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24 lines
960 B
Zig
24 lines
960 B
Zig
const std = @import("std");
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const c = @import("ffi.zig").c;
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pub fn getHeadCount() !u32 {
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const connection = c.xcb_connect(null, null).?;
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if (c.xcb_connection_has_error(connection) > 0) return error.ConnectionFailed;
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defer c.xcb_disconnect(connection);
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var err: ?*c.xcb_generic_error_t = null;
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const is_active_cookie = c.xcb_xinerama_is_active(connection);
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const is_active_reply = c.xcb_xinerama_is_active_reply(connection, is_active_cookie, &err);
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if (err) |_| return error.FailedToQueryXinerama;
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defer std.c.free(is_active_reply);
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if (is_active_reply.*.state == 0) return error.XineramaInactive;
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const query_screens_cookie = c.xcb_xinerama_query_screens(connection);
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const query_screens_reply = c.xcb_xinerama_query_screens_reply(connection, query_screens_cookie, &err);
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if (err) |_| return error.FailedToQueryXinerama;
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defer std.c.free(query_screens_reply);
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return query_screens_reply.*.number;
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}
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