Blank window for 5 seconds

3 files changed, 43 insertions, 0 deletions

diff --git a/.editorconfig b/.editorconfig
index c1e2c64..249febf 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -10,3 +10,6 @@ end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
+
+[Makefile]
+indent_style = tab
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..04b2567
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+build: xhorse.c
+	gcc -o xhorse.out xhorse.c -lxcb
diff --git a/xhorse.c b/xhorse.c
new file mode 100644
index 0000000..dec79c2
--- /dev/null
+++ b/xhorse.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <xcb/xcb.h>
+
+int main(void)
+{
+    xcb_connection_t *conn = xcb_connect(NULL, NULL);
+    if (!conn)
+    {
+        printf("xcb_connect() failed; conn = %p\n", conn);
+        return EXIT_FAILURE;
+    }
+    printf("connected to X; conn = %p\n", conn);
+
+    xcb_screen_t *scr = xcb_setup_roots_iterator(
+        xcb_get_setup(conn)
+    ).data;
+
+    xcb_window_t win = xcb_generate_id(conn);
+    xcb_create_window(conn, XCB_COPY_FROM_PARENT, win, scr->root,
+                      0, 0, 100, 100, 10, XCB_WINDOW_CLASS_INPUT_OUTPUT,
+                      scr->root_visual, 0, NULL);
+    xcb_map_window(conn, win);
+    xcb_flush(conn);
+    printf("window created; win = %d\n", win);
+
+    sleep(5);
+
+    xcb_unmap_window(conn, win);
+    xcb_flush(conn);
+    printf("window destroyed; win = %d\n", win);
+
+    xcb_disconnect(conn);
+    puts("disconnected from X");
+
+    return EXIT_SUCCESS;
+}