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Can you rewrite your server application as an ISAPI Extension[^] and just use IIS?
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we can put the application in startup but its not the preferable method, Is there any better way of running an application at windows startup?
Suggestions are appreciated.
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You can edit Windows registry:
RootKey="HKEY_LOCAL_MACHINE"
OpenKey= "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run"
or
OpenKey= "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\RunOnce"
for running an application once at win startup
Add new REG_SZ value type, which data is the path for your application
I've tried it with Win 2000
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Thank you newbie its quite useful.
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You can also use the root HKEY_CURRENT_USER with the same keys if you want to limit the app to a specific user. Also avoids the security issues around apps not being able to write to HKEY_LOCAL_MACHINE.
You may be right
I may be crazy
-- Billy Joel --
Within you lies the power for good, use it!!!
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Super Hornet wrote: Is there any better way of running an application at windows startup?
Make it a Windows Service[^] There is a C++ Application Wizard that supplies a starter project for a Service.
led mike
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Hi,
I'm using MFC extension dll.
I've 2 questions.
1. Why do i get exception while trying this:
char* s1 = "";
char* s2 = abc";
strcpy(s1,s2); //exception
But if i try this it works:
char s1[255];
char* s2 = abc";
strcpy(s1,s2);
Why is this so?
2. I've an exposed function BOOL _stdcall SetName(CString& name)
There is a function defined in another class but in same dll as below.
void CMyClass::Myfn(CString& str)
{
m_str = str;
}
where m_str is CString variable declared in header and initialized as
m_str = "" in CMyClass constructor.
I create an object of CMyClass and call Myfn() in SetName.
SetName is called from a vb.net application.
I get exception while assigning m_str = str in Myfn();
(This works fine if i'm calling the dll from an MFC application.)
I solved the problem by making the following changes.
m_str declaration as char m_str[255] and removed initialization from constructor.
Myfn() as
void CMyClass::Myfn(char* str)
{
strcpy(m_str,str)
}
But how did it work? Will it create problem in anyother scenario?
Thanks & Regards,
sanju
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s1 has not enough space to write the content of s2 in it
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For the second question (tox already answered the first): this is simply due to the fact that a CString class (yes, it is a class) is not compatible with whatever VB uses to represent a string.
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1. sanjutvm wrote: Why is this so?
because you've only allocated one byte for s1.
2. just guessing here... tough to say based on what you've shown us. but i doubt vb.net knows anything at all about MFCs CString class. generally, when exposing functions to be called from other languages, it's best to stick to primitive types:
BOOL _stdcall SetName(const char *pName)
{
Myfn(pName);
}
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Hi All,
Thanks for the reply.
How do I perform strcpy on two char* variables?
Thanks & Regards,
sanju.
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you simply have to assure that the destination buffer is large enough to hold the source.
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Hi,
Thanks for the reply.
That means i cannot simply use char* as destination in strcpy. I'll have to use char* s = new char[some value].
Thanks & Regards,
sanju.
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correct. or, if you know your strings will always be smaller than a certain size, you can use something like:
char buf[MAX_SIZE];
strncpy(buf, inputString, MAX_SIZE-1)
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Hi,
Thank you.
Thanks & Regards,
sanju.
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Hello,
I need a class which I can work with a huge floating point numbers and make an operations with them like *-/+
for example: 122354554654549878987.003253265465454597 * 65465465456654564.3212154654
I need something like this http://www.codeproject.com/cpp/largenumber.asp[^] but with floating point numbers.
Is there any class like I want?
SnaidiS(Semion)
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Why won't you use long double type?
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a little Googling turns up a few high-precision floating point libs for C++.
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it says it can handle numbers in the range: 2^16384 > x > 2^[-16383]
that's far greater than the numbers you gave in your post
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I have problems with the files.
I added the src folder to the project like that:
Tools->Options->Projects And Solutions->VC++ Directories-> and to included files and source files.
I'll show you here the most important code:
<br />
#include "stdafx.h"<br />
#include "num.h"<br />
#include "numDlg.h"<br />
#include "stdio.h"<br />
#include "xpre.h"<br />
<br />
<br />
BOOL CnumDlg::OnInitDialog()<br />
{<br />
CDialog::OnInitDialog();<br />
<br />
CnumDlg::play();<br />
<br />
<br />
return TRUE;
}<br />
<br />
<br />
void CnumDlg::play()<br />
{<br />
struct xpr s;<br />
int i,n;<br />
<br />
s=xZero;<br />
do<br />
{<br />
scanf("%d",&n);<br />
s=xZero;<br />
for(i=0;i<=n;i++)<br />
s=xadd(s,xpr2(xOne,i),0);<br />
xprxpr(s,30);<br />
putchar('\n');<br />
}while (n>0);<br />
}<br />
I earased the most of the code-just the important there.
After I'm running the program I have the following Errors:
1>numDlg.obj : error LNK2019: unresolved external symbol _xprxpr referenced in function "public: void __thiscall CnumDlg::play(void)" (?play@CnumDlg@@QAEXXZ)<br />
1>numDlg.obj : error LNK2019: unresolved external symbol _xadd referenced in function "public: void __thiscall CnumDlg::play(void)" (?play@CnumDlg@@QAEXXZ)<br />
1>numDlg.obj : error LNK2019: unresolved external symbol _xpr2 referenced in function "public: void __thiscall CnumDlg::play(void)" (?play@CnumDlg@@QAEXXZ)<br />
1>numDlg.obj : error LNK2001: unresolved external symbol _xOne<br />
1>numDlg.obj : error LNK2001: unresolved external symbol _xZero<br />
1>C:\Documents and Settings\Semion Naidis\My Documents\Visual Studio 2005\Projects\num\Debug\num.exe : fatal error LNK1120: 5 unresolved externals
How can I fix that?
SnaidiS(Semion)
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you'll need to either provide definitions for those functions, or remove the calls to them.
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I gave a definitions for those functions here:
<br />
#include "xpre.h"<br />
#pragma once<br />
<br />
<br />
class CnumDlg : public CDialog<br />
{<br />
public:<br />
CnumDlg(CWnd* pParent = NULL);
void CnumDlg::play();<br />
struct xpr xadd (struct xpr a, struct xpr b, int k);<br />
struct xpr xpr2 (struct xpr s, int n);<br />
void xprxpr (struct xpr u, int m);<br />
I have the almost the same problem...
1>numDlg.obj : error LNK2019: unresolved external symbol "public: void __thiscall CnumDlg::xprxpr(struct xpr,int)" (?xprxpr@CnumDlg@@QAEXUxpr@@H@Z) referenced in function "public: void __thiscall CnumDlg::play(void)" (?play@CnumDlg@@QAEXXZ)<br />
1>numDlg.obj : error LNK2019: unresolved external symbol "public: struct xpr __thiscall CnumDlg::xadd(struct xpr,struct xpr,int)" (?xadd@CnumDlg@@QAE?AUxpr@@U2@0H@Z) referenced in function "public: void __thiscall CnumDlg::play(void)" (?play@CnumDlg@@QAEXXZ)<br />
1>numDlg.obj : error LNK2019: unresolved external symbol "public: struct xpr __thiscall CnumDlg::xpr2(struct xpr,int)" (?xpr2@CnumDlg@@QAE?AUxpr@@U2@H@Z) referenced in function "public: void __thiscall CnumDlg::play(void)" (?play@CnumDlg@@QAEXXZ)<br />
1>numDlg.obj : error LNK2001: unresolved external symbol _xOne
And if I'm trying to define it the xZero and xOne too(extern const struct xpr xZero, xOne, xTwo, xTen;)
I have the following errors:<br />
1>c:\documents and settings\semion naidis\my documents\visual studio 2005\projects\num\num\numdlg.h(17) : error C2071: 'CnumDlg::xZero' : illegal storage class<br />
1>c:\documents and settings\semion naidis\my documents\visual studio 2005\projects\num\num\numdlg.h(17) : error C2071: 'CnumDlg::xOne' : illegal storage class<br />
1>c:\documents and settings\semion naidis\my documents\visual studio 2005\projects\num\num\numdlg.h(17) : error C2071: 'CnumDlg::xTwo' : illegal storage class<br />
1>c:\documents and settings\semion naidis\my documents\visual studio 2005\projects\num\num\numdlg.h(17) : error C2071: 'CnumDlg::xTen' : illegal storage class
What should I do?
SnaidiS(Semion)
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it's hard for me to say. i suggest you try to contact the authors of the class to see if they have any documentation that can help.
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