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Dark GDK / Printing data to screen as well as strings: using dbText or dbPrint?

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bigbrother 2000
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Posted: 29th Oct 2006 20:08
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Hello,

My aim is to print out some data to screen based on which object the mouse it positioned at.

the 'string' would be like ("OBJECT: " + objectNumber + " COLOR: "+stringColor);

What is the best way to do this in the sdk. the text and print commands do not accept strings so they cannot be created like above.

What options are available to construct and print data to the screen of different types above?

thanks for any help

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OSX Using Happy Dude
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Posted: 29th Oct 2006 20:12
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Quote: "the text and print commands do not accept strings so they cannot be created like above."

Yes they do - although actually, in C, a string is a NULL terminated array of characters.

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bigbrother 2000
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Posted: 29th Oct 2006 20:19
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string qwe = "x";

dbText(dbMouseX()+ 10,dbMouseY()+10,qwe);

I must be passing in the string wrong if they accept them, it compiles with this error:
error C2664: 'dbText' : cannot convert parameter 3 from 'std::string' to 'char *'
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called

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EddieB
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Posted: 29th Oct 2006 20:52
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string qwe = "x";

dbText(dbMouseX()+ 10,dbMouseY()+10,qwe.c_str());
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Jna99
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Posted: 29th Oct 2006 22:48 Edited at: 29th Oct 2006 22:49
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How I print variables...except BOOL type

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bigbrother 2000
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Posted: 30th Oct 2006 16:56
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Thanks EddieB,

I tried the .c_str()

this error was returned:

error C2664: 'dbText' : cannot convert parameter 3 from 'const char *' to 'char *'
Conversion loses qualifiers

Am I missing anything else:

dbText(dbMouseX()+ 10,dbMouseY()+10,qwe.c_str());

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bigbrother 2000
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Posted: 31st Oct 2006 16:10
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Anyone else have problems outputing strings using the dbText command, the stringvariable.c_str() resulted in an error, see above,

Anyone got working code of printing strings to screen?

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Kaiyodo
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Posted: 31st Oct 2006 17:08
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You'll need to cast off the const first ...

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EddieB
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Posted: 31st Oct 2006 18:51
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Or you could just do:

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bigbrother 2000
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Posted: 31st Oct 2006 23:50
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Thanks Kaiyodo i got it compiling with the suggested add on.

this is more of a C++ thing now rather than a SDK, but i would like to create a string with a string and a variable, concatenation, is this possible, what type of code will allow for this to happen as the code below does not compile?

qwe = ("FLOOR: " + floorNo);


dbText(dbMouseX()+ 10,dbMouseY()+10,const_cast<char *>(qwe.c_str()));

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Miguel Melo
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Posted: 1st Nov 2006 00:11
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Try something like this (from the top of my head, not tried it):

qwe = string("FLOOR: ") + _itoa( floorNo );

or, if that fails,

qwe = string("FLOOR: ") + string(_itoa( floorNo ));

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