|
UNICODE issues?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>
|
|
|
|
|
try using wstring.
Christian
I have drunk the cool-aid and found it wan and bitter. - Chris Maunder
|
|
|
|
|
I am right now in the process of trying to make the computer search for a certain string. I am looking in text files, also I'm using console(don't ask) 
<marquee>Universal Project... Soon to be a .net
|
|
|
|
|
Read in all data from your file into a CString, and search for a pattern with CString::Find.
CString sString;
CFile file("c:\\pathtoyourfile.dat",CFile::modeRead);
file.Read(sString.GetBuffer(file.GetLength()),file.GetLength());
sString.ReleaseBuffer(file.GetLength());
sString.Find("Your pattern",0);
Take a look in MSDN at CFile, and CString.
Peter Molnar
|
|
|
|
|
Very well, but how can you do this in the console c++?
Old United Airlines Brochure:
If you cannot read this please ask a superintendent to help you...  LOL, for real!!!
|
|
|
|
|
Use a FILE structure in combination with 'fopen', 'fclose' and 'fread' functions. Read the entire file to a LARGE char array (say 'char myArray[8000]'). Then use stricmp function to compare the file with your match string.
Of course, if your file is larger, you should use the heap memory instead of stack. Just create a 'char* ptrArray = new char[80000]' and read it there. Remember to delete it when finished.
See Run-Time Library Reference for more details on file handling.
-Antti Keskinen
----------------------------------------------
The definition of impossible is strictly dependant
on what we think is possible.
|
|
|
|
|
Yes, I will allocate some memory since the file will be in constant change and allocation is a very good memory manager. 
Old United Airlines Brochure:
If you cannot read this please ask a superintendent to help you...  LOL, for real!!!
|
|
|
|
|
Create a console application with MFC support, and use the above code.
If you don't use MFC: The CString is part of the Win32 library in VS 7.0 and upwards, so you only have to change the file read in operation (see CreateFile,ReadFile Win32 functions).
Peter Molnar
|
|
|
|
|
Peter Molnar wrote:
The CString is part of the Win32 library in VS 7.0 and upwards
CString is still part of MFC/ATL, though you can use it by simply including atlstr.h.
Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke
|
|
|
|
|
const char* TextSearch(const char* pSearchStr, const char* pStr, int textLen)
{
if (!pSearchStr || !*pSearchStr)
return pStr;
if (!pStr || !*pStr)
return NULL;
if (textLen < 0)
textLen = (int)strlen(pStr);
int searchStrLen = (int)strlen(pSearchStr);
int pSkipTable[256];
int i;
for (i = 0; i < 256; i++)
pSkipTable[i] = searchStrLen;
for (i = 0; pSearchStr[i]; i++)
pSkipTable[(BYTE)pSearchStr[i]] = searchStrLen - 1 - i;
register int right = searchStrLen - 1;
while (right < textLen)
{
int j;
for (j = searchStrLen - 1, i = right; j >= 0 && pSearchStr[j] == pStr[i]; j--)
i--;
if (j == -1)
return &pStr[i + 1];
right = max(i + pSkipTable[(BYTE)pStr[i]], right + 1);
}
return NULL;
}
const char* TextSearchNoCase(const char* pSearchStr, const char* pStr, int textLen)
{
if (!pSearchStr || !*pSearchStr)
return pStr;
if (!pStr || !*pStr)
return NULL;
if (textLen < 0)
textLen = (int)strlen(pStr);
int searchStrLen = (int)strlen(pSearchStr);
int pSkipTable[256];
int i;
for (i = 0; i < 256; i++)
pSkipTable[i] = searchStrLen;
char* pSearchStrUpper = (char*) _alloca(searchStrLen);
memcpy(pSearchStrUpper, pSearchStr, searchStrLen);
CharUpperBuffA(pSearchStrUpper, searchStrLen);
char* pSearchStrLower = (char*) _alloca(searchStrLen);
memcpy(pSearchStrLower, pSearchStr, searchStrLen);
CharLowerBuffA(pSearchStrLower, searchStrLen);
for (i = 0; i < searchStrLen; i++)
{
pSkipTable[(BYTE)pSearchStrUpper[i]] =
pSkipTable[(BYTE)pSearchStrLower[i]] = searchStrLen - 1 - i;
}
register int right = searchStrLen - 1;
while (right < textLen)
{
int j;
for (j = searchStrLen - 1, i = right; j >= 0 &&
(pSearchStrLower[j] == pStr[i] || pSearchStrUpper[j] == pStr[i]); j--)
i--;
if (j == -1)
return &pStr[i + 1];
for (j = searchStrLen - 1; j >= 0; j--)
{
if (pSearchStrLower[j] == pStr[i] || pSearchStrUpper[j] == pStr[i])
{
right = max(i + pSkipTable[(BYTE)pStr[i]], right + 1);
break;
}
}
if (j < 0)
right = max(i + searchStrLen, right + 1);
}
return NULL;
}
Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke
|
|
|
|
|
I am getting this error when a specific class reaches the destructor in debug mode.
_CrtIsValidHeapPointer(pUserData)
The class is a template class, and the memory is allocated in the constructor of the class. There are no problems in Release mode, but I don't want to write the rest of this application without using the debugger. Is there a way of either turning this off, or convincing the computer that the memory actually exists in the heap?
If this is a common error, maybe some insight as to causes for receiving it would be great. Thanks a lot for any help!
I have never failed when programming. Instead I have succeeded in finding thousands of ways of crashing a computer!
Douglas A. Wright
dawrigh3@kent.edu
|
|
|
|
|
I'm currently working on a project,wherein i have to display the Tree structure of the directories as it is in (WINDOWS EXPLORER).Can anyone tell how to access the SHELL in Win32 Api(VC++) as im working in this platform.
NO MFC please..
|
|
|
|
|
|
Thanx for the link...but i'm working in plain win32 Api "NO MFC"...anyways thanx again for the help..if u find anything that has no MFC for displaying folders using SHELL in WIn32 please send me some reference..
|
|
|
|
|
MFC is nothing but a wrapper over the win32, so if you understand what that link is trying to say you can convert that logic into win32 calls in ur application.
but if you looking for spoon feeding anwers, then wait let me get my spoon.
The World is getting smaller and so are the people.
|
|
|
|
|
How can I get this icon into an application?
Is there any way I can use SHGetFileInfo() without knowing a head of time the name of any document in particular?
Thanks
The word of the day is legs, let's go back to my house and spread the word 
|
|
|
|
|
1.
The path to the file containing the HTML icon can be found in the default value of the foloowing registry key:
HKEY_CLASSES_ROOT\htmlfile\DefaultIcon
which usually "C:\Program Files\Internet Explorer\iexplore.exe,1", that is the first icon stored in the iexplore.exe. You can extract it from there.
2.
Take a screenshoot of windows explorer when it shows an HTML file, and add this bitmap to your project.
3.
Alternatively you can feed an CImageList with all the default icons, among others with the html default icon:
HIMAGELIST hSystemImageList;
SHFILEINFO ssfi;
hSystemImageList = (HIMAGELIST)SHGetFileInfo((LPCTSTR)_T("c:\\"),0,&ssfi,sizeof(SHFILEINFO),SHGFI_SYSICONINDEX | SHGFI_ICON);
m_ImageList.Attach(hSystemImageList);
pListCtrl->SetImageList(&m_ImageList,LVSIL_NORMAL);
And to find a path's index in the ImageList:
SHGetFileInfo((LPCTSTR)sPathToYourFile,0,&sfi,sizeof(SHFILEINFO),SHGFI_SYSICONINDEX | SHGFI_ICON );
pListCtrl->InsertItem(nInsertPos,sPathToYourFile,sfi.iIcon);
where sPathToYourFile should contain a valid path to an html file.
Peter Molnar
|
|
|
|
|
Peter Molnar wrote:
HKEY_CLASSES_ROOT\htmlfile\DefaultIcon
Cool, thats what I was looking for 
Thanks
The word of the day is legs, let's go back to my house and spread the word
|
|
|
|
|
Hi!
I want to duplicate an object previously instanced:
<br />
CMyClass* pMyVar1=new CMyClass ();<br />
pMyVar1->Var="Value";<br />
CMyClass* pMyVar2=new CMyClass ();<br />
CopyMemory (pMyVar2, pMyVar1, sizeof(pMyVar1));<br />
This code doesn't work, because I think that the sizeof is not correct.
Is there a way to copy an object with all his values?
Thks in advance!
Appstmd
http://www.appstmd.com
|
|
|
|
|
Something along the lines of
*pMyVar2 = *pMyVar1;
I just made a simple program that does the same thing and it works.
#include <iostream>
using namespace std;
class Class1
{
public:
int var1;
int var2;
};
int main()
{
Class1 * object1 = new Class1();
Class1 * object2 = new Class1();
object1->var1 = 1;
object1->var2 = 3;
object2->var1 = 2;
object2->var2 = 4;
cout << "Object1 Var1 = " << object1->var1 << endl;
cout << "Object1 Var2 = " << object1->var2 << endl;
cout << "Object2 Var1 = " << object2->var1 << endl;
cout << "Object2 Var2 = " << object2->var2 << endl << endl;
*object2 = *object1;
cout << "Object2 Var1 = " << object2->var1 << endl;
cout << "Object2 Var2 = " << object2->var2 << endl;
delete object1;
object1 = NULL;
delete object2;
object2 = NULL;
system( "pause" );
return 0;
}
object2 was switched in the output so I don't know why it wouldn't work for a more complicated class.
The question "Do computers think?" is the same as "Can submarines swim?"
DragonFire Software
Jeryth
|
|
|
|
|
In theory what you did "could" work but in practice it is breaking so many rules that you should never do it.
In your case, "*pMyVar2 = *pMyVar1" should work, however, that assumes that if a default assignment operator isn't defined, that the default one (of just copying the elements blindly) would work. Many times it will not for an assortment of reasons. In those cases, you have to define your own assignment operator to handle the operation properly.
IMHO, the default assignment operator is more trouble than it is worth. Many people will thwart the default assignment operator if you shouldn't be performing that operation on the class. If your class can be used with an assignment operator, go to the trouble of defining one.
Tim Smith
I'm going to patent thought. I have yet to see any prior art.
|
|
|
|
|
Very true, I hadn't thought of default = difficulties originally. If your class is just a bunch of int, double, etc the default = operator should work. But if you have char arrays, strings and other more complicated vars, definitely define your own = operator.
The question "Do computers think?" is the same as "Can submarines swim?"
DragonFire Software
Jeryth
|
|
|
|
|
Thks!
I've defined my own = operator for my class and it works now.
|
|
|
|
|
Hi All,
I have two DLLs. One is an MFC extension dll that is using MFC serialization with CArchive. Another one is a COM component. I am using MFC DLL from COM DLL in order to initialize some data. Data is supposed to be serialized. However, MFC serialization fails in MFC code when it tries to find a runtime class object in a list of its runtime classes. It cannot find one and returns NULL which then throws an exception. When I use MFC DLLs from another MFC application to do exactly the same thing (serialize data on the same class), everything works perfectly fine.
Should I do something else when I use MFC DLL from COM component? Please note, COM component has been created to support MFC.
I will appreciate any help on this subject.
Thank you All.
|
|
|
|
|
Hi,
I'm working on a chat program that uses TClientSocket & TServerSocket.
With these I guess the only way to send 'loose' information is with Socket->SendText and for FileTransfer use Socket->SendStream...?!
Now I've made a protocol, something like:
-Client opens connection to server<br />
-Server Acknowledges<br />
-Client sends login-request (LOGIN, USERID, USERPASSWORD, USERIP)<br />
-Server returns if user == ... etc
...okay, what is the best option to send this? With a String, a Buffer or...?! And IS this a good way to do this at all?! 
And then what is the best way to 'read' the protocol...
With switch() or with if's... or a better way?
Thx a million in advance,
Jeroen(NL) 
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
