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ee3d137660
Sat Nov 13 22:30:29 GMT 1999 Tony Gale <gale@gtk.org>
* docs/gtkfaq.sgml: threads example from Erik Mouw.
New question on GtkLabel background colors.
* docs/gtk_tut.sgml:
- Correct the example code callback
function definitions.
- Update the gtkdial example code, from Frans van Schaik.
- Update setselection.c to current API.
* examples/Makefile examples/*/*.c: Update to code
listed in tutorial.
98 lines
2.6 KiB
C
98 lines
2.6 KiB
C
/* example-start selection gettargets.c */
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#include <gtk/gtk.h>
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void selection_received( GtkWidget *widget,
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GtkSelectionData *selection_data,
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gpointer data );
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/* Signal handler invoked when user clicks on the "Get Targets" button */
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void get_targets( GtkWidget *widget,
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gpointer data )
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{
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static GdkAtom targets_atom = GDK_NONE;
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/* Get the atom corresponding to the string "TARGETS" */
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if (targets_atom == GDK_NONE)
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targets_atom = gdk_atom_intern ("TARGETS", FALSE);
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/* And request the "TARGETS" target for the primary selection */
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gtk_selection_convert (widget, GDK_SELECTION_PRIMARY, targets_atom,
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GDK_CURRENT_TIME);
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}
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/* Signal handler called when the selections owner returns the data */
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void selection_received( GtkWidget *widget,
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GtkSelectionData *selection_data,
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gpointer data )
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{
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GdkAtom *atoms;
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GList *item_list;
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int i;
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/* **** IMPORTANT **** Check to see if retrieval succeeded */
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if (selection_data->length < 0)
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{
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g_print ("Selection retrieval failed\n");
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return;
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}
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/* Make sure we got the data in the expected form */
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if (selection_data->type != GDK_SELECTION_TYPE_ATOM)
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{
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g_print ("Selection \"TARGETS\" was not returned as atoms!\n");
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return;
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}
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/* Print out the atoms we received */
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atoms = (GdkAtom *)selection_data->data;
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item_list = NULL;
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for (i=0; i<selection_data->length/sizeof(GdkAtom); i++)
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{
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char *name;
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name = gdk_atom_name (atoms[i]);
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if (name != NULL)
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g_print ("%s\n",name);
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else
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g_print ("(bad atom)\n");
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}
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return;
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}
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int main( int argc,
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char *argv[] )
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{
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GtkWidget *window;
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GtkWidget *button;
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gtk_init (&argc, &argv);
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/* Create the toplevel window */
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_title (GTK_WINDOW (window), "Event Box");
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gtk_container_set_border_width (GTK_CONTAINER (window), 10);
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gtk_signal_connect (GTK_OBJECT (window), "destroy",
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GTK_SIGNAL_FUNC (gtk_exit), NULL);
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/* Create a button the user can click to get targets */
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button = gtk_button_new_with_label ("Get Targets");
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gtk_container_add (GTK_CONTAINER (window), button);
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gtk_signal_connect (GTK_OBJECT(button), "clicked",
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GTK_SIGNAL_FUNC (get_targets), NULL);
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gtk_signal_connect (GTK_OBJECT(button), "selection_received",
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GTK_SIGNAL_FUNC (selection_received), NULL);
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gtk_widget_show (button);
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gtk_widget_show (window);
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gtk_main ();
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return 0;
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}
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/* example-end */
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