Represents the width of a dialog element. If used with a column specification control or list view column, it represents the width of the column in pixels.

For list view columns, two special negative values for this attribute may be set after the column has been created:

-1 = Autosize the column to fit longest value displayed in the column. -2 = Autosize the (last) column to fit the remaining header width.

Applies to	ActiveX control, bitmap control, canvas control, control box control, date/time picker control, dialog (all types), dialog bar control, edit area control, graphic text control, group frame control, input field control, list box control, list view control, OLE container control, push button control, progress bar control, radio button control, rectangle control, scroll bar control, selection box control, slider control, spin control, status bar control, tab control, table control, text constant control, tool bar control, toggle button control, tree view control.
Data Type	I4
Default Value	0
Possible Values	0 - 9999