简易桌面

一个简易桌面，只有一个贴图背景，主要是记录更改分辨率大小时可以缩放的部分。

 

#include <gtk/gtk.h>GtkWidget *window = NULL;GdkPixbuf *pixbuf = NULL;GdkPixmap *pixmap = NULL;static gbooleanon_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer data){gint w, h;GdkScreen *gscreen;gscreen = gdk_screen_get_default();w = gdk_screen_get_width(gscreen);h = gdk_screen_get_height(gscreen);gtk_widget_set_size_request(window, w, h);pixbuf = gdk_pixbuf_new_from_file_at_scale ("./bg.png", w, h, FALSE, NULL);pixmap = gdk_pixmap_new (window->window, gdk_pixbuf_get_width(pixbuf), gdk_pixbuf_get_height(pixbuf), -1);gdk_draw_pixbuf (pixmap,NULL,pixbuf,0,0,0,0,gdk_pixbuf_get_width(pixbuf),gdk_pixbuf_get_height(pixbuf),GDK_RGB_DITHER_NORMAL,0,0); g_object_unref(pixbuf);gdk_window_set_back_pixmap (window->window, pixmap, FALSE);}int main(int argc, char *argv[]){gtk_init(&argc,&argv);/* Create the window */window = gtk_window_new(GTK_WINDOW_TOPLEVEL);/* Set as Desktop */gtk_window_set_type_hint (GTK_WINDOW(window), GDK_WINDOW_TYPE_HINT_DESKTOP);gtk_window_set_title(GTK_WINDOW(window),"User Define Button Demo");gtk_widget_set_app_paintable(window,TRUE);gtk_widget_realize (window);gint w,h;GdkScreen *gscreen;gscreen = gdk_screen_get_default();w = gdk_screen_get_width(gscreen);h = gdk_screen_get_height(gscreen);gtk_widget_set_size_request(window, w, h);g_signal_connect (G_OBJECT (window), "delete_event", G_CALLBACK (gtk_main_quit), NULL);pixbuf = gdk_pixbuf_new_from_file_at_scale ("./bg.png", w, h, FALSE, NULL);pixmap = gdk_pixmap_new (window->window, w, h, -1);gdk_draw_pixbuf (pixmap,NULL,pixbuf,0,0,0,0,gdk_pixbuf_get_width(pixbuf),gdk_pixbuf_get_height(pixbuf),GDK_RGB_DITHER_NORMAL,0,0);g_object_unref(pixbuf);gdk_window_set_back_pixmap (window->window, pixmap, FALSE);g_signal_connect (G_OBJECT(window), "expose-event", G_CALLBACK(on_expose_event), NULL);gtk_widget_show_all(window);gtk_main();return 0;}