gtk2/examples/helloworld2/helloworld2.c
Owen Taylor 2cabeeb1c3 Removed g_object_pointer_hash, which was just g_direct_hash.
Tue Jun  9 18:44:57 1998  Owen Taylor  <otaylor@gtk.org>

	* gtk/gtkobject.c: Removed g_object_pointer_hash, which
	was just g_direct_hash.

Mon May 25 19:54:20 1998  Owen Taylor  <otaylor@gtk.org>

	* configure.in: x_libs=, not $x_libs=. Enough said.
          (Case only hit for --disable-xshm)

Mon May 25 12:08:14 1998  Owen Taylor  <otaylor@gtk.org>

	* configure.in (LDFLAGS): Add to $CFLAGS and $LDFLAGS
	  when testing for X libraries, don't replace them. Because
	  the user might have specified the path to the X libraries
	  themself before running configure.

	* examples/**.c: Changed all gpointer * to gpointer

Sat May 23 21:54:05 1998  Owen Taylor  <otaylor@gtk.org>

	* configure.in (LDFLAGS): Bomb out with a moderately
	  helpful message if detection of X libraries fails.

Sat May 23 18:57:06 1998  Owen Taylor  <otaylor@gtk.org>

  [ Combination of:
     gtk-rrh-980412-0.patch (Raja R Harinath <harinath@cs.umn.edu>)
     gtk-jbuhler-980516-0 (Jeremy Buhler <jbuhler@cs.washington.edu>) ]

	* gdk/gdk.h gdk/gdkcc.c gdk/gdkfont.c gtk/gtkmain.c
	  gtk/gtksignal.c gtk/gtktext.c:

	  Fixups for warnings from adding const to type of GHashFunc,
	  GCompareFunc

	* gtk/gtkcombo.c (gtk_combo_entry_key_press): Minor style/
	  ansi-warnings fixups.

Tue Jun  9 17:47:33 1998  Owen Taylor  <otaylor@gtk.org>

	* glib.h: Remove #error - HP/UX.

Sat May 23 19:00:01 1998  Owen Taylor  <otaylor@gtk.org>
  [ Combination of:
     gtk-rrh-980412-0.patch (Raja R Harinath <harinath@cs.umn.edu>)
     gtk-jbuhler-980516-0 (Jeremy Buhler <jbuhler@cs.washington.edu>) ]

	* glib.h ghash.c gstring.c gdataset.c gutils.c:
	- Added new typedef g_const_pointer; expunged all incorrect
	  uses of 'const gpointer'.
	- Fixed up warnings that that created,
	- Changed GHashFunc and GCompareFunc to take g_const_pointer
	  arguments. (Necessary, but will cause warnings in existing
	  code until fixed)
	- Added other new const in harmless positions.
1998-06-09 23:18:11 +00:00

95 lines
3.1 KiB
C

/* This file extracted from the GTK tutorial. */
/* helloworld2.c */
#include <gtk/gtk.h>
/* Our new improved callback. The data passed to this function is printed
* to stdout. */
void callback (GtkWidget *widget, gpointer data)
{
g_print ("Hello again - %s was pressed\n", (char *) data);
}
/* another callback */
void delete_event (GtkWidget *widget, GdkEvent *event, gpointer data)
{
gtk_main_quit ();
}
int main (int argc, char *argv[])
{
/* GtkWidget is the storage type for widgets */
GtkWidget *window;
GtkWidget *button;
GtkWidget *box1;
/* this is called in all GTK applications. arguments are parsed from
* the command line and are returned to the application. */
gtk_init (&argc, &argv);
/* create a new window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
/* this is a new call, this just sets the title of our
* new window to "Hello Buttons!" */
gtk_window_set_title (GTK_WINDOW (window), "Hello Buttons!");
/* Here we just set a handler for delete_event that immediately
* exits GTK. */
gtk_signal_connect (GTK_OBJECT (window), "delete_event",
GTK_SIGNAL_FUNC (delete_event), NULL);
/* sets the border width of the window. */
gtk_container_border_width (GTK_CONTAINER (window), 10);
/* we create a box to pack widgets into. this is described in detail
* in the "packing" section below. The box is not really visible, it
* is just used as a tool to arrange widgets. */
box1 = gtk_hbox_new(FALSE, 0);
/* put the box into the main window. */
gtk_container_add (GTK_CONTAINER (window), box1);
/* creates a new button with the label "Button 1". */
button = gtk_button_new_with_label ("Button 1");
/* Now when the button is clicked, we call the "callback" function
* with a pointer to "button 1" as it's argument */
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (callback), (gpointer) "button 1");
/* instead of gtk_container_add, we pack this button into the invisible
* box, which has been packed into the window. */
gtk_box_pack_start(GTK_BOX(box1), button, TRUE, TRUE, 0);
/* always remember this step, this tells GTK that our preparation for
* this button is complete, and it can be displayed now. */
gtk_widget_show(button);
/* do these same steps again to create a second button */
button = gtk_button_new_with_label ("Button 2");
/* call the same callback function with a different argument,
* passing a pointer to "button 2" instead. */
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (callback), (gpointer) "button 2");
gtk_box_pack_start(GTK_BOX(box1), button, TRUE, TRUE, 0);
/* The order in which we show the buttons is not really important, but I
* recommend showing the window last, so it all pops up at once. */
gtk_widget_show(button);
gtk_widget_show(box1);
gtk_widget_show (window);
/* rest in gtk_main and wait for the fun to begin! */
gtk_main ();
return 0;
}