Tcl_CreateCloseHandler, Tcl_DeleteCloseHandler - arrange for callbacks when channels are closed
Tcl_CreateCloseHandler(channel, proc, clientData)
Tcl_DeleteCloseHandler(channel, proc, clientData)
Tcl_CreateCloseHandler arranges for proc to be called when
channel is closed with Tcl_Close or
Tcl_UnregisterChannel, or using the Tcl close command.
Proc should match the following prototype:
- Tcl_Channel channel (in)
The channel for which to create or delete a close callback.
- Tcl_CloseProc *proc (in)
The procedure to call as the callback.
- ClientData clientData (in)
Arbitrary one-word value to pass to proc.
typedef void Tcl_CloseProc(
The clientData is the same as the value provided in the call to
Tcl_DeleteCloseHandler removes a close callback for channel.
The proc and clientData identify which close callback to
remove; Tcl_DeleteCloseHandler does nothing if its proc and
clientData arguments do not match the proc and clientData
for a close handler for channel.
close, Tcl_Close, Tcl_UnregisterChannel
callback, channel closing
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 1995-1997 Roger E. Critchlow Jr.
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