wndo3.c

nucleus 文件系统,内核和彩色图形系统,在小系统上非常好用

/*************************************************************************/
/*                                                                       */
/*         Copyright (c) 1997 - 1999 Accelerated Technology, Inc.        */
/*                                                                       */
/* PROPRIETARY RIGHTS of Accelerated Technology are involved in the      */
/* subject matter of this material.  All manufacturing, reproduction,    */
/* use, and sales rights pertaining to this subject matter are governed  */
/* by the license agreement.  The recipient of this software implicitly  */
/* accepts the terms of the license.                                     */
/*                                                                       */
/*************************************************************************/

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                            VERSION          */
/*                                                                       */
/*      WNDO3.c                                          1.9             */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      All                                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains the StopGraphics function.                    */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Robert G. Burrill, Accelerated Technology, Inc.                  */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         NAME            DATE                    REMARKS               */
/*                                                                       */
/*                                                                       */
/*************************************************************************/

#include "meta_wnd.h"
#include "metconst.h"    /* MetaWINDOW Constant & Stucture Definitions */
#include "metports.h"    /* MetaWINDOW Port & Bitmap Definitions */
#include "grafdata.h"

	
/* Function StopGraphics is the standard way to shut down. It depends on
CloseBitmap() to free the default bitmap (driver, rowtables) and frees
the pool and the font buffer directly. */
int StopGraphics(void)
{
	int CloseBitmap(grafMap *argCGMAP);
	void GrafFree(void *freePtr);
	int StopErr;	/* error code */

	#ifdef FIXUP386
	int i;
	#endif

	/* Free the pool buffer. If null, there ain't one. */
	if (mpWorkSpace != NULL) GrafFree(mpWorkSpace);

	/* Free the default bitmap. This function is expected to free the
	driver space and the rowtables. */
	StopErr = CloseBitmap(&defGrafMap);

	/* Free the font buffer, if it was allocated */
	if (defFont != imbFnt) GrafFree(defFont);

	/* see if event system still connected */
	if (gFlags & gfEvtInit) stpEventIDV();

	/* see if mouse system still connected */
	if (curInput->mrFlags & mrOpenedSig) stpMouseIDV();

	#ifdef FIXUP386
	/* un-fixup pattern list pointers */
	for (i = 0; i < 32; i++)
	{
		patTable[i] -= dllFixup;
	}
	#endif

	/* Last, but not least, clear system init'd flag */
	gFlags &= ~gfGrafInit;

	return(StopErr);
}