gtkcurve.html

该压缩包包含了GTK+的大量API函数

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><TT
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><I
>curve</I
></TT
>&nbsp;:</TD
><TD
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>a <A
HREF="gtkcurve.html"
>GtkCurve</A
>.</TD
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><TD
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><TT
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><I
>min_x</I
></TT
>&nbsp;:</TD
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>the minimum x value.</TD
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><TT
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>max_x</I
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>&nbsp;:</TD
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>the maximum x value.</TD
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><TT
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><I
>min_y</I
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>&nbsp;:</TD
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>the minimum y value.</TD
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><TD
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><TT
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><I
>max_y</I
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>&nbsp;:</TD
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>the maximum y value.
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><HR><DIV
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><A
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></A
><H3
><A
NAME="GTK-CURVE-GET-VECTOR"
></A
>gtk_curve_get_vector ()</H3
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><PRE
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>void        gtk_curve_get_vector            (<A
HREF="gtkcurve.html"
>GtkCurve</A
> *curve,
                                             int veclen,
                                             <A
HREF=../glib/glib-basic-types.html#GFLOAT
>gfloat</A> vector[]);</PRE
></TD
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><P
>Returns a vector of points representing the curve.</P
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><TT
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><I
>curve</I
></TT
>&nbsp;:</TD
><TD
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>a <A
HREF="gtkcurve.html"
>GtkCurve</A
>.</TD
></TR
><TR
><TD
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><TT
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><I
>veclen</I
></TT
>&nbsp;:</TD
><TD
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>the number of points to calculate.</TD
></TR
><TR
><TD
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><TT
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><I
>vector</I
></TT
>&nbsp;:</TD
><TD
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>returns the points.
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><P
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><HR><DIV
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><A
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></A
><H3
><A
NAME="GTK-CURVE-SET-VECTOR"
></A
>gtk_curve_set_vector ()</H3
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><PRE
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>void        gtk_curve_set_vector            (<A
HREF="gtkcurve.html"
>GtkCurve</A
> *curve,
                                             int veclen,
                                             <A
HREF=../glib/glib-basic-types.html#GFLOAT
>gfloat</A> vector[]);</PRE
></TD
></TR
></TABLE
><P
>Sets the vector of points on the curve.
The curve type is set to <TT
CLASS="LITERAL"
>GTK_CURVE_TYPE_FREE</TT
>.</P
><DIV
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><A
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></A
><P
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><TD
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><TT
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><I
>curve</I
></TT
>&nbsp;:</TD
><TD
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>a <A
HREF="gtkcurve.html"
>GtkCurve</A
>.</TD
></TR
><TR
><TD
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><TT
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><I
>veclen</I
></TT
>&nbsp;:</TD
><TD
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>the number of points.</TD
></TR
><TR
><TD
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><TT
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><I
>vector</I
></TT
>&nbsp;:</TD
><TD
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>the points on the curve.
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><P
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></DIV
><HR><DIV
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><A
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></A
><H3
><A
NAME="GTK-CURVE-SET-CURVE-TYPE"
></A
>gtk_curve_set_curve_type ()</H3
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><PRE
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>void        gtk_curve_set_curve_type        (<A
HREF="gtkcurve.html"
>GtkCurve</A
> *curve,
                                             <A
HREF="gtk-standard-enumerations.html#GTKCURVETYPE"
>GtkCurveType</A
> type);</PRE
></TD
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><P
>Sets the type of the curve. The curve will remain unchanged except when
changing from a free curve to a linear or spline curve, in which case the
curve will be changed as little as possible.</P
><DIV
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><A
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></A
><P
></P
><TABLE
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><TD
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><TT
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><I
>curve</I
></TT
>&nbsp;:</TD
><TD
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>a <A
HREF="gtkcurve.html"
>GtkCurve</A
>.</TD
></TR
><TR
><TD
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><TT
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><I
>type</I
></TT
>&nbsp;:</TD
><TD
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>the type of the curve.
&#13;</TD
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><P
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><DIV
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><A
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></A
><H2
>Signals</H2
><DIV
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><A
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></A
><H3
><A
NAME="GTKCURVE-CURVE-TYPE-CHANGED"
></A
>The &quot;curve-type-changed&quot; signal</H3
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>void        user_function                  (<A
HREF="gtkcurve.html"
>GtkCurve</A
> *curve,
                                            <A
HREF=../glib/glib-basic-types.html#GPOINTER
>gpointer</A> user_data);</PRE
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><P
>Emitted when the curve type has been changed.
The curve type can be changed explicitly with a call to
<A
HREF="gtkcurve.html#GTK-CURVE-SET-CURVE-TYPE"
>gtk_curve_set_curve_type</A
>(). It is also changed as a side-effect of
calling <A
HREF="gtkcurve.html#GTK-CURVE-RESET"
>gtk_curve_reset</A
>() or <A
HREF="gtkcurve.html#GTK-CURVE-SET-GAMMA"
>gtk_curve_set_gamma</A
>().</P
><DIV
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><A
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><TT
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><I
>curve</I
></TT
>&nbsp;:</TD
><TD
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>the object which received the signal.&#13;</TD
></TR
><TR
><TD
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><TT
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><I
>user_data</I
></TT
>&nbsp;:</TD
><TD
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>user data set when the signal handler was connected.</TD
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><P
></P
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><DIV
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><A
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></A
><H2
>See Also</H2
><P
><P
></P
><DIV
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><DL
><DT
><A
HREF="gtkgammacurve.html"
>GtkGammaCurve</A
></DT
><DD
><P
>a subclass for editing gamma curves.</P
></DD
></DL
></DIV
>&#13;</P
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