Passing parameters to function problem.

[viral_umang hotmail com]

Hi! I am using rich edit box in my application in VC6. I am getting the content of the rich edit box and taking the bunch of three characters at a time to pass its value to a function. The function having 3 arguments of the type _TCHAR. Now when i am passing the value for this 3 arguments say 225,226,227 which is my bunch of 3 characters taken from the rich editbox the function changes this values to negative values like -31,-32,-33. Can anybody tell me what is the problem? Thanks in advance. Viral

[cp9876]

Are you sure that it is not just a formatting problem, are you formatting them as unsigned?

Peter "Until the invention of the computer, the machine gun was the device that enabled humans to make the most mistakes in the smallest amount of time."

[rp_suman]

Can you tell Where the values are changing? Do you mean the function getting different values other than you want to pass (or) the parameters changed after the function call? Without source code its difficult to guess what is the problem. Best Regards, Suman

[CPallini]

A char represents a signed byte. The bit patterns of the unsigned chars {225,226,227} are, of course, the same of the chars {-31,-32,-33}{-31,-30,-29}. You have to cast the data unsigned char, before passing it to your function.

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.