USER.

never actually pass them to Unix system calls.

but not tab control buttons.

which conflicts with the fd_set typedef.

call returns. Callers adapted.

Serge Ivanov and Andrew Lewycky.  Fixed item focus behavior to match
Windows.  Fixed item selection when un/expanding items.  Implemented
WM_SETREDRAW.  Added Corel's COMCTL32_CreateToolTip() helper function
to commctrl.c.

Fixed problem with origin for DST_COMPLEX style.
Fixed handling of DSS_DISABLED and DSS_DEFAULT styles.

Added handling of BS_MULTILINE style, label alignment
styles (BS_RIGHT, etc.) and some exotic styles BS_FLAT (only
pushbuttons for now), and BS_PUSHLIKE.

Modified label drawing procedure: now all kinds of buttons
use common BUTTON_DrawLabel function. Actual label drawing is
performed by DrawStateW function.

GroupBox must use WM_CTLCOLORSTATIC instead of WM_CTLCOLORBTN message.

previous region.

maxval) change.

- get rid of wrong comments
- fix comments
- .spec spelling fix
- improve warning message

constant.

Painting fails if the rectangle is invalid.

server search sequence.

Misc bug fixes.