[hbelusca] 70730: [CLIPBRD]: Complete the read support from .clp clipboard files to be actually able to read files saved with the Windows 2k3 clipboard. There actually exist two clipboard file form...
13 Feb
2016
13 Feb
'16
4:08 p.m.
Author: hbelusca
Date: Sat Feb 13 16:08:09 2016
New Revision: 70730
URL: http://svn.reactos.org/svn/reactos?rev=70730&view=rev
Log:
[CLIPBRD]: Complete the read support from .clp clipboard files to be actually able to read
files saved with the Windows 2k3 clipboard.
There actually exist two clipboard file formats, so-called "Win3.1" and a
"WinNT" formats. Strangely enough Win2k (and Win2k3) clipboard viewer always
save the files under the "Win3.1" format, whichever one you select.
I discovered the subtle difference between those two formats by looking at a very old MSDN
sample program "EMFDCODE (Enhanced Metafile Decoder)" by Dennis Crain (see
https://web.archive.org/web/20080406095812/http://msdn.microsoft.com/archiv…
) that still can be found on the Internet...
CORE-10550 #comment Read support fixed in r70730.
Modified:
trunk/reactos/base/applications/clipbrd/clipbrd.c
trunk/reactos/base/applications/clipbrd/fileutils.c
trunk/reactos/base/applications/clipbrd/fileutils.h
trunk/reactos/base/applications/clipbrd/precomp.h
Modified: trunk/reactos/base/applications/clipbrd/clipbrd.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/clipbrd/…
==============================================================================
--- trunk/reactos/base/applications/clipbrd/clipbrd.c [iso-8859-1] (original)
+++ trunk/reactos/base/applications/clipbrd/clipbrd.c [iso-8859-1] Sat Feb 13 16:08:09
2016
@@ -318,15 +318,15 @@
break;
}
+ case CF_METAFILEPICT:
+ {
+ PlayMetaFileFromClipboard(hdc, &rc);
+ break;
+ }
+
case CF_ENHMETAFILE:
{
PlayEnhMetaFileFromClipboard(hdc, &rc);
- break;
- }
-
- case CF_METAFILEPICT:
- {
- PlayMetaFileFromClipboard(hdc, &rc);
break;
}
Modified: trunk/reactos/base/applications/clipbrd/fileutils.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/clipbrd/…
==============================================================================
--- trunk/reactos/base/applications/clipbrd/fileutils.c [iso-8859-1] (original)
+++ trunk/reactos/base/applications/clipbrd/fileutils.c [iso-8859-1] Sat Feb 13 16:08:09
2016
@@ -4,6 +4,7 @@
* FILE: base/applications/clipbrd/fileutils.c
* PURPOSE: Clipboard file format helper functions.
* PROGRAMMERS: Ricardo Hanke
+ * Hermes Belusca-Maito
*/
#include "precomp.h"
@@ -16,9 +17,7 @@
hData = GlobalAlloc(GHND, dwLength);
if (!hData)
- {
return NULL;
- }
lpData = GlobalLock(hData);
if (!lpData)
@@ -46,20 +45,22 @@
return hData;
}
-static BOOL ClipboardReadMemory(HANDLE hFile, DWORD dwFormat, DWORD dwOffset, DWORD
dwLength, LPCWSTR lpFormatName)
+static BOOL ClipboardReadMemory(HANDLE hFile, DWORD dwFormat, DWORD dwOffset, DWORD
dwLength, WORD FileIdentifier, PVOID lpFormatName)
{
HGLOBAL hData;
DWORD dwTemp;
hData = ClipboardReadMemoryBlock(hFile, dwOffset, dwLength);
if (!hData)
- {
- return FALSE;
- }
+ return FALSE;
if ((dwFormat >= 0xC000) && (dwFormat <= 0xFFFF))
{
- dwTemp = RegisterClipboardFormatW(lpFormatName);
+ 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);
@@ -120,9 +121,9 @@
return TRUE;
}
-static BOOL ClipboardReadEnhMetafile(HANDLE hFile, DWORD dwOffset, DWORD dwLength)
-{
- HENHMETAFILE hEmf;
+static BOOL ClipboardReadMetafile(HANDLE hFile, DWORD dwOffset, DWORD dwLength)
+{
+ HMETAFILE hMf;
HGLOBAL hData;
LPVOID lpData;
@@ -139,11 +140,50 @@
return FALSE;
}
- hEmf = SetEnhMetaFileBits(dwLength, lpData);
+ 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);
@@ -202,13 +242,27 @@
void ReadClipboardFile(LPCWSTR lpFileName)
{
- CLIPBOARDFILEHEADER cfhFileHeader;
- CLIPBOARDFORMATHEADER *cfhFormatArray = NULL;
+ 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 */
hFile = CreateFileW(lpFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
@@ -216,39 +270,99 @@
goto done;
}
- if (!ReadFile(hFile, &cfhFileHeader, sizeof(cfhFileHeader), &dwBytesRead,
NULL))
+ /* Just read enough bytes to get the clipboard file format ID */
+ if (!ReadFile(hFile, &wFileIdentifier, sizeof(wFileIdentifier), &dwBytesRead,
NULL))
{
ShowLastWin32Error(Globals.hMainWnd);
goto done;
}
-
- if ((cfhFileHeader.wFileIdentifier != CLIPBOARD_FORMAT_NT) &&
(cfhFileHeader.wFileIdentifier != CLIPBOARD_FORMAT_BK))
- {
- MessageBoxRes(Globals.hMainWnd, Globals.hInstance, ERROR_INVALID_FILE_FORMAT, 0,
MB_ICONSTOP | MB_OK);
- goto done;
- }
-
- cfhFormatArray = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
cfhFileHeader.wFormatCount * sizeof(CLIPBOARDFORMATHEADER));
- if (!cfhFormatArray)
- {
- SetLastError(ERROR_OUTOFMEMORY);
+ SetFilePointer(hFile, 0, NULL, FILE_BEGIN);
+
+ /* 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;
+ MessageBox(Globals.hMainWnd, L"We have a Win3.11 clipboard file!",
L"File format", 0);
+ break;
+
+ case CLIP_FMT_NT:
+ case CLIP_FMT_BK:
+ SizeOfFileHeader = sizeof(NTCLIPFILEHEADER);
+ SizeOfFormatHeader = sizeof(NTCLIPFORMATHEADER);
+ pClipFileHeader = &NtClipFileHeader;
+ pClipFormatArray = &NtClipFormatArray;
+ MessageBox(Globals.hMainWnd, L"We have a WinNT clipboard file!",
L"File format", 0);
+ break;
+
+ default:
+ MessageBoxRes(Globals.hMainWnd, Globals.hInstance, ERROR_INVALID_FILE_FORMAT,
0, MB_ICONSTOP | MB_OK);
+ goto done;
+ }
+
+ /* Completely read the header */
+ if (!ReadFile(hFile, pClipFileHeader, SizeOfFileHeader, &dwBytesRead, NULL) ||
+ dwBytesRead != SizeOfFileHeader)
+ {
ShowLastWin32Error(Globals.hMainWnd);
goto done;
}
- if (!ReadFile(hFile, cfhFormatArray, cfhFileHeader.wFormatCount *
sizeof(CLIPBOARDFORMATHEADER), &dwBytesRead, NULL))
- {
- ShowLastWin32Error(Globals.hMainWnd);
- goto done;
- }
-
- for (i = 0; i < cfhFileHeader.wFormatCount; i++)
- {
- switch (cfhFormatArray[i].dwFormatID)
+ /* 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 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:
- case CF_DSPMETAFILEPICT:
- case CF_METAFILEPICT:
{
break;
}
@@ -256,49 +370,47 @@
case CF_BITMAP:
case CF_DSPBITMAP:
{
- bResult = ClipboardReadBitmap(hFile, cfhFormatArray[i].dwOffData,
cfhFormatArray[i].dwLenData);
- break;
- }
-
+ bResult = ClipboardReadBitmap(hFile, dwOffData, dwLenData);
+ break;
+ }
+
+ case CF_METAFILEPICT:
+ case CF_DSPMETAFILEPICT:
+ {
+ bResult = ClipboardReadMetafile(hFile, dwOffData, dwLenData);
+ break;
+ }
+
+ case CF_ENHMETAFILE:
case CF_DSPENHMETAFILE:
- case CF_ENHMETAFILE:
- {
- bResult = ClipboardReadEnhMetafile(hFile, cfhFormatArray[i].dwOffData,
cfhFormatArray[i].dwLenData);
+ {
+ bResult = ClipboardReadEnhMetafile(hFile, dwOffData, dwLenData);
break;
}
case CF_PALETTE:
{
- bResult = ClipboardReadPalette(hFile, cfhFormatArray[i].dwOffData,
cfhFormatArray[i].dwLenData);
+ bResult = ClipboardReadPalette(hFile, dwOffData, dwLenData);
break;
}
default:
{
- if ((cfhFormatArray[i].dwFormatID < CF_PRIVATEFIRST) ||
(cfhFormatArray[i].dwFormatID > CF_PRIVATELAST))
+ if ((dwFormatID < CF_PRIVATEFIRST) || (dwFormatID >
CF_PRIVATELAST))
{
- bResult = ClipboardReadMemory(hFile, cfhFormatArray[i].dwFormatID,
cfhFormatArray[i].dwOffData, cfhFormatArray[i].dwLenData, cfhFormatArray[i].szName);
+ bResult = ClipboardReadMemory(hFile, dwFormatID, dwOffData,
dwLenData, wFileIdentifier, szName);
}
break;
}
}
if (!bResult)
- {
ShowLastWin32Error(Globals.hMainWnd);
- }
}
done:
if (hFile != INVALID_HANDLE_VALUE)
- {
CloseHandle(hFile);
- }
-
- if (cfhFormatArray)
- {
- HeapFree(GetProcessHeap(), 0, cfhFormatArray);
- }
return;
}
Modified: trunk/reactos/base/applications/clipbrd/fileutils.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/clipbrd/…
==============================================================================
--- trunk/reactos/base/applications/clipbrd/fileutils.h [iso-8859-1] (original)
+++ trunk/reactos/base/applications/clipbrd/fileutils.h [iso-8859-1] Sat Feb 13 16:08:09
2016
@@ -4,26 +4,49 @@
* FILE: base/applications/clipbrd/fileutils.h
* PURPOSE: Clipboard file format helper functions.
* PROGRAMMERS: Ricardo Hanke
+ * Hermes Belusca-Maito
*/
-#define CLIPBOARD_FORMAT_31 0xC350
-#define CLIPBOARD_FORMAT_NT 0xC351
-#define CLIPBOARD_FORMAT_BK 0xC352
+#define CLIP_FMT_31 0xC350
+#define CLIP_FMT_NT 0xC351
+#define CLIP_FMT_BK 0xC352
#define MAX_FMT_NAME_LEN 79
-typedef struct _CLIPBOARDFILEHEADER
+/*
+ * Win3.1 Clipboard File Format (default)
+ */
+#pragma pack(push, 1)
+typedef struct _CLIPFILEHEADER
{
WORD wFileIdentifier;
WORD wFormatCount;
-} CLIPBOARDFILEHEADER;
+} CLIPFILEHEADER;
-typedef struct _CLIPBOARDFORMATHEADER
+typedef struct _CLIPFORMATHEADER
+{
+ WORD dwFormatID;
+ DWORD dwLenData;
+ DWORD dwOffData;
+ CHAR szName[MAX_FMT_NAME_LEN];
+} CLIPFORMATHEADER;
+#pragma pack(pop)
+
+/*
+ * NT Clipboard File Format
+ */
+typedef struct _NTCLIPFILEHEADER
+{
+ WORD wFileIdentifier;
+ WORD wFormatCount;
+} NTCLIPFILEHEADER;
+
+typedef struct _NTCLIPFORMATHEADER
{
DWORD dwFormatID;
DWORD dwLenData;
DWORD dwOffData;
WCHAR szName[MAX_FMT_NAME_LEN];
-} CLIPBOARDFORMATHEADER;
+} NTCLIPFORMATHEADER;
void ReadClipboardFile(LPCWSTR lpFileName);
void WriteClipboardFile(LPCWSTR lpFileName);
Modified: trunk/reactos/base/applications/clipbrd/precomp.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/clipbrd/…
==============================================================================
--- trunk/reactos/base/applications/clipbrd/precomp.h [iso-8859-1] (original)
+++ trunk/reactos/base/applications/clipbrd/precomp.h [iso-8859-1] Sat Feb 13 16:08:09
2016
@@ -4,6 +4,8 @@
// #pragma once
#include <limits.h>
+
+#include <assert.h>
#include <windef.h>
#include <winbase.h>
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