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  #1  
Old January 9th, 2002, 03:23 PM
syin syin is offline
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Convert CString to ASCII values

In VC++ 6, I need to convert each character in a CString to their ASCII values. What function(s) should I use?

Any help is appreciated. Thanks.
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Old January 9th, 2002, 03:40 PM
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Re: Convert CString to ASCII values

Sounds like you're compiling with support for UNICODE strings. In that case, you use wctomb().
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Old January 9th, 2002, 04:13 PM
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First of all, thanks for the quick response, Jon.

Actually I'm not doing anything related to UNICODE. The purpose of my function is to convert every single character in a CString to its ASCII value.

For example:
"abc.com" -> 97 98 99 46 99 111 109

I need the numerical ASCII values, so I dun think wctomb would work in my case. Do you have any other suggestions? Thanks.

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Old January 9th, 2002, 04:38 PM
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Hmm...

Well, I suppose you can get the buffer (CString::GetBuffer()) and then assign the characters to an int. A char is really an int (short), so the types are interchangeable.

Ex:

char mychar = 'a';

printf("char: %c\n", mychar); // Prints the character 'a'
printf("ASCII: %d\n", mychar); // Prints the number 97

That's the only way I can think of to do get the ASCII value.

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Old January 9th, 2002, 05:51 PM
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Thanks again.

I want to convert characters in name to ASCII, then append this to name2.

eg. name = "abc", name2="test";
then after the operation, i need "test878889".


Here is what I've got so far

CString name, name2;
char *ptr;
int length = name.GetLength();
int i;

ptr = name.GetBufferSetLength(length);

for (i=0; i<length; i++, ptr++)
{
name += (short)(*ptr);
}


but of course it's not turning out right. I get "testabc" instead of what i needed. what do you do to (*ptr) to get it's numerical value? Thanks a lot for your help!

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Old January 9th, 2002, 06:04 PM
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Just adding...

you can easily assign the ascii value to an integer variable....

int i;
char c='A';

i=c; // i is now 65.
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Old January 9th, 2002, 06:58 PM
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Ok the problem is that I'm not converting interger to CString correctly. I used _itoa() and it worked.

Thanks for all your help.

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