如何防止GtkWindow增长？

Question

这是我的代码：

#include<gtk/gtk.h>
int main(int argc,char**argv)
{
   GtkWidget* window, *button, *grid;
   gtk_init(&argc,&argv);

   window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
   gtk_window_set_default_size(GTK_WINDOW(window),100,100);
   g_signal_connect(G_OBJECT(window),"destroy",G_CALLBACK(gtk_main_quit),NULL);
   //gtk_container_set_border_width(GTK_CONTAINER(window),10);
   gtk_window_set_resizable(GTK_WINDOW(window), FALSE);

   grid = gtk_grid_new();
   button = gtk_button_new_with_label("1");
   gtk_grid_attach(GTK_GRID(grid), button, 0,0, 100, 1);
   gtk_grid_set_column_homogeneous(GTK_GRID(grid), TRUE);
   gtk_grid_set_row_homogeneous(GTK_GRID(grid), TRUE);

   button = gtk_button_new_with_label("1");
   gtk_grid_attach(GTK_GRID(grid), button,0, 1, 10, 1);
   gtk_container_add(GTK_CONTAINER(window), grid);
   gtk_widget_show_all(window);
   gtk_main();
   return 0;
}

此代码的结果是：gtk_grid_attach(GTK_GRID(grid), button,0, 1, 100, 1)

当我将gtk_grid_attach（GTK_GRID（grid），button，0，1，100，1）更改为gtk_grid_attach（GTK_GRID（grid），button，0，1，200，1）那么此代码的结果是：gtk_grid_attach(GTK_GRID(grid), button,0, 1, 200, 1)

为什么窗口的宽度增加？我发现窗口的大小可能会随gtk_grid_attach（）函数而变化。那么如何解决呢？

Answer 1

为什么窗口的宽度增加？