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<HTML><HEAD><TITLE>Frames</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.49"><LINKREL="HOME"TITLE="GTK+ 1.2 Tutorial"HREF="gtk-tut.html"><LINKREL="UP"TITLE="Container Widgets"HREF="ch-containerwidgets.html"><LINKREL="PREVIOUS"TITLE="Layout Container"HREF="sec-layoutcontainer.html"><LINKREL="NEXT"TITLE="Aspect Frames"HREF="sec-aspectframes.html"></HEAD></head><body bgcolor="#FFFFFF" marginheight=0 marginwidth=0 width="100%"><table cellspacing=6 border=0 cellpadding=0 width="100%"> <tr> <td bgcolor="#FFFFFF" valign=top nowrap> <centeR><A HREF="/"><img src="/images/gtk-logo-rgb.gif" width=107 height=140 border=0></A> <font face="helvetica,lucidia" color="#000000"><BR><BR><b>GTK+<BR>The GIMP Toolkit</b></center><BR><table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>General</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="/">Introduction</A><BR><A HREF="/screenshots/">Screenshots</A><br><A HREF="/download/">Download</A><br><A HREF="/mailinglists.html">Mailing Lists</A><BR><A HREF="/bindings.html">Language Bindings</A><BR><A HREF="http://gtk.themes.org/">Themes</A><BR><A HREF="/bugs.html">Bug Tracker</A><BR></td></tr></table></td></tr></table><BR> <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>Documentation</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="/faq/">FAQ</A><br><A HREF="/tutorial/">Tutorial</A><BR><A HREF="/api/">API Reference</A><br><A HREF="/books.html">Published Books</A><BR></td></tr></table></td></tr></table><BR> <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B>Projects</B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="http://www.pango.org/">Pango</A><BR><A HREF="http://sources.redhat.com/inti/">Inti</A><BR><A HREF="http://www.gnome.org/">GNOME</A><BR><A HREF="http://user.sgic.fi/~tml/gimp/win32/">GTK+ for Win32</A><br><A HREF="http://people.redhat.com/sopwith/gtkfb/">GtkFB (Framebuffer)</A><br><A HREF="http://www.directfb.org/gtk.xml">GTK+ on DirectFB</A><BR><A HREF="/beos/">GTK+ for BeOS</A></td></tr></table></td></tr></table><BR> <table width=100% cellspacing=0 cellpadding=2 border=0><tr><td bgcolor="#000000"><table width=100% cellspacing=0 cellpadding=4 border=0><tr><td bgcolor="#AAAAEE" nowrap><B><B>Applications</B></B></td></tr><tr><td bgcolor="#FFFFFF" nowrap><A HREF="http://www.gimp.org/">GIMP</A><BR><A HREF="http://www.abiword.org/">Abiword</A><BR><A HREF="http://www.lysator.liu.se/~alla/dia/dia.html">Dia</A><BR><A HREF="http://glade.pn.org/">Glade</A><BR><A HREF="http://www.gnucash.org/">GnuCash</A><BR><A HREF="http://www.gnome.org/projects/gnumeric/">Gnumeric</A><BR><BR><A HREF="http://www.gnome.org/applist/">GNOME Software Map</A><br></td></tr></table></td></tr></table><BR> </td> <td bgcolor="#ffffff" valign=top width="99%"><font face="lucida,helvetica"><BODYCLASS="SECT1"BGCOLOR="#FFFFFF"TEXT="#000000"LINK="#0000FF"VLINK="#840084"ALINK="#0000FF"><DIVCLASS="NAVHEADER"><TABLEWIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">GTK+ 1.2 Tutorial</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="sec-layoutcontainer.html"><<< Previous</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom">Chapter 10. Container Widgets</TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sec-aspectframes.html">Next >>></A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><DIVCLASS="SECT1"><H1CLASS="SECT1"><ANAME="SEC-FRAMES">10.5. Frames</A></H1><P>Frames can be used to enclose one or a group of widgets with a boxwhich can optionally be labelled. The position of the label and thestyle of the box can be altered to suit.</P><P>A Frame can be created with the following function:</P><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">GtkWidget *gtk_frame_new( const gchar *label );</PRE></TD></TR></TABLE><P>The label is by default placed in the upper left hand corner of theframe. A value of NULL for the <TTCLASS="LITERAL">label</TT> argument will result in nolabel being displayed. The text of the label can be changed using thenext function.</P><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">void gtk_frame_set_label( GtkFrame *frame, const gchar *label );</PRE></TD></TR></TABLE><P>The position of the label can be changed using this function:</P><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">void gtk_frame_set_label_align( GtkFrame *frame, gfloat xalign, gfloat yalign );</PRE></TD></TR></TABLE><P><TTCLASS="LITERAL">xalign</TT> and <TTCLASS="LITERAL">yalign</TT> take values between 0.0 and 1.0. <TTCLASS="LITERAL">xalign</TT>indicates the position of the label along the top horizontal of theframe. <TTCLASS="LITERAL">yalign</TT> is not currently used. The default value of xalignis 0.0 which places the label at the left hand end of the frame.</P><P>The next function alters the style of the box that is used to outlinethe frame.</P><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">void gtk_frame_set_shadow_type( GtkFrame *frame, GtkShadowType type);</PRE></TD></TR></TABLE><P>The <TTCLASS="LITERAL">type</TT> argument can take one of the following values:</P><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING"> GTK_SHADOW_NONE GTK_SHADOW_IN GTK_SHADOW_OUT GTK_SHADOW_ETCHED_IN (the default) GTK_SHADOW_ETCHED_OUT</PRE></TD></TR></TABLE><P>The following code example illustrates the use of the Frame widget.</P><TABLEBORDER="0"BGCOLOR="#E0E0E0"WIDTH="100%"><TR><TD><PRECLASS="PROGRAMLISTING">/* example-start frame frame.c */#include <gtk/gtk.h>int main( int argc, char *argv[] ){ /* GtkWidget is the storage type for widgets */ GtkWidget *window; GtkWidget *frame; GtkWidget *button; gint i; /* Initialise GTK */ gtk_init(&argc, &argv); /* Create a new window */ window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_window_set_title(GTK_WINDOW(window), "Frame Example"); /* Here we connect the "destroy" event to a signal handler */ gtk_signal_connect (GTK_OBJECT (window), "destroy", GTK_SIGNAL_FUNC (gtk_main_quit), NULL); gtk_widget_set_usize(window, 300, 300); /* Sets the border width of the window. */ gtk_container_set_border_width (GTK_CONTAINER (window), 10); /* Create a Frame */ frame = gtk_frame_new(NULL); gtk_container_add(GTK_CONTAINER(window), frame); /* Set the frame's label */ gtk_frame_set_label( GTK_FRAME(frame), "GTK Frame Widget" ); /* Align the label at the right of the frame */ gtk_frame_set_label_align( GTK_FRAME(frame), 1.0, 0.0); /* Set the style of the frame */ gtk_frame_set_shadow_type( GTK_FRAME(frame), GTK_SHADOW_ETCHED_OUT); gtk_widget_show(frame); /* Display the window */ gtk_widget_show (window); /* Enter the event loop */ gtk_main (); return(0);}/* example-end */</PRE></TD></TR></TABLE></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLEWIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="sec-layoutcontainer.html"><<< Previous</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="gtk-tut.html">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="sec-aspectframes.html">Next >>></A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">Layout Container</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="ch-containerwidgets.html">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">Aspect Frames</TD></TR></TABLE></DIV> </td> </tr></table> </td> </tr></table></body></BODY></HTML>⌨️ 快捷键说明
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