By Michael Fielding
As discussed on wx-dev. some fixes and improvements for Interprocess Communication (IPC), using DDE and TCP.
1. DDE buffers were using a global buffer
2. TCP buffers were allocated each time needed, and Request would have caused memory leaks had it been used.
Fixed these both by using a self-resizing buffer in wxConnectionBase. Changed samples and docs to reflect the improved (but backward compatible) internal buffer management. wxConnectionBase could (in future) use wxMemoryBuffer.
3. IPC sample had trouble closing, causing crash, when closing server using window X button.
Because it was (effectively) trying to delete a window in OnExit, when that window was already destroyed. Fixed by making IPCDialog and MyConnection remember if they'd destroyed each other. It's not elegant, but either the connection or the window could be deleted first.
4. Docs for wxDDE... and wxTCP... duplicated eachother, supposed to have same API. Some parts unclear.
Patch removes dde and tcp-specific files (including from tipc.tex and classes.tex), and explains how ipc.h selects for you which one to use based on platform. Some other misc clarifications.
6. Client sample was suffering apparent memory leak because of not deleting connection object, and had a hack in there to do that.
In fact this was due to the derived OnDisconnect not deleting itself, as it does in base class. Mentioned need to do it in docs, fixed sample so that it does.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16907 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
By Robert O'Connor
This is a patch to wxTip Provider classes used by the "Tip of the day" dialog.
See wx-dev archives August 2002 for discussion of the functionality design.
It does 5 things:
-Support for comments inside the tips file. The pound character (#) is used, as recommended by Vadim.
-Allows optional easy translation support to tips, by marking them as translatable for gettext, by enclosing them in a _(""). Program will translate these tips at runtime from the active catalog.
-Blank lines or lines with just spaces are automatically skipped (I had to put this in, I keep wondering why I get blank tips sometimes and it is because the text file had a empty blank line at the end of the text file).
-There is a pluggable virtual function to preprocess to modify the tip in a derived class, in case something specialized is desired, such as variable expansion, etc, as recommended by Julian and Vadim.
-Now resets the tip counter if the previous tip is past the end of the file (ie you removed some tips, or changed tip files), as discussed on wx-dev.
This patch updates:
-The classes.
-The class documentation and the Tip-of-the-day topic overview documentation.
-The dialogs example, placing some new strings for the tips.txt file which demonstrate how to use the Tip-of-the-day features for in practice.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16887 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
