Gtk Properties（4）

最新推荐文章于 2023-12-30 23:05:33 发布

Kato33

最新推荐文章于 2023-12-30 23:05:33 发布

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分类专栏： GTK

本文链接：https://blog.youkuaiyun.com/weixin_44374594/article/details/118060137

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Gtk Properties（1）
Gtk Properties（2）
Gtk Properties（3）

重新install property
可以看看源码如何install property，gtkbutton.c

#include <gtk/gtk.h>

enum
{
	PROP_0,
	PROP_EXIT
};

static GtkWidget *createWindow(gint, gint, gchar *);

int main(int argc, char *argv[])
{
	gtk_init(&argc, &argv);

	GtkWidget *window;
	GtkWidget *button;
	GObjectClass *object_class;
	GParamSpec *pspec;

	/// *** window
	window = createWindow(200, 200, "Properties");

	/// ***button
	// button = gtk_button_new_with_label("Click");
	button = gtk_button_new();

	/// ***
	object_class = G_OBJECT_GET_CLASS(button);
	/// ***
	pspec = g_param_spec_string("exit",
								"EXIT",
								"This is the Exit message Label",
								NULL,
								G_PARAM_READABLE | G_PARAM_WRITABLE);
	/// *** 不知为何会出错，这句代码会使程序崩溃
	g_object_class_install_property(object_class, PROP_EXIT, pspec);

	/// ***
	g_object_set(button, "exit", "Close", NULL);

	gtk_container_add(GTK_CONTAINER(window), button);
	gtk_widget_show_all(window);
	gtk_main();
}

static GtkWidget *createWindow(gint width, gint height, gchar *title)
{
	GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	gtk_widget_set_size_request(window, width, height);
	gtk_window_set_title(GTK_WINDOW(window), title);
	gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
	gtk_container_set_border_width(GTK_CONTAINER(window), 25);
	g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
	return window;
}