求在linux系统上用GTK编写图形界面程序，要求用到窗口按钮标签容器和布局?

Question

求在linux系统上用GTK编写图形界面程序，要求用到窗口按钮标签容器和布局

Answer 1

void enter_callback( GtkWidget *widget,GtkWidget *entry ){const gchar *entry_text;entry_text = gtk_entry_get_text (GTK_ENTRY (entry));printf("Entry contents: %s\n", entry_text);}void entry_toggle_editable( GtkWidget *checkbutton,GtkWidget *entry ){gtk_editable_set_editable (GTK_EDITABLE (entry),GTK_TOGGLE_BUTTON (checkbutton)->active);}void entry_toggle_visibility( GtkWidget *checkbutton,GtkWidget *entry ){gtk_entry_set_visibility (GTK_ENTRY (entry),GTK_TOGGLE_BUTTON (checkbutton)->active);}/* 我们常见的回调函数 */void callback( GtkWidget *widget,gpointer data ){g_print ("Hello again - %s was pressed\n", (char *) data);}int main( int argc, char *argv[]){GtkWidget *window;GtkWidget *ok;GtkWidget *close;GtkWidget *text_view;GtkTextBuffer *buffer;GtkWidget *vbox;GtkWidget *hbox;GtkWidget *halign;GtkWidget *valign;gtk_init(&argc, &argv);//=============Build a window===========//window = gtk_window_new(GTK_WINDOW_TOPLEVEL);gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);gtk_window_set_default_size(GTK_WINDOW(window), 350, 280);gtk_window_set_title(GTK_WINDOW(window), "Labyrinth");gtk_container_set_border_width(GTK_CONTAINER(window), 10);g_signal_connect_swapped(G_OBJECT(window), "destroy",G_CALLBACK(gtk_main_quit), G_OBJECT(window));//=============Adjust layout============//vbox = gtk_vbox_new(FALSE, 5);valign = gtk_alignment_new(0, 1, 0, 0);gtk_container_add(GTK_CONTAINER(vbox), valign);gtk_container_add(GTK_CONTAINER(window), vbox);hbox = gtk_hbox_new(TRUE, 3);//=============Build tow button========//ok = gtk_button_new_with_label("OK");gtk_widget_set_size_request(ok, 70, 30);gtk_container_add(GTK_CONTAINER(hbox), ok);close = gtk_button_new_with_label("Close");gtk_container_add(GTK_CONTAINER(hbox), close);halign = gtk_alignment_new(1, 0, 0, 0);close = gtk_button_new_from_stock (GTK_STOCK_CLOSE);gtk_container_add(GTK_CONTAINER(halign), hbox);gtk_box_pack_start(GTK_BOX(vbox), halign, FALSE, FALSE, 0);g_signal_connect_swapped (G_OBJECT (close), "clicked",G_CALLBACK (gtk_widget_destroy),window);GTK_WIDGET_SET_FLAGS (close, GTK_CAN_DEFAULT);gtk_widget_grab_default (close);gtk_widget_show (close);//=============Build a TestView==========//text_view=gtk_text_view_new();/*创建文本框构件*/gtk_widget_set_size_request(text_view,200,200);gtk_container_add(GTK_CONTAINER(window),vbox);gtk_box_pack_start(GTK_BOX(vbox),text_view,FALSE,FALSE,0);buffer=gtk_text_view_get_buffer(GTK_TEXT_VIEW(text_view));gtk_widget_show(text_view);//=============================GtkWidget *entry;gint tmp_pos;entry = gtk_entry_new ();gtk_entry_set_max_length (GTK_ENTRY (entry), 50);g_signal_connect (G_OBJECT (entry), "OK",G_CALLBACK (enter_callback), entry);gtk_entry_set_text (GTK_ENTRY (entry), "hello");tmp_pos = GTK_ENTRY (entry)->text_length;gtk_editable_insert_text (GTK_EDITABLE (entry), " world", -1, &tmp_pos);gtk_editable_select_region (GTK_EDITABLE (entry),0, GTK_ENTRY (entry)->text_length);// tmp_pos = GTK_ENTRY (entry)->text_length;// gtk_editable_insert_text (GTK_EDITABLE (entry), " hello ", -1, &tmp_pos);// gtk_editable_select_region (GTK_EDITABLE (entry),// 0, GTK_ENTRY (entry)->text_length);gtk_box_pack_start (GTK_BOX (vbox), entry, TRUE, TRUE, 0);gtk_widget_show (entry);gtk_widget_show_all(window);gtk_main();return 0;}