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jkirkerx wrote: int iNSN = wcslen(pzAddServerName)*sizeof(WCHAR);
szAddServerName = new WCHAR[iNSN+1];
should really be:
int iNSN = wcslen(pzAddServerName);
szAddServerName = new WCHAR[iNSN+1];
the 'new' operator knows the size of the type and will allocate the correct number of bytes for iNSN +1 WCHARs, behind the scenes.
jkirkerx wrote: wcsncat_s(szNewServerNames, wcslen(szNewServerNames), szAddServerName, wcslen(szAddServerName) );
then one of your wcslen_t's will cause an access violation, since wcslen is looking for the null terminator.
if one of your strings is not null-terminated, then you must know the max length allowed for it. you can use that for your length to wcnscat_s
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That's right, it's the max size,
int iASN = wcslen(pzEnumeratedServerNames)+wcslen(szAddServerName)+1;
szNewServerNames = new WCHAR[iASN];
wcsncpy_s(szNewServerNames, iASN, pzEnumeratedServerNames, wcslen(pzEnumeratedServerNames) );
// Cat the new value to the new buffer if not already present
if (pzMatch == NULL) {
// one of these is not null terminated
wcsncat_s(szNewServerNames, iASN, szAddServerName, wcslen(szAddServerName) );
}
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Hello Experts,
Is there any way to find out Network Utilization?
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What do you mean by Network Utilization?
Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman
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Hi,
Have a look at this older post:
How to get the network adapter connection speed using IP Helper Library.[^]
Using the code snippet above you could get the maximum speed available. (Always read the MSDN article! If you want to support gigabit speeds... you will need to modify my code to use the MIB_IF_ROW2 structure[^])
If you wanted to know what percentage of the available network capacity is being currently utilized... just modify the code sample above and obtain the:
MIB_IFROW[^].dwInOctets for incoming
MIB_IFROW[^].dwOutOctets for outgoing
1.) Save these values...
2.) Wait 1 second. (Or wait a smaller amount such as 250 milliseconds)
3.) Read the values again... and subtract current value from last value. (if you waited a short amount of time such as 250 milliseconds then multiply by 4 to estimate 1000 milliseconds)
Actually the MIB_IF_ROW2 structure[^] looks like a better candidate... it uses unsigned 64 bit integers for the counters. So I suggest that you update the function to use that instead.
Also... If you look closely at the link I gave you above... David Crow and mikey_eff[^] also shows how to get these same values using PDH (Performance Counters). So you have two choices.
I often have people ask me why I always choose the lower level functions... and PDH is a perfect example. Users have the ability to disable performance counters. So if you write an application that reads cpu/network statistics using Performance Counters... and a user named Bob disabled his performance counters... then your application will fail on Bob's computer. Microsoft Windows is somewhat like an Onion[^] and the PDH network counters are actually reading the same values accessed by the IP Helper[^] library that are tracked by the NT modular kernel. The Performance Data Helper is continually reading all these values and stores them in the registry...
Anyway it looks like I am rambling again, hope it makes sense. I better get back to eating pumpkin pie.
Best Wishes,
-David Delaune
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hello everyone..
i searched Google but still cant find a sample code for my needs
i need a sample code for counting key-press
im going to use this code to detect a human or macro key-press
human key-press should have a millisecond delay,while a lot of macro programs dont have a delay,some sort of anti key-press spam.
c++ would be nice
sorry for my bad english
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You cannot reach the 1 millisecond resolution on Windows (at least in user code).
Sorry, I misunderstood your requirements. 
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
modified 24-Dec-11 10:44am.
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CPallini wrote: You cannot reach the 1 millisecond resolution on Windows (at least in user code).
Of course you can. You won't get it in each and every way you could try, however there are ways to get pretty good timing resolution and accuracy (could be close to the microsecond). Here are two of them:
- multimedia timers, with timeSetEvent() from winMM.dll;
- performance counters, with QueryPerformanceCounter() from kernel32.dll
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You cannot process key state with a sampling period of 1 msec.
Ok, it looks I need more coffee...
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
modified 24-Dec-11 10:45am.
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the OP isn't going to sample key states, he asked for sample code. He could attach a keyboard hook and note the time, with better than millisecond resolution, and then, when text comes in too fast to his liking, decide it is a bot rather than a human entrant.
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OK, I see, you are right.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Have you considered SetWindowsHookEx() with WH_KEYBOARD?
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Show me a community that obeys the Ten Commandments and I'll show you a less crowded prison system." - Anonymous
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Use SetWindowsHookEx with WM_KEYBOARD_LL
if bit LLKHF_INJECTED in KBDLLHOOKSTRUCT.flags is set,then this key press is injected by SendInput function.
if the key press is simulated by posting WM_KEYDOWN directly,the hook procedure wont be called at all
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Ok, the timing is not well..... just press the keys down rapidly to get a good time measure. 
#include <windows.h>
#include <iostream>
#include <time.h>
#include <cmath>
using namespace std;
int main(int argc, char *argv[])
{
HANDLE hInput = GetStdHandle(STD_INPUT_HANDLE);
INPUT_RECORD ir;
DWORD dwRead = 0;
bool bLoop = true;
clock_t timer_start, timer_stop;
int Number_of_Keypresses=0;
ZeroMemory(&ir,sizeof(INPUT_RECORD));
timer_start = clock ();
timer_stop = clock ();
while(bLoop)
{
if( ReadConsoleInput( hInput,&ir,1,&dwRead) )
{
if(ir.EventType == KEY_EVENT )
{
if(ir.Event.KeyEvent.bKeyDown )
{
timer_start = clock ();
Number_of_Keypresses++;
switch(ir.Event.KeyEvent.wVirtualKeyCode)
{
case VK_DOWN:
cout << "DOWN" << endl;
break;
case VK_UP:
cout << "UP" << endl;
break;
case VK_RIGHT:
cout << "RIGHT" << endl;
break;
case VK_LEFT:
cout << "LEFT" << endl;
break;
case VK_ESCAPE:
bLoop = false;
default:
break;
}
}
else
{
timer_stop = clock ();timer_start = clock ();
}
cout <<"Number_of_Keypresses = "<< Number_of_Keypresses<<"\n";
cout <<"Millisecond delay = "<<abs(timer_start - timer_stop ) <<" (from KEY_EVENT_keydown to KEY_EVENT_KeyUp)" << endl;
cout <<"______________________________________________________\n";
}
}
}
return 0;
}
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In Visual Studio 2010 C++ the function GetSchemaObject() returns -1 and not the schema number set wit the IMPLEMENT_SERIAL macro. The prototype of the function returns UINT and in pratice -1 is returned ? How can I solve this problem ?
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I Think you GetSchemaObject() get failed. You better look at the documentation how to retrieve the error information may be it will give you a way out.
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Hello Friends
I am writing a XMl file using MSXML.
Some of nodes are having child.When I am rewriting the same node then first I am deleting the node And All its child one by one like this :
void fnDeleteChildNode(MSXML::IXMLDOMNodePtr pMainNode)
{
MSXML::IXMLDOMNodePtr pChild,pDeletedNodePtr;
MSXML::IXMLDOMNodeListPtr pChildList = pMainNode->GetchildNodes();
int noOfChild = pChildList->Getlength();
if(noOfChild > 0)
{
for(pChild = pMainNode->firstChild; pChild != NULL; pChild = pDeletedNodePtr)
{
pDeletedNodePtr = pChild->nextSibling;
pMainNode->removeChild(pMainNode->firstChild);
}
}
}
But I dont want to delete its child one by one.I want to know is there any fn tht will directly delete all of its child ?
Thanks In Advance.
Regards
Yogesh
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I guess that replaceChild of current node's parent should be enough.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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yogeshs wrote: I am rewriting the same node then first I am deleting the node
Not sure what you think "rewriting" means but other than that.
If you have a node X, and you want to delete it, then you do the following
1. Get the parent of X
2. Delete X from the parent.
In the above it does not matter whether X has children or not. When you delete X then its children, if any, will be deleted too.
There is no delete all, but if you are recreating X then it is pointless to worry about the children because when you replace X, if you actually replace it (not modify the existing one) then all of the children of X would be gone.
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Hi all,
I have made a linked list using CList class. Inside parameters of CList i have passed structure which has value of CString and int aray type.
If i want to find a item in that list using find function, how can i do it?
struct Person
{
int ID;
CString Name;
int age;
int phno[20];
};
CList<Person *, Person *> person_struct;
void function_add()
{
Person *obj_Per;
obj_Per->ID = 0;
obj_Per->Name = "Bilbo Baggins";
obj_Per->age = "35";
for(int i = 0; i<20; i++)
{
obj_Per->phno[i] = i;
}
person_struct.AddTail(obj_Per);
obj_Per->ID = 1;
obj_Per->Name = "Fredo Frog";
obj_Per->age = "40";
for(int i = 0; i<20; i++)
{
obj_Per->phno[i] = i;
}
person_struct.AddTail(obj_Per);
}
If i want to find item with particular ID then how can i do this??
Thanks in advance
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See the Remarks section here[^].
Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman
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VCProgrammer wrote: obj_Per->age = "35";
Isn't the age member an int?
VCProgrammer wrote: If i want to find item with particular ID then how can i do this??
At this point, I'd be more concerned with adding an item properly. obj_Per has not been initialized (for each item).
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Show me a community that obeys the Ten Commandments and I'll show you a less crowded prison system." - Anonymous
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Well spotted, I failed to notice that.
Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman
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you can use GetAt function Gets the element at a given position.
please look for the MSDN CList member function
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