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This gets rid of that awkward STANDARD_PREFIX system in which every branch of the old 'union control' had to repeat all the generic fields, and then call sites had to make an arbitrary decision about which branch to access them through. That was the best we could do before accepting C99 features in this code base. But now we have anonymous unions, so we don't need to put up with that nonsense any more! 'dlgcontrol' is now a struct rather than a union, and the generic fields common to all control types are ordinary members of the struct, so you don't have to refer to them as ctrl->generic.foo at all, just ctrl->foo, which saves verbiage at the point of use. The extra per-control fields are still held in structures named after the control type, so you'll still say ctrl->listbox.height or whatever. But now those structures are themselves members of an anonymous union field following the generic fields, so those sub-structures don't have to reiterate all the standard stuff too. While I'm here, I've promoted 'context2' from an editbox-specific field to a generic one (it just seems silly _not_ to allow any control to have two context fields if it needs it). Also, I had to rename the boolean field 'tabdelay' to avoid it clashing with the subsidiary structure field 'tabdelay', now that the former isn't generic.tabdelay any more.
This is the README for PuTTY, a free Windows and Unix Telnet and SSH
client.
PuTTY is built using CMake <https://cmake.org/>. To compile in the
simplest way (on any of Linux, Windows or Mac), run these commands in
the source directory:
cmake .
cmake --build .
Documentation (in various formats including Windows Help and Unix
`man' pages) is built from the Halibut (`.but') files in the `doc'
subdirectory using `doc/Makefile'. If you aren't using one of our
source snapshots, you'll need to do this yourself. Halibut can be
found at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.
The PuTTY home web site is
https://www.chiark.greenend.org.uk/~sgtatham/putty/
If you want to send bug reports or feature requests, please read the
Feedback section of the web site before doing so. Sending one-line
reports saying `it doesn't work' will waste your time as much as
ours.
See the file LICENCE for the licence conditions.