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Debug your application and check where the priblem is.
or
Try something like this: And be sure not to use fileObj.Close() before the following code:
fileObj.SeekToBegin();
while(fileObj.ReadString(strLine))
{
strLine += "\r\n";
buffer += strLine;
file.WriteString(strLine);
}
file.Close();
fileObj.Close();
This is reading one file line by line and writing to another file.
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sir
I am writing this code
CStdioFile file;
if(!file.Open(str,CFile::modeCreate | CFile::modeWrite, 0))
{
AfxMessageBox(CString("File cannot be Saved. Please Check if the file is read only."));
return;
}
file.SeekToBegin();
while(file.ReadString(buffer))
{
buffer += "\r\n";
strLine+= buffer;
file.WriteString(buffer);
}
file.Close();
fileObj.Close();
Program comlpile successfully But when i run it Its Show
File cannot be Saved. Please Check if the file is read only
Message . Can u told me where need to change
Regard's
Kaushik
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Well, the last block of you code, i.e.
if(! myFile.Open( strFileName, CStdioFile::modeCreate | CStdioFile::modeWrite
| CStdioFile::modeNoTruncate, &e ) )
{
...
}
(with very little modifications) works fine on my system.
I suggest, again, to use thew debugger: inspect the myFile object runtime content, m_strFileName member looks interesting.
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.
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woyld u like to Share your little modification with me
so that i can also Implement it
Regard's
Kaushik
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My modifications are of no importance, I had to do them to make that piece of code run on my system, I just changed the myFile path and initialized strLine with a string. Anyway I don't want to hide anything: the code snipped is below:
void CMFCTestDlg::WriteOnFile(LPCSTR strFileName)
{
CStdioFile myFile;
CFileException e;
if(! myFile.Open( strFileName, CStdioFile::modeCreate | CStdioFile::modeWrite
| CStdioFile::modeNoTruncate, &e ) )
{
CString failCause = "Unable to open file. Reason : ";
switch (e.m_cause) {
case CFileException::none:
failCause += "No error occurred.";
break;
case CFileException::generic:
failCause += "An unspecified error occurred.";
break;
case CFileException::fileNotFound:
failCause += "The file could not be located.";
break;
case CFileException::badPath:
failCause += "All or part of the path is invalid.";
break;
case CFileException::tooManyOpenFiles:
failCause += "The permitted number of open files was exceeded.";
break;
case CFileException::accessDenied:
failCause += "The file could not be accessed.";
break;
case CFileException::invalidFile:
failCause += "There was an attempt to use an invalid file handle.";
break;
case CFileException::removeCurrentDir:
failCause += "The current working directory cannot be removed.";
break;
case CFileException::directoryFull:
failCause += "There are no more directory entries.";
break;
case CFileException::badSeek:
failCause += "There was an error trying to set the file pointer.";
break;
case CFileException::hardIO:
failCause += "There was a hardware error.";
break;
case CFileException::sharingViolation:
failCause += "SHARE.EXE was not loaded, or a shared region was locked.";
break;
case CFileException::lockViolation:
failCause += "There was an attempt to lock a region that was already locked.";
break;
case CFileException::diskFull:
failCause += "The disk is full.";
break;
case CFileException::endOfFile:
failCause += "The end of file was reached.";
break;
default:
failCause += "Unknown cause.";
break;
}
AfxMessageBox(failCause);
}
else
{
myFile.SeekToEnd();
CString strLine = "foo";
strLine += "\r\n";
myFile.WriteString(strLine);
myFile.Close();
}
}
and the call follows:
WriteOnFile("MFCFoo.txt");
It outputs the MFCFoo.txt text file containing foo (at each call the file is augmented).
Hope that helps (again, use the debugger)
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.
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Set a breakpoint on the first statement, and then single-step through each successive statement, observing variables along the way. Anything short of that and you are not really asking for help. 
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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hello to all..
my question :
i have some codes of OPENGL.
now i want to import it in VC++.
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Can you be more specific.
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thank u for reply..
actually below codes are opengraphical language(OpenGL)..
this program should be called in VC++ ..
how i have to call in my program..
help me..
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <gl glut.h="">
/*
* Window properties
*/
#define WINDOW_WIDTH 500
#define WINDOW_HEIGHT 500
#define WINDOW_X 100
#define WINDOW_Y 100
#define WINDOW_TITLE "RGB-ColorCube"
/*
* Perspective properties
*/
#define FOV_ANGLE 30
#define CENTER_X 0.0
#define CENTER_Y 0.0
#define CENTER_Z 0.0
#define VIEWER_X 0.0
#define VIEWER_Y 0.0
#define VIEWER_Z -2.1
#define UP_X 0.0
#define UP_Y 1.0
#define UP_Z 0.0
#define CLIPPLANE_NEAR 1.0
#define CLIPPLANE_FAR 20.0
#define ROTATION_SPEED 2.0
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
GLfloat rot_x = 0.0, rot_y = 0.0;
GLfloat saved_x, saved_y;
/*
* Material colors used for shading
*/
GLfloat red[4] = {.8, 0.0, 0.0, 1.0};
GLfloat white[4] = {.8, .8, .8, 1.0};
/*
* Function prototypes
*/
void usage(void);
void draw_scene(void);
void draw_object(void);
void init(int argc, char **argv, void (*draw)(void));
void save_position(int button, int state, int x, int y);
struct point get_coords(double a, double b);
void vertex(double a, double b);
void rotate(int x, int y);
void set_color(int angle);
int main(int argc, char **argv) {
/*
* Init OpenGL and enter the event loop
*/
init(argc, argv, draw_scene);
return 0;
}
/*
* Handle rotations and buffer swapping and call the function draw_object
* which does the actual drawing
*/
void draw_scene(void) {
static GLfloat old_rot_matrix[16];
static int initialized = 0;
GLfloat new_rot_matrix[16];
/* calculate new rotation matrix */
glPushMatrix();
glLoadIdentity();
glRotatef(rot_x, 1.0, 0.0, 0.0);
glRotatef(rot_y, 0.0, 1.0, 0.0);
glGetFloatv(GL_MODELVIEW_MATRIX, new_rot_matrix);
glPopMatrix();
/* calculate total rotation */
glPushMatrix();
glLoadIdentity();
glMultMatrixf(new_rot_matrix);
if (initialized) {
glMultMatrixf(old_rot_matrix);
}
glGetFloatv(GL_MODELVIEW_MATRIX, old_rot_matrix);
initialized = 1;
glPopMatrix();
glPushMatrix();
glMultMatrixf(old_rot_matrix);
draw_object();
glPopMatrix();
glFlush();
glutSwapBuffers();
}
/*
* Initialize the OpenGL machine
*/
void init(int argc, char **argv, void (*draw)(void)) {
GLfloat light0_pos[] = {100.0, 100.0, 100.0, 1.0};
GLfloat light0_color[] = {1.0, 1.0, 1.0, 1.0};
GLfloat ambient_light[] = {0.8, 0.8, 0.8, 1.0};
glutInit(&argc, argv);
/* Create a window */
glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
glutInitWindowSize(WINDOW_WIDTH, WINDOW_HEIGHT);
glutInitWindowPosition(WINDOW_X, WINDOW_Y);
glutCreateWindow(WINDOW_TITLE);
glClearColor(0.0, 0.0, 0.0, 0.0);
/* Set up some light sources */
glLightfv(GL_LIGHT0, GL_POSITION, light0_pos);
glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_color);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient_light);
glEnable(GL_LIGHT0);
/* glEnable(GL_LIGHTING); */
glEnable(GL_DEPTH_TEST);
glShadeModel(GL_SMOOTH);
/* Create a viewing frustum */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(FOV_ANGLE, WINDOW_WIDTH/WINDOW_HEIGHT, CLIPPLANE_NEAR,
CLIPPLANE_FAR);
gluLookAt(VIEWER_X, VIEWER_Y, -VIEWER_Z, CENTER_X, CENTER_Y, CENTER_Z,
UP_X, UP_Y, UP_Z);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(VIEWER_X, VIEWER_Y, VIEWER_Z);
glutDisplayFunc(draw);
glutMouseFunc(save_position);
glutMotionFunc(rotate);
glutMainLoop();
/* Not reached */
}
/*
* Save the position of the mouse pointer where the bottun press occured
*/
void save_position(int button, int state, int x, int y) {
if (state == GLUT_DOWN) {
saved_x = x;
saved_y = y;
}
}
/*
* Calculate the angle the object has rotated by since the last update
*/
void rotate(int x, int y) {
rot_y = (GLfloat)(x - saved_x) * ROTATION_SPEED;
rot_x = (GLfloat)(y - saved_y) * ROTATION_SPEED;
saved_x = x;
saved_y = y;
glutPostRedisplay();
}
/*
* Draw a object
*/
void draw_object(void) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBegin(GL_QUAD_STRIP);
glNormal3f(0,0,1);
glColor3f(0,0,0);
glVertex3f(-0.5,-0.5,-0.5);
glColor3f(0,1,0);
glVertex3f(-0.5,0.5,-0.5);
glColor3f(1,0,0);
glVertex3f(0.5,-0.5,-0.5);
glColor3f(1,1,0);
glVertex3f(0.5,0.5,-0.5);
glNormal3f(1,0,0);
glColor3f(1,0,1);
glVertex3f(0.5,-0.5,0.5);
glColor3f(1,1,1);
glVertex3f(0.5,0.5,0.5);
glNormal3f(0,0,1);
glColor3f(0,0,1);
glVertex3f(-0.5,-0.5,0.5);
glColor3f(0,1,1);
glVertex3f(-0.5,0.5,0.5);
glNormal3f(-1,0,0);
glColor3f(0,0,0);
glVertex3f(-0.5,-0.5,-0.5);
glColor3f(0,1,0);
glVertex3f(-0.5,0.5,-0.5);
glEnd();
glBegin(GL_QUADS);
glNormal3f(0,1,0);
glColor3f(0,1,0);
glVertex3f(-0.5,0.5,-0.5);
glColor3f(0,1,1);
glVertex3f(-0.5,0.5,0.5);
glColor3f(1,1,1);
glVertex3f(0.5,0.5,0.5);
glColor3f(1,1,0);
glVertex3f(0.5,0.5,-0.5);
glEnd();
glBegin(GL_QUADS);
glNormal3f(0,-1,0);
glColor3f(0,0,0);
glVertex3f(-0.5,-0.5,-0.5);
glColor3f(0,0,1);
glVertex3f(-0.5,-0.5,0.5);
glColor3f(1,0,1);
glVertex3f(0.5,-0.5,0.5);
glColor3f(1,0,0);
glVertex3f(0.5,-0.5,-0.5);
glEnd();
}
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I guess you got errors when compile this code,right? it was better you used of pre tags for your code.;)
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Hi
I am preparing an .asmx file that calls a c++ class using its .dll
and generates output in .xml format.But I want output in HTML format.
To ganarate HTML output I have used wsdl "useService" and "callService" functions in html file.
But when i run this from from localhost it gives error "Client Service unavailable" Can anyone tell me plz how to resolve this problem.:
I m giving my html file
//CPPWebService.html
var n = 10;
var iCallID;
var callObj;
function init1()
{
s.useService("http://localhost/MyWebServices/CPPWebService.asmx?WSDL","yyy");
var headObj = new Object();
callObj = s.createCallOptions();
callObj.async = false;
callObj.funcName = "MyMethod";
callObj.SOAPHeader = new Array();
callObj.SOAPHeader[0] = headObj;
oSPAN.innerText = "Number returned is";
iCallID = s.yyy.callService(MyResults, callObj);
MyResults(iCallID);
alert("Over");
alert(iCallID.value);
}
function MyResults(result)
{
alert(result.value);
if(result.error){
var xfaultcode = result.errorDetail.code;
var xfaultstring = result.errorDetail.string;
var xfaultsoap = result.errorDetail.raw;
oSPAN.innerText = xfaultcode + " " + xfaultstring + " " + xfaultsoap;
alert(xfaultcode +xfaultstring +xfaultsoap);
}
else{
// Show the arithmetic
oSPAN.innerText += result.value;
alert(result.value);
}
}
function aaa()
{
alert(event.result.value + ' ' + event.result.id);
}
Equation :
//CPPWebService.asmx
<%@ WebService Language="C#" Class=CPPWebService.MyService %>
it use c++ class
that is as follows
#include "stdafx.h"
#using <mscorlib.dll>
#using "System.Web.dll"
#using "System.Web.Services.dll"
using namespace System;
using namespace System::Web;
using namespace System::Web::Services;
#include "CPPWebService.h"
namespace CPPWebService
{
int MyService::MyMethod()
{
return 42;
}
};
Thax in advance
Pankaj Jain
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Hi,
In my application i need customized menu.(i.e)i need only one menu .
So that i delete the menus already in IDR_MAINFAME like i delete help,view etc.
Thus i leave File menu as it is and delete other than that.
And i coded OnCreateClient() fucntion as
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
CMenu* pMenu = NULL;
if (m_hMenuDefault == NULL)
{
pMenu = GetMenu();
ASSERT(pMenu != NULL);
int iMenu = pMenu->GetMenuItemCount() - 2;
ASSERT(iMenu <= 0);
pMenu = pMenu->GetSubMenu(iMenu);
ASSERT(pMenu == NULL);
}
return CMDIFrameWnd::OnCreateClient(lpcs, pContext);
}
But i got assertion error in CMainFrame::Oncreate().
My requirement is i need only one menu.
How can i get that.Pls help me.
Anu
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Try after putting all your code in or after CMainFrame::Oncreate() function.
I don't know whether the function:
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
is called before or after the OnCreate function. You can access the menu programmatically only after your frame window and menu has been created.
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Try doing this
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
return CMDIFrameWnd::CreateClient(lpcs, NULL);
}
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I tried but the same error occurs.
I changed againg by following code.It works.
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)
{
CMenu* pMenu = NULL;
return CreateClient(lpcs, pMenu);
}
Now i got it.
Anu
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//first create the client
CMDIFrameWnd::OnCreateClient(lpcs, pContext);
//AND THEN you can delete some of its parts 
CMenu* pMenu = NULL;
if (m_hMenuDefault == NULL)
{
pMenu = GetMenu();
ASSERT(pMenu != NULL);
int iMenu = pMenu->GetMenuItemCount() - 2;
ASSERT(iMenu <= 0);
pMenu = pMenu->GetSubMenu(iMenu);
ASSERT(pMenu == NULL);
}
}
Greetings from Germany
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hi,
Is there a way to resize the mfc's dialog.
Best Regards,
Mushq
Mushtaque Ahmed Nizamani
Software Engineer
Ultimus Pakistan
"English is my second language; please excuse any grammatical or spelling mistakes"
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Yes. Set the dialog border to resizable, and then handle the WM_SIZE message to do any size/position adjustments of the dialog controls. Look in the dialog section here on CP for some examples.
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In the continue with Hans use of MoveWindow on the WM_SIZE.
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in addiction...
you can also use the function
CWnd::SetWindowPos(...)
to move and resize every kind of windows.
Russell
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Hi
Recommend any vanilla C++ classes which help me parses string like
"north america\canada\ontario\toronto"
Into something like:
result1.array[0] = "north america"
result1.array[1] = "canada"
...
And:
result2.parse("north america\canada\ontario");
if(result2.IsParentOf(result1))
{
...
}
else
{
...
}
that's basically management of hierachical information... sounds like an Xml DOM...
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There are several tokenizer classes here on CP. Take a look at this one.
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Thanks - but anything that's just ANSI vanilla C without MFC baggage? It's for use in one base project for historical in C++/WIN32 (but not MFC).
ANSI vanilla C means when time comes to upgrade it to .NET we have such option.
Thanks again
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u could use the CRT function strtok...
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hi all,
please anybody help me in solving this..........
thanks in advance
swaroop
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