Delphi Error E2010 Incompatible types: 'string' and 'procedure, untyped pointer or untyped parameter'

Question

I used TStringList and something that looks like:

geo: TStringList;
response: TStringStream;
  begin
  http:=tidhttp.Create(nil);
  try
    { TODO -oUser -cConsole Main : Insert code here }
    geo:=TStringList.Create;
    response:=TStringStream.Create('');
    geo.Add('name=stas');
    geo.Add('pass=431');
    s:=http.Get('http://test.me');
    writeln(http.ResponseText);
    writeln(s);
    s:=http.Post('http://test.me',geo,response);

but something is wrong. For example when I run it it's alerting with the error [[DCC Error] consoleHttp.dpr(29): E2010 Incompatible types: 'string' and 'procedure, untyped pointer or untyped parameter'] in s:=http.Post('http://test.me',geo,response). What did I do wrong?

It seems he might think that the geo stuff is some http-headers and response is the response? — Warren P
– Warren P, Commented Nov 18, 2011 at 2:43

RRUZ · Accepted Answer · 2011-11-18 02:18:35Z

5

This error means which you are passing wrong parameters to the method TIdHTTP.post. this method has several overloads

function Post(AURL: string; ASource: TIdStrings): string; overload;
function Post(AURL: string; ASource: TIdStream): string; overload;
function Post(AURL: string; ASource: TIdMultiPartFormDataStream): string; overload;
procedure Post(AURL: string; ASource: TIdMultiPartFormDataStream; AResponseContent: TIdStream); overload;
procedure Post(AURL: string; ASource: TIdStrings; AResponseContent: TIdStream); overload;
procedure Post(AURL: string; ASource, AResponseContent: TIdStream); overload;

but none match with the parameters which you are passing.

answered Nov 18, 2011 at 2:18

RRUZ

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Comments

dan-gph · Accepted Answer · 2013-10-02 07:25:06Z

4

do this:

http.Post('http://test.me',geo,response);

instead of:

s:=http.Post('http://test.me',geo,response);

The only matching method is a procedure, but procedures don't return values. The error message is saying that you can't assign a procedure to a string.

edited Oct 2, 2013 at 7:25

dan-gph

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answered Jan 18, 2012 at 17:25

MarceloXP

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