Visual C++ :: How To Print Contents Of CRichEditCtrl V 2.0
Oct 5, 2012
I am trying to print the content of the CRichEditCtrl v 2.0. The problem is that when I want to use pagination (with A4 pages), the printed text (which is just 4 sample line with 40 chars at most) at the code lTextPrinted =FormatRange(&fr,TRUE); is always lesser than the actual text pointed by the lTextLength variable making the loop run for ever. notice that using the RichEditControl Version 1 it works fine.
Check the code. I am attaching also the full source code at [URL]
Code:
CPrintDialog printDialog(false);
if (bShowPrintDialog) {
int r = printDialog.DoModal();
if (r == IDCANCEL)
return; // User pressed cancel, don't print.
[code]....
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Sep 10, 2013
QUESTION: What is the class name of CRichEditCtrl? More generally, how can I figure this out myself eg with the debugger or documentation?
I've successfully made 3-4 fairly complicated controls from scratch, starting by subclassing CButton as shown in some of the associated example projects.
My current project needs a CRichEditCtrl, with just a slight bit of extra functionality.
I've always used a method called RegisterControlClass(), taken from the example projects, that filled in a WNDCLASS structure by getting another class's WNDCLASS then just modifying it a bit. To get the initial values I used the class name "button" as that was in the example program. It worked fine.
Now, to get the name of SCRichEdit, I'm stumped.
I started by examining a real CRichEditCtrl:
CRichEditCtrl* prich = (CRichEditCtrl*) GetDlgItem( IDC_PATCH );
I've tried using the debugger and looking at prich->GetRuntimeClass()->m_lpszClassName, but it equals "CWnd". Obviously wrong.
I found some docs on the 'net referring to MSFTEDIT_CLASS, which has a value of "RICHEDIT50W", that doesn't seem to work either.
I found some fields deep inside the prich object in the debugger leading me to think it might be simply "CRichEditCtrl" but alas not that either.
Here's the function with the class name "button" that works albeit isn't what I want.
Code:
BOOL SCRichEdit::RegisterControlClass() {
// STEP 1: check to see if a class is already registered with this name.
// If it is, and the WndProcHook is ours, then WE'VE already registered
// and its OK. Otherwise someone else is using the same class name. Not OK.
WNDCLASS wclsSCRichEdit;
static const TCHAR szClass[] = _T( "SCRichEdit" );
if ( ::GetClassInfo( AfxGetInstanceHandle(), szClass, &wclsSCRichEdit ) )
return wclsSCRichEdit.lpfnWndProc == (WNDPROC) SCRichEdit::WndProcHook;
[code]....
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Mar 4, 2013
I need to render content of CRichEditCtrl on device context of some CWnd. This code works ok:
Code:
CDC *dc = wnd->GetDC();
CRect cr;
wnd->GetClientRect( &cr );
dc->Rectangle(cr);
cr.right *= 15;
cr.bottom *= 15;
[Code] ...
The problem is that I want to scale the output. I was trying to send message to my control before blitting:
SendMessage( EM_SETZOOM, numer, denom ).
It scaled the control itself, but the blitted context was still the same size as original content CRichEditCtrl (befeoe scaling). Is there any way to blit/render scaled content of CRichEditCtrl to any device context (screen/paper) ?
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Jul 25, 2013
I've created a text file with the numbers from 1-450. After writing code to retrieve and print out the contents in the text file, the compiler only printed out the numbers 124-450. Is there a reason why this is happening?
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Sep 22, 2014
I need to create an overloaded cout that will print the contents of an array. So I can say output << a << endl;
And it will print the contents of the object a... which happens to be an array.
class info:
class List {
public:
List();
bool empty(); //returns true of false if empty
void front(); //makes current position at beginning of list
void end(); //makes current position at the end of list
[Code] ....
I understand this code, I am simply calling the size method from the program, but i don't know how to pass in the array so that i can print it line by line... simple syntax i am sure... but the whole thing is baffling me... I need to be able to call this on any variation of the class, so it cannot be specific to any one array.
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Apr 25, 2013
I have written the following code but i am stuck. Write a program that will prompt the user for a file name and open that file for reading. Print out all the information in the file, numbering each new line of text.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <ctype.h>
int main()
{
char line[81], filename[21], c;
int i = 1;
FILE *inFile;
[code]....
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Jun 29, 2013
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May 12, 2014
I am trying to open a file and print the contents of the file to the terminal window. It works when I put the file right in the directory with the Solution but not if the file is out on my desktop and I use the full path. Here is the code:
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int OpenFile(){
fstream SampleFile;
[Code] .....
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Mar 8, 2013
Code:
#include <stdio.h>
#include <stdlib.h>
int main (int argc, char *argv[])
{
char buffer[256];
FILE * myfile;
myfile = fopen("read.txt","r");
[Code]...
I also got an error in printing wherein the data in read.txt is "Hello" newline "World" and my program prints world twice.
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Apr 13, 2015
Is there some quick way of resetting the contents of an existing array to 0? Just to be clear, I'm not initializing the array, it already exists, has content and needs to be reset at 0. Is there a faster way than the code below?
Code:
for(i=0;i<100;i++)myarray[i]=0;
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Apr 24, 2015
HTML Code:
So I insert values from a vector into a list and into a multiset, and I noticed zero is added to their contents! I had to do a whole lot of debugging to find out where the error was, how can i stop this thing? Code which generates such error...
infact i checked the content of vector ups to be sure that there was no zero in it, but after loading into list combi_t * head, it seems like there was a zero added and this is giving me errors when i call function master_roller...
Code:
void ins(combi_t * &testa, int &numero, int &num, int &no)
{ // if (ricerca(testa, numero) == 0)
//{
combi_t *temp = new combi_t;
temp->val0 = numero;
temp->val1 = num;
temp->val2 = no;
temp->nextPtr = 0;
[Code] ....
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Apr 29, 2013
I wrote a program to write text contents to file stream through fputs, the file stream address was changed in the middle of writing text content to the stream (11% text content have been put into the file stream), that cause the file stream pointer can be evaluated problem and raise exception on stream validation code in fputs library function, my question is what things could go wrong to make file stream pointer changed its address to something else or a NULL pointer if the file stream have not been flushed and closed.
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Dec 7, 2013
I am currently working on a student records program and I want it to print a '-' after every 3 digits from the Id number that I read from the file(ID number from file doesn't have the dashes). How would I do that to print it with dashes?
Here are my reading functions.
Code:
void Read_Student(Student & Temp , ifstream & fin){
fin >> Temp.FirstName;
fin >> Temp.LastName;
fin >> Temp.Id;
fin >> Temp.Quiz;
for (int i = 0 ; i < 6 ; i++)
fin >> Temp.Test[i];
[Code] ....
Intro To Computer Science C++
SAL 343
JHG 344
John Adams
111223333 100 87 93 90 90 89 91
Willy Smith
222114444 90 73 67 -77 70 80 90
Phil Jordan
777886666 100 80 70 -50 60 90 100
One more thing, I also am having problems with reading last name. If I edited the inout file and had for example John Adams Jr. it would cause huge print problems. When I remove it it prints out perfectly.
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Nov 24, 2013
How do I print a mathematical series such as
1 + 2/2! - 3/3! + ...... n/n! //n is read from user
Not only we need to print the series on the screen but at the same time find the sum using simple loops.
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Sep 15, 2012
Printing out a sequence data structure. I am using a PC running Windows 7 with Microsoft Visual Studio 2008. This sequence has a dynamic array which stores a value_type which can be any of the built in data types for C++. Initially the sequence is 30 slots long. When the program starts the user starts at the beginning of the sequence by choosing the "!" option from the menu. The user will then insert a number such as 11 by selecting the "I" option (upper or lower case). Then the user will go to the next position in the sequence by selecting the "+" option then insert 22, then go to the next position and insert 33.
To show that the numbers are actually in the sequence the user goes back to the beginning of the array by selecting "!" and then select "C" to display the current number of 11. Then the user goes to the next position by selecting "+" and then "C" to display 22 and so forth. At this point the member function called current() works just find , but when trying to print the contents of the entire sequence the program displays garbage. Why?
Code:
// FILE: sequence_test.cpp
// An interactive test program for the new sequence class
#include <cctype> // Provides toupper
#include <iostream> // Provides cout and cin
#include <cstdlib> // Provides EXIT_SUCCESS
#include "sequence2.h" // With value_type defined as double
using namespace std;
using namespace CISP430_A2;
[Code].....
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Apr 12, 2014
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Sep 27, 2014
I need to create a code in c fits the description below,
Description : A positive integer triple (a, b, c) with 0 < a < b < c and a^2 + b^2 = c^2 is called a Pythagorean triple. Write a program in C which reads an integer N and prints
1. the total number of Pythagorean triples (a, b, c) with c < N,
2. every such Pythagorean triple, and
3. the triple that has the largest value of c.
Hint: you can enumerate all possible pairs (a, b) with 0 < a < b < N and check if they satisfy a
2+b
2 < N2
.
Example Input/Output
- Enter a positive integer: [3]
There is no Pythagorean triple in this range.
- Enter a positive integer: [15]
There are 3 Pythagorean triples in this range:
(3, 4, 5)
(5, 12, 13)
(6, 8, 10)
The triple with the largest value of c is (5, 12, 13).
- Enter a positive integer: [6]
There are 1 Pythagorean triples in this range:
(3, 4, 5)
The triple with the largest value of c is (3, 4, 5).
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Sep 28, 2014
I'm new to programming and i'm trying to do a certain task. I want to use a for loop to read certain data from a txt file and print them to a console. I'm trying to read student names and their grades.
Something like
3 // 3 represents the number of students.
George 97
Sarah 70
Maya 88
The data may vary but it's always in this format.
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Oct 28, 2013
This C++ question is related to Temperatures and Our task is to : Write a well-documented C program that prints out a table of temperatures in Celsius, from 0 to 100, in steps of 5 degrees, with the equivalent Fahrenheit.
To convert temperatures from Celsius to Fahrenheit use the equation : Temp(F) = Temp(C)*9/5 + 32
Include headings on the columns of figures.
Use the following formatting in your printf to produce a tabulated output:
Printf(“%4.1f %4.1f
”, Cent, Fahr);
This format will print each variable in a fieldwidth of 4 digits, with one place of decimal. The ‘ ’ inserts a tab to space the columns. This is our code, but for some reason its not working.
#include<stdio.h>
void main() {
int Cent=1, Fahr=1;
int Temp;
int F;
int C;
[Code] ....
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Nov 19, 2014
I'm trying to use the given Iterators to overload my = operator to print my list to screen. I keep getting Link2019 error though and have narrowed the problem down to my print operator. I'm wondering if it has anything to do with the fact that my operator is in private part of class? I'm new to this concept.
Code:
#include "List.h"
// methods for Node all
//ME
Node::Node( const string &s, Node * p, Node * z) : word( s ), next( p ), prev(z)//constructor {
word = s; // init. word data with a copy of s
next = p; // next pointer points to p
[Code] .....
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Sep 10, 2014
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Feb 1, 2013
I must take an old MFC project in VC++ 6.0 and make changes.
The problem is text size in screen is different from size in print preview.
for example with this font
Code:
CFont f50;
f50.CreateFont(100,0,0,0,FW_BOLD,0,0,0,DEFAULT_CHARSET,OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,FF_DONTCARE,"Frutiger LT Std 45 Light");
And this text
Code:
s=_T("Let's try to calculate the size of this text");
and with MM_LOMETRIC map mode
GetTextExtent() returns me:
On screen: (1595,99)
Ink printer + print preview: (1589,100)
PDFCreator + print preview: (1580,100)
comparing with screen size the height is bigger but lenght is smaller. I don't understand.
I can understand that different printers process the fonts in different way and then to have different lenghts. That's not the problem. The problem is I need to simulate in screen the same behaviour i will have on printer because these texts are being aligned in the document, and I don't want to see that the text si aligned different in text than in paper.
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Nov 17, 2013
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Code:
void Sort(int ary[], int size)
{
int temp;
int smallest;
int current;
int move;
}
[code]....
put it wont print the numbers sorted when I use my print function, just the unsorted numbers.
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Sep 1, 2014
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{
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}
This is suppose to output
t=-3 *
t=-2 *
t=-1
.
.
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Jul 20, 2013
I'm trying to display the contents of this map. I'm having some trouble where the program ceasing to display after "Index Contents."(lines 33 -40) If I move the display for loop right where I'm inserting the values (line 52) into the map I get output. I'm not sure where bug is.
#include <iostream>
#include <fstream>
#include <vector>
#include <sstream>
#include <regex>
#include <iterator>
#include <algorithm>
#include <string>
#include <map>
using namespace std;
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[Code] ....
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