mirror of
https://github.com/reactos/reactos.git
synced 2024-08-26 13:18:51 +00:00
131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Clip Command
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* FILE: base/applications/cmdutils/clip/clip.c
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* PURPOSE: Provides clipboard management for command-line programs.
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* PROGRAMMERS: Ricardo Hanke
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*/
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#include <stdio.h>
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#include <windef.h>
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#include <winbase.h>
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#include <winuser.h>
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#include <conutils.h>
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#include "resource.h"
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VOID PrintError(DWORD dwError)
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{
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if (dwError == ERROR_SUCCESS)
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return;
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ConMsgPuts(StdErr, FORMAT_MESSAGE_FROM_SYSTEM,
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NULL, dwError, LANG_USER_DEFAULT);
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}
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static BOOL IsDataUnicode(HGLOBAL hGlobal)
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{
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BOOL bReturn;
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LPVOID lpBuffer;
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lpBuffer = GlobalLock(hGlobal);
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bReturn = IsTextUnicode(lpBuffer, GlobalSize(hGlobal), NULL);
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GlobalUnlock(hGlobal);
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return bReturn;
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}
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int wmain(int argc, wchar_t** argv)
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{
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HANDLE hInput;
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DWORD dwBytesRead;
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BOOL bStatus;
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HGLOBAL hBuffer;
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HGLOBAL hTemp;
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LPBYTE lpBuffer;
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SIZE_T dwSize = 0;
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/* Initialize the Console Standard Streams */
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hInput = GetStdHandle(STD_INPUT_HANDLE);
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ConInitStdStreams();
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/* Check for usage */
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if (argc > 1 && wcsncmp(argv[1], L"/?", 2) == 0)
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{
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ConResPuts(StdOut, IDS_HELP);
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return 0;
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}
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if (GetFileType(hInput) == FILE_TYPE_CHAR)
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{
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ConResPuts(StdOut, IDS_USAGE);
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return 0;
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}
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/* Initialize a growable buffer for holding clipboard data */
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hBuffer = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, 4096);
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if (!hBuffer)
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goto Failure;
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/*
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* Read data from the input stream by chunks of 4096 bytes
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* and resize the buffer each time when needed.
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*/
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do
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{
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lpBuffer = GlobalLock(hBuffer);
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if (!lpBuffer)
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goto Failure;
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bStatus = ReadFile(hInput, lpBuffer + dwSize, 4096, &dwBytesRead, NULL);
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dwSize += dwBytesRead;
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GlobalUnlock(hBuffer);
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hTemp = GlobalReAlloc(hBuffer, GlobalSize(hBuffer) + 4096, GMEM_ZEROINIT);
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if (!hTemp)
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goto Failure;
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hBuffer = hTemp;
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}
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while (bStatus && dwBytesRead > 0);
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/*
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* Resize the buffer to the total size of data read.
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* Note that, if the call fails, we still have the old buffer valid.
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* The old buffer would be larger than the actual size of data it contains,
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* but this is not a problem for us.
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*/
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hTemp = GlobalReAlloc(hBuffer, dwSize + sizeof(WCHAR), GMEM_ZEROINIT);
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if (hTemp)
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hBuffer = hTemp;
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/* Attempt to open the clipboard */
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if (!OpenClipboard(NULL))
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goto Failure;
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/* Empty it, copy our data, then close it */
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EmptyClipboard();
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if (IsDataUnicode(hBuffer))
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{
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SetClipboardData(CF_UNICODETEXT, hBuffer);
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}
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else
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{
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// TODO: Convert text from current console page to standard ANSI.
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// Alternatively one can use CF_OEMTEXT as done here.
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SetClipboardData(CF_OEMTEXT, hBuffer);
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}
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CloseClipboard();
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return 0;
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Failure:
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if (hBuffer) GlobalFree(hBuffer);
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PrintError(GetLastError());
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return -1;
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}
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