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><A
NAME="AEN1086"
>Other ideas</A
></H1
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><H2
CLASS="SECT2"
><A
NAME="AEN1088"
>Adding a scrollbar</A
></H2
><P
>Often a scrollbar will be added to the ZvtTerm widget to
allow its scroll-back buffer to be controlled via a mouse (see
). Each ZvtTerm
provides this via an adjustment defined in the object structure
as simply <TT
CLASS="LITERAL"
>adjustment</TT
>.</P
><P
>Also note that mouse-wheel mice are automatically
handled by the button event handler if the terminal widget has
focus, and perform a page up/down function.
</P
><DIV
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><A
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></A
><P
><B
>Example 4. Creating an appropriate scrollbar</B
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> gtk_vscrollbar_new (GTK_ADJUSTMENT (ZVT_TERM (term)->adjustment));
GTK_WIDGET_UNSET_FLAGS (scrollbar, GTK_CAN_FOCUS);
</PRE
></TD
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><P
>You will normally want to disable focus on the
scrollbar otherwise gtk may switch focus inappropriately.
</P
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><H2
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><A
NAME="AEN1098"
>Reading data from the screen</A
></H2
><P
>There are no helper functions for this, but the same may
be achieved simply using the following code fragment.</P
><DIV
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><A
NAME="AEN1101"
></A
><P
><B
>Example 5. Converting window coordinates to character
coordinates.</B
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>void mouse_to_char(ZvtTerm *term, int mousex, int mousey, int *x, int *y)
{
*x = mousex/term->charwidth;
*y = mousey/term->charheight;
}
</PRE
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>These values are then suitable for using with
to let the
application read data from the screen.</P
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>
distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
>
by-pkgid
>
1bbf51ece72e40a5f40ad48678e7c5a5
>
files
>
719
