hello:
From tutorial I get a program about pixbuf.When I compiled it using command:
gcc pixbuf.c -o pixbuf 'pkg-config gtk+-2.0 --cfalgs --libs'
has an error:
pixbuf.c:In function 'main'
pixbuf.c:25:warning:implicit declaration of function 'gtk_signal_connect'
/tmp/ccWsnI1r.o In function 'main'
/tmp/ccWsnI1r.o(.text+0x92):undefined reference to 'gtk_signal_connect'
collect2:ld returned 1 exit status
how can I find 'gtk_signal_connect'?
below is my pixbuf.c from tutorial:
#include <gtk/gtk.h>
#define IMAGE_WIDTH 256
#define IMAGE_HEIGHT 256
guchar rgbbuf[IMAGE_WIDTH * IMAGE_HEIGHT * 3];
gboolean on_darea_expose (GtkWidget *widget,
GdkEventExpose *event,
gpointer user_data);
int
main (int argc, char *argv[])
{
GtkWidget *window, *darea;
gint x, y;
guchar *pos;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
darea = gtk_drawing_area_new ();
gtk_widget_set_size_request (darea, IMAGE_WIDTH, IMAGE_HEIGHT);
gtk_container_add (GTK_CONTAINER (window), darea);
gtk_signal_connect (GTK_OBJECT (darea), "expose-event",
GTK_SIGNAL_FUNC (on_darea_expose), NULL);
gtk_widget_show_all (window);
/* Set up the RGB buffer. */
pos = rgbbuf;
for (y = 0; y < IMAGE_HEIGHT; y++)
{
for (x = 0; x < IMAGE_WIDTH; x++)
{
*pos++ = x - x % 32; /* Red. */
*pos++ = (x / 32) * 4 + y - y % 32; /* Green. */
*pos++ = y - y % 32; /* Blue. */
}
}
gtk_main ();
return 0;
}
gboolean
on_darea_expose (GtkWidget *widget,
GdkEventExpose *event,
gpointer user_data)
{
gdk_draw_rgb_image (widget->window, widget->style->fg_gc[GTK_STATE_NORMAL],
0, 0, IMAGE_WIDTH, IMAGE_HEIGHT,
GDK_RGB_DITHER_MAX, rgbbuf, IMAGE_WIDTH * 3);
return TRUE;
}
=========================
yangxiaoli
[EMAIL PROTECTED]
2003-06-03
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