🚀 go-pugleaf

I want to create a child window showing a colourscale for a map:
	+---+
	|zzz|			aaa,...zzz are different colours
	+---+- 100		10,20,100 are the data values
	|yyy|
	+---+-  90
	|xxx|
	+---+-  80
	...
	+---+-  10
	|aaa|
	+---+
Ok, I created it with WS_CHILD | WS_THICKFRAME | WS_SYSMENU | WS_VISIBLE
and I also specify the initial size (but allow it to be resized with
WS_THICKFRAME).  All is ok, and I can move it around etc.  However, like
all Windows windows (i.e. Write,Paintbrush,Notepad,etc), although the
vertical size can be reduced to almost nothing, there is a minimum
width of the window - just enough to show the system menu, part of the
caption and min/max boxes (if any).

I would like to be able to allow the user to make this window as narrow
or as wide as required, i.e. narrow enough to exclude the colour labels
or wide enough to see the labels in case the data file being viewed
has data levels like 1234567.  In other words - adjust width to suit
your taste.

Anyway, Windows won't let me make it narrows than some minimum width.
Is there another combination of WS_ styles/window types that will let me
make this window more narrow than the minimum?  Is it stated anywhere
in the docs what exactly this minimum is and why it exists?  I can see
that it shouldn't be smaller than the width of the system menu+
min box+max box (if present), but since I don't have a caption, minimize
box or maximize box, it should allow me to make it as narrow as the
system menu box.
-- 
John A. Grant						jagrant@emr1.emr.ca
Airborne Geophysics
Geological Survey of Canada, Ottawa