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I want to use of your code freely? 
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char str[8];
cin >> str;
When run, if inputed string size more than eight byte, result run time error.
So, how to limit cin >> size or only get eight byte when inputed more than eight?
thanks!
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allocate memory dynamically based on the size of the string
You can use a loop (upto 8) along with getch()/getchar() to get the user input
Some things seem HARD to do, until we know how to do them.
 _AnShUmAn_
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cin statement doesn't provide you with limited input support. since it wait for RETRUN/ENTER key for updating the input character in buffer supplied to it.!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You/xml>
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std::cin.get(str, sizeof(str), '\n');
or
std::cin >> std::setw(sizeof(str)) >>str;
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hanlei0000000009 wrote: When run, if inputed string size more than eight byte, result run time error.
Were you expecting a different result? Why not use a string object instead?
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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Hi Experts,
How can I import .rtf or .doc file content into TextBox.
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Could anybody give reply?
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For import doc file use rich edit control instead of edit control.
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If you were using a rich edit control instead, you could just stream the data in.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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Hi,
How can i get the path of the file opened, if i know that window handle.Is there any API for this.
Thanks
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revanth1985 wrote: if i know that window handle
you can't find the name of file if you have window/FILE handle.
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You/xml>
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If you are asking how to get the filename of an executable by knowing a window handle then this is how you do it. This code will tell you the PID of the executable even if you pass a child handle such as a button handle.
#pragma comment(lib, "psapi")
DWORD dwPID = -1;
BOOL CALLBACK EnumChildWindowsProc(HWND hWnd, LPARAM lParam)
{
if(hWnd == (HWND)lParam)
{
GetWindowThreadProcessId(hWnd,&dwPID);
}
return TRUE;
}
BOOL CALLBACK EnumWindowsProc(HWND hWnd, LPARAM lParam)
{
if(hWnd == (HWND)lParam)
{
GetWindowThreadProcessId(hWnd,&dwPID);
}
else
{
EnumChildWindows(hWnd,EnumChildWindowsProc,lParam);
}
return TRUE;
}
BOOL FindWindowProcessModule(HWND Hwnd, TCHAR *szName,size_t iMaxLen)
{
EnumWindows(EnumWindowsProc,(LPARAM)Hwnd);
if(-1 != dwPID)
{
HMODULE hModule = NULL;
DWORD dwNeeded = NULL;
HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,FALSE,dwPID);
if (NULL != hProcess)
{
if(EnumProcessModules(hProcess,&hModule,sizeof(hModule),&dwNeeded))
{
GetModuleFileNameEx(hProcess,hModule,szName,iMaxLen);
}
else
{
GetProcessImageFileName(hProcess,szName,iMaxLen);
}
CloseHandle(hProcess);
}
}
return NULL != szName[0];
}
Here is how you would use it:
TCHAR szName[MAX_PATH] = {0};
HWND Hwnd = (HWND)::FindWindow(_T("SciCalc"),_T("Calculator"));
if(FindWindowProcessModule(Hwnd,szName,MAX_PATH))
{
MessageBox(szName);
}
else
{
MessageBox(_T("Calculator is not running."));
}
Best Wishes,
-David Delaune
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Hi,
Thanks for your reply.I don't want the path of the executable file,i want the working station of that file(for ex: D:\Work\New Text Document.txt).
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You want the name of the process which has the file opened?
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What i want is if a file is opened from D:\work\New Text Document.txt ,i want to get the path as stated before not the process name notepad.exe or excel.exe or some thing.can you help me out in this.
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You can use function _getcwd(char* buffer,int maxlen) which will give you current directory. I hope this is you are looking for.Following simple code shows you how to use it.
char* buff,buffer[255];
buff = _getcwd(NULL,0);
cout<<buff<<endl;
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SRKSHOME wrote: You can use function _getcwd(char* buffer,int maxlen) which will give you current directory.
How does that even come close to being a helpful answer? 
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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typedef LONG NTSTATUS;
#define NT_SUCCESS(Status) ((NTSTATUS)(Status) >= 0 && Status < 0x3FFFFFFF)
typedef struct _IO_STATUS_BLOCK {
union {
NTSTATUS Status;
PVOID Pointer;
};
ULONG_PTR Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
typedef struct _UNICODE_STRING
{
USHORT Length;
USHORT MaximumLength;
PWSTR Buffer;
} UNICODE_STRING, *PUNICODE_STRING;
typedef enum _FILE_INFORMATION_CLASS
{
FileNameInformation=9,
} FILE_INFORMATION_CLASS, *PFILE_INFORMATION_CLASS;
typedef struct _FILE_NAME_INFORMATION
{
ULONG FileNameLength;
WCHAR FileName[MAX_PATH];
} FILE_NAME_INFORMATION, *PFILE_NAME_INFORMATION;
NTSTATUS (NTAPI *NtQueryInformationFile)(HANDLE,PIO_STATUS_BLOCK,PVOID,LONG,FILE_INFORMATION_CLASS);
CString GetFileNameFromHandle(HANDLE hFile)
{
wchar_t wszFilename[MAX_PATH];
IO_STATUS_BLOCK stb;
FILE_NAME_INFORMATION str;
*(FARPROC*)&NtQueryInformationFile = GetProcAddress(GetModuleHandle(_T("ntdll.dll")),"NtQueryInformationFile");
DWORD Status=NtQueryInformationFile(hFile,&stb,&str,MAX_PATH,FileNameInformation);
return NT_SUCCESS(Status)?CString(str.FileName, str.FileNameLength / sizeof(WCHAR)):NULL;
}
Sample MFC usage:
CFile f;
f.Open(_T("C:\\Test.txt"),CFile::modeRead,0);
HANDLE hFile = f.m_hFile;
MessageBox(GetFileNameFromHandle(hFile));
f.Close();
Best Wishes,
-David Delaune
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#include <cstdlib>
#include <iostream>
//#include<conio>
//#include<math>
//#include<stdio>
#define NumberOfTasks 50 // easy change number of tasks
#define MaxClock 100 // easy change clock interval for tasks to run
#define MaxTaskTime 0.001 // easy change randomazing for tasking
#define NumerOfCPUs 5 // number of multiple pc's used
#define MaxQSize 10
using namespace std;
struct t
{
int id; int runprocess; int duration;
}task[NumberOfTasks];
struct c{
int idle;
int nextideltime;
}cpu[NumerOfCPUs];
struct queue{
// int Qcounter;
// int termcounter;
// int Qcounter==L;
// int empty
// { if (int L=0; Qcounter<maxqsize;l++)>
t task;
}q[MaxQSize];
int main(int argc, char *argv[])
{
int clock=0;
int qindex=0;
int i;
// cpus
for(int ik=0;ik<numerofcpus;ik++)>
{cpu[ik].idle=0;cpu[ik].nextideltime=0;}
// tasks
for(i=0;i<numberoftasks;i++)>
{
task[i].runprocess=int(MaxTaskTime*rand());
cout<<"task:"<< task[i].runprocess << "\n";
}
// system
while(clock<=MaxClock)
{
cout <<"clock:" << clock << endl;
for(int ij=0;ij<numberoftasks;ij++)>
{if(task[i].runprocess==clock)
{}
// if -- for enter the system
} // for -tasks
for(int ik=0;ik<numerofcpus;ik++)>
{if(cpu[ik].nextideltime==clock) cpu[ik].idle=0;
} // for make cpu idle
for(int ik=0;ik<numerofcpus;ik++)>
{if ( cpu[ik].idle==0 && qindex!=0)
{
}
} // for q - enter one task from q to cpu
clock++;
} //while
system("PAUSE");
return EXIT_SUCCESS;
}
here i am suppose to create a queuing and statistics box.. showing how many task get queue or terminated if queue is full... i just don't have any idea how to do that part..
help!!
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The code you've shown is full of syntax errors. Fix those, and make use of the <pre> tags to make it more readable.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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ok leave the code ...i was able to make a working one in C#
just help me in how to make counter which can count how many get queued.. and to make a counter that would count any thing over the queue limit...which would be terminated
an example or reference would be nice
don't mind C++ answer since i just need the idea.. its simple but i can't just grasp that part
thanks for replying
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thanks
i just got it... sooo simple...........  )))))) )))
good luck to others, sorry very busy with last sem exams, n major project stuffs or would have tried to help around a little
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Hi I am new VC++. Currently i am java application that will make use of COM(Component Object Model) to get Interface information. Basically I am using a IDispatch interface object to get a pointer to LTypeInfo. And I am using the function 'GetTypeInfo'. The problem is the function returns 'S_OK' but still pTypeInfo (pointer) is null. Can somebody help me out. In which scenario GetTypeInfo will return 'S_OK' but still the pointer will be null.
Following is the code snippet
===================================
ITypeInfo* pTypeInfo;
m_hRet = m_pDisp->GetTypeInfo(0,LOCALE_SYSTEM_DEFAULT,&pTypeInfo);
if(m_hRet!=S_OK || pTypeInfo==NULL)
{
#ifdef DISPDRIVER_DEBUG
_tprintf(_T("GetTypeInfo failed: %x\n"),m_hRet);
#endif
if(pTypeInfo==NULL && m_hRet==S_OK )
MessageBox(NULL, "Error : pTypeInfo is null", "1", MB_OK);
return false;
}
===================================
Please help me,since i am totally stuck at this point. Thanks In advance.
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I want to convert doc/txt file to PDF using C++ win32(Don't want any third party Library) console app.
Final o/p exe should be used as follows.
ConvertDocToPdf.exe source.doc tar.pdf
Thanks & Regards,
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