+++ /dev/null
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS Clipboard Viewer
- * FILE: base/applications/clipbrd/fileutils.c
- * PURPOSE: Clipboard file format helper functions.
- * PROGRAMMERS: Ricardo Hanke
- * Hermes Belusca-Maito
- */
-
-#include "precomp.h"
-
-static HGLOBAL ClipboardReadMemoryBlock(HANDLE hFile, DWORD dwOffset, DWORD dwLength)
-{
- HGLOBAL hData;
- LPVOID lpData;
- DWORD dwBytesRead;
-
- hData = GlobalAlloc(GHND, dwLength);
- if (!hData)
- return NULL;
-
- lpData = GlobalLock(hData);
- if (!lpData)
- {
- GlobalFree(hData);
- return NULL;
- }
-
- if (SetFilePointer(hFile, dwOffset, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER)
- {
- GlobalUnlock(hData);
- GlobalFree(hData);
- return NULL;
- }
-
- if (!ReadFile(hFile, lpData, dwLength, &dwBytesRead, NULL))
- {
- GlobalUnlock(hData);
- GlobalFree(hData);
- return NULL;
- }
-
- GlobalUnlock(hData);
-
- return hData;
-}
-
-static BOOL ClipboardReadMemory(HANDLE hFile, DWORD dwFormat, DWORD dwOffset, DWORD dwLength, WORD FileIdentifier, PVOID lpFormatName)
-{
- HGLOBAL hData;
- DWORD dwTemp = 0;
-
- hData = ClipboardReadMemoryBlock(hFile, dwOffset, dwLength);
- if (!hData)
- return FALSE;
-
- if ((dwFormat >= 0xC000) && (dwFormat <= 0xFFFF))
- {
- if (FileIdentifier == CLIP_FMT_31)
- dwTemp = RegisterClipboardFormatA((LPCSTR)lpFormatName);
- else if ((FileIdentifier == CLIP_FMT_NT) || (FileIdentifier == CLIP_FMT_BK))
- dwTemp = RegisterClipboardFormatW((LPCWSTR)lpFormatName);
-
- if (!dwTemp)
- {
- GlobalFree(hData);
- return FALSE;
- }
- }
- else
- {
- dwTemp = dwFormat;
- }
-
- if (!SetClipboardData(dwTemp, hData))
- {
- GlobalFree(hData);
- return FALSE;
- }
-
- return TRUE;
-}
-
-static BOOL ClipboardWriteMemory(HANDLE hFile, DWORD dwFormat, DWORD dwOffset, PDWORD pdwLength)
-{
- HGLOBAL hData;
- LPVOID lpData;
- DWORD dwBytesWritten;
-
- hData = GetClipboardData(dwFormat);
- if (!hData)
- return FALSE;
-
- lpData = GlobalLock(hData);
- if (!lpData)
- return FALSE;
-
- *pdwLength = GlobalSize(hData);
-
- if (SetFilePointer(hFile, dwOffset, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER)
- {
- GlobalUnlock(hData);
- return FALSE;
- }
-
- if (!WriteFile(hFile, lpData, *pdwLength, &dwBytesWritten, NULL))
- {
- GlobalUnlock(hData);
- return FALSE;
- }
-
- GlobalUnlock(hData);
-
- return TRUE;
-}
-
-static BOOL ClipboardReadPalette(HANDLE hFile, DWORD dwOffset, DWORD dwLength)
-{
- LPLOGPALETTE lpPalette;
- HPALETTE hPalette;
- HGLOBAL hData;
-
- hData = ClipboardReadMemoryBlock(hFile, dwOffset, dwLength);
- if (!hData)
- {
- return FALSE;
- }
-
- lpPalette = GlobalLock(hData);
- if (!lpPalette)
- {
- GlobalFree(hData);
- return FALSE;
- }
-
- hPalette = CreatePalette(lpPalette);
- if (!hPalette)
- {
- GlobalUnlock(hData);
- GlobalFree(hData);
- SetLastError(ERROR_OUTOFMEMORY);
- return FALSE;
- }
-
- GlobalUnlock(hData);
- GlobalFree(hData);
-
- if (!SetClipboardData(CF_PALETTE, hPalette))
- {
- DeleteObject(hPalette);
- return FALSE;
- }
-
- return TRUE;
-}
-
-static BOOL ClipboardReadMetafile(HANDLE hFile, DWORD dwOffset, DWORD dwLength)
-{
- HMETAFILE hMf;
- HGLOBAL hData;
- LPVOID lpData;
-
- hData = ClipboardReadMemoryBlock(hFile, dwOffset, dwLength);
- if (!hData)
- {
- return FALSE;
- }
-
- lpData = GlobalLock(hData);
- if (!lpData)
- {
- GlobalFree(hData);
- return FALSE;
- }
-
- hMf = SetMetaFileBitsEx(dwLength, lpData);
-
- GlobalUnlock(hData);
- GlobalFree(hData);
-
- if (!hMf)
- {
- SetLastError(ERROR_OUTOFMEMORY);
- return FALSE;
- }
-
- if (!SetClipboardData(CF_METAFILEPICT, hMf))
- {
- DeleteMetaFile(hMf);
- return FALSE;
- }
-
- return TRUE;
-}
-
-static BOOL ClipboardReadEnhMetafile(HANDLE hFile, DWORD dwOffset, DWORD dwLength)
-{
- HENHMETAFILE hEmf;
- HGLOBAL hData;
- LPVOID lpData;
-
- hData = ClipboardReadMemoryBlock(hFile, dwOffset, dwLength);
- if (!hData)
- {
- return FALSE;
- }
-
- lpData = GlobalLock(hData);
- if (!lpData)
- {
- GlobalFree(hData);
- return FALSE;
- }
-
- hEmf = SetEnhMetaFileBits(dwLength, lpData);
-
- GlobalUnlock(hData);
- GlobalFree(hData);
-
- if (!hEmf)
- {
- SetLastError(ERROR_OUTOFMEMORY);
- return FALSE;
- }
-
- if (!SetClipboardData(CF_ENHMETAFILE, hEmf))
- {
- DeleteEnhMetaFile(hEmf);
- return FALSE;
- }
-
- return TRUE;
-}
-
-static BOOL ClipboardReadBitmap(HANDLE hFile, DWORD dwOffset, DWORD dwLength)
-{
- HGLOBAL hData;
- HBITMAP hBitmap;
- LPBITMAP lpBitmap;
-
- hData = ClipboardReadMemoryBlock(hFile, dwOffset, dwLength);
- if (!hData)
- {
- return FALSE;
- }
-
- lpBitmap = GlobalLock(hData);
- if (!lpBitmap)
- {
- GlobalFree(hData);
- return FALSE;
- }
-
- lpBitmap->bmBits = lpBitmap + sizeof(BITMAP) + 1;
-
- hBitmap = CreateBitmapIndirect(lpBitmap);
-
- GlobalUnlock(hData);
- GlobalFree(hData);
-
- if (!hBitmap)
- {
- SetLastError(ERROR_OUTOFMEMORY);
- return FALSE;
- }
-
- if (!SetClipboardData(CF_BITMAP, hBitmap))
- {
- DeleteObject(hBitmap);
- return FALSE;
- }
-
- return TRUE;
-}
-
-void ReadClipboardFile(LPCWSTR lpFileName)
-{
- CLIPFILEHEADER ClipFileHeader;
- CLIPFORMATHEADER ClipFormatArray;
- NTCLIPFILEHEADER NtClipFileHeader;
- NTCLIPFORMATHEADER NtClipFormatArray;
- PVOID pClipFileHeader;
- PVOID pClipFormatArray;
- DWORD SizeOfFileHeader, SizeOfFormatHeader;
-
- WORD wFileIdentifier;
- WORD wFormatCount;
- DWORD dwFormatID;
- DWORD dwLenData;
- DWORD dwOffData;
- PVOID szName;
-
- HANDLE hFile;
- DWORD dwBytesRead;
- BOOL bResult;
- int i;
-
- /* Open the file for read access */
- hFile = CreateFileW(lpFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
- OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
- if (hFile == INVALID_HANDLE_VALUE)
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- /* Just read enough bytes to get the clipboard file format ID */
- if (!ReadFile(hFile, &wFileIdentifier, sizeof(wFileIdentifier), &dwBytesRead, NULL))
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- /* Set data according to the clipboard file format ID */
- switch (wFileIdentifier)
- {
- case CLIP_FMT_31:
- SizeOfFileHeader = sizeof(CLIPFILEHEADER);
- SizeOfFormatHeader = sizeof(CLIPFORMATHEADER);
- pClipFileHeader = &ClipFileHeader;
- pClipFormatArray = &ClipFormatArray;
- break;
-
- case CLIP_FMT_NT:
- case CLIP_FMT_BK:
- SizeOfFileHeader = sizeof(NTCLIPFILEHEADER);
- SizeOfFormatHeader = sizeof(NTCLIPFORMATHEADER);
- pClipFileHeader = &NtClipFileHeader;
- pClipFormatArray = &NtClipFormatArray;
- break;
-
- default:
- MessageBoxRes(Globals.hMainWnd, Globals.hInstance, ERROR_INVALID_FILE_FORMAT, 0, MB_ICONSTOP | MB_OK);
- goto done;
- }
-
- /* Completely read the header */
- SetFilePointer(hFile, 0, NULL, FILE_BEGIN);
- if (!ReadFile(hFile, pClipFileHeader, SizeOfFileHeader, &dwBytesRead, NULL) ||
- dwBytesRead != SizeOfFileHeader)
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- /* Get header data */
- switch (wFileIdentifier)
- {
- case CLIP_FMT_31:
- assert(wFileIdentifier == ((CLIPFILEHEADER*)pClipFileHeader)->wFileIdentifier);
- wFormatCount = ((CLIPFILEHEADER*)pClipFileHeader)->wFormatCount;
- break;
-
- case CLIP_FMT_NT:
- case CLIP_FMT_BK:
- assert(wFileIdentifier == ((NTCLIPFILEHEADER*)pClipFileHeader)->wFileIdentifier);
- wFormatCount = ((NTCLIPFILEHEADER*)pClipFileHeader)->wFormatCount;
- break;
- }
-
- /* Loop through the format data array */
- for (i = 0; i < wFormatCount; i++)
- {
- if (SetFilePointer(hFile, SizeOfFileHeader + i * SizeOfFormatHeader, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER)
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- if (!ReadFile(hFile, pClipFormatArray, SizeOfFormatHeader, &dwBytesRead, NULL))
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- /* Get format data */
- switch (wFileIdentifier)
- {
- case CLIP_FMT_31:
- dwFormatID = ((CLIPFORMATHEADER*)pClipFormatArray)->dwFormatID;
- dwLenData = ((CLIPFORMATHEADER*)pClipFormatArray)->dwLenData;
- dwOffData = ((CLIPFORMATHEADER*)pClipFormatArray)->dwOffData;
- szName = ((CLIPFORMATHEADER*)pClipFormatArray)->szName;
- break;
-
- case CLIP_FMT_NT:
- case CLIP_FMT_BK:
- dwFormatID = ((NTCLIPFORMATHEADER*)pClipFormatArray)->dwFormatID;
- dwLenData = ((NTCLIPFORMATHEADER*)pClipFormatArray)->dwLenData;
- dwOffData = ((NTCLIPFORMATHEADER*)pClipFormatArray)->dwOffData;
- szName = ((NTCLIPFORMATHEADER*)pClipFormatArray)->szName;
- break;
- }
-
- switch (dwFormatID)
- {
- case CF_OWNERDISPLAY:
- {
- break;
- }
-
- case CF_BITMAP:
- case CF_DSPBITMAP:
- {
- bResult = ClipboardReadBitmap(hFile, dwOffData, dwLenData);
- break;
- }
-
- case CF_METAFILEPICT:
- case CF_DSPMETAFILEPICT:
- {
- bResult = ClipboardReadMetafile(hFile, dwOffData, dwLenData);
- break;
- }
-
- case CF_ENHMETAFILE:
- case CF_DSPENHMETAFILE:
- {
- bResult = ClipboardReadEnhMetafile(hFile, dwOffData, dwLenData);
- break;
- }
-
- case CF_PALETTE:
- {
- bResult = ClipboardReadPalette(hFile, dwOffData, dwLenData);
- break;
- }
-
- default:
- {
- if ((dwFormatID < CF_PRIVATEFIRST) || (dwFormatID > CF_PRIVATELAST))
- {
- bResult = ClipboardReadMemory(hFile, dwFormatID, dwOffData, dwLenData, wFileIdentifier, szName);
- }
- break;
- }
- }
-
- if (!bResult)
- ShowLastWin32Error(Globals.hMainWnd);
- }
-
-done:
- if (hFile != INVALID_HANDLE_VALUE)
- CloseHandle(hFile);
-
- return;
-}
-
-void WriteClipboardFile(LPCWSTR lpFileName, WORD wFileIdentifier)
-{
- CLIPFILEHEADER ClipFileHeader;
- CLIPFORMATHEADER ClipFormatArray;
- NTCLIPFILEHEADER NtClipFileHeader;
- NTCLIPFORMATHEADER NtClipFormatArray;
- PVOID pClipFileHeader;
- PVOID pClipFormatArray;
- DWORD SizeOfFileHeader, SizeOfFormatHeader;
-
- WORD wFormatCount;
- DWORD dwFormatID;
- DWORD dwLenData;
- DWORD dwOffData;
- // PVOID szName;
-
- HANDLE hFile;
- DWORD dwBytesWritten;
- int i;
-
- /* Create the file for write access */
- hFile = CreateFileW(lpFileName, GENERIC_WRITE, 0, NULL,
- CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
- if (hFile == INVALID_HANDLE_VALUE)
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- wFormatCount = CountClipboardFormats();
-
- /* Select the file format and setup the header according to the clipboard file format ID */
- switch (wFileIdentifier)
- {
- case CLIP_FMT_31:
- SizeOfFileHeader = sizeof(CLIPFILEHEADER);
- SizeOfFormatHeader = sizeof(CLIPFORMATHEADER);
- pClipFileHeader = &ClipFileHeader;
- pClipFormatArray = &ClipFormatArray;
-
- ClipFileHeader.wFileIdentifier = CLIP_FMT_31; // wFileIdentifier
- ClipFileHeader.wFormatCount = wFormatCount;
- break;
-
- case CLIP_FMT_NT:
- case CLIP_FMT_BK:
- SizeOfFileHeader = sizeof(NTCLIPFILEHEADER);
- SizeOfFormatHeader = sizeof(NTCLIPFORMATHEADER);
- pClipFileHeader = &NtClipFileHeader;
- pClipFormatArray = &NtClipFormatArray;
-
- NtClipFileHeader.wFileIdentifier = CLIP_FMT_NT; // wFileIdentifier
- NtClipFileHeader.wFormatCount = wFormatCount;
- break;
-
- default:
- MessageBoxRes(Globals.hMainWnd, Globals.hInstance, ERROR_INVALID_FILE_FORMAT, 0, MB_ICONSTOP | MB_OK);
- goto done;
- }
-
- /* Write the header */
- SetFilePointer(hFile, 0, NULL, FILE_BEGIN);
- if (!WriteFile(hFile, pClipFileHeader, SizeOfFileHeader, &dwBytesWritten, NULL) ||
- dwBytesWritten != SizeOfFileHeader)
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- /* Compute where the data should start (after the file header and the format array) */
- dwOffData = SizeOfFileHeader + wFormatCount * SizeOfFormatHeader;
-
- /* Loop through each format and save the data */
- i = 0;
- dwFormatID = EnumClipboardFormats(0);
- while (dwFormatID)
- {
- if (i >= wFormatCount)
- {
- /* Must never happen! */
- assert(FALSE);
- break;
- }
-
- /* Write the clipboard data at the specified offset, and retrieve its length */
- if (!ClipboardWriteMemory(hFile, dwFormatID, dwOffData, &dwLenData))
- goto Cont;
-
- /* Write the format data header */
- switch (wFileIdentifier)
- {
- case CLIP_FMT_31:
- ZeroMemory(pClipFormatArray, sizeof(CLIPFORMATHEADER));
- ((CLIPFORMATHEADER*)pClipFormatArray)->dwFormatID = dwFormatID;
- ((CLIPFORMATHEADER*)pClipFormatArray)->dwLenData = dwLenData;
- ((CLIPFORMATHEADER*)pClipFormatArray)->dwOffData = dwOffData;
- RetrieveClipboardFormatName(Globals.hInstance,
- dwFormatID,
- FALSE,
- ((CLIPFORMATHEADER*)pClipFormatArray)->szName,
- ARRAYSIZE(((CLIPFORMATHEADER*)pClipFormatArray)->szName));
- break;
-
- case CLIP_FMT_NT:
- case CLIP_FMT_BK:
- ZeroMemory(pClipFormatArray, sizeof(NTCLIPFORMATHEADER));
- ((NTCLIPFORMATHEADER*)pClipFormatArray)->dwFormatID = dwFormatID;
- ((NTCLIPFORMATHEADER*)pClipFormatArray)->dwLenData = dwLenData;
- ((NTCLIPFORMATHEADER*)pClipFormatArray)->dwOffData = dwOffData;
- RetrieveClipboardFormatName(Globals.hInstance,
- dwFormatID,
- TRUE,
- ((NTCLIPFORMATHEADER*)pClipFormatArray)->szName,
- ARRAYSIZE(((NTCLIPFORMATHEADER*)pClipFormatArray)->szName));
- break;
- }
-
- if (SetFilePointer(hFile, SizeOfFileHeader + i * SizeOfFormatHeader, NULL, FILE_BEGIN) == INVALID_SET_FILE_POINTER)
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- if (!WriteFile(hFile, pClipFormatArray, SizeOfFormatHeader, &dwBytesWritten, NULL))
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- /* Adjust the offset for the next data stream */
- dwOffData += dwLenData;
-
-Cont:
- i++;
- dwFormatID = EnumClipboardFormats(dwFormatID);
- }
-
-done:
- if (hFile != INVALID_HANDLE_VALUE)
- CloseHandle(hFile);
-
- return;
-}
projects / reactos.git / blobdiff