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Use ShellExecute() or ShellExecuteEx().
"You're obviously a superstar." - Christian Graus about me - 12 Feb '03
"Obviously ??? You're definitely a superstar!!!" mYkel - 21 Jun '04
Within you lies the power for good - Use it!
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Hey can anyone help me out with video compression? i have tried to look into virtual dub's code but i didnt get anything.
Saba
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Hi ....
In my application I build functions that convert Arabic text to UCS2 coding this function will take it parameter from DB nvarchar field as follow:
*****************************************
CString CTryNewDlg::ToUCS2(CString txt)
{
USES_CONVERSION;
int xlen = txt.GetLength();
wchar_t *wsz = T2W(txt);
CString c,cc,x;
cc="";
int j=0,i=0;
for (i=j; i
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Hi again ....
i found VB function to do what i want as follow:
************************************************
Public Function UCS2Str(strtext As String) As String
Dim s As String, h As String, i As Integer
i = 1
s = ""
While i < Len(strtext)
h = Mid(strtext, i, 4)
i = i + 4
h = CLng("&H" & h)
h = ChrW(h)
s = s & h
Wend
Hex2Str = s
End Function
************************************************
for CLng i used atol
but for CHrW i do not know what i should use i tried different convertion but i am only gettin strang char
(ex 0634 i should get ش )
plz any hint ...
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Maybe someone can help me on this: I'm creating a MFC custom control which is a combination of a CEdit and a CSpinButtonCtrl. The control is created solely by code, i.e. no resource editor.
The problem is that the edit control paints itself incorrectly. Let me explain:
1.) Directly after showing the dialog with the custom controls it looks this way (the control in question is the control labeled "Breite der Bilder"):
<a href="http://www.magerquark.de/data/misc/mfc-cedit-01.png">Screenshot 1</a> [<a target=_blank title='New Window' href="http://www.magerquark.de/data/misc/mfc-cedit-01.png">^</a>] As you can see, the border around the CEdit is missing and the text ("640") is hanging on the upper left border.
2.) If I move the mouse over the control it looks this way:
<a href="http://www.magerquark.de/data/misc/mfc-cedit-02.png">Screenshot 2</a> [<a href="http://www.magerquark.de/data/misc/mfc-cedit-02.png" target="_blank" title="New Window">^</a>] I.e. now it paints the border but the text is still in the upper left corner, now partially hidden by the border.
3.) The control resizes when the user sizes the dialog. Now when the size was change, suddenly it looks correct, as in this screenshot:
<a href="http://www.magerquark.de/data/misc/mfc-cedit-03.png">Screenshot 3</a> [<a href="http://www.magerquark.de/data/misc/mfc-cedit-03.png" target="_blank" title="New Window">^</a>] As you can see, now the "640" has 'snapped down' to the correct position (in contrast to the control labeled "Breite der Vorschaubilder", which doesn't scale). Also, the CEdit border now is always visible.
So something must happen upon scaling. I already examined the styles of the CEdit before and after scaling with Spy++ and also compared with CEdit controls created with the resource editor. The styles are always the same, so these are not the cause of the display-error.
Question: Can someone enlighten me about why this display-error occures an how I can get rid of it?
Thank you
Uwe
--
Affordable Windows-based CMS: www.zeta-producer.com
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I do not know why the error occurs, but I have seen some controls appear one way and then readjust as if they have received a second invalidate rectangle command (or a resize command).
It occurs to me that when Chris Maunder designed the MFC grid control 2.25, he may have ran into that problem. So it might be worth looking at.
Good Luck!
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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I assume that the edit control is not a direct child of the dialog - it's a child of an intermediate container control. Can you tell if there are any messages (WM_NCPAINT comes to mind) that are being blocked by the container on initialisation, but are allowed to pass to the edit control later on.
Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"
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I've seen something similar before... I forget exactly what I was doing, but a call to
control.SetWindowPos ( NULL, 0, 0, 0, 0,
SWP_NOMOVE|SWP_NOSIZE|SWP_NOZORDER|SWP_FRAMECHANGED );made the control redraw properly. (The SWP_FRAMECHANGED flag is the important part)
--Mike--
LINKS~! Ericahist | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ | You Are Dumb
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Tried that and some other methods, unfortunately without succeess. I already thought that the CEdit thinks it is "maximized" (without border) and when sizing it gets "restored" (with border).
I now examined with Spy++ and logged all messages that appear right before and right after the sizing.
These are the messages:
<a href="http://www.magerquark.de/data/misc/spy.png">Screenshot</a> [<a href="http://www.magerquark.de/data/misc/spy.png" target="_blank" title="New Window">^</a>] I now start investigating, maybe someone already has an idea which message causes the correct repaint.
--
Affordable Windows-based CMS: www.zeta-producer.com
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What finally helped me is the following solution:
CRect rect;
control.GetWindowRect( rect );
control.GetParent()->ScreenToClient( rect );
control.ModifyStyleEx( WS_EX_CLIENTEDGE, 0 );
control.ModifyStyleEx( 0, WS_EX_CLIENTEDGE );
VERIFY(control.SetWindowPos(
NULL,
rect.left,
rect.top,
rect.Width(),
rect.Height(),
SWP_FRAMECHANGED ));I've tested under Windows XP so far only, I will see whether it works on other systems, too.
--
Affordable Windows-based CMS: www.zeta-producer.com
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I am currently trying to add variable names to radio buttons and combo boxes. Once I add a variable name to the radio buttons, my program no longer runs properly, if at all.
Please help!!
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Changing names on buttons is a simple matter (SetWindowText). So there must be more to this problem. Are you running the debug version with a memory validator turned on (that would help a little). There is also the possibility that the cause occured because of an error in your code that happen before you changed the name, but that usualy results in a runtime error.
Insuffient information!
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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what is the error you are getting when you compile the project ?
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I am not getting an error message. That is the weird thing. My dialog window just doesn't pop up when I hit run. My program runs fine until I right click on the button and go to add variable. These are the lines that are making it mess up, because if i comment them out, it runs fine again:
This is declared in my .h file:
CButton m_remOff;
This is generated in the dodataexchange function:
DDX_Control(pDX, IDC_RADIO_REMOFF, m_remOff);
Also if I make a line like m_remOff.setCheck(true) that causes problems.
Is there another line of code that should be generated automatically somewhere else? I am using .net 2003.
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I'm not an advanced programmer, but I thought having SOME reply is better than nothing...
I get your behavior sometimes and often it's because the number/label of your ID (ID_RADIO_REMOFF) is not in sync with other parts of the code (dialog designer), so ensure that all these references match.
Also, I believe that the DDX stuff is for moving data between a control and a simple data variable (e.g., int, CString, etc.), so it seems odd to me that there needs to be an exchange of data between your dialog control and your local variable that points to that control.
thanks,
JennyP
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First of all, I want to thanks that you spend your time to read my problem.
I have three classes in my program. Student is the base class. Graduate is derivated from Student class. studentDB is a class that includes both Student and Graduate class.
I use a STL container to save the data which could be Student or Graduate .
When I save data to an outfile, I got a problem. Visual C++ shows me a message below.
'show_thesis_topic' : is not the member of 'student'.
I know I can fix the problem if I create a Graduate class instead of Student class.
But I just want to know have any idea that I can also use to fix the problem.
Thanks your help. Bless you.
//Student.h
#ifndef __STUDENT
#define __STUDENT
class student //I define regular a student information here.
{
public:
void set_lastname(std::string );
void set_firstname(std::string );
void set_ssn(std::string );
void set_age(int);
void set_phone(std::string );
std::string show_lastname();
std::string show_firstname();
std::string show_ssn();
int show_age();
std::string show_phone();
std::string show_type_of_student();
void set_type_of_student(std::string);
virtual void display();
private:
std::string lastname;
std::string firstname;
std::string ssn;
int age;
std::string phone;
std::string type_of_student;
};
#endif
//student.cpp
#include <iostream>
#include <string>
#include <iomanip>
#include "student.h"
using namespace std;
//--------------------------------------------------------------------------------
// The following functions declare for the class of student.
//--------------------------------------------------------------------------------
void student::display() //the function will printout the student information out to screen.
{
cout << "\tStudent Data:\n";
cout << "\t\tSSN: " << ssn << endl;
cout << "\t\tLast Name: " << lastname << endl;
cout << "\t\tFirst Name: " << firstname << endl;
cout << "\t\tPhone Number: " << phone << endl;
cout << "\t\tAge: " << age << endl;
}
std::string student::show_lastname()
{
return lastname;
}
std::string student::show_firstname()
{
return firstname;
}
std::string student::show_ssn()
{
return ssn;
}
int student::show_age()
{
return age;
}
std::string student::show_phone()
{
return phone;
}
std::string student::show_type_of_student()
{
return type_of_student;
}
void student::set_lastname(std::string text)
{
lastname=text;
}
void student::set_firstname(std::string text)
{
firstname=text;
}
void student::set_ssn(std::string text)
{
ssn=text;
}
void student::set_age(int number)
{
age=number;
}
void student::set_phone(std::string text)
{
phone=text;
}
void student::set_type_of_student(string text)
{
type_of_student=text;
}
//Graduate.h
#include "student.h"
#ifndef __GRADUATE
#define __GRADUATE
class Graduate: public student // I define extra information for a graudate student
{
public:
std::string show_thesis_topic();
void set_thesis_topic(std::string);
std::string show_adviser();
void set_adviser(std::string);
void display();
private:
std::string thesis_topic;
std::string adviser;
};
#endif
//Graduate.cpp
#include <iostream>
#include <string>
#include <iomanip>
#include "Graduate.h"
using namespace std;
void Graduate::display()
{
cout << "\tGraduate Data:\n";
cout << "\t\tSSN: " << student::show_ssn() << endl;
cout << "\t\tLast Name: " << student::show_lastname() << endl;
cout << "\t\tFirst Name: " << student::show_firstname() << endl;
cout << "\t\tPhone Number: " << student::show_phone() << endl;
cout << "\t\tAge: " << student::show_age() << endl;
cout << "\t\tThesis: " << thesis_topic << endl;
cout << "\t\tAdvisor: " << adviser << endl;
}
void Graduate::set_adviser(string text)
{
adviser=text;
}
void Graduate::set_thesis_topic(string text)
{
thesis_topic=text;
}
string Graduate::show_adviser()
{
return adviser;
}
string Graduate::show_thesis_topic()
{
return thesis_topic;
}
//StudentDB.h
#include "student.h"
#include "Graduate.h"
#include <list>
#ifndef __STUDENTDB
#define __STUDENTDB
class student_db
{
public:
// add a regular student to the database – return true if successful, false otherwise
bool add_Student(std::string , std::string , std::string , int , std::string);
// add a graduate student to the database – return true if successful, false otherwise
bool add_Graduate(std::string , std::string , std::string , int , std::string , std::string , std::string );
// delete student with a particular social security number – return true if successful
// and false otherwise
bool delete_Student(std::string);
// display the data for student if present in the database – otherwise error message
void display_Student(std::string);
// display data for ALL the student in the database
void display_all();
// read data from disk - return true if data exist, false otherwise.
bool read_data(std::string,std::string);
// The function will write out a table of students.
void write_result();
// The function will return a value that showing how many records in database.
int how_many_record();
student_db();
~student_db();
private:
// The function will return true if find student in list, false otherwise
bool searchSSN(std::string);
std::ifstream Openfile;
std::ofstream Savefile;
std::string input_filename; //input_filename record the inputfile name.
std::string output_filename; //output_filename record the outfilename;
int how_many_data;
std::list<student *> database;
};
#endif
//StudentDB.cpp
#include <iostream>
#include <string>
#include <list>
#include <fstream>
#include <iomanip>
#include "studentDB.h"
using namespace std;
// The function will return a value that showing how many records in database.
int student_db::how_many_record()
{
return how_many_data;
}
// add a regular student to the database – return true if successful, false otherwise
bool student_db::add_Student(string ssn, string lastname, string firstname, int age, string phone)
{
if(!searchSSN(ssn)) //if the SSN cann't find in the array, saving a new record to the array.
{
student *temp_student=new student();
temp_student->set_type_of_student("Student");
temp_student->set_ssn(ssn);
temp_student->set_lastname(lastname);
temp_student->set_firstname(firstname);
temp_student->set_age(age);
temp_student->set_phone(phone);
database.push_front(temp_student);
return true;
}
else
return false;
}
// add a graduate student to the database – return true if successful, false otherwise
bool student_db::add_Graduate (string ss, string last, string first, int age, string ph, string th, string ad)
{
if(!searchSSN(ss)) //if the SSN cann't find in the array, saving a new record to the array.
{
Graduate *temp_student=new Graduate();
temp_student->set_type_of_student("Graduate");
temp_student->set_ssn(ss);
temp_student->set_lastname(last);
temp_student->set_firstname(first);
temp_student->set_age(age);
temp_student->set_phone(ph);
temp_student->set_adviser(ad);
temp_student->set_thesis_topic(th);
database.push_front(temp_student);
return true;
}
else
return false;
}
// delete student with a particular social security number – return true if successful
// and false otherwise
bool student_db::delete_Student(string ssn)
{
bool is_found=false;
list<student *>::iterator database_list;
database_list=database.begin();
if(searchSSN(ssn))
{
while (!is_found && database_list != database.end())
{
if ((*database_list)->show_ssn()==ssn)
is_found = true;
else
database_list++;
}
}
if(is_found) //if the index number is not -1, the program will start remove a record.
{
delete *database_list; // return storage for the car to heap
database.erase(database_list);
return true;
}
else
return false;
}
// display the data for student if present in the database – otherwise error message
void student_db::display_Student(string ssn)
{
if(searchSSN(ssn))
{
bool is_found=false;
list<student *>::iterator database_list;
database_list=database.begin();
while (!is_found && database_list != database.end())
{
if ((*database_list)->show_ssn()==ssn)
is_found = true;
else
database_list++;
}
if(is_found)
{
(*database_list)->display();
}
}
else
cout << "Student with ssn: " << ssn << " NOT found\n";
}
// display data for ALL the student in the database (using dynamic binding)
void student_db::display_all()
{
list<student *>::iterator database_list;
database_list=database.begin();
{
while(database_list!=database.end())
{
if((*database_list)->show_type_of_student()!="Graduate")
cout << setw(10) << (*database_list)->show_lastname() << setw(10) << (*database_list)->show_firstname() << setw(16) << (*database_list)->show_ssn() << setw(18) << (*database_list)->show_phone() << setw(7) << (*database_list)->show_age() << endl;
else
//-----------------------------------------------------------------
// This is the place where I got the problem.
//
//-----------------------------------------------------------------
cout << setw(10) << (*database_list)->show_lastname() << setw(10) << (*database_list)->show_firstname() << setw(16) << (*database_list)->show_ssn() << setw(18) << (*database_list)->show_phone() << setw(7) << (*database_list)->show_age() << setw(7) << (*database_list)->show_thesis_topic << setw(7) << (*database_list)->show_advise() << endl;
database_list++;
}
}
cout << endl;
}
student_db::student_db()
{
how_many_data=0;
}
student_db::~student_db()
{
Savefile.close();
Openfile.close();
}
// The function will write out a table of students
void student_db::write_result()
{
/*
list<student *>::iterator database_list;
database_list=database.begin();
{
while(database_list!=database.end())
{
if((*database_list)->show_type_of_student!="Graduate")
Savefile << setw(10) << (*database_list)->show_lastname() << setw(10) << (*database_list)->show_firstname() << setw(16) << (*database_list)->show_ssn() << setw(18) << (*database_list)->show_phone() << setw(7) << (*database_list)->show_age() << endl;
else
Savefile << setw(10) << (*database_list)->show_lastname() << setw(10) << (*database_list)->show_firstname() << setw(16) << (*database_list)->show_ssn() << setw(18) << (*database_list)->show_phone() << setw(7) << (*database_list)->show_age() << setw(7) << (*database_list)->show_thesis_topic() << setw(7) << (*database_list)->show_advise() << endl;
database_list++;
}
}
Savefile << endl;
*/
}
// The function will return true if find student in list, false otherwise
bool student_db::searchSSN(string ssn)
{
bool is_found=false;
list<student *>::iterator database_list;
database_list=database.begin();
while (!is_found && database_list != database.end())
{
if ((*database_list)->show_ssn()==ssn)
is_found = true;
else
database_list++;
}
return is_found;
}
// read data from disk - return true if data exist, false otherwise.
bool student_db::read_data(string in_filename, string out_filename)
{
Openfile.open(in_filename.c_str());
if(Openfile==NULL) //IF FILE DOES NOT EXIST, finish the function.
{
return false;
}
else // executing this scope if the file exist
{
Savefile.open(out_filename.c_str());
input_filename=in_filename; //recording a name of the inputfile to filename[0]
output_filename=out_filename; //recording a name of the outputfile to filename[1]
string temp_use; //the variable will save a string that read from inputfile for temp.
int temp_int_use; //the variable will save a integer that read from inputfile for temp.
while(!Openfile.eof()) //leaving for loop if there is nothing in the file.
{
Openfile >> temp_use;
if(Openfile==NULL)
break;
if(temp_use!="Graduate") //if the data that reads from the input file is belong Graduate, creating a graduate object, otherwise a student object.
{
student *temp_student=new student(); //creating a new student class to save each record that read from an input file.
temp_student->set_type_of_student(temp_use);
Openfile >> temp_use;
temp_student->set_lastname(temp_use);
Openfile >> temp_use;
temp_student->set_firstname(temp_use);
Openfile >> temp_use;
temp_student->set_ssn(temp_use);
Openfile >> temp_use;
temp_student->set_phone(temp_use);
Openfile >> temp_int_use;
temp_student->set_age(temp_int_use);
database.push_front(temp_student);
how_many_data++;
}
else
{
Graduate *temp_student=new Graduate(); //creating a new student class to save each record that read from an input file.
temp_student->set_type_of_student(temp_use);
Openfile >> temp_use;
temp_student->set_lastname(temp_use);
Openfile >> temp_use;
temp_student->set_firstname(temp_use);
Openfile >> temp_use;
temp_student->set_ssn(temp_use);
Openfile >> temp_use;
temp_student->set_phone(temp_use);
Openfile >> temp_int_use;
temp_student->set_age(temp_int_use);
Openfile >> temp_use;
temp_student->set_thesis_topic(temp_use);
Openfile >> temp_use;
temp_student->set_adviser(temp_use);
database.push_front(temp_student);
how_many_data++;
}
}
return true;
}
}
//Main program
#include <iostream>
#include <fstream>
#include <string>
#include "studentDB.h"
using namespace std;
int main()
{
cout << "\tSTUDENT DATABASE PROGRAM\n";
string filename[2]; //declare an array to save a input filename and a output filename;
cout << "\tEnter input file name: ";
cin >> filename[0];
cout << "\tEnter output file name: ";
cin >> filename[1];
student_db database;
if(database.read_data(filename[0],filename[1]))
{
cout << "\tData for " << database.how_many_record() << " students was read into the database…\n";
bool should_I_leave=false;
char command; //The variable will save the command that user choose.
string temp_info[6];
int temp_age;
while(!should_I_leave) //When user type Q or q will leave loop.
{
cout << "Enter command (A -> add, R -> remove, D -> display, S -> show all, Q -> quit): ";
cin >> command;
switch (command)
{
case 'A': case 'a':
cout << "\t\tWhat type of Student (r/R regular; g/G graduate): "; // If the user chooses r, the program will call add_Student function. If the user chooses g, the program will call add_Graduate function.
cin >> command;
switch (command)
{
case 'R': case 'r':
cout << "\t\t\tEnter social security number: ";
cin >> temp_info[0];
cout << "\t\t\tEnter last name: ";
cin >> temp_info[1];
cout << "\t\t\tEnter first name: ";
cin >> temp_info[2];
cout << "\t\t\tEnter age: ";
cin >> temp_age;
cout << "\t\t\tEnter phone: ";
cin >> temp_info[3];
if(database.add_Student(temp_info[0],temp_info[1],temp_info[2],temp_age,temp_info[3]))
cout << "\t\tStudent added!\n";
else
cout << "\t\tStudent with ssn: " << temp_info[0] << " already exist!\n";
break;
case 'G': case 'g':
cout << "\t\t\tEnter social security number: ";
cin >> temp_info[0];
cout << "\t\t\tEnter last name: ";
cin >> temp_info[1];
cout << "\t\t\tEnter first name: ";
cin >> temp_info[2];
cout << "\t\t\tEnter age: ";
cin >> temp_age;
cout << "\t\t\tEnter phone: ";
cin >> temp_info[3];
cout << "\t\t\tEnter thesis: ";
cin >> temp_info[4];
cout << "\t\t\tEnter advisor: ";
cin >> temp_info[5];
if(database.add_Graduate(temp_info[0],temp_info[1],temp_info[2],temp_age,temp_info[3],temp_info[4],temp_info[5]))
cout << "\t\tStudent added!\n";
else
cout << "\t\tStudent with ssn: " << temp_info[0] << " already exist!\n";
break;
}
break;
case 'D': case 'd':
cout << "\tEnter ssn of student to display: ";
cin >> temp_info[0];
database.display_Student(temp_info[0]);
break;
case 'R': case 'r':
cout << "\tEnter ssn of student to delete: ";
cin >> temp_info[0];
if(database.delete_Student(temp_info[0]))
cout << "\t\tStudent deleted!\n";
else
cout << "Student with ssn: " << temp_info[0] << " NOT found!\n";
break;
case 'S': case 's':
database.display_all();
break;
case 'Q': case 'q':
cout <<"Leaving the main loop\n";
cout <<"\tWritten output to " << filename[1] << endl;
database.write_result();
should_I_leave=true;
break;
}
}
}
else
{
cout << "the name of the file does not exist\n";
}
cout << "Exiting database Program…\n";
return 0;
}
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Before trying to output data related to a Graduate you need to first try to convert the base student pointer (in list) to a Graduate pointer. You do that by trying to cast it using dynamic_cast, if it fails it is not a Graduate.
// output data common to all students
...
// try to cast student pointer to Graduate pointer
Graduate* pG = dynamic_cast<graduate*>(pStudent);
if( pG ) // if Graduate
{
// output data of graduate students
cout<<pg->show_thesis_topic();
}
// finish up
...
I beleive that is what you are looking for.
P.S. You did not need to post evey thing, only enough to show the problem.
(Pesonaly I ignored the rest).
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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i never got to understand the way you can hook a window function like CopyFileA or RegSetValueW for exmple. can someone explain it to me or give me some good site where I can read more about this. I would be veru greatful. I want to know how to it without drivers for now.
Thank you
gabby
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If there is away to hook a function, I have never heard of it. I can think of a few ways this might be accomplished, but it would take a lot of reaserch (and the system security should object to that level of interference).
Hooks are away of intercepting messages being sent from one place to anouther. You can redirect the messages, stop them from being proccessed or allow them to be pass on to there inteneded target.
What you probaly are looking for is articles on hooking in windows. There are several articles at CP and probably at CodeGuru.com. There is also a number of articles on drawing menues and etc... that use hooks to redirect messages to there own drawing code.
I hope that helps!
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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On Windows XP and others it is possible to sign on without a user name or password. Is the default user name always default or can it contain another value?
Thanks
"Naked we come and bruised we go."
- James Douglas Morrison
Best Wishes,
ez_way
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BaldwinMartin wrote:
On Windows XP and others it is possible to sign on without a user name or password.
Not if the adiminstrator has set it up to disallow it.
BaldwinMartin wrote:
Is the default user name always default or can it contain another value?
No and Yes! It is up to the administrator.
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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I have this problem, im used to doing winsock program in vb, when i create multiple connection in vb, i just create an array of it, i tried doing this in c++/win32api the problem is, when a connection connected to certain
socket[index] closes i have no idea which socket it is. coz i have no idea how to retreive the index of the socket that got the disconnection. does anyone know a way to know which socket got the disconnection?
I have no idea
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I don't but it might help if you gave two very short code examples. That is give one example of how you do it in VB and one example of how you are doing it in C++. That should provide enough information for someone to give a good answer (possibly even me).
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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