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787 lines
22 KiB
787 lines
22 KiB
/*++
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* File name:
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*
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* Contents:
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* Clipboard functions
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*
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* Copyright (C) 1998-1999 Microsoft Corp.
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--*/
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#include <windows.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <io.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#ifdef _CLPUTIL
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enum {ERROR_MESSAGE = 0, WARNING_MESSAGE, INFO_MESSAGE, ALIVE_MESSAGE};
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#define TRACE(_x_) LocalPrintMessage _x_
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#else // !_CLPUTIL
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#include "protocol.h"
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/*
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* Externals
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*/
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extern void (__cdecl *g_pfnPrintMessage) (INT, LPCSTR, ...);
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#define TRACE(_x_) if (g_pfnPrintMessage) {\
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g_pfnPrintMessage(INFO_MESSAGE, "Worker:%d ", GetCurrentThreadId());\
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g_pfnPrintMessage _x_; }
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#endif // !_CLPUTIL
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typedef struct _CLIPBOARDFORMATS {
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UINT uiFormat;
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LPCSTR szFormat;
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} CLIPBOARDFORMATS, *PCLIPBOARDFORMATS;
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const CLIPBOARDFORMATS KnownFormats[] =
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{
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{CF_TEXT, "Text"},
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{CF_BITMAP, "Bitmap"},
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{CF_METAFILEPICT, "MetaFile"},
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{CF_SYLK, "Sylk"},
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{CF_DIF, "DIF"},
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{CF_TIFF, "TIFF"},
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{CF_OEMTEXT, "OEMText"},
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{CF_DIB, "DIB"},
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{CF_PALETTE, "Palette"},
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{CF_PENDATA, "PenData"},
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{CF_RIFF, "Riff"},
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{CF_WAVE, "Wave"},
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{CF_UNICODETEXT,"Unicode"},
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{CF_ENHMETAFILE,"ENHMetafile"},
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{CF_HDROP, "HDROP"},
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{CF_LOCALE, "Locale"},
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{CF_DIBV5, "DIBV5"}
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};
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typedef struct {
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UINT32 mm;
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UINT32 xExt;
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UINT32 yExt;
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} CLIPBOARD_MFPICT, *PCLIPBOARD_MFPICT;
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/*
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* Clipboard functions definitions
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*/
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VOID
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Clp_ListAllFormats(VOID);
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//VOID
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//Clp_ListAllAvailableFormats(VOID);
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UINT
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Clp_GetClipboardFormat(CHAR *szFormatLookup);
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VOID
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Clp_PutIntoClipboard(CHAR *g_szFileName);
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VOID
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Clp_GetClipboardData(
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UINT format,
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HGLOBAL hClipData,
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INT *pnClipDataSize,
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HGLOBAL *phNewData);
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BOOL
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Clp_SetClipboardData(
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UINT formatID,
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HGLOBAL hClipData,
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INT nClipDataSize,
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BOOL *pbFreeHandle);
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HGLOBAL
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Clp_GetMFData(HANDLE hData,
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PUINT pDataLen);
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HGLOBAL
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Clp_SetMFData(UINT dataLen,
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PVOID pData);
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VOID
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_cdecl LocalPrintMessage(INT errlevel, CHAR *format, ...);
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VOID
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Clp_ListAllFormats(VOID)
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{
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UINT format = 0;
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CHAR szFormatName[_MAX_PATH];
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while ((format = EnumClipboardFormats(format)))
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{
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*szFormatName = 0;
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GetClipboardFormatName(format, szFormatName, _MAX_PATH);
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if (!(*szFormatName))
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// No format, check for known format
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{
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INT fmti, fmtnum;
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fmtnum = sizeof(KnownFormats)/sizeof(KnownFormats[0]);
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for (fmti = 0;
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KnownFormats[fmti].uiFormat != format
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&&
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fmti < fmtnum;
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fmti ++);
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if (fmti < fmtnum)
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strcpy(szFormatName, KnownFormats[fmti].szFormat);
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}
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if (*szFormatName)
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{
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TRACE((INFO_MESSAGE, "%s[%d(0x%X)]\n", szFormatName, format, format));
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} else {
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TRACE((ERROR_MESSAGE, "Can't find format name for: 0x%x\n", format));
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}
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}
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}
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/*
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VOID
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Clp_ListAllAvailableFormats(VOID)
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{
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UINT format = 0;
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CHAR szFormatName[_MAX_PATH];
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while ((format = EnumClipboardFormats(format)))
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{
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if (!IsClipboardFormatAvailable(format))
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// Skip the unavalable formats
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continue;
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*szFormatName = 0;
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GetClipboardFormatName(format, szFormatName, _MAX_PATH);
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if (!(*szFormatName))
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// No format, check for known format
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{
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INT fmti, fmtnum;
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fmtnum = sizeof(KnownFormats)/sizeof(KnownFormats[0]);
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for (fmti = 0;
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KnownFormats[fmti].uiFormat != format
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&&
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fmti < fmtnum;
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fmti ++);
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if (fmti < fmtnum)
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strcpy(szFormatName, KnownFormats[fmti].szFormat);
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}
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if (*szFormatName)
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TRACE((INFO_MESSAGE, "%s\n", szFormatName));
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else
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TRACE((ERROR_MESSAGE, "Can't find format name for: 0x%x\n", format));
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}
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}
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*/
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UINT
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Clp_GetClipboardFormat(CHAR *szFormatLookup)
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// Returns the clipboard ID
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{
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UINT format = 0;
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CHAR szFormatName[_MAX_PATH];
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BOOL bFound = FALSE;
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*szFormatName = 0;
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while (!bFound && (format = EnumClipboardFormats(format)))
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{
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if (!IsClipboardFormatAvailable(format))
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// Skip the unavalable formats
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continue;
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*szFormatName = 0;
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GetClipboardFormatName(format, szFormatName, _MAX_PATH);
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if (!(*szFormatName))
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// No format, check for known format
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{
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INT fmti, fmtnum;
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fmtnum = sizeof(KnownFormats)/sizeof(KnownFormats[0]);
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for (fmti = 0;
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KnownFormats[fmti].uiFormat != format
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&&
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fmti < fmtnum;
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fmti ++);
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if (fmti < fmtnum)
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strcpy(szFormatName, KnownFormats[fmti].szFormat);
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}
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bFound = (_stricmp(szFormatName, szFormatLookup) == 0);
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}
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return format;
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}
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VOID
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Clp_PutIntoClipboard(CHAR *szFileName)
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{
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INT hFile = -1;
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LONG clplength = 0;
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UINT uiFormat = 0;
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HGLOBAL ghClipData = NULL;
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PBYTE pClipData = NULL;
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BOOL bClipboardOpen = FALSE;
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BOOL bFreeClipHandle = TRUE;
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hFile = _open(szFileName, _O_RDONLY|_O_BINARY);
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if (hFile == -1)
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{
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TRACE((ERROR_MESSAGE, "Error opening file: %s. errno=%d\n", szFileName, errno));
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goto exitpt;
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}
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clplength = _filelength(hFile) - sizeof(uiFormat);
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if (_read(hFile, &uiFormat, sizeof(uiFormat)) != sizeof(uiFormat))
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{
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TRACE((ERROR_MESSAGE, "Error reading from file. errno=%d\n", errno));
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goto exitpt;
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}
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ghClipData = GlobalAlloc(GMEM_MOVEABLE|GMEM_DDESHARE, clplength);
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if (!ghClipData)
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{
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TRACE((ERROR_MESSAGE, "Can't allocate %d bytes\n", clplength));
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goto exitpt;
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}
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pClipData = GlobalLock(ghClipData);
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if (!pClipData)
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{
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TRACE((ERROR_MESSAGE, "Can't lock handle 0x%x\n", ghClipData));
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goto exitpt;
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}
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if (_read(hFile, pClipData, clplength) != clplength)
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{
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TRACE((ERROR_MESSAGE, "Error reading from file. errno=%d\n", errno));
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goto exitpt;
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}
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GlobalUnlock(ghClipData);
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if (!OpenClipboard(NULL))
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{
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TRACE((ERROR_MESSAGE, "Can't open the clipboard. GetLastError=%d\n",
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GetLastError()));
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goto exitpt;
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}
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bClipboardOpen = TRUE;
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// Empty the clipboard, so we'll have only one entry
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EmptyClipboard();
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if (!Clp_SetClipboardData(uiFormat, ghClipData, clplength, &bFreeClipHandle))
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{
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TRACE((ERROR_MESSAGE, "SetClipboardData failed.\n"));
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} else {
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TRACE((INFO_MESSAGE, "Clipboard is loaded successfuly. File: %s, %d bytes\n",
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szFileName,
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clplength));
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}
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exitpt:
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// Do the cleanup
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// Close the clipboard
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if (bClipboardOpen)
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CloseClipboard();
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// Release the clipboard handle
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if (pClipData)
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GlobalUnlock(ghClipData);
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if (ghClipData && bFreeClipHandle)
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GlobalFree(ghClipData);
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// Close the file
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if (hFile != -1)
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_close(hFile);
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}
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VOID
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Clp_GetClipboardData(
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UINT format,
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HGLOBAL hClipData,
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INT *pnClipDataSize,
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HGLOBAL *phNewData)
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{
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HGLOBAL hData = hClipData;
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DWORD dataLen = 0;
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WORD numEntries;
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DWORD dwEntries;
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PVOID pData;
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*phNewData = NULL;
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*pnClipDataSize = 0;
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if (format == CF_PALETTE)
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{
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/****************************************************************/
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/* Find out how many entries there are in the palette and */
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/* allocate enough memory to hold them all. */
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/****************************************************************/
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if (GetObject(hData, sizeof(numEntries), (LPSTR)&numEntries) == 0)
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{
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numEntries = 256;
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}
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dataLen = sizeof(LOGPALETTE) +
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((numEntries - 1) * sizeof(PALETTEENTRY));
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*phNewData = GlobalAlloc(GHND, dataLen);
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if (*phNewData == 0)
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{
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TRACE((ERROR_MESSAGE, "Failed to get %d bytes for palette", dataLen));
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goto exitpt;
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}
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else
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{
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/************************************************************/
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/* now get the palette entries into the new buffer */
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/************************************************************/
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pData = GlobalLock(*phNewData);
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dwEntries = (WORD)GetPaletteEntries((HPALETTE)hData,
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0,
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numEntries,
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(PALETTEENTRY*)pData);
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GlobalUnlock(*phNewData);
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if (dwEntries == 0)
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{
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TRACE((ERROR_MESSAGE, "Failed to get any palette entries"));
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goto exitpt;
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}
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dataLen = dwEntries * sizeof(PALETTEENTRY);
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}
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} else if (format == CF_METAFILEPICT)
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{
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*phNewData = Clp_GetMFData(hData, &dataLen);
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if (!*phNewData)
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{
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TRACE((ERROR_MESSAGE, "Failed to set MF data"));
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goto exitpt;
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}
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} else {
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if (format == CF_DIB)
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{
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// Get the exact DIB size
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BITMAPINFOHEADER *pBMI = GlobalLock(hData);
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if (pBMI)
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{
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if (pBMI->biSizeImage)
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dataLen = pBMI->biSize + pBMI->biSizeImage;
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GlobalUnlock(hData);
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}
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}
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/****************************************************************/
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/* just get the length of the block */
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/****************************************************************/
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if (!dataLen)
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dataLen = (DWORD)GlobalSize(hData);
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}
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*pnClipDataSize = dataLen;
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exitpt:
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;
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}
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BOOL
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Clp_SetClipboardData(
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UINT formatID,
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HGLOBAL hClipData,
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INT nClipDataSize,
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BOOL *pbFreeHandle)
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{
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BOOL rv = FALSE;
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PVOID pData = NULL;
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HGLOBAL hData = NULL;
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LOGPALETTE *pLogPalette = NULL;
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UINT numEntries, memLen;
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if (!pbFreeHandle)
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goto exitpt;
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*pbFreeHandle = TRUE;
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if (formatID == CF_METAFILEPICT)
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{
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/********************************************************************/
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/* We have to put a handle to the metafile on the clipboard - which */
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/* means creating a metafile from the received data first */
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/********************************************************************/
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pData = GlobalLock(hClipData);
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if (!pData)
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{
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TRACE((ERROR_MESSAGE, "Failed to lock buffer\n"));
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goto exitpt;
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}
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hData = Clp_SetMFData(nClipDataSize, pData);
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if (!hData)
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{
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TRACE((ERROR_MESSAGE, "Failed to set MF data\n"));
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}
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else if (SetClipboardData(formatID, hData) != hData)
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{
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TRACE((ERROR_MESSAGE, "SetClipboardData. GetLastError=%d\n", GetLastError()));
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}
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GlobalUnlock(hClipData);
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} else if (formatID == CF_PALETTE)
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{
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/********************************************************************/
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/* We have to put a handle to the palette on the clipboard - again */
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/* this means creating one from the received data first */
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/* */
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/* Allocate memory for a LOGPALETTE structure large enough to hold */
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/* all the PALETTE ENTRY structures, and fill it in. */
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/********************************************************************/
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numEntries = (nClipDataSize / sizeof(PALETTEENTRY));
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memLen = (sizeof(LOGPALETTE) +
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((numEntries - 1) * sizeof(PALETTEENTRY)));
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pLogPalette = malloc(memLen);
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if (!pLogPalette)
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{
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TRACE((ERROR_MESSAGE, "Failed to get %d bytes", memLen));
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goto exitpt;
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}
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pLogPalette->palVersion = 0x300;
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pLogPalette->palNumEntries = (WORD)numEntries;
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/********************************************************************/
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/* get a pointer to the data and copy it to the palette */
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/********************************************************************/
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pData = GlobalLock(hClipData);
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if (pData == NULL)
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{
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TRACE((ERROR_MESSAGE, "Failed to lock buffer"));
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goto exitpt;
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}
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memcpy(pLogPalette->palPalEntry, pData, nClipDataSize);
|
|
|
|
/********************************************************************/
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/* unlock the buffer */
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/********************************************************************/
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GlobalUnlock(hClipData);
|
|
|
|
/********************************************************************/
|
|
/* now create a palette */
|
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/********************************************************************/
|
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hData = CreatePalette(pLogPalette);
|
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if (!hData)
|
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{
|
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TRACE((ERROR_MESSAGE, "CreatePalette failed\n"));
|
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goto exitpt;
|
|
}
|
|
|
|
/********************************************************************/
|
|
/* and set the palette handle to the Clipboard */
|
|
/********************************************************************/
|
|
if (SetClipboardData(formatID, hData) != hData)
|
|
{
|
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TRACE((ERROR_MESSAGE, "SetClipboardData. GetLastError=%d\n", GetLastError()));
|
|
}
|
|
} else {
|
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/****************************************************************/
|
|
/* Just set it onto the clipboard */
|
|
/****************************************************************/
|
|
if (SetClipboardData(formatID, hClipData) != hClipData)
|
|
{
|
|
TRACE((ERROR_MESSAGE, "SetClipboardData. GetLastError=%d, hClipData=0x%x\n", GetLastError(), hClipData));
|
|
goto exitpt;
|
|
}
|
|
|
|
// Only in this case we don't need to free the handle
|
|
*pbFreeHandle = FALSE;
|
|
|
|
}
|
|
|
|
rv = TRUE;
|
|
|
|
exitpt:
|
|
if (!pLogPalette)
|
|
{
|
|
free(pLogPalette);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
HGLOBAL Clp_GetMFData(HANDLE hData,
|
|
PUINT pDataLen)
|
|
{
|
|
UINT lenMFBits = 0;
|
|
BOOL rc = FALSE;
|
|
LPMETAFILEPICT pMFP = NULL;
|
|
HDC hMFDC = NULL;
|
|
HMETAFILE hMF = NULL;
|
|
HGLOBAL hMFBits = NULL;
|
|
HANDLE hNewData = NULL;
|
|
CHAR *pNewData = NULL;
|
|
PVOID pBits = NULL;
|
|
|
|
/************************************************************************/
|
|
/* Lock the memory to get a pointer to a METAFILEPICT header structure */
|
|
/* and create a METAFILEPICT DC. */
|
|
/************************************************************************/
|
|
pMFP = (LPMETAFILEPICT)GlobalLock(hData);
|
|
if (pMFP == NULL)
|
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goto exitpt;
|
|
|
|
hMFDC = CreateMetaFile(NULL);
|
|
if (hMFDC == NULL)
|
|
goto exitpt;
|
|
|
|
/************************************************************************/
|
|
/* Copy the MFP by playing it into the DC and closing it. */
|
|
/************************************************************************/
|
|
if (!PlayMetaFile(hMFDC, pMFP->hMF))
|
|
{
|
|
CloseMetaFile(hMFDC);
|
|
goto exitpt;
|
|
}
|
|
hMF = CloseMetaFile(hMFDC);
|
|
if (hMF == NULL)
|
|
goto exitpt;
|
|
|
|
/************************************************************************/
|
|
/* Get the MF bits and determine how long they are. */
|
|
/************************************************************************/
|
|
#ifdef OS_WIN16
|
|
hMFBits = GetMetaFileBits(hMF);
|
|
lenMFBits = GlobalSize(hMFBits);
|
|
#else
|
|
lenMFBits = GetMetaFileBitsEx(hMF, 0, NULL);
|
|
#endif
|
|
if (lenMFBits == 0)
|
|
goto exitpt;
|
|
|
|
/************************************************************************/
|
|
/* Work out how much memory we need and get a buffer */
|
|
/************************************************************************/
|
|
*pDataLen = sizeof(CLIPBOARD_MFPICT) + lenMFBits;
|
|
hNewData = GlobalAlloc(GHND, *pDataLen);
|
|
if (hNewData == NULL)
|
|
goto exitpt;
|
|
|
|
pNewData = GlobalLock(hNewData);
|
|
|
|
/************************************************************************/
|
|
/* Copy the MF header and bits into the buffer. */
|
|
/************************************************************************/
|
|
((PCLIPBOARD_MFPICT)pNewData)->mm = pMFP->mm;
|
|
((PCLIPBOARD_MFPICT)pNewData)->xExt = pMFP->xExt;
|
|
((PCLIPBOARD_MFPICT)pNewData)->yExt = pMFP->yExt;
|
|
|
|
#ifdef OS_WIN16
|
|
pBits = GlobalLock(hMFBits);
|
|
memcpy((pNewData + sizeof(CLIPBOARD_MFPICT)),
|
|
pBits,
|
|
lenMFBits);
|
|
GlobalUnlock(hMFBits);
|
|
#else
|
|
lenMFBits = GetMetaFileBitsEx(hMF, lenMFBits,
|
|
(pNewData + sizeof(CLIPBOARD_MFPICT)));
|
|
if (lenMFBits == 0)
|
|
goto exitpt;
|
|
#endif
|
|
|
|
/************************************************************************/
|
|
/* all OK */
|
|
/************************************************************************/
|
|
rc = TRUE;
|
|
|
|
exitpt:
|
|
/************************************************************************/
|
|
/* Unlock any global mem. */
|
|
/************************************************************************/
|
|
if (pMFP)
|
|
{
|
|
GlobalUnlock(hData);
|
|
}
|
|
if (pNewData)
|
|
{
|
|
GlobalUnlock(hNewData);
|
|
}
|
|
|
|
/************************************************************************/
|
|
/* if things went wrong, then free the new data */
|
|
/************************************************************************/
|
|
if ((rc == FALSE) && (hNewData != NULL))
|
|
{
|
|
GlobalFree(hNewData);
|
|
hNewData = NULL;
|
|
}
|
|
|
|
return(hNewData);
|
|
|
|
}
|
|
|
|
|
|
HGLOBAL Clp_SetMFData(UINT dataLen,
|
|
PVOID pData)
|
|
{
|
|
BOOL rc = FALSE;
|
|
HGLOBAL hMFBits = NULL;
|
|
PVOID pMFMem = NULL;
|
|
HMETAFILE hMF = NULL;
|
|
HGLOBAL hMFPict = NULL;
|
|
LPMETAFILEPICT pMFPict = NULL;
|
|
|
|
/************************************************************************/
|
|
/* Allocate memory to hold the MF bits (we need the handle to pass to */
|
|
/* SetMetaFileBits). */
|
|
/************************************************************************/
|
|
hMFBits = GlobalAlloc(GHND, dataLen - sizeof(CLIPBOARD_MFPICT));
|
|
if (hMFBits == NULL)
|
|
goto exitpt;
|
|
|
|
/************************************************************************/
|
|
/* Lock the handle and copy in the MF header. */
|
|
/************************************************************************/
|
|
pMFMem = GlobalLock(hMFBits);
|
|
if (pMFMem == NULL)
|
|
goto exitpt;
|
|
|
|
memcpy(pMFMem,
|
|
(PVOID)((CHAR *)pData + sizeof(CLIPBOARD_MFPICT)),
|
|
dataLen - sizeof(CLIPBOARD_MFPICT) );
|
|
|
|
GlobalUnlock(hMFBits);
|
|
|
|
/************************************************************************/
|
|
/* Now use the copied MF bits to create the actual MF bits and get a */
|
|
/* handle to the MF. */
|
|
/************************************************************************/
|
|
#ifdef OS_WIN16
|
|
hMF = SetMetaFileBits(hMFBits);
|
|
#else
|
|
hMF = SetMetaFileBitsEx(dataLen - sizeof(CLIPBOARD_MFPICT), pMFMem);
|
|
#endif
|
|
if (hMF == NULL)
|
|
goto exitpt;
|
|
|
|
/************************************************************************/
|
|
/* Allocate a new METAFILEPICT structure, and use the data from the */
|
|
/* header. */
|
|
/************************************************************************/
|
|
hMFPict = GlobalAlloc(GHND, sizeof(METAFILEPICT));
|
|
pMFPict = (LPMETAFILEPICT)GlobalLock(hMFPict);
|
|
if (!pMFPict)
|
|
goto exitpt;
|
|
|
|
pMFPict->mm = (long)((PCLIPBOARD_MFPICT)pData)->mm;
|
|
pMFPict->xExt = (long)((PCLIPBOARD_MFPICT)pData)->xExt;
|
|
pMFPict->yExt = (long)((PCLIPBOARD_MFPICT)pData)->yExt;
|
|
pMFPict->hMF = hMF;
|
|
|
|
GlobalUnlock(hMFPict);
|
|
|
|
rc = TRUE;
|
|
|
|
exitpt:
|
|
/************************************************************************/
|
|
/* tidy up */
|
|
/************************************************************************/
|
|
if (!rc)
|
|
{
|
|
if (hMFPict)
|
|
{
|
|
GlobalFree(hMFPict);
|
|
}
|
|
if (hMFBits)
|
|
{
|
|
GlobalFree(hMFBits);
|
|
}
|
|
}
|
|
|
|
return(hMFPict);
|
|
|
|
}
|
|
|
|
BOOL
|
|
Clp_EmptyClipboard(VOID)
|
|
{
|
|
BOOL rv = FALSE;
|
|
|
|
if (OpenClipboard(NULL))
|
|
{
|
|
EmptyClipboard();
|
|
rv = TRUE;
|
|
CloseClipboard();
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
BOOL
|
|
Clp_CheckEmptyClipboard(VOID)
|
|
{
|
|
BOOL rv = TRUE;
|
|
|
|
if (OpenClipboard(NULL))
|
|
{
|
|
if (EnumClipboardFormats(0))
|
|
// format is available, not empty
|
|
rv = FALSE;
|
|
CloseClipboard();
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
// Checks for known format names and returns it's ID
|
|
UINT
|
|
_GetKnownClipboardFormatIDByName(LPCSTR szFormatName)
|
|
{
|
|
INT fmti, fmtnum;
|
|
UINT rv = 0;
|
|
|
|
fmtnum = sizeof(KnownFormats)/sizeof(KnownFormats[0]);
|
|
for (fmti = 0;
|
|
fmti < fmtnum
|
|
&&
|
|
_stricmp(szFormatName, KnownFormats[fmti].szFormat);
|
|
fmti ++)
|
|
;
|
|
|
|
if (fmti < fmtnum)
|
|
rv = KnownFormats[fmti].uiFormat;
|
|
|
|
return rv;
|
|
}
|
|
|
|
VOID
|
|
_cdecl LocalPrintMessage(INT errlevel, CHAR *format, ...)
|
|
{
|
|
CHAR szBuffer[256];
|
|
CHAR *type;
|
|
va_list arglist;
|
|
INT nchr;
|
|
|
|
va_start (arglist, format);
|
|
nchr = _vsnprintf (szBuffer, sizeof(szBuffer), format, arglist);
|
|
va_end (arglist);
|
|
|
|
switch(errlevel)
|
|
{
|
|
case INFO_MESSAGE: type = "INF"; break;
|
|
case ALIVE_MESSAGE: type = "ALV"; break;
|
|
case WARNING_MESSAGE: type = "WRN"; break;
|
|
case ERROR_MESSAGE: type = "ERR"; break;
|
|
default: type = "UNKNOWN";
|
|
}
|
|
|
|
printf("%s:%s", type, szBuffer);
|
|
}
|
|
|