clipped child

Good day!

A little problem.

Unhandled exception: page fault on read access to 0x00000067
 in 32-bit code (0x40a25f4e).
In 32-bit mode.
0x40a25f4e (clip_children+0x7e [winpos.c:83] in libx11drv.so): testb
$0x10,0x67(%esi)
83              if (ptr->dwStyle & WS_VISIBLE)

Lawson
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