xfixes

[BurntSushi]

This program:

package main

import (
    "log"

    "github.com/BurntSushi/xgb/xfixes"
    "github.com/BurntSushi/xgb/xproto"

    "github.com/BurntSushi/xgbutil"
    "github.com/BurntSushi/xgbutil/xevent"
    "github.com/BurntSushi/xgbutil/xwindow"
)

func assert(err error) {
    if err != nil {
        log.Fatalln(err)
    }
}

func main() {
    log.SetFlags(0)

    X, err := xgbutil.NewConn()
    assert(err)

    assert(xfixes.Init(X.Conn()))

    win, err := xwindow.Generate(X)
    assert(err)
    win.Create(X.RootWin(), 0, 0, 200, 200,
        xproto.CwBackPixel | xproto.CwEventMask,
        0x3366ff, xproto.EventMaskStructureNotify)
    xevent.MapNotifyFun(
        func(X *xgbutil.XUtil, ev xevent.MapNotifyEvent) {
            assert(xfixes.HideCursorChecked(X.Conn(), win.Id).Check())
        }).Connect(X, win.Id)
    win.Map()

    xevent.Main(X)
}

Fails with:

BadRequest {NiceName: Request, Sequence: 8, BadValue: 58720259, MinorOpcode: 29, MajorOpcode: 138}

Similar errors occur with any other request in the XFIXES extension. But extension initialization is successful. What's going on?

[KenjiTakahashi]

FYI: You have to call QueryVersion after Init and before any other requests. Apparently that's the way it works. In C, XFixesQueryExtension function seems to be calling this internally, maybe xgb should do the same?