XtAddInput() XtAddInput()
Name
XtAddInput - register a procedure to be called when there is activity on a file descriptor.
Synopsis
XtInputId XtAddInput(source, condition, proc, client_data)
int source;
XtPointer condition;
XtInputCallbackProc proc;
XtPointer client_data;
Inputs
source Specifies the file descriptor (on a POSIX-based system) to monitor.
condition Specifies a mask that indicates a read, write, or exception condition or some operating-system-dependent condition.
proc Specifies the procedure that is to be called when condition occurs on source.
client_data
Specifies data to be passed to proc when it is invoked.
Returns
A handle of type XtInputId that can be passed to XtRemoveInput() to unregister this input procedure.
Availability
Superseded by XtAppAddInput().
Description
XtAddInput() registers a file descriptor source to be monitored by XtAppNextEvent() and a procedure proc to be called with data client_data
when the condition (such as "input ready" or "error") condition arises.
On a POSIX-based system, the supported values for condition are XtInputReadMask, XtInputWriteMask, or XtInputExceptMask. These values can-
not be ORed together.
Usage
XtAddInput() has been superseded by XtAppAddInput(), which performs the same function on a per-application context basis. XtAddInput() now
calls XtAppAddInput() passing the default application context created by XtInitialize(). Very few programs need multiple application con-
texts, and you can continue to use XtAddInput() if you initialize your application with XtInitialize(). We recommend, however, that you
use XtAppInitialize(), XtAppAddInput(), and the other XtApp*() application context specific functions.
See XtAppAddInput() for more information.
See AlsoXtAppAddInput(1), XtRemoveInput(1),
XtInputCallbackProc(2).
Xt - Event Handling XtAddInput()
Check Out this Related Man Page
XtAddInput(3) XT COMPATIBILITY FUNCTIONS XtAddInput(3)NAME
XtAddInput, XtAddTimeOut, XtAddWorkProc - register input, timeout, and workprocs
SYNTAX
XtInputId XtAddInput(int source, XtPointer condition, XtInputCallbackProc proc, XtPointer client_data);
XtIntervalId XtAddTimeOut(unsigned long interval, XtInputCallbackProc proc, XtPointer client_data);
XtWorkProcId XtAddWorkProc(XtWorkProc proc, XtPointer client_data);
ARGUMENTS
client_data
Specifies the argument that is to be passed to the specified procedure when input is available
condition Specifies the mask that indicates a read, write, or exception condition or some operating system dependent condition.
proc Specifies the procedure that is to be called when input is available.
source Specifies the source file descriptor on a UNIX-based system or other operating system dependent device specification.
DESCRIPTION
XtAddInput has been replaced by XtAppAddInput.
XtAddTimeOut has been replaced by XtAppAddTimeOut.
XtAddWorkProc has been replaced by XtAppAddWorkProc.
SEE ALSO XtAppAddInput(3), XtAppAddTimeOut(3), XtAppAddWorkProc(3)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
X Version 11 libXt 1.1.3 XtAddInput(3)
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