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.
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...
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.
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;
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'
I would like to know in which way is the best to make ActiveX control for video. ActiveX control will need at least show picture and be able to go back in past, change resulation of picture and similar. How complex it is to do something like that? Is MFC best way to make it? Is there somewhere similar code?
I'm writing an ActiveX control. In one of the functions I'd like the user to be able to pass me a pointer to a buffer that they created which I can then fill with data and return a success/error code. What's the appropriate way to do this? I was thinking about just using an OLE_HANDLE type for the parameter and then casting that to pointer inside the OCX but I'm not sure if that's safe or the right way to do it.
I`m working with MS Visual Studio 6. Trying to connect Word server with my window. This is call server in my class CXContainerView, inherit from CScrollView:
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.
I have an C++ application which uses Microsoft Web browser ActiveX control to launch any URL within the application. The browser is embedded in C++ form and It's working fine with all the feature Microsoft has exposed through Interface(IID_IWebBrowser2).But while any url that is using session cookie has been launched, even after closing the browser the session cookies are not getting deleted. For example if user login info is stored as session cookies,the url is using the cookies and getting launched without asking for user log in info.
But if I close the browser, and again relaunch , the cookies should be deleted and the url will not find the cookies to be used for log in . That is not happening here. Although this is session cookies , it's not getting deleted and being used by embedded browser. However, if the url is launched in IE, it is behaving as expected.
So, Do I need to delete the cookies explicitly? If Yes, How to do that?
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.
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"..
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?
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().
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.
I have a method that does some extensive work (retrieves a list of emails from an imap server). What i wanted was to add a flash movie that would start playing when the method is entered and will stop when the method finishes. Something like this:
The flash movie plays, but the speed is horrible, almoust frame by frame (it actually matches the stepping of the foreach method that fetches the mails from the server as i can see it retrieving one mail - the movie plays one frame and stops; retrieves another mail - the movie plays another frame and stops.).
In the loop that retrieves the messages, i added Application.DoEvents(); so that is not the problem.
Now i am thinking of somehow playing that flash movie on a separate thread that will not hang synchronous with the retrieving mails loop but i don't know how would i do that...
I just spent 3 hours writing and debugging 37 lines of code. Is this normal or am I "below average" in coding abilities. I come from a C background and decided to write C++ code that I finally got right as shown below for the specific example:
I think it was more the learning along the way that consumed atleast 75% of my time for this specific case. But then again, I read that programming always entails learning along the way and so its somehow no excuse for the long time taken in this specific case.
So as a matter of interest, what pace do all of you operate on, on average? i.e. LOC/day, Debugs per day or any other indicator of productivity?
iam writing the statements in to this log by using fprintf(). As the .exe where i have put this mechanism runs continuously,the size of log file is increasing gradually.
1)If there is any way to restrict the Log file size,if the file reaches the mentioned size,the file should be discarded and logging should be done in another file with the same name.
{OR}
2)Put a time interval,once after that interval is elapsed, a new log file should be created.
