https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_ChannelSeekProc.3tcl.html
Ubuntu Manpage: Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
ubuntumanpagetcl
https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_ClearChannelHandlers.3tcl.html
Ubuntu Manpage: Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
ubuntumanpagetcl
https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_ChannelHandlerProc.3tcl.html
Ubuntu Manpage: Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
ubuntumanpagetcl
https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_ChannelOutputProc.3tcl.html
Ubuntu Manpage: Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
ubuntumanpagetcl
https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_ChannelClose2Proc.3tcl.html
Ubuntu Manpage: Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
ubuntumanpagetcl
https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_IsChannelExisting.3tcl.html
Ubuntu Manpage: Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
ubuntumanpagetcl
https://manpages.ubuntu.com/manpages/xenial/man3/Tcl_ChannelCloseProc.3tcl.html
Ubuntu Manpage: Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
ubuntumanpagetcl