputStream is an abstract base class which may not be used directly.
+
 \wxheading{Derived from}
 
 \helpref{wxStreamBase}{wxstreambase}
@@ -48,7 +50,7 @@ Returns the first character in the input queue without removing it.
 
 \func{wxInputStream\&}{Read}{\param{void *}{buffer}, \param{size\_t}{ size}}
 
-Reads the specified amount of bytes and stores the data in \it{buffer}.
+Reads the specified amount of bytes and stores the data in {\it buffer}.
 
 \wxheading{Warning}
 
@@ -85,12 +87,17 @@ Returns the current stream position.
 
 \func{size\_t}{Ungetch}{\param{const char*}{ buffer}, \param{size\_t}{ size}}
 
-This function is only useful in \it{read} mode. It is the manager of the "Write-Back"
+This function is only useful in {\it read} mode. It is the manager of the "Write-Back"
 buffer. This buffer acts like a temporary buffer where datas which has to be
 read during the next read IO call are put. This is useful when you get a big
 block of data which you didn't want to read: you can replace them at the top
 of the input queue by this way.
 
+Be very careful about this call in connection with calling SeekI() on the same
+stream. Any call to SeekI() will invalidate any previous call to this method
+(otherwise you could SeekI() to one position, "unread" a few bytes there, SeekI()
+to another position and data would be either lost or corrupted).
+
 \wxheading{Return value}
 
 Returns the amount of bytes saved in the Write-Back buffer.