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Microsoft OS/2 SDK 2.0 05-30-1990

/*==============================================================*\
 *  img_xtrn.h - Image external declarations                    *
 *      Created 1989, 1990 IBM, Microsoft Corp.                 *
 *--------------------------------------------------------------*
 *                                                              *
 *  This header file contains the application wide function     *
 *  declarations and global external variables.                 *
 *                                                              *
\*==============================================================*/

/*--------------------------------------------------------------*\
 *  Global variables                                            *
\*--------------------------------------------------------------*/
extern HAB      vhab;                    /* anchor block handle */
extern HDC      vhdcMem;        /* memory device context handle */
extern HDC      vhdc;           /* window device context handle */
extern HPS      vhps;                        /* image PS handle */
extern HPS      vhpsMem;                    /* memory PS handle */
extern BOOL     vfImgLoaded;      /* initially image not loaded */
extern BOOL     vfDetail;        /* view non-detailed initially */
extern BOOL     vfMaximized;  /* initially window not maximized */
extern BOOL     vfHelpEnabled;    /* set when help installed ok */
extern HWND     vhwndFrame;        /* image window frame handle */
extern HWND     vhwndClient;       /* main window client handle */
extern HWND     vhwndVScroll;      /* vertical scrollbar handle */
extern HWND     vhwndHScroll;    /* horizontal scrollbar handle */
extern HWND     vhwndMenu;                   /* menu bar handle */
extern LONG     vlXScreen;                      /* screen width */
extern LONG     vlYScreen;                     /* screen height */
extern LONG     vlcxVScroll;         /* vertical scrollbar size */
extern LONG     vlcyHScroll;       /* horizontal scrollbar size */
extern HWND     vhwndViewForeClr;      /* foregrnd color handle */
extern HWND     vhwndViewBackClr;      /* backgrnd color handle */
extern LONG     vlcyTitle;                   /* titlebar height */
extern LONG     vlcyMenu;                     /* menubar height */
extern LONG     vlcxBorder;                /* size border width */
extern LONG     vlcyBorder;               /* size border height */
extern LONG     vlForeClr;          /* initial foreground color */
extern LONG     vlBackClr;          /* initial background color */
#if (defined(PORT_16) || defined(PORT_32))
extern PBYTE vpbImgBuf;                 /* image storage buffer */
#elif PORT_S132
extern BYTE _far16 *vpbImgBuf;          /* image storage buffer */
#else
                                 /* not defined for 16-bit port */
#endif
extern PFNWP    vpfnwpFrame;     /* main frame-window procedure */
extern SIZEL    vsizlImg;      /* width and height of the image */
extern ULONG    vulScrollYMax;        /* maximum Y scroll range */
extern ULONG    vulScrollXMax;        /* maximum X scroll range */
extern POINTL   vptlSave;              /* save/restore position */
extern HBITMAP  vhbm;                         /* bit-map handle */
extern HPOINTER vhptrWait;          /* system hourglass pointer */
extern HPOINTER vhptrArrow;             /* system arrow pointer */

/*--------------------------------------------------------------*\
 *  Entry point declarations                                    *
\*--------------------------------------------------------------*/
/* from img_pnt.c */
VOID PaintUnSizedImage(VOID);
VOID PaintSizedImage(VOID);
VOID PaintDrawImage(VOID);

/* from img_init.c */
USHORT Init(VOID);
VOID PASCAL ExitProc(USHORT usTermCode);

/* from img_size.c */
VOID SizeMainWindow(VOID);
BOOL SizeCalculateMaxWindow(PRECTL prclBound);
VOID SizePositionImage(MPARAM mp2);
VOID SizeVScroll(MPARAM mp2, RECTL rcl, POINTL ptl);
VOID SizeHScroll(MPARAM mp2, RECTL rcl, POINTL ptl);

/* from img_main.c */
BOOL cdecl main(VOID);
SHORT MessageBox(HWND hwndOwner, SHORT idMsg, SHORT idCaption,
                 SHORT fsStyle, BOOL fBeep);
MRESULT EXPENTRY MainWndProc(HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2);
MRESULT EXPENTRY FrameWndProc(HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2);

/* from img_dlg.c */
MRESULT EXPENTRY ColorDlgProc(HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2);
MRESULT EXPENTRY AboutBoxDlgProc(HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2);

/* from img_menu.c */
VOID MenuInit(MPARAM mp1, MPARAM mp2);
SHORT MenuGetColorItemId(SHORT idBase);
VOID MenuCheckItem(HWND hwndMenu, SHORT idItem, BOOL fCheck);

/* from img_view.c */
VOID ViewSwitchMode(VOID);
VOID ViewChangeColor(USHORT idColor);
VOID ViewSavePosition(VOID);
VOID ViewRestorePosition(VOID);

/* from img_file.c */
BOOL FileOpen(MPARAM mp2);
VOID FileExit(MPARAM mp2);

/* from img_help.c */
VOID HelpInit(VOID);
VOID HelpHelpForHelp(MPARAM mp2);
VOID HelpExtended(MPARAM mp2);
VOID HelpIndex(MPARAM mp2);
VOID HelpAbout(VOID);
VOID HelpDestroyInstance(VOID);

/* from img_util.c */
#if (defined(PORT_16) || defined(PORT_32))
LONG UtilFindFileSize(PSZ pszFilename);
BOOL UtilMemoryAllocate(USHORT cbSize, PBYTE FAR *ppByte);
BOOL UtilGetFileHandle(PSZ pszFilename, PHFILE phfile);
VOID UtilUpdateTitleText(HAB hab, HWND hwnd, PSZ pszFullFile);
#endif
#ifdef PORT_S132
LONG _far16 pascal UtilFindFileSize(CHAR _far16 *pszFilename);
BOOL _far16 pascal UtilMemoryAllocate(USHORT cbSize, BYTE _far16 * _far16 *ppByte);
BOOL _far16 pascal UtilGetFileHandle(CHAR _far16 *pszFilename, HFILE _far16 *phfile);
VOID _far16 pascal UtilUpdateTitleText(HAB hab, HWND hwnd, CHAR _far16 *pszFullFile);
#endif
#ifdef PORT_16
VOID UtilMemoryFree(SEL sel);
#elif PORT_S132
VOID _far16 pascal UtilMemoryFree(SEL sel);
#elif PORT_32
VOID UtilMemoryFree(PBYTE pByte);
#else
#endif

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