C / C++ / MFC

vivek.s.vivek wrote:

Whether C++ templates and generic programmings concepts are same?.

An example:

//function that calculates the sum of two ints without using templates... 
 
int Sum(int nNum1, int nNum2)
{
    return (nNum1 + nNum2);
}
//The above function can calculate the sum of only two ints
 
//for eg:
 
int nSum   = Sum(2, 4);
 
//What about two floats...
 
float fSum = (float)Sum((int)2.0f, (int)3.5f); //eek :eek:
 
 
 
//function that calculates the sum of any two number of the same type using templates...
 
template<class T> T Sum(T num1, T num2)
{
    return (num1 + num2);
}
 
//how to call this function
 
float    fSum = Sum<float>  (2.0f, 56.34f);
int      nSum = Sum<int>    (2, 56);
double   dSum = Sum<double> (2.002, 56.809);
 
//see this is what generic programming is all about

 Scorpio  wrote:

I have come across this wparm,lparm terms a lot of time ,can anybody please tell me what are this paramaters and what they contain when used in messaging.

MyOwnShadow wrote:

If my application runs, a new com port (com7 or another) will be created or activated on which i have full control.

Krishnatv wrote:

can we inherit singleton class ?

VinayCool wrote:

i want to pass the entire text file to CRichEditCtrl

VinayCool wrote:

and i want to highlight some words after passing the text file to CRichEditCtrl

FILE *fp = fopen(str,"r");<br />
if (fp)<br />
{<br />
	// goto the end of file<br />
	fseek(fp, 0L, SEEK_END);<br />
	// get the length of the file<br />
	long fileLen = ftell(fp);<br />
	// go back to the start of the file<br />
	rewind(fp);<br />
<br />
	// allocate buffer for file contents<br />
	char* text = new char[fileLen + 1];<br />
<br />
	// read the file into the buffer<br />
	fread(text, 1, fileLen, fp);<br />
<br />
	// set the window text<br />
	m_FCONT.SetWindowText(text);<br />
<br />
	delete [] text;<br />
<br />
	fclose(fp);<br />
}<br />
else<br />
{<br />
	MessageBox("error opening file.",MB_OK | MB_ICONINFORMATION);<br />
	return;<br />
}<br />

VinayCool wrote:

But at the end of edit of edit box i am getting some junk values as shown below.

<br />
 // allocate buffer for file contents<br />
char* text = new char[fileLen + 1];<br />
<br />
// read the file into the buffer<br />
fread(text, 1, fileLen, fp);<br />
<br />
// null terminate the string<br />
text[fileLen] = 0;<br />
<br />

VinayCool wrote:

Can u please also tell me how to highlight a particular word in the Rich edit box.

CHARFORMAT cf;<br />
memset(&cf, 0, sizeof(CHARFORMAT));<br />
cf.cbSize = sizeof(CHARFORMAT);<br />
cf.dwMask = CFM_BOLD;<br />
cf.dwEffects = CFE_BOLD;<br />
<br />
// **** pseudo-code ****<br />
for (int i = 0; i < size of your word list; i++)<br />
{<br />
    m_FCONT.SetSel(word_position[i], word_length[i]);<br />
    m_FCONT.SetSelectionCharFormat(cf);<br />
}<br />