minor docs fixes

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10641 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/window.tex

@@ -2422,12 +2422,13 @@ See \helpref{Window styles}{windowstyles} for more information about flags.
 
 \func{virtual bool}{Show}{\param{bool}{ show}}
 
-Shows or hides the window.
+Shows or hides the window. You may need to call \helpref{Raise}{wxwindowraise} 
+for a top level window if you want to bring it to top, although this is not
+needed if Show() is called immediately after the frame creation.
 
 \wxheading{Parameters}
 
-\docparam{show}{If TRUE, displays the window and brings it to the front. Otherwise,
-hides the window.}
+\docparam{show}{If TRUE displays the window. Otherwise, hides it.}
 
 \wxheading{See also}
 

docs/latex/wx/wxstring.tex

@@ -673,25 +673,25 @@ Returns the index of the first item matched, or NOT\_FOUND.
 
 \constfunc{bool}{IsAscii}{\void}
 
-Returns TRUE if the string is ASCII.
+Returns TRUE if the string contains only ASCII characters.
 
 \membersection{wxString::IsEmpty}\label{wxstringisempty}
 
 \constfunc{bool}{IsEmpty}{\void}
 
-Returns TRUE if the string is NULL.
+Returns TRUE if the string is empty.
 
 \membersection{wxString::IsNull}\label{wxstringisnull}
 
 \constfunc{bool}{IsNull}{\void}
 
-Returns TRUE if the string is NULL (same as IsEmpty).
+Returns TRUE if the string is empty (same as \helpref{IsEmpty}{wxstringisempty}).
 
 \membersection{wxString::IsNumber}\label{wxstringisnumber}
 
 \constfunc{bool}{IsNumber}{\void}
 
-Returns TRUE if the string is a positive or negative integer. Will return FALSE for decimals.
+Returns TRUE if the string is an integer (with possible sign).
 
 \membersection{wxString::IsSameAs}\label{wxstringissameas}