1. Free Sci Calculator/Server now available
- Posted by Al Getz <Xaxo at aol.com>
Feb 25, 2005
-
Last edited Feb 26, 2005
Hi there,
I promised some people i'd post this, and i think it's a good idea
anyway.
I've recently written a scientific calculator (which now appears in the
archives) that evaluates functions and expressions and stuff like that.
You can enter in directly, pass between two open calculators, or
send/retrieve functions and values from your own app using it as
a server to your application.
In Place Evaluation allows you to evaluate expressions right in
your own text document (it's a text editor also), so you can write
a report or something where you have a lot of math to do in it and
dont have to use a separate calculator. It integrates with Wordpad
so you can drag between Wordpad and it's built in text editor, functions
or just plain text, or any other ole enabled program, maintaining
the color of the text objects.
For a really simple example...
say you want to enter the function
y(x)=x^2+x-1
You just type it in the text window, highlight it, then click
(or use the quick menu Alt-v-v) and the function is entered.
If you type something to be evaluated right away, you might type:
2+3
then you highlight it, click "In Place Eval", and it turns into:
2+3=5
Extra long calculations dont hold up the normal window processing either.
Oh yeah, you can save all your data and load again later.
Included are some EE formulas and a very short table of indefinite
integrals, two help files, the Euphoria include file (for using it
as a server) along with a demo Euphoria program that sends and
retrieves functions and data to and from the calculator from a separate
process.
Of course it does algebra, trig, and calculus.
I'd hope some Euphoria programmers could try it also. Any ideas or
whatever will be appreciated.
Take care,
Al
And, good luck with your Euphoria programming!
My bumper sticker: "I brake for LED's"
2. Re: Free Sci Calculator/Server now available
Hi Al,
I looked at your fc_connect.ew
May I suggest that you change the value
of WM_CD constant to a value that comply with Microsoft win32 api
some value in between #8000 and #FFFF
here an excerpt from microsoft reference:
The WM_APP constant is used by applications to help define private messages,
usually of the form WM_APP+X, where X is an integer value.
#define WM_APP 0x8000
#define WM_USER 0x400
The WM_APP constant is used to distinguish between message values that
are reserved for use by the system and values that can be used by an
application to send messages within a private window class.
The following are the ranges of message numbers available.
Range Meaning
0 through WM_USER-1 Messages reserved for use by the system.
WM_USER through 0x7FFF Integer messages for use by private window classes.
WM_APP through 0xBFFF Messages available for use by applications.
0xC000 through 0xFFFF String messages for use by applications.
Greater than 0xFFFF Reserved by the system.
Message numbers in the first range (0 through WM_USER1) are defined by
the system. Values in this range that are not explicitly defined are
reserved by the system.
Message numbers in the second range (WM_USER through 0x7FFF) can be
defined and used by an application to send messages within a private
window class. These values cannot be used to define messages that are
meaningful throughout an application, because some predefined window
classes already define values in this range. For example, predefined
control classes such as BUTTON, EDIT, LISTBOX, and COMBOBOX may use
these values. Messages in this range should not be sent to other
applications unless the applications have been designed to exchange
messages and to attach the same meaning to the message numbers.
Message numbers in the third range (0x8000 through 0xBFFF) are available
for application to use as private messages. Message in this range do not
conflict with system messages.
Message numbers in the fourth range (0xC000 through 0xFFFF) are defined
at run time when an application calls the RegisterWindowMessage function
to retrieve a message number for a string. All applications that register
the same string can use the associated message number for exchanging
messages. The actual message number, however, is not a constant and
cannot be assumed to be the same between different sessions.
Message numbers in the fifth range (greater than 0xFFFF) are reserved by
the system.
Regards,
Jacques d.
3. Re: Free Sci Calculator/Server now available
Hi there Jacques,
Thanks for the great info. My mistake i guess, in that i didnt
write the whole name of the message out, ie
WM_CD
is short for
WM_COPYDATA
which is a system defined message used to pass data between programs.
Make more sense now?
Sorry about that.
Hope you liked the calculator anyway 
Take care,
Al
jacques deschênes wrote:
>
>
> Hi Al,
>
> I looked at your fc_connect.ew
> May I suggest that you change the value
> of WM_CD constant to a value that comply with Microsoft win32 api
> some value in between #8000 and #FFFF
>
> here an excerpt from microsoft reference:
>
> The WM_APP constant is used by applications to help define private messages,
> usually of the form WM_APP+X, where X is an integer value.
>
>
> #define WM_APP 0x8000
> #define WM_USER 0x400
>
> The WM_APP constant is used to distinguish between message values that
> are reserved for use by the system and values that can be used by an
> application to send messages within a private window class.
> The following are the ranges of message numbers available.
>
> Range Meaning
> 0 through WM_USER-1 Messages reserved for use by the system.
> WM_USER through 0x7FFF Integer messages for use by private window classes.
> WM_APP through 0xBFFF Messages available for use by applications.
> 0xC000 through 0xFFFF String messages for use by applications.
> Greater than 0xFFFF Reserved by the system.
>
> Message numbers in the first range (0 through WM_USER1) are defined by
> the system. Values in this range that are not explicitly defined are
> reserved by the system.
>
> Message numbers in the second range (WM_USER through 0x7FFF) can be
> defined and used by an application to send messages within a private
> window class. These values cannot be used to define messages that are
> meaningful throughout an application, because some predefined window
> classes already define values in this range. For example, predefined
> control classes such as BUTTON, EDIT, LISTBOX, and COMBOBOX may use
> these values. Messages in this range should not be sent to other
> applications unless the applications have been designed to exchange
> messages and to attach the same meaning to the message numbers.
>
> Message numbers in the third range (0x8000 through 0xBFFF) are available
> for application to use as private messages. Message in this range do not
> conflict with system messages.
>
> Message numbers in the fourth range (0xC000 through 0xFFFF) are defined
> at run time when an application calls the RegisterWindowMessage function
> to retrieve a message number for a string. All applications that register
> the same string can use the associated message number for exchanging
> messages. The actual message number, however, is not a constant and
> cannot be assumed to be the same between different sessions.
>
> Message numbers in the fifth range (greater than 0xFFFF) are reserved by
> the system.
>
> Regards,
> Jacques d.
>
And, good luck with your Euphoria programming!
My bumper sticker: "I brake for LED's"
