dc.GetMultiLineTextExtent(GetLabelText(str), &wCheckbox, &hCheckbox);
wCheckbox += s_checkSize + GetCharWidth();
+ if ( ::GetWindowLong(GetHwnd(), GWL_STYLE) & BS_MULTILINE )
+ {
+ // We need to make the checkbox even wider in this case because
+ // otherwise it wraps lines automatically and not only on "\n"s as
+ // we need and this makes the size computed here wrong resulting in
+ // checkbox contents being truncated when it's actually displayed.
+ // Without this hack simple checkbox with "Some thing\n and more"
+ // label appears on 3 lines, not 2, under Windows 2003 using
+ // classic look and feel (although it works fine under Windows 7,
+ // with or without themes).
+ wCheckbox += s_checkSize;
+ }
+
if ( hCheckbox < s_checkSize )
hCheckbox = s_checkSize;
}