payloads/libpayload/curses/PDCurses-3.4/os2/pdcclip.c

   1 /* Public Domain Curses */
   2
   3 #include "pdcos2.h"
   4
   5 RCSID("$Id: pdcclip.c,v 1.33 2008/07/14 04:24:51 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 int PDC_getclipboard(char **contents, long *length)
  47 {
  48 #ifndef EMXVIDEO
  49     HMQ hmq;
  50     HAB hab;
  51     PTIB ptib;
  52     PPIB ppib;
  53     ULONG ulRet;
  54     long len;
  55     int rc;
  56 #endif
  57     PDC_LOG(("PDC_getclipboard() - called\n"));
  58
  59 #ifndef EMXVIDEO
  60     DosGetInfoBlocks(&ptib, &ppib);
  61     ppib->pib_ultype = 3;
  62     hab = WinInitialize(0);
  63     hmq = WinCreateMsgQueue(hab, 0);
  64
  65     if (!WinOpenClipbrd(hab))
  66     {
  67         WinDestroyMsgQueue(hmq);
  68         WinTerminate(hab);
  69         return PDC_CLIP_ACCESS_ERROR;
  70     }
  71
  72     rc = PDC_CLIP_EMPTY;
  73
  74     ulRet = WinQueryClipbrdData(hab, CF_TEXT);
  75
  76     if (ulRet)
  77     {
  78         len = strlen((char *)ulRet);
  79         *contents = malloc(len + 1);
  80
  81         if (!*contents)
  82             rc = PDC_CLIP_MEMORY_ERROR;
  83         else
  84         {
  85             strcpy((char *)*contents, (char *)ulRet);
  86             *length = len;
  87             rc = PDC_CLIP_SUCCESS;
  88         }
  89     }
  90
  91     WinCloseClipbrd(hab);
  92     WinDestroyMsgQueue(hmq);
  93     WinTerminate(hab);
  94
  95     return rc;
  96 #else
  97     return PDC_CLIP_ACCESS_ERROR;
  98 #endif
  99 }
 100
 101 int PDC_setclipboard(const char *contents, long length)
 102 {
 103 #ifndef EMXVIDEO
 104     HAB hab;
 105     PTIB ptib;
 106     PPIB ppib;
 107     ULONG ulRC;
 108     PSZ szTextOut = NULL;
 109     int rc;
 110 #endif
 111     PDC_LOG(("PDC_setclipboard() - called\n"));
 112
 113 #ifndef EMXVIDEO
 114     DosGetInfoBlocks(&ptib, &ppib);
 115     ppib->pib_ultype = 3;
 116     hab = WinInitialize(0);
 117
 118     if (!WinOpenClipbrd(hab))
 119     {
 120         WinTerminate(hab);
 121         return PDC_CLIP_ACCESS_ERROR;
 122     }
 123
 124     rc = PDC_CLIP_MEMORY_ERROR;
 125
 126     ulRC = DosAllocSharedMem((PVOID)&szTextOut, NULL, length + 1,
 127                              PAG_WRITE | PAG_COMMIT | OBJ_GIVEABLE);
 128
 129     if (ulRC == 0)
 130     {
 131         strcpy(szTextOut, contents);
 132         WinEmptyClipbrd(hab);
 133
 134         if (WinSetClipbrdData(hab, (ULONG)szTextOut, CF_TEXT, CFI_POINTER))
 135             rc = PDC_CLIP_SUCCESS;
 136         else
 137         {
 138             DosFreeMem(szTextOut);
 139             rc = PDC_CLIP_ACCESS_ERROR;
 140         }
 141     }
 142
 143     WinCloseClipbrd(hab);
 144     WinTerminate(hab);
 145
 146     return rc;
 147 #else
 148     return PDC_CLIP_ACCESS_ERROR;
 149 #endif
 150 }
 151
 152 int PDC_freeclipboard(char *contents)
 153 {
 154     PDC_LOG(("PDC_freeclipboard() - called\n"));
 155
 156     if (contents)
 157         free(contents);
 158
 159     return PDC_CLIP_SUCCESS;
 160 }
 161
 162 int PDC_clearclipboard(void)
 163 {
 164 #ifndef EMXVIDEO
 165     HAB hab;
 166     PTIB ptib;
 167     PPIB ppib;
 168 #endif
 169     PDC_LOG(("PDC_clearclipboard() - called\n"));
 170
 171 #ifndef EMXVIDEO
 172     DosGetInfoBlocks(&ptib, &ppib);
 173     ppib->pib_ultype = 3;
 174     hab = WinInitialize(0);
 175
 176     WinEmptyClipbrd(hab);
 177
 178     WinCloseClipbrd(hab);
 179     WinTerminate(hab);
 180
 181     return PDC_CLIP_SUCCESS;
 182 #else
 183     return PDC_CLIP_ACCESS_ERROR;
 184 #endif
 185 }