payloads/libpayload/curses/PDCurses/win32/pdcclip.c

   1 /* Public Domain Curses */
   2
   3 #include "pdcwin.h"
   4
   5 RCSID("$Id: pdcclip.c,v 1.30 2008/07/14 04:24:52 wmcbrine Exp $")
   6
   7 /*man-start**************************************************************
   8
   9   Name:                                                         clipboard
  10
  11   Synopsis:
  12         int PDC_getclipboard(char **contents, long *length);
  13         int PDC_setclipboard(const char *contents, long length);
  14         int PDC_freeclipboard(char *contents);
  15         int PDC_clearclipboard(void);
  16
  17   Description:
  18         PDC_getclipboard() gets the textual contents of the system's
  19         clipboard. This function returns the contents of the clipboard
  20         in the contents argument. It is the responsibilitiy of the
  21         caller to free the memory returned, via PDC_freeclipboard().
  22         The length of the clipboard contents is returned in the length
  23         argument.
  24
  25         PDC_setclipboard copies the supplied text into the system's
  26         clipboard, emptying the clipboard prior to the copy.
  27
  28         PDC_clearclipboard() clears the internal clipboard.
  29
  30   Return Values:
  31         indicator of success/failure of call.
  32         PDC_CLIP_SUCCESS        the call was successful
  33         PDC_CLIP_MEMORY_ERROR   unable to allocate sufficient memory for
  34                                 the clipboard contents
  35         PDC_CLIP_EMPTY          the clipboard contains no text
  36         PDC_CLIP_ACCESS_ERROR   no clipboard support
  37
  38   Portability                                X/Open    BSD    SYS V
  39         PDC_getclipboard                        -       -       -
  40         PDC_setclipboard                        -       -       -
  41         PDC_freeclipboard                       -       -       -
  42         PDC_clearclipboard                      -       -       -
  43
  44 **man-end****************************************************************/
  45
  46 #ifdef PDC_WIDE
  47 # define PDC_TEXT CF_UNICODETEXT
  48 #else
  49 # define PDC_TEXT CF_OEMTEXT
  50 #endif
  51
  52 int PDC_getclipboard(char **contents, long *length)
  53 {
  54     HANDLE handle;
  55     long len;
  56
  57     PDC_LOG(("PDC_getclipboard() - called\n"));
  58
  59     if (!OpenClipboard(NULL))
  60         return PDC_CLIP_ACCESS_ERROR;
  61
  62     if ((handle = GetClipboardData(PDC_TEXT)) == NULL)
  63     {
  64         CloseClipboard();
  65         return PDC_CLIP_EMPTY;
  66     }
  67
  68 #ifdef PDC_WIDE
  69     len = wcslen((wchar_t *)handle) * 3;
  70 #else
  71     len = strlen((char *)handle);
  72 #endif
  73     *contents = (char *)GlobalAlloc(GMEM_FIXED, len + 1);
  74
  75     if (!*contents)
  76     {
  77         CloseClipboard();
  78         return PDC_CLIP_MEMORY_ERROR;
  79     }
  80
  81 #ifdef PDC_WIDE
  82     len = PDC_wcstombs((char *)*contents, (wchar_t *)handle, len);
  83 #else
  84     strcpy((char *)*contents, (char *)handle);
  85 #endif
  86     *length = len;
  87     CloseClipboard();
  88
  89     return PDC_CLIP_SUCCESS;
  90 }
  91
  92 int PDC_setclipboard(const char *contents, long length)
  93 {
  94     HGLOBAL ptr1;
  95     LPTSTR ptr2;
  96
  97     PDC_LOG(("PDC_setclipboard() - called\n"));
  98
  99     if (!OpenClipboard(NULL))
 100         return PDC_CLIP_ACCESS_ERROR;
 101
 102     ptr1 = GlobalAlloc(GMEM_MOVEABLE|GMEM_DDESHARE,
 103         (length + 1) * sizeof(TCHAR));
 104
 105     if (!ptr1)
 106         return PDC_CLIP_MEMORY_ERROR;
 107
 108     ptr2 = GlobalLock(ptr1);
 109
 110 #ifdef PDC_WIDE
 111     PDC_mbstowcs((wchar_t *)ptr2, contents, length);
 112 #else
 113     memcpy((char *)ptr2, contents, length + 1);
 114 #endif
 115     GlobalUnlock(ptr1);
 116     EmptyClipboard();
 117
 118     if (!SetClipboardData(PDC_TEXT, ptr1))
 119     {
 120         GlobalFree(ptr1);
 121         return PDC_CLIP_ACCESS_ERROR;
 122     }
 123
 124     CloseClipboard();
 125     GlobalFree(ptr1);
 126
 127     return PDC_CLIP_SUCCESS;
 128 }
 129
 130 int PDC_freeclipboard(char *contents)
 131 {
 132     PDC_LOG(("PDC_freeclipboard() - called\n"));
 133
 134     GlobalFree(contents);
 135     return PDC_CLIP_SUCCESS;
 136 }
 137
 138 int PDC_clearclipboard(void)
 139 {
 140     PDC_LOG(("PDC_clearclipboard() - called\n"));
 141
 142     EmptyClipboard();
 143
 144     return PDC_CLIP_SUCCESS;
 145 }