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我想写一个小应用程序，以了解evas如何与X11一起使用。 我没有在文档中找到完整的示例，只尝试使用一些部分。 下面是代码：Evas和X11示例
#include <stdio.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#include <Evas.h>
#include <Evas_Engine_Software_X11.h>
/*
gcc -o evas_software_x11 evas_software_x11.c $(pkg-config --libs --cflags x11 evas)
*/
#define WIDTH 640
#define HEIGHT 480
int main(int argc, char **argv)
{
Evas *canevas;
Evas_Engine_Info_Software_X11 *einfo;
Display * display;
Window win;
display = XOpenDisplay(NULL);
int s;
XEvent e;
s = DefaultScreen(display);
win = XCreateSimpleWindow( display,
RootWindow(display, s),
10,10,WIDTH,HEIGHT,1,
BlackPixel(display, s),
WhitePixel(display, s));
XSelectInput(display, win, ExposureMask | KeyPressMask);
evas_init();
/*Création et configuration du canevas*/
canevas = evas_new();
evas_output_method_set(canevas, evas_render_method_lookup("software_x11"));
evas_output_size_set(canevas, WIDTH, HEIGHT);
evas_output_viewport_set(canevas, 0, 0, WIDTH, HEIGHT);
einfo = NULL;
einfo = (Evas_Engine_Info_Software_X11 *) evas_engine_info_get(canevas);
if(!einfo)
{
printf("einfo not valide\n");
exit(EXIT_FAILURE);
}
einfo->info.display = display;
einfo->info.visual = DefaultVisual(display, DefaultScreen(display));
einfo->info.colormap = DefaultColormap(display, DefaultScreen(display));
einfo->info.drawable = win;
einfo->info.depth = DefaultDepth(display, DefaultScreen(display));
evas_engine_info_set(canevas, (Evas_Engine_Info *) einfo);
/*Création d'un fond et d'un rectangle pour l'exemple*/
Evas_Object * bg, *rect;
bg = evas_object_rectangle_add(canevas);
evas_object_move(bg, 0, 0);
evas_object_resize(bg, WIDTH, HEIGHT);
evas_object_color_set(bg, 0, 128, 0, 128); // 50% opaque vert
eavs_object_show(bg);
rect = evas_object_rectangle_add(canevas);
evas_object_move(rect, 20, 20);
evas_object_resize(rect, 100, 100);
evas_object_color_set(rect, 255, 0, 0, 255); // opaque rouge
eavs_object_show(rect);
evas_render(canevas);
while(1) {
XnextEvent(display, &e);
if (e.type == Expose)
{
}
if (e.type == KeyPress)
break;
}
evas_free(canevas);
evas_shutdown();
XCloseDisplay(d);
return EXIT_SUCCESS;
}
当我编译它，我有这样的错误：
gcc -o evas_software_x11 evas_software_x11.c $(pkg-config --libs --cflags evas x11)
evas_software_x11.c: In function ‘main’:
evas_software_x11.c:45:14: erreur: ‘struct <anonymous>’ has no member named ‘display’
einfo->info.display = display;
^
但部分einfo-> info.display =显示来自官方文档：
任何想法，我已经做了一个错误？