mitem_new.3x 3.9 KB

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  30. .\" $Id: mitem_new.3x,v 1.10 2006/11/04 18:16:36 tom Exp $
  31. .TH mitem_new 3X ""
  32. .SH NAME
  33. \fBmitem_new\fR - create and destroy menu items
  34. .SH SYNOPSIS
  35. \fB#include <menu.h>\fR
  36. .br
  37. ITEM *new_item(const char *name, const char *description);
  38. .br
  39. int free_item(ITEM *item);
  40. .br
  41. .SH DESCRIPTION
  42. The function \fBnew_item\fR allocates a new item and initializes it from the
  43. \fBname\fR and \fBdescription\fR pointers. Please notice that the item stores
  44. only the pointers to the name and description. Those pointers must be valid
  45. during the lifetime of the item. So you should be very careful with names
  46. or descriptions allocated on the stack of some routines.
  47. .br
  48. The function \fBfree_item\fR de-allocates an item. Please notice that it
  49. is the responsibility of the application to release the memory for the
  50. name or the description of the item.
  51. .SH RETURN VALUE
  52. The function \fBnew_item\fR returns \fBNULL\fR on error.
  53. It sets errno according to the function's failure:
  54. .TP 5
  55. .B E_BAD_ARGUMENT
  56. Routine detected an incorrect or out-of-range argument.
  57. .TP 5
  58. .B E_SYSTEM_ERROR
  59. System error occurred, e.g., malloc failure.
  60. .PP
  61. The function \fBfree_item\fR returns one of the following:
  62. .TP 5
  63. .B E_OK
  64. The routine succeeded.
  65. .TP 5
  66. .B E_BAD_ARGUMENT
  67. Routine detected an incorrect or out-of-range argument.
  68. .TP 5
  69. .B E_CONNECTED
  70. Item is connected to a menu.
  71. .TP 5
  72. .B E_SYSTEM_ERROR
  73. System error occurred (see \fBerrno\fR).
  74. .SH SEE ALSO
  75. \fBcurses\fR(3X), \fBmenu\fR(3X).
  76. .SH NOTES
  77. The header file \fB<menu.h>\fR automatically includes the header file
  78. \fB<curses.h>\fR.
  79. .SH PORTABILITY
  80. These routines emulate the System V menu library. They were not supported on
  81. Version 7 or BSD versions.
  82. .SH AUTHORS
  83. Juergen Pfeifer. Manual pages and adaptation for new curses by Eric
  84. S. Raymond.
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