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- .\"
- .\" Copyright (c) 1988-1997 Sam Leffler
- .\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
- .\"
- .\" Permission to use, copy, modify, distribute, and sell this software and
- .\" its documentation for any purpose is hereby granted without fee, provided
- .\" that (i) the above copyright notices and this permission notice appear in
- .\" all copies of the software and related documentation, and (ii) the names of
- .\" Sam Leffler and Silicon Graphics may not be used in any advertising or
- .\" publicity relating to the software without the specific, prior written
- .\" permission of Sam Leffler and Silicon Graphics.
- .\"
- .\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
- .\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
- .\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- .\"
- .\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
- .\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
- .\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- .\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
- .\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- .\" OF THIS SOFTWARE.
- .\"
- .if n .po 0
- .TH TIFFWarning 3TIFF "October 15, 1995" "libtiff"
- .SH NAME
- TIFFWarning, TIFFSetWarningHandler \- library warning interface
- .SH SYNOPSIS
- .B "#include <tiffio.h>"
- .sp
- .BI "void TIFFWarning(const char *" module ", const char *" fmt ", " ... ")"
- .sp
- .B "#include <stdarg.h>"
- .sp
- .BI "typedef void (*TIFFWarningHandler)(const char *" module ", const char *" fmt ", va_list " ap ");"
- .sp
- .BI "TIFFWarningHandler TIFFSetWarningHandler(TIFFWarningHandler " handler ");"
- .SH DESCRIPTION
- .I TIFFWarning
- invokes the library-wide warning handler function to (normally) write a
- warning message to the
- .BR stderr .
- The
- .I fmt
- parameter is a
- .IR printf (3S)
- format string, and any number arguments can be supplied. The
- .I module
- parameter is interpreted as a string that, if non-zero, should be printed
- before the message; it typically is used to identify the software module in
- which a warning is detected.
- .PP
- Applications that desire to capture control in the event of a warning should
- use
- .IR TIFFSetWarningHandler
- to override the default warning handler.
- A
- .SM NULL
- (0) warning handler function may be installed to suppress error messages.
- .SH "RETURN VALUES"
- .IR TIFFSetWarningHandler
- returns a reference to the previous error handling function.
- .SH "SEE ALSO"
- .BR TIFFError (3TIFF),
- .BR libtiff (3TIFF),
- .BR printf (3)
- .PP
- Libtiff library home page:
- .BR http://www.simplesystems.org/libtiff/
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