TIFFWarning.3tiff 2.6 KB

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  1. .\" $Id: TIFFWarning.3tiff,v 1.3 2012-06-01 22:02:44 fwarmerdam Exp $
  2. .\"
  3. .\" Copyright (c) 1988-1997 Sam Leffler
  4. .\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
  5. .\"
  6. .\" Permission to use, copy, modify, distribute, and sell this software and
  7. .\" its documentation for any purpose is hereby granted without fee, provided
  8. .\" that (i) the above copyright notices and this permission notice appear in
  9. .\" all copies of the software and related documentation, and (ii) the names of
  10. .\" Sam Leffler and Silicon Graphics may not be used in any advertising or
  11. .\" publicity relating to the software without the specific, prior written
  12. .\" permission of Sam Leffler and Silicon Graphics.
  13. .\"
  14. .\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
  15. .\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  16. .\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  17. .\"
  18. .\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
  19. .\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
  20. .\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  21. .\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  22. .\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  23. .\" OF THIS SOFTWARE.
  24. .\"
  25. .if n .po 0
  26. .TH TIFFWarning 3TIFF "October 15, 1995" "libtiff"
  27. .SH NAME
  28. TIFFWarning, TIFFSetWarningHandler \- library warning interface
  29. .SH SYNOPSIS
  30. .B "#include <tiffio.h>"
  31. .sp
  32. .BI "void TIFFWarning(const char *" module ", const char *" fmt ", " ... ")"
  33. .sp
  34. .B "#include <stdarg.h>"
  35. .sp
  36. .BI "typedef void (*TIFFWarningHandler)(const char *" module ", const char *" fmt ", va_list " ap ");"
  37. .sp
  38. .BI "TIFFWarningHandler TIFFSetWarningHandler(TIFFWarningHandler " handler ");"
  39. .SH DESCRIPTION
  40. .I TIFFWarning
  41. invokes the library-wide warning handler function to (normally) write a
  42. warning message to the
  43. .BR stderr .
  44. The
  45. .I fmt
  46. parameter is a
  47. .IR printf (3S)
  48. format string, and any number arguments can be supplied. The
  49. .I module
  50. parameter is interpreted as a string that, if non-zero, should be printed
  51. before the message; it typically is used to identify the software module in
  52. which a warning is detected.
  53. .PP
  54. Applications that desire to capture control in the event of a warning should
  55. use
  56. .IR TIFFSetWarningHandler
  57. to override the default warning handler.
  58. A
  59. .SM NULL
  60. (0) warning handler function may be installed to suppress error messages.
  61. .SH "RETURN VALUES"
  62. .IR TIFFSetWarningHandler
  63. returns a reference to the previous error handling function.
  64. .SH "SEE ALSO"
  65. .BR TIFFError (3TIFF),
  66. .BR libtiff (3TIFF),
  67. .BR printf (3)
  68. .PP
  69. Libtiff library home page:
  70. .BR http://www.remotesensing.org/libtiff/