func (lv *LogView) PostAppendText(value string) {
lv.logChan <- value
win.PostMessage(lv.Handle(), TEM_APPENDTEXT, 0, 0)
}
// Synchronize enqueues func f to be called some time later by the main
// goroutine from inside a message loop.
func (wb *WindowBase) Synchronize(f func()) {
synchronize(f)
win.PostMessage(wb.hWnd, syncMsgId, 0, 0)
}