Incompatible Types

I am using the call to application.messagebox to show a message when I run a syntac check the first calls below clear the syntac check but the third promotes the error "Incompatible types: String and PAnsiChar." The cursor blinks after the first string argument.  Does anyone know why I am getting this error?


1. application.MessageBox('Hello','Hello',mb_ok);
2. Application.MessageBox('You should try to finish'
  + ' the application normally.'#13#13'øTerminate it '
  + 'anyway?', 'Warning', MB_YESNO + MB_DEFBUTTON2 +
  MB_ICONQUESTION + MB_TASKMODAL);

3. if Application.MessageBox('Are you sure you want to delete version ' + intToStr(intVersion) + '?' , 'Question' , mb_YesNo) = ID_Yes then
    begin
end;
mcmahlingAsked:
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odissey1Commented:
Hi mcmahling,

if it wants a character, gie it a character

 S:='Are you sure you want to delete version ' + intToStr(3) + '?';
 if Application.MessageBox( PChar(S) , 'Question' , mb_YesNo) = ID_Yes then
 begin
 end;

regards,
odissey1
kretzschmarCommented:
you must typecast you're string as PChar,
as shown by odissey1,
specially for concataneted strings

>application.MessageBox('Hello','Hello',mb_ok);
here does delphi the typecast for you internally

>Application.MessageBox('You should try to finish'
>  + ' the application normally.'#13#13'øTerminate it '
>  + 'anyway?', 'Warning', MB_YESNO + MB_DEFBUTTON2 +
>  MB_ICONQUESTION + MB_TASKMODAL);

here you must typecast

Application.MessageBox(PChar('You should try to finish'
  + ' the application normally.'#13#13'øTerminate it '
  + 'anyway?'), 'Warning', MB_YESNO + MB_DEFBUTTON2 +
  MB_ICONQUESTION + MB_TASKMODAL);

meikl ;-)


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snehanshuCommented:
Wow!
I just missed 250 points :-)
...Shu
OWASP: Avoiding Hacker Tricks

Learn to build secure applications from the mindset of the hacker and avoid being exploited.

kretzschmarCommented:
i too, shu :-))
odissey1Commented:
no guys, the points are going to  kretzschmar,
cause i've learned the unswer from him not long ago (for 50 points :).

regards,
odissey1

kretzschmarCommented:
no no, odissey, you are first -> you deserve the points ;-)
Lee_NoverCommented:
:)
I'd also suggest using resourcestrings and Format
so you'd have smtn like:


resourcestring
  RSConfirmDeleteVersion = 'Are you sure you want to delete version %d';
  RSConfirmation = 'Cofirmation';

...

Application.MessageBox(PChar(Format(RSConfirmDeleteVersion, [VersionNo]), PChar(RSConfirmation), MB_ICONQUESTION or MB_YESNO)

:)
-Thespian-Commented:
Don't make such a lot of code.

Use:

if MessageDLG('Are you sure?'+#13+'(Yes;No)', mtConfirmation, [mbYes, mbNo], 0)=mrYes then
begin
......
end;
-Thespian-Commented:
--------------
To "kretzschmar"
__________
Please, read e-mail.
__________
Lee_NoverCommented:
thespian .. bleh .. 'coder'
think in advance and more flexibly ..
kretzschmarCommented:
to thespian,
what eMail?

to mcmahling,
are you sure that my grading was not a mistake?
(because i attached no new information to odisseys comment)

meikl ;-)
mcmahlingAuthor Commented:
Hello kretzscmar,

I intend to give you 250 points.
odissey1Commented:
to kretzschmar,

you are graded right. The Q. was: '.. anyone know WHY I am getting this..'. But, honestly, I didn't know why - I know HOWTO.

sincerely,
odissey1  
kretzschmarCommented:
well, ok then,
thanks :-))

glad to be helpful

meikl ;-)
-Thespian-Commented:
To kretzschmar
________________
Check e-mail.
Several days ago I wrote a letter from Ukraine.
kretzschmarCommented:
thespian,
i got it
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