（1）GTK視窗顯示縮放到和視窗同樣大小的影像(gtk9b.c)
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ cat gtk9b.c
#include <gtk/gtk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
int main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *image;
gtk_init (&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
image = gtk_image_new_from_file("map.png");
gtk_container_add (GTK_CONTAINER (window), image);
g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit) , NULL);
gtk_widget_set_size_request (window, 1024,768);
GdkPixbuf *pixbuf = gtk_image_get_pixbuf(GTK_IMAGE(image));
if (pixbuf == NULL)
{
g_printerr("Failed to resize image\n");
return 1;
}
int width, height;
gtk_window_get_size(GTK_WINDOW(window), &width, &height);
pixbuf = gdk_pixbuf_scale_simple(pixbuf, width, height, GDK_INTERP_BILINEAR);
gtk_image_set_from_pixbuf(GTK_IMAGE(image), pixbuf);
gtk_widget_show_all (window);
gtk_main();
return 0;
}
（2）編譯並執行
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ gcc gtk9b.c -Wall `pkg-config --cflags --libs gtk+-3.0` -export-dynamic
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ ./a.out
