yes, to draw a line between those points

//or you can use HDC hdc=CreateCompatibleDC(GetDC()->m_hDC); HBITMAP hBit=CreateCompatibleBitmap(GetDC()->m_hDC,X,Y); SelectObject(hdc,hBit); ... ... SetPixel(hdc,20,20,RGB(120,120,120));

Of course you can use DLL with VC++.

Hello chaitanya. That's much easier. That way, you just append to the file. Just make sure you put a '\n' character ONLY at the end of line. Today, you write a '\n' for each value, which gives a newline after each value. That's the reason why you get each value on a separate text line in the file. I don't know what function you are using for writing to the file today, but i suspect you are using fputc() or fputs(), right? There are numerous ways to write to a file, this is just one way. You can to this, using fputc. (I assume FILE * file): int number = '1'; fputc(number, file); fputc((int) ' ', file); number = '2'; fputc(number, file); fputc((int) ' ', file); number = '3'; fputc(number, file); fputc((int) ' ', file); And the last number: fputc(number, file); fputc((int) '\n', file); Or, if you got all numbers at the same time, you can do this: fprintf(file, "%d %d %d %d\n", 1,2,3,4); fprintf(file, "%d %d %d %d\n", 5,6,7,8); This is very basic knowledge, I think you should read a good beginners book about C and then go on with a book about C++. Good luck Kakan

Hi Chaitanya, Try out this. FILE *fp; fp = fopen("chat.txt","w"); int a[10] = {5,15,25,35,45,55,65,75,85,95}; char p[20]; for (int i = 0;i < 10; i++) { itoa(a[i],p,10); fprintf(fp,"%s ",p); } Chetan. Helping others satisfies you...

Here's one way: FILE *pFile = fopen("file.txt", "w"); for (int x = 0; x < sizeof(array) / sizeof(array[0]); x++) fprintf("%d\n", array[x]); fclose(pFile); Others exist, too. "Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain "There is no death, only a change of worlds." - Native American Proverb

Hi chaitanya, I hope the below link helps u. http://www.its.strath.ac.uk/courses/c/ Chetan. Helping others satisfies you...

Yes, Tahnk you for your answer. I got the solution.

There isn't a memcat() function that corresponds to the strcat() function. If you think about it, a 'memcat' function doesn't make sense. strcat() does string concatenation. A string is a sequence of bytes, terminated by a zero byte. The mem* functions operate on memory, which is a sequence of bytes, but not terminated. Instead, the mem*() functions require that you specify a size for the region of memory you are copying. Given that explanation, memcpy() will do 'memory concatenation' for you: memcpy(destination + destination_length,source,source_length); destination_length += source_length; In this case, you are 'concatenating' a source buffer that is source_length bytes long to the end of a destination buffer that is, prior to the concatenation, destination_length bytes long. Software Zen: delete this; Fold With Us![^]

You will need to be more specific. We need to know how the arrays where created to begin with. How about a little code, becuase there is more than one way depending on how your created them. INTP Every thing is relative...

chaitanya22 wrote: i would like to assign source array to new array. eg: assinging BYTE sourcearray[212] to BYTE destarray[1024],,,, Use: memcpy(destarray, sourcearray, 108 * sizeof(BYTE)); "Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain "There is no death, only a change of worlds." - Native American Proverb

I just don't see what you are talking about. What is the problem with storing these values in an array ? The varying size ? Then you can use a vector from the STL, it will let you add and retrieve elements in the array without worying about the size. BTW, use the pre or code tags when you post code.

Do you mean a string in hexadecimal format? You can do such a conversion with strtol. If you set the last parameter to 0 it does even automatically detect the number base depending on the first characters, e.g. if you have a string like 0xFF it will be converted to the integer value 255. Here is an example code: const char* szNumber = "0x1234"; char* pHelp; int nNumber = strtol(szNumber, &pHelp, 0); Regards Konrad

chaitanya22 wrote: if(lnewData[8]=={0x02, 0x00, 0x02, 0x00, 0x20, 0x24, 0x34,0x08}) What is this? Try: BYTE compare[8] = {0x02, 0x00, 0x02, 0x00, 0x20, 0x24, 0x34,0x08}; if (memcmp(lnewData, compare, 8 * sizeof(BYTE)) == 0) { memcpy(storearray, lnewData, 8 * sizeof(BYTE)); } "Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain "There is no death, only a change of worlds." - Native American Proverb