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80 lines
1.7 KiB
80 lines
1.7 KiB
/***************************************************************************
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PROP.C
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Purpose: Attach scanner data to window using property list
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$Log: S:\oiwh\scanlib\prop.c_v $
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*
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* Rev 1.0 20 Jul 1995 14:37:54 KFS
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* Initial entry
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*
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* Rev 1.1 22 Aug 1994 15:51:48 KFS
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* No code change, added vlog comments to file
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*
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****************************************************************************/
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/*
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CAUTION! Only data which can be shared among appliations,
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or data that is only used without giving up the CPU should declared staticly.
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*/
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#include "pvundef.h"
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/* imports */
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extern char PropName[];
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/* exports */
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/* locals */
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/********************/
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/* ScanProp */
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/********************/
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/* internal routine to get scanner data associated with window */
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/* all returned values must be set correctly, even if error */
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int PASCAL IMGScanProp(hWnd, lpSdh, lpSdp, lpCpf)
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HWND hWnd;
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HANDLE far *lpSdh;
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LPSCANDATA far *lpSdp;
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BOOL far *lpCpf;
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{
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register WORD ret_val;
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*lpSdh = NULL;
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*lpSdp = NULL;
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*lpCpf = FALSE;
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if (!IsWindow(hWnd))
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return IMGSE_BAD_WND;
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// LockData(0);
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*lpSdh = IMGGetProp(hWnd, PropName);
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if (*lpCpf = (*lpSdh == NULL))
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{
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*lpSdp = NULL;
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*lpSdh = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT,
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(DWORD)sizeof(SCANDATA));
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ret_val = IMGSE_MEMORY;
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if (*lpSdh == NULL)
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goto exit;
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ret_val = IMGSE_PROPERTY;
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if (IMGSetProp(hWnd, PropName, *lpSdh) == 0)
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goto exit;
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}
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*lpSdp = (LPSCANDATA)GlobalLock(*lpSdh);
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if (*lpSdp == NULL)
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ret_val = IMGSE_MEMORY;
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else
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ret_val = IMGSE_SUCCESS;
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exit:
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// UnlockData(0);
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return (int)ret_val;
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}
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