Visual C++ :: Debug Assertion Failed With MessageBox
Mar 22, 2014
I am trying to use MessageBox in OnInitialUpdate function but its giving me "Debug Assertion Failed Message"
File: f:ddvctoolscrt_bldself_x86crtsrcvsprintf.c
Line:244
I am using the following code:
Code:
void CRotateImageView::OnInitialUpdate() {
int k;char str[2];
CView::OnInitialUpdate();
CString szStr,szstr1;
[Code] .....
However when i am using the same code in OnDraw its working.
Code:
void Csprintf_sEGView::OnDraw(CDC* /*pDC*/) {
Csprintf_sEGDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
if (!pDoc)
return;
[Code] ....
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Mar 11, 2014
I am trying to run the code below but I receive the following error message :
Debug Assertion Failed!
Program: C:TestDebugTest.exe
File: c:program filesmicrosoft visual studio 10.0vcincludevector
Line:932
Expression:vector subscript out of range
Code:
#include <fstream>
#include <cstdlib>
#include <iostream>
#include <strstream>
#include <cstring>
#include <cmath>
#include <map>
#include "Swap.h"
#define SIZE_X 100
[Code] .....
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Apr 14, 2012
In my program I open two files and write data into each, and close them. this is done in a while loop.
int main() {
while() {
myFile = fopen("file1.txt","w");
myFile2 = fopen("file2.txt","w");
// write data into files using fprintf() in a for loop
fclose(myFile);
fclose(myFile2);
}
}
However, after some iterations the fopen() for myFile2 fails.
Debug assertion failed!
Program....
File ......srcfprintf.c
Line 55
Expression (str != NULL)
I have not been ableto locate the bug in the code that is causing the failure.
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Oct 10, 2013
I have a MFC Com Dll that has a CDialog. In the OnCreate event I create an ActiveX control. The dll is hosted inside an executable of mine. In this scenario everything works fine!
The dll is also called from an external executable and then a Debug Assertion in OCCSITE.cpp occurs when I create the ActiveX control. I suspect that in the executable there is no AfxOleInit. I spend some time with this problem and tried to CoInitialize, OleInitialize, AfxOleInitModule and even AfxOleInit in the dll. But all that does not change a thing. If I understand the mechanics then this is an intended behaviour and should be done in the host exe.
What I observed in the OCCSITE.cpp:
Code:
_AFX_THREAD_STATE* pState = AfxGetThreadState();
if (!pState->m_bNeedTerm && !AfxOleInit())
return hr;
In my executable m_bNeedTerm is 0 and in the external one (where the ActiveX does not work) it is -1. In AfxOleInit this is explained as a special flag to prevent the dll from doing an unnecessary OleInitialize. But as I said even if I call OleInitialize myself I get the Debug Assertion and the ActiveX is not visible.
Is there anything I can do to make the ActiveX control work in the external application? Obviously I cannot Change anything in the application...
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Nov 12, 2013
I got this message after i delete allocated class object, should i check the deleting? if it's object what is the correct way to delete/delete[]?
theCars[nToDel] is a static array of pointers
bool Cars::deleteElement(int nToDel) {
if (theCars[nToDel] != NULL) {
delete[] theCars[nToDel];
theCars[nToDel]=NULL;
inUse--;
return true;
} else
return false;
}
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Feb 14, 2013
I am using visual studio 2012 and i pass three command line arguments as 10 20 30 and when i m compile the program get error.....
Code:
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
main(int n,char **p) {
int sum=0,i;
if(n>=2)
[Code] .....
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Jan 5, 2015
Here is what I did,
Code:
oldHook = ::SetWindowsHookEx(WH_CALLWNDPROCRET, CallWndRetProc, NULL, ::GetCurrentThreadId());
MessageBox(...);
UnhookWindowsHookEx(oldHook);
Then within the callback function CallWndRetProc, I tried to change the background color of the dialog,
Code:
PAINTSTRUCT ps;
HDC hdc = BeginPaint(msg->hwnd, &ps);
::SetBkColor(hdc, RGB(255, 0, 0));
EndPaint(msg->hwnd, &ps);
But it doesn't change the background color of the dialog. I wonder what is the right way to do that?
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Feb 2, 2014
Following function is causing run-time assertion. I am using VC6.0 professional version. My OS is Win7.0. I am calling the function from OnDraw. OnDraw does not contain any other code other than the function call code:
Code:
void CMoireUseCirclesView::UseCircle(CDC* pDC){
int x1, y1, x2, y2;
x1=20;
y1=100;
x2=200;
y2=280;
int color1=0;
int color2=0;
[Code] ....
The assertion is occurring at:
Code:
newPen.CreatePen(PS_SOLID,5, RGB(color1,color2,color3+i));
The error message is:
Debug Assertion Failed
Prog:....
File:wingdi.cpp
Line:1120
Debug is giving following values
Loaded 'ntdll.dll', no matching symbolic information found.
Loaded 'C:WindowsSysWOW64kernel32.dll', no matching symbolic information found.
Loaded 'C:WindowsSysWOW64KernelBase.dll', no matching symbolic information found.
Loaded symbols for 'C:WindowsSysWOW64MFC42D.DLL'
[Code] ...
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Dec 8, 2013
Basically, I'm moving a VC project from my Windows 7 build machine to a new build machine that's running Windows 8.1. One of the pre-build steps (for a particular project) runs a script which needs to call the M4 macro processor (which is installed on my C: drive). I've been pretty careful to set everything up the same on both machines (including my PATH) but when I try to build the project on my Windows 8 box, MSVC's IDE shows me this error output when running the script:-
m4 failed with exit code 255
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Oct 6, 2013
The breakpoints I am setting are not caught by the IDE. Any how I can recover that.
I used to know I can delete the sdf file and rebuild. Just to make sure...
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Feb 27, 2014
I'm working on a project which consists of several ocx loaded by one exe. The platform is WinCE. Now I'm on a process to create a new ocx. I do have a copy of those ocx projects in Win32 platform. These Win32 versions were only used to register ocx in local system and then put those on to application dialog by 'Insert ActiveX'.
Now the problem is those Win32 projects are so outdated, and unable to build. Getting too many linking errors to be solved.
I have build the new ocx and link that with exe manually by editing .rc file and all. But still no luck. New ocx is getting registered in WinCE device but failing to start application.
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Oct 2, 2014
I've created a new dialog in my MFC dialog based application. the new dialog contains 5 control buttons. The following happens and I don't understand why?
1. click on buttonX. (result ok, OnBnClicked message is sent)
2. click on on any place of the application, but not on the dialog.(removing focus from dialog)
3. click again on buttonX (FAILED, OnBnClicked message is NOT sent). but if instead I click on any other button in the dialog (result ok, OnBnClicked message is sent).
And when I do:
1. ...
2. ...
3. click on the dialog area just to set focus on the dialog again
4. click again on buttonX. (result ok, OnBnClicked message is sent)
**I need to do step 3 only if I want to click again on the buttonX! why?? I think it related to SetFocus() but I m not sure how.
I've tried different style like, tool windows, overlapped, popup. it happens in all the cases.
Code:
class CToolsDlg : public CBDialog {
DECLARE_DYNAMIC(CToolsDlg)
public:
CToolsDlg(CWnd* pParent = NULL); // standard constructor
virtual ~CToolsDlg();
CToolTipCtrl m_ToolsTips;
[Code] .....
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Sep 28, 2014
You place a breakpoint at one of locations within the message loop. But I want the breakpoint to trigger when I click on the application window, for example. But I can't, it went so fast so long as I switch from VS to the application program, the breakpoint is hitted again, then the application is frozen again. I don't know how to setup a conditional breakpoint.
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Sep 18, 2012
i changed my code from release to debug mode. when i try to debug it shows a dialog box that '... does not contain debug information press ok to continue"..
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Aug 1, 2013
I am trying to open a file from local Path by the follwing code
CString csRegExtractFileRemote;
CFileException ef;
CFileStatuscfsStatus;
CFile cfSAP;
csRegExtractFileRemote = "c:SWRemoteFilesample.txt";
[Code] ....
Compilation is success full ,but i am observing that some junk value is there in the path variable. After Reaching If statement cursor went to final return statement ...
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Dec 31, 2013
I dumped all symbols into C:WindowsSymbols folder, It takes more than 2 minutes to load an application which really surprises me. Why and when should I use those symbols?
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Aug 10, 2014
This code compiles in release mode but I get this compile error in debug mode:
Error1error C2664: 'GetPrivateProfileStringA' : cannot convert parameter 4 from 'wchar_t [255]' to 'LPSTR'g:easywebstoreuploaderini.cpp45
Code:
CString CIniFile::getKeyValue(CString strKey, CString strSection) {
wchar_t ac_Result[255];
// Get the info from the .ini file
m_lRetValue = GetPrivateProfileString(strSection, strKey, _T(""), ac_Result, 255, m_strFileName);
CString strResult(ac_Result);
return strResult;
}
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Jan 15, 2013
On fairly rare occasions, when attempting to debug one of my MFC applications on VS 2010, a compilation error is encountered, and instead of bringing up the customary Windows or MFC file with a arrow pointing to the problem, a disassembly appears with an arrow pointing to one of the assembler instructions.
Since Windows assembly language is hardly my forte, I do not know how to interpret the error. Furthermore, the Output usually indicates one or more 'first chance exceptions' but little more, and the Stack output usually quite sparse and often refers cryptically to some ntdll.dll!7c92a82c().
How can I better define the compile error?
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Oct 21, 2014
I'm trying to do this :
when user chick first radio button a message1 will show with OK button
when user chick second radio button an another message2 will show with OK button
But its didn't work like this. its work like:
1- user chick first radio button
2- message1 will show with OK button
3- user click OK
4- user chick second radio button
5- message1 will show again with OK button
6- user click OK
7- then message2 will show again with OK button
so when user click in second time its show the 2 message the message1 then the message2
this is my code
private void radioButton2_CheckedChanged(object sender, EventArgs e) {
MessageBox.Show("Amount is ... " + money, "Amount" , MessageBoxButtons.OK , MessageBoxIcon.Information);
}
private void radioButton1_CheckedChanged(object sender, EventArgs e) {
MessageBox.Show("Item name : " + arr[0].name ,
"Availability", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
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Jul 15, 2014
I have a form that has been loaded and I click on a quit link to terminate my app but then I display a messageBox to ask the user if they want to save a file before quitting. When the messageBox pops up, another new instance of this form displays. What causes this and how can I prevent it?
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Aug 23, 2014
I am trying to build a program that takes a user password (6+ characters, One uppercase, one lower case, and one number), and checks for errors. The idea is that if the user is doing something wrong (say, forgetting to use an uppercase letter), the program will tell them what the error is, and prompt them to enter the program again.
I get through the building process without errors, but whenever I run the program, I get this error: [URL] ....
Here is my code:
#include <iostream>
#include <cctype>
using namespace std;
bool checkPass(char [], int); //Password Checking Function
char convert(string);
[Code] ....
According to the box, the error appears on line 56 and 68.
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Sep 6, 2014
im trying to save my windows application into an xml file, but the operation failed i when im trying to create XmlSerializer ( no error accures).
void main() {
this.saveFileDialog1.Filter = "Xml Files (*.xml)|*.xml";
this.saveFileDialog1.FilterIndex = 2;
this.saveFileDialog1.RestoreDirectory = true;
if (this.saveFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK) {
XmlSave.SaveData(GuestsManager.Instance, this.saveFileDialog1.FileName);
[code]....
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Apr 12, 2014
So here I have a program that is supposed to basically sort out who passed and failed. I am currently stuck on the switch statement, I'm trying to count how many students received an A, B, C, etc.
Here's what I have so far:
#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;
void printIdInfo(ofstream &fout);
void printColumnHeaders(ofstream &fout);
[Code] ....
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Mar 12, 2014
I have developed the msword automation using the following link
[URL] ....
and using VC++ in Visual studio 2010,and msoffice 2007.
Its working fine. but the exe can not run in windows xp (same msoffice 2007 and installation folder also same). i do not know what is the problem. plz tell about how compactability in both os and different version of office like 2003, 2007, 2010, etc....
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Jan 13, 2013
what i want to do is if memory allocation fails it display a message shown in the example but its not working
vehiptr = new VEHICLE[vnum];
if(vehiptr == 0)
{
cout<<"Failed to Allocate Memory"<<endl;
return main();
}
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Sep 21, 2013
I have a.h as follows
namespace one{
namespace two{
enum Filter {
GRAPE, COSINE, SYNC
};
}
}
If I do this in another header file b.h
#include <one/two/a.h>
namespace one {
namespace three {
}
}
I get error 'n' does not name a type.
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