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- ;/* screen34to37.c - Execute me to compile me with SAS 5.10
- LC -b1 -cfistq -v -y -j73 screen34to37.c
- blink FROM LIB:c.o screen34to37.o TO screen34to37 LIB LIB:lc.lib LIB:amiga.lib
- quit
- */
-
- /*
- Copyright (c) 1992 Commodore-Amiga, Inc.
-
- This example is provided in electronic form by Commodore-Amiga, Inc. for
- use with the "Amiga ROM Kernel Reference Manual: Libraries", 3rd Edition,
- published by Addison-Wesley (ISBN 0-201-56774-1).
-
- The "Amiga ROM Kernel Reference Manual: Libraries" contains additional
- information on the correct usage of the techniques and operating system
- functions presented in these examples. The source and executable code
- of these examples may only be distributed in free electronic form, via
- bulletin board or as part of a fully non-commercial and freely
- redistributable diskette. Both the source and executable code (including
- comments) must be included, without modification, in any copy. This
- example may not be published in printed form or distributed with any
- commercial product. However, the programming techniques and support
- routines set forth in these examples may be used in the development
- of original executable software products for Commodore Amiga computers.
-
- All other rights reserved.
-
- This example is provided "as-is" and is subject to change; no
- warranties are made. All use is at your own risk. No liability or
- responsibility is assumed.
- */
-
-
- #define INTUI_V36_NAMES_ONLY /* We'll use the newer Intuition names. */
-
- #include <exec/types.h> /* Amiga data types. */
- #include <intuition/intuition.h> /* Lots of important Intuition */
- #include <intuition/screens.h> /* structures we will be using. */
-
- #include <clib/exec_protos.h> /* Function prototypes */
- #include <clib/dos_protos.h>
- #include <clib/intuition_protos.h>
-
- #ifdef LATTICE
- int CXBRK(void) { return(0); } /* Disable Lattice CTRL/C handling */
- int chkabort(void) { return(0); } /* really */
- #endif
-
- struct Library *IntuitionBase; /* Intuition library base */
-
- /* Simple example to show how to open a custom screen that gives the new look
- * under V37, yet still works with older version of the operating system.
- * Attach the tag SA_Pens and a minimal pen specification to ExtNewScreen,
- * and call the old OpenScreen() function. The tags will be ignored by
- * V34 and earlier versions of the OS. In V36 and later the tags are
- * accepted by Intuition.
- */
-
- VOID main(int argc, char **argv)
- {
- UWORD pens[] = { ~0 }; /* This is the minimal pen specification*/
- struct Screen *my_screen; /* Pointer to our new, custom screen */
- struct ExtNewScreen myscreen_setup; /* Same as NewScreen with tags attached */
- struct TagItem myscreen_tags[2];/* A small tag array */
-
- /* Open the library before you call any functions */
- IntuitionBase = OpenLibrary("intuition.library",0);
- if (NULL != IntuitionBase)
- {
- /* Fill in the tag list with the minimal pen specification */
- myscreen_tags[0].ti_Tag=SA_Pens;
- myscreen_tags[0].ti_Data=(ULONG) pens;
- myscreen_tags[1].ti_Tag=TAG_DONE;
-
- /* The screen is opened two bitplanes deep so that the
- ** new look will show-up better.
- **/
- myscreen_setup.LeftEdge=0;
- myscreen_setup.TopEdge=0;
- myscreen_setup.Width=640; /* Smaller values here reduce */
- myscreen_setup.Height=STDSCREENHEIGHT; /* drawing area and save memory.*/
- myscreen_setup.Depth=2; /* Two planes means 4 colors. */
- myscreen_setup.DetailPen=0; /* Normal V34 pen colors. */
- myscreen_setup.BlockPen=1;
- myscreen_setup.ViewModes=HIRES;
- myscreen_setup.Type=CUSTOMSCREEN | NS_EXTENDED; /* Extended NewScreen flag */
- myscreen_setup.Font=NULL;
- myscreen_setup.DefaultTitle="My Screen";
- myscreen_setup.Gadgets=NULL;
- myscreen_setup.CustomBitMap=NULL;
- /* Attach the pen specification tags to the ExtNewScreen structure */
- myscreen_setup.Extension=myscreen_tags;
-
- if (NULL != (my_screen =
- OpenScreen((struct NewScreen *)&myscreen_setup)));
- {
- /* screen successfully opened */
-
- Delay(200L); /* normally the program would be here */
-
- CloseScreen(my_screen);
- }
- CloseLibrary(IntuitionBase);
- }
- }
-