通过这几天GTK的学习，网上关于gtk的资料少之又少！
分享几个执行成功的案例，纯用来感兴趣的学习使用。
下面是制作一个接盘界面，可以模拟鼠标点击，点击Quit可以退出。
一、效果图：
二、代码：
这个代码对gtk版本没有太大要求，2.-或者3.-或者4.-应该都可以，大家可以尝试后留言，我这个是gtk2版本。
#include <gtk/gtk.h>
/* 我们的回调。
* 传到这个函数的数据被打印到标准输出 */
void callback(GtkWidget* widget, gpointer data)
{
g_print("%s", (char*)data);
}
/* 这个回调退出程序 */
gint delete_event(GtkWidget* widget, GdkEvent* event, gpointer data)
{
gtk_main_quit();
return FALSE;
}
int main(int argc, char* argv[])
{
GtkWidget* window;
GtkWidget* button;
GtkWidget* table;
gtk_init(&argc, &argv);
/* 创建一个新窗口 */
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
/* 设置窗口标题 */
gtk_window_set_title(GTK_WINDOW(window), "Rong Tao's Keyboard");
/* 为 delete_event 设置一个立即退出 GTK 的处理函数。 */
g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK(delete_event), NULL);
/* 设置窗口的边框宽度。 */
gtk_container_set_border_width(GTK_CONTAINER(window), 20);
/* 创建一个 2x2 的表 */
table = gtk_table_new(4, 20, TRUE);
/* 将表放进主窗口 */
gtk_container_add(GTK_CONTAINER(window), table);
/* 创建第一个按钮 */
button = gtk_button_new_with_label("Q");
/* 当这个按钮被点击时,我们调用 "callback" 函数,并将一个指向"button 1"的指针作为它的参数 */
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"q");
/* 将 button 1 插入表的左上象限(quadrant) */
gtk_table_attach_defaults(GTK_TABLE(table), button, 0, 2, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("W");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"w");
gtk_table_attach_defaults(GTK_TABLE(table), button, 2, 4, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("E");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"e");
gtk_table_attach_defaults(GTK_TABLE(table), button, 4, 6, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("R");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"r");
gtk_table_attach_defaults(GTK_TABLE(table), button, 6, 8, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("T");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"t");
gtk_table_attach_defaults(GTK_TABLE(table), button, 8, 10, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("Y");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"y");
gtk_table_attach_defaults(GTK_TABLE(table), button, 10, 12, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("U");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"u");
gtk_table_attach_defaults(GTK_TABLE(table), button, 12, 14, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("I");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"i");
gtk_table_attach_defaults(GTK_TABLE(table), button, 14, 16, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("O");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"o");
gtk_table_attach_defaults(GTK_TABLE(table), button, 16, 18, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("P");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"p");
gtk_table_attach_defaults(GTK_TABLE(table), button, 18, 20, 0, 1);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("A");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"a");
gtk_table_attach_defaults(GTK_TABLE(table), button, 1, 3, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("S");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"s");
gtk_table_attach_defaults(GTK_TABLE(table), button, 3, 5, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("D");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"d");
gtk_table_attach_defaults(GTK_TABLE(table), button, 5, 7, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("F");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"f");
gtk_table_attach_defaults(GTK_TABLE(table), button, 7, 9, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("G");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"g");
gtk_table_attach_defaults(GTK_TABLE(table), button, 9, 11, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("H");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"h");
gtk_table_attach_defaults(GTK_TABLE(table), button, 11, 13, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("J");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"j");
gtk_table_attach_defaults(GTK_TABLE(table), button, 13, 15, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("K");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"k");
gtk_table_attach_defaults(GTK_TABLE(table), button, 15, 17, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("L");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"l");
gtk_table_attach_defaults(GTK_TABLE(table), button, 17, 19, 1, 2);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("'");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"'");
gtk_table_attach_defaults(GTK_TABLE(table), button, 0, 2, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("Z");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"z");
gtk_table_attach_defaults(GTK_TABLE(table), button, 2, 4, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("X");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"x");
gtk_table_attach_defaults(GTK_TABLE(table), button, 4, 6, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("C");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"c");
gtk_table_attach_defaults(GTK_TABLE(table), button, 6, 8, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("V");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"v");
gtk_table_attach_defaults(GTK_TABLE(table), button, 8, 10, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("B");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"b");
gtk_table_attach_defaults(GTK_TABLE(table), button, 10, 12, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("N");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"n");
gtk_table_attach_defaults(GTK_TABLE(table), button, 12, 14, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("M");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"m");
gtk_table_attach_defaults(GTK_TABLE(table), button, 14, 16, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label(",");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)",");
gtk_table_attach_defaults(GTK_TABLE(table), button, 16, 18, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label(".");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)".");
gtk_table_attach_defaults(GTK_TABLE(table), button, 18, 20, 2, 3);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label("Enter");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)"\n");
gtk_table_attach_defaults(GTK_TABLE(table), button, 2, 6, 3, 4);
gtk_widget_show(button);
/*********************/
button = gtk_button_new_with_label(" ");
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(callback), (gpointer)" ");
gtk_table_attach_defaults(GTK_TABLE(table), button, 6, 16, 3, 4);
gtk_widget_show(button);
/* 创建"Quit"按钮 */
button = gtk_button_new_with_label("Quit");
/* 当这个按钮被点击时,我们调用 "delete_event" 函数接着程序就退出了 */
g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK(delete_event), NULL);
/* 将退出按钮插入表的下面两个象限 */
gtk_table_attach_defaults(GTK_TABLE(table), button, 16, 19, 3, 4);
gtk_widget_show(button);
gtk_widget_show(table);
gtk_widget_show(window);
gtk_main();
return 0;
}