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Variable problem..

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Join Date: Nov 2007

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lifei

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Variable problem..

Dec 7th, 2007

Can i know what's wrong with the below source code? can i put the variable x, y like this? How it can't work?

 Help with Code Tags 
 c++ Syntax (Toggle Plain Text) 
#include <Windows.h>
#include <mmsystem.h>
#pragma comment (lib,"winmm.lib")
 
int ,x,y;
void CTestingDlg::OnPlay() 
{
	// TODO: Add your control notification handler code here
 
                UpdateData(TRUE);
 
	CString strFreq;
	CString strHL;
 
	strFreq = m_strFreq;
	strHL = m_strHL;
 
	strFreq.MakeUpper();
	strHL.MakeUpper();
 
	if(strFreq=="x" && strHL=="y")
		   PlaySound("x_y_2.wav",NULL,SND_FILENAME);
 
}
#include <Windows.h>
#include <mmsystem.h>
#pragma comment (lib,"winmm.lib")

int ,x,y;
void CTestingDlg::OnPlay() 
{
	// TODO: Add your control notification handler code here
			
                UpdateData(TRUE);

	CString strFreq;
	CString strHL;

	strFreq = m_strFreq;
	strHL = m_strHL;
	
	strFreq.MakeUpper();
	strHL.MakeUpper();

	if(strFreq=="x" && strHL=="y")
		   PlaySound("x_y_2.wav",NULL,SND_FILENAME);

}

Last edited by Ancient Dragon; Dec 7th, 2007 at 7:33 am. Reason: add code tags

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Ancient Dragon Ancient Dragon is offline

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Re: Variable problem..

Dec 7th, 2007

what makes you think you can compare integers and strings ? Ain't going to work. If the strings contain numeric digits then convert them to integers before doing the comparison.

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.

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Join Date: Nov 2007

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lifei

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Re: Variable problem..

Dec 7th, 2007

if it is necessary to used the variable, how should i write?

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Ancient Dragon Ancient Dragon is offline

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Still Learning

Re: Variable problem..

Dec 7th, 2007

Are you new to c and c++ languages? You are asking a 1st semester student type of question. If you are then attempting to write an MFC program is way beyond your current level of knowledge. Get an introduction to computer programming book and start studying from page 1. Then in a year or so you will be ready for that MFC program.

Don't PM me with questions -- you might get a nasty PM in response. If you have a question then post it in one of the forums.

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Join Date: Dec 2007

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Aashath

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Re: Variable problem..

Dec 21st, 2007

•

Originally Posted by lifei

Can i know what's wrong with the below source code? can i put the variable x, y like this? How it can't work?
Help with Code Tags

c++ Syntax (Toggle Plain Text)
#include <Windows.h>
#include <mmsystem.h>
#pragma comment (lib,"winmm.lib")
 
int ,x,y;
void CTestingDlg::OnPlay() 
{
	// TODO: Add your control notification handler code here
 
                UpdateData(TRUE);
 
	CString strFreq;
	CString strHL;
 
	strFreq = m_strFreq;
	strHL = m_strHL;
 
	strFreq.MakeUpper();
	strHL.MakeUpper();
 
	if(strFreq=="x" && strHL=="y")
		   PlaySound("x_y_2.wav",NULL,SND_FILENAME);
 
}
#include <Windows.h> #include <mmsystem.h> #pragma comment (lib,"winmm.lib") int ,x,y; void CTestingDlg::OnPlay() { // TODO: Add your control notification handler code here UpdateData(TRUE); CString strFreq; CString strHL; strFreq = m_strFreq; strHL = m_strHL; strFreq.MakeUpper(); strHL.MakeUpper(); if(strFreq=="x" && strHL=="y") PlaySound("x_y_2.wav",NULL,SND_FILENAME); }

a ) CString to int :

CString csNumber = "3";
int x;
x = atoi(csNumber); //defined in <cstdlib>

b) int to CString

int x = 23;
CString csNumber;
csNumber.format("%d", x);

This will do .....

Make urself comfortable with basic C++ before moving into MFC ....

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Brent.tc

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Re: Variable problem..

Dec 21st, 2007

You have an extra comma (',') before the x... Is that your question, and is that even a problem?

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Join Date: Dec 2007

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kunals

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Re: Variable problem..

Dec 23rd, 2007

I think the address befor var may be the reason

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invisal

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Re: Variable problem..

Dec 23rd, 2007

Help with Code Tags

(Toggle Plain Text)

int ,x,y;

Delete the comma.

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
strFreq.MakeUpper();
strHL.MakeUpper();
 
if(strFreq=="x" && strHL=="y")
strFreq.MakeUpper();
strHL.MakeUpper();

if(strFreq=="x" && strHL=="y")

You made those strings into upper-case and then you compare it with lower-case string.

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