MultiLine Edit Box Problem

[RJK]

I am creating a betting program, basically what it does it it calculates the bet and outputs it into a Multi Line Edit Box, but it only allows a certain amount of characters:

char szNum[20], szBet[20], szPrice1[4], szTotal[20], szReturns[20], szOutput[MAX_PATH];
                    char *cPrice1[1];
                    stringstream strBet, strPrice1, strOutput;
                    int nAdd;
                    float fReturns, fTot, fRet;
                    
                    GetWindowText(GetDlgItem(hwnd, IDC_STAKE), szNum, MAX_PATH); 
                    GetWindowText(GetDlgItem(hwnd, IDD_BETDD), szBet, MAX_PATH);  
                    GetWindowText(GetDlgItem(hwnd, IDC_PRICE1), szPrice1, MAX_PATH);
                    
                    strBet.str(szBet);                      
                    
                    if (strlen(szNum) == 0)
                    {
                    MessageBox(NULL, "Please Enter a Stake", "Error", MB_OK | MB_ICONWARNING);
                    } else if (strlen(szBet) == 0) {
                    MessageBox(NULL, "You have not selected a Bet Type", "Error", MB_OK | MB_ICONWARNING);
                    } else if (strBet.str() == "Single"){
                        
                    
                    cPrice1[0] = strtok(szPrice1, "\\");
                    cPrice1[1] = strtok(NULL, "\\");
                    
                    fTot = atof(szNum) / atof(cPrice1[1]);
                    
                    nAdd = atoi(cPrice1[0]) + atoi(cPrice1[1]);
                    
                    fReturns = fTot * nAdd;
                    
                    GetWindowText(GetDlgItem(hwnd, IDC_PRICE1), szPrice1, MAX_PATH);
                    GetWindowText(GetDlgItem(hwnd, IDC_OUTPUT), szOutput, MAX_PATH);
                    
                    strOutput.str(szOutput);
                    
                     for (int i = 0; i < strlen(szNum); i++)
                    {
                        if (!isdigit(szNum[i])) {
                            MessageBox(NULL, "Invalid Character, Returns = £0", "Error", MB_OK | MB_ICONWARNING);
                            fReturns = 0;
                            SetWindowText(GetDlgItem(hwnd, IDC_STAKE), "Error");
                            i = strlen(szNum);
                    }
                    }
                    
                    strBet << strOutput.str() << "Single Bet: £" << szNum << " @ " << szPrice1 << " Returns: £" << fReturns << "\r\n";
                    
                    SetWindowText(GetDlgItem(hwnd, IDC_OUTPUT), strBet.str().c_str());
                    GetWindowText(GetDlgItem(hwnd, IDC_RETURNS), szReturns, MAX_PATH);
                    
                    fRet = atof(szReturns) + fReturns;
                    
                    sprintf(szReturns, "%.2f", fRet);
                     
                    SetWindowText(GetDlgItem(hwnd, IDC_RETURNS), szReturns);     
                                                     
                    }

This is the code when the user clicks the 'Calculate Bet' button.

Note: I am learning WinAPI so if there are problems or any better ways of doing things that i have done, please feel free to say.

If i click the button loads of times (for testing) it only allows a certain amount of characters:

http://img444.imageshack.us/img444/8153/problemx.png

You can see that once it gets to a certain line it just adds onto it and i cant go down any further.

Can anyone provide a solution.

Thanks in advance,

RJK

[cosmicvoid]

char *cPrice1[1];
... snip ...
cPrice1[0] = strtok(szPrice1, "\\");
cPrice1[1] = strtok(NULL, "\\");
... snip ...

I haven't analyzed your code logic, but I do see one error:
you declare an array of one element. and then put two entries in it (index overflow).

I'm guessing you meant: char *cPrice1[2];

[RJK]

Hey thanks for the info, i thought that when you declared an array [1] would be [0] & [1].

And if needed here is how i do my Multi Line Edit Box, if this error could be in there:

HWND hTxtOutput = CreateWindow("Edit", NULL, WS_CHILD | WS_VISIBLE | WS_BORDER | ES_MULTILINE | ES_AUTOHSCROLL| ES_WANTRETURN | WS_VSCROLL, 10, 10, 400, 300, hwnd, (HMENU) IDC_OUTPUT, NULL, NULL);

Thanks.