我一直在尝试制作一个使用活动窗口并将其显示在其窗口中的程序。我已经成功地超出了我的目标。但问题是,它使用了大量的内存,并且每帧更新(20fps)不断使用更多的内存。这是源代码:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <string.h>
#include <gdk/gdkx.h>
#include <gtk/gtk.h>
int funcfinished = 1;
GtkWidget *window;
GdkPixbuf *fupdate_pixbuf;
GtkStyle *fupdate_style;
GdkPixmap *fupdate_background;
gint fupdate_xorig;
gint fupdate_yorig;
gint fupdate_width;
gint fupdate_height;
GdkPixbuf *fupdate_screenshot;
GdkWindow *fupdate_window;
gboolean frameupdate()
{
if(funcfinished == 1)
{
/*********[FuncFinish]*********/
funcfinished = 0;
fupdate_pixbuf = NULL;
fupdate_style = NULL;
fupdate_background = NULL;
fupdate_screenshot = NULL;
fupdate_window = NULL;
fupdate_xorig = 0;
fupdate_yorig = 0;
fupdate_width = 0;
fupdate_height = 0;
/*********[Func]*********/
fupdate_window = gdk_screen_get_active_window(gdk_screen_get_default());
gdk_drawable_get_size(fupdate_window, &fupdate_width, &fupdate_height);
fupdate_pixbuf = gdk_pixbuf_get_from_drawable(NULL, fupdate_window, NULL, 0, 0, 0, 0, fupdate_width, fupdate_height);
gdk_pixbuf_render_pixmap_and_mask(fupdate_pixbuf, &fupdate_background, NULL, 0);
fupdate_style = gtk_style_new();
fupdate_style->bg_pixmap[0] = fupdate_background;
gtk_widget_set_style(GTK_WIDGET(window), GTK_STYLE(fupdate_style));
/*********[FuncFinish]*********/
fupdate_pixbuf = NULL;
fupdate_style = NULL;
fupdate_background = NULL;
fupdate_screenshot = NULL;
fupdate_window = NULL;
fupdate_xorig = 0;
fupdate_yorig = 0;
fupdate_width = 0;
fupdate_height = 0;
funcfinished = 1;
}
else
{
printf("Skipped 1 frame update");
}
return TRUE;
}
int main(int argc, char *argv[])
{
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), "Hay Day Autobot");
gtk_window_set_default_size(GTK_WINDOW(window), 400, 300);
g_signal_connect(window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
g_timeout_add(50, frameupdate, 0);
gtk_widget_show(window);
gtk_main();
return 0;
}
我还制作了一段视频,展示了这个问题: https ://www.youtube.com/watch?v=GNCwNetLLBM