Jeremy White wrote:
Hi,
Was looking at something else and came across the -container option.
What is it for? The option has no documentation, but does seem to do
"something". It has a message loop (ContainerMsgLoop in
GUI_MessageLoops), and a constant (PERLWIN32GUI_CONTAINER) which is
checked/used in several places.
If anyone can provide an explanation - and perhaps an example:) I'll
update the docs.
I've had a look at the code, and can tell you what it does, but I can't
tell you why it's useful.
The -container option set the PERLWIN32GUI_CONTAINER flag against an
object. See ParseWindowOptions in GUI_Options.cpp:
} else BitmaskOption("-container", perlcs->dwPlStyle,
PERLWIN32GUI_CONTAINER)
It is used in the ControlMessageLoop (the window procedure that is by
default used to sub-class controls), and passes all unprocessed
WM_COMMAND and WM_NOTIFY messages the objects parent. Search for
PERLWIN32GUI_CONTAINER in GUI_Messageloops.cpp
The flag is automatically set in Create() on the parent of any window or
control that is not itself a window(Window, DialogBox, MDIFame, MDIClient)
So there you go. I can't think of a use for it.
Rob.
