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  1. #include <gtk/gtk.h>
  2. #include <string.h>
  3.  
  4. void hello(GtkApplication *app, gpointer data);
  5. gchar *prompt(GtkWidget *window);
  6. void getname(GtkEntry *entry, GtkWidget *parent) {
  7. 	g_signal_emit_by_name(parent, "response", 42);
  8. }
  9.  
  10. int main(int argc, char *argv[])
  11. {
  12. 	GtkApplication *app;
  13. 	int status;
  14.  
  15. 	app = gtk_application_new("null.localhost.hello", G_APPLICATION_FLAGS_NONE);
  16. 	g_signal_connect(app, "activate", G_CALLBACK(hello), NULL);
  17. 	status = g_application_run(G_APPLICATION(app), argc, argv);
  18. 	g_object_unref(app);
  19.  
  20. 	return status;
  21. }
  22.  
  23. void hello(GtkApplication *app, gpointer data) {
  24. 	GtkWidget *win_hello;
  25. 	GtkWidget *label;
  26. 	gchar *name = NULL;
  27. 	gchar hello_str[] = "Hello, ";
  28. 	gchar *greeting;
  29.  
  30. 	win_hello = gtk_application_window_new(app);
  31. 	gtk_window_set_title(GTK_WINDOW(win_hello), "Hello");
  32. 	gtk_window_set_default_size(GTK_WINDOW(win_hello), 180, 100);
  33. 	gtk_container_set_border_width(GTK_CONTAINER(win_hello), 10);
  34.  
  35. 	name = prompt(win_hello);
  36. 	if (name == NULL) {
  37. 		gtk_application_remove_window(app, GTK_WINDOW(win_hello));
  38. 	} else {
  39. 		greeting = g_malloc(sizeof(gchar) * (strlen(name) + 1) + sizeof(hello_str));
  40. 		g_strlcpy(greeting, hello_str, sizeof(hello_str));
  41. 		g_strlcat(greeting, name, strlen(name) + sizeof(hello_str) + 1);
  42. 		g_strlcat(greeting, "!", 1);
  43. 		label = gtk_label_new(greeting);
  44. 		gtk_container_add(GTK_CONTAINER(win_hello), label);
  45.  
  46. 		gtk_widget_show_all(win_hello);
  47. 	}
  48. }
  49.  
  50. gchar *prompt(GtkWidget *window) {
  51. 	GtkWidget *win_prompt;
  52. 	GtkWidget *content_area;
  53. 	GtkWidget *label;
  54. 	GtkWidget *entry;
  55. 	GtkWidget *box;
  56. 	GtkDialogFlags flags = GTK_DIALOG_MODAL;
  57. 	const gchar *in_data;
  58. 	gchar *buffer;
  59. 	gint result;
  60.  
  61. 	win_prompt = gtk_dialog_new_with_buttons("Prompt", GTK_WINDOW(window), flags, "OK", GTK_RESPONSE_ACCEPT, "Cancel", GTK_RESPONSE_REJECT, NULL);
  62. 	content_area = gtk_dialog_get_content_area(GTK_DIALOG(win_prompt));
  63.  
  64. 	box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);
  65. 	gtk_container_add(GTK_CONTAINER(content_area), box);
  66.  
  67. 	label = gtk_label_new("Your name:");
  68. 	gtk_box_pack_start(GTK_BOX(box), label, TRUE, FALSE, FALSE);
  69.  
  70. 	entry = gtk_entry_new();
  71. 	g_signal_connect(entry, "activate", G_CALLBACK(getname), win_prompt);
  72. 	gtk_box_pack_start(GTK_BOX(box), entry, TRUE, FALSE, FALSE);
  73.  
  74. 	gtk_widget_show_all(win_prompt);
  75.  
  76. 	result = gtk_dialog_run(GTK_DIALOG(win_prompt));
  77.  
  78. 	switch(result) {
  79. 	case GTK_RESPONSE_REJECT:
  80. 		gtk_widget_destroy(win_prompt);
  81. 		return NULL;
  82. 	case GTK_RESPONSE_ACCEPT:
  83. 	default:
  84. 		in_data = gtk_entry_get_text(GTK_ENTRY(entry));
  85. 		buffer = g_strdup(in_data);
  86. 		gtk_widget_destroy(win_prompt);
  87. 		return buffer;
  88. 	}
  89. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.c:1:21: fatal error: gtk/gtk.h: No such file or directory
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/q7Gpvt
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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