71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
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/*
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* TWAIN Plug-in
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* Copyright (C) 1999 Craig Setera
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* Craig Setera <setera@home.com>
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* 03/31/1999
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*
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* Based on (at least) the following plug-ins:
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* Screenshot
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* GIF
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* Randomize
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*
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* Any suggestions, bug-reports or patches are welcome.
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*
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* This plug-in interfaces to the TWAIN support library in order
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* to capture images from TWAIN devices directly into PIKA images.
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* The plug-in is capable of acquiring the following type of
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* images:
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* - B/W (1 bit images translated to grayscale B/W)
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* - Grayscale up to 16 bits per pixel
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* - RGB up to 16 bits per sample (24, 30, 36, etc.)
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* - Paletted images (both Gray and RGB)
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*
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* Prerequisites:
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* This plug-in will not compile on anything other than a Win32
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* platform. Although the TWAIN documentation implies that there
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* is TWAIN support available on Macintosh, I neither have a
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* Macintosh nor the interest in porting this. If anyone else
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* has an interest, consult www.twain.org for more information on
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* interfacing to TWAIN.
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*
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* Known problems:
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* - Multiple image transfers will hang the plug-in. The current
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* configuration compiles with a maximum of single image transfers.
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*/
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/*
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* Revision history
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* (02/07/99) v0.1 First working version (internal)
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* (02/09/99) v0.2 First release to anyone other than myself
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* (02/15/99) v0.3 Added image dump and read support for debugging
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* (03/31/99) v0.5 Added support for multi-byte samples and paletted
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* images.
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*/
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#include "tw_platform.h"
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#include "tw_func.h"
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void dumpPreTransferCallback(void *clientData);
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int dumpBeginTransferCallback(pTW_IMAGEINFO imageInfo, void *clientData);
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int dumpDataTransferCallback(pTW_IMAGEINFO imageInfo,
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pTW_IMAGEMEMXFER imageMemXfer,
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void *clientData);
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int dumpEndTransferCallback(int completionState, int pendingCount, void *clientData);
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void dumpPostTransferCallback(int pendingCount, void *clientData);
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void readDumpedImage(pTW_SESSION twSession);
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