Comments by gssajith87 (Top 53 by date)

My New Setup is working fine.

The following is what I suspect, I did a clean of the solution before i builded last and after this event only i started having the problem of full compilation after every change. May be after i did a clean operation, the Solution is failing to point to the object files directory properly. How to ensure this ? How to ensure that , my solution refers to the correct directroy that contains the obj files...?

Does it make any sense ?

But i dont see, if the change i make sits on top of all compilation units. I have modified same file same line before and it have just compiled as desired., but yesterday i got this problem for every changes i make i am getting to compile the entire solution.

What i doubt is, if i had changed VS2010 Settings, that is forcing this full compilation. Is there a possible project propery setting that will cause this problem. ??

For now, i have created a new solution and have started working on it and not sure, if the same will happen to the new one as well.

@Stefan_Lang, that was not my case. In my case, the problem was, the file was not compiling properly when i compile the solution making changes multiple times. But unsure, why this happens !

Thanks for your time guys., Recently i noticed the same issue occured again for me! that is, when i keep my mouse over the variable, i was not able to see the value of the variable while debugging. i compiled my solution mutiple times to get rid of this problem, but it did not help. I went on to delete the exe file and again compiled my solution., it just did a linkage and created the exe but the problem still existed. So i wanted to make sure that , the file in which the variable exist was properly compiled., so i removed a ";" to check if it throws any compilation error when compiling the solution. But on compiling the solution, i noticed that the compilation was successful and it did not find the error that i put in . So now i decided to compile the file alone in which the variable exist , this time the compiler found the error that is it compiled the file, now again i compiled the solution., this time when i debug i was able to see the variable value while debugging...


Conclusion : In my case, the problem was, the file was not compiling properly when i compile the solution making changes multiple times.

Will post the code snippet in my next post! Had to move on with other activities, though i am facing similar errors now and then i will post it when i get it next time (shortly).

Reg the questions posted by @Stefan_Lang,
1) The Files are for sure compiled.
2) No Conditional Compilation.
3) I am quite sure , the variable is with in the scope., as the matter of evidence i am able to cout.

In the code example you have posted., if i do a cout of integer "i", i would have ended up with a compilation error.

Thanks for all your times., will get back shortly with the possible code snippet.

I tried out watch window, but it throws that's the variable is undefined

Yes i have configured in DEBUG only. I am able to see all other values in other files., only one file is having this problem, i tried cleaning up the proj and rebuild, i tired deleting the obj file corresponding to the cpp file and compiled again. Still problem exist.

Yes, it comes to every break point.

Thanks, I directly changed it from void to ALIB* and it works, even passing void pointer as you have mentioned earlier is working.

Hi Thanks for your reply,
I don't think this will work, even the problem i am having now is that,

I have a void pointer that is passed to the library and i need to cast the void pointer in the library.

As you have mentioned, even if i have the interface class in the library and the definition in the dll, will it be possible to call the function defined in the dll from library by casting the void pointer in the library ?

Note: The library is linked to the dll

thanks, will do

pwasser,
Thanks for your time., i got it solved., the problem was, the project was linking to libboost_regex-vc100-mt-gd-1_49.lib library, but actually, the my project was to link to libboost_regex-vc100-mt-sgd-1_49.lib library. I was pointing to a libary directory that has both these libaries., I am not sure why my application is automatically linking to the wrong libarary., Any Suggestions on this ?

It looks like i have linked the library appropriately., Any thing else to check

I could not find an function that returns this particular value in VSSAPI.dll., That is why i thought of checking if an win32 api is available. The windows volume property is displaying the information, so i thought there should be a win32 api or a registry that has this value stored.

This is how i do allocate memory:

mystruct = (PVOLUME_BITMAP_BUFFER) VirtualAlloc(NULL,
dwBitmapBytes + 5120, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);

This is how i fill the structure :

res = DeviceIoControl(hVolumeHandle, FSCTL_GET_VOLUME_BITMAP,
&iLCN, sizeof(iLCN), mystruct , dwinSize,
&dwOutSize, NULL);

allocation of MyStruct.buffer is done by IOCTL CALL., FSCTL_GET_VOLUME_BITMAP

My Structure is
typedef struct {
LARGE_INTEGER StartingLcn;
LARGE_INTEGER BitmapSize;
BYTE Buffer[1];
} VOLUME_BITMAP_BUFFER, *PVOLUME_BITMAP_BUFFER;

and FillMyStruct is an IOCTL call, that fills the structure.

From where are you generating the excel Report ? Is it an application that generates Excel Report for you ? What are you doing exactly ? can you please eloborate !

@Richard macCutchan. I can see that the lib file is available in the location that i have given as input directories to the linker.
One more clarification., "libboost_log-vc100-mt-sgd-1_49.lib" is the one that cannot be find by the application., but i expect my application to look for "libboost_log-vc100-mt-gd-1_49.lib" [-gd instead of -sgd] , as i am compiling it as a MultiThreadedDll . Is my question valid., sorry if not.

@Richard macCutchan, Thanks for your time. Do you mean that i have wrongly compiled the boost lib.

Thanks Brydon, So i take it as, it is by default, showing up some values in the memory (always a 16 byte padding at end of my pointer)that i need not worry about..

Thanks for bringing in LCN and VCN ., will read regarding this and try to get my problem solved. Better suggestions on this are welcome. MFT is still very unclear.

@Sergey Alexandrovich Kryukov yes., Sorry for that., it is Master File Table

Thanks Desai.,
My question is why do i get an INVALID_PARAMETER = 87., Error when i call the writefile with correct parameters., and why does it not throw any error when i change the buffer size.,

-Sajith

question improved., 87 is the last error i get.,

Thanks for your time Vyacheslav

Thanks Vyacheslav. Yes, i too saw the link., and searched for the function DecodePointer in my entire solution but not able to find one., Can you tell me which library or dll will be using DecodePointer call internally in common? (I am suing Md5, AES, BlowFish encryption and decryption algorithm. Have also used LZ4 and Zlib Algorithms included in my proj library.)

I have compiled the my solution in VS2010 with Linker->system->Minimum Required Version as 5.0.

Previously, i was getting an error saying, Invalid Win32 application which got solved by applying the above Configuration Change in VS2010.

Now, i am struck with this error "Procedure entry point for Decode pointer cannot be located in Kernel32.dll". Is there a way i can compile my solution, so that i can skip this error. ?

Thanks,
Sajith

Thanks Aswin, I tried the same , still had issues.

And one more information, as u asked, the variable that i am calling is a local variable of the calling function

Hi, the same call from another function works fine, when i call it from the second function, the ACCESS_VIOLATION comes in, in all the ways, both call is similar, but fails in the second. Not able to find the reason for crash, it was weird.

@Stefan_Lang, It was not the NULL pointer i was passing to, have verified the same.

Thanks All, i finally got it fixed, i changed setStringValue to take char * as argument.
char *buff;
void setStringValue(char *buffText)
{
buff = new char[strlen(buffText)+1];
memset(buff, 0, strlen(buffText) +1);
memcpy(buff, buffText, strlen(buffText));
}
Note to delete the buff in the destructor of the class.

class Func2
{
private:
string m_stringTest;
public:
Func2()
{
m_stringTest = "";
}
void setStringValue(string stringText)
{
m_stringTest = stringText;
}
}

Yes it is a std::string

No it is within a DLL,

extern c {

DECLDIR BOOL FUNC1( void *inputMgr, void* sdelegate)
{

Func2 *func = new Func2();
func->setStringVariable(stringvalue);
}
}

If i comment out this setStringVariable Function it is working. setStringVariable just assign the string to member variable of that class.

setStringVariable is in a class as public member, i am calling using the object of the class.

Hi Richard,

I Tried using the similar dll from my 64 bit compilation and got it worked ! When i tried to use the same in 32 bit dll, it fails, DLL opened using dependecy walker to show if it is 32 bit dll and it was!

The Path exist

Here is the code :

wchar_t wbuf[PATH_MAX];
flags = 0; // Unused
to_unicode("D:\\php\\ssleay32.dl", wbuf, ARRAY_SIZE(wbuf));
return LoadLibraryW(wbuf);

Thanks for the response.
Yes, I tried using LoadLibrary(). Now the problem is , when we specify the full path of the dll in the LoadLibrary Function, we get a error saying, Path Not Found. Any Suggestion on this.

I didn't try this out because this had another limitation with my application. But of-course this is also an acceptable solution in general case.

Hi Thanks all. [Jochecn Arndt] your following statement solved my issue " According to the Unicode setting, you must pass 'GetVolumePathNamesForVolumeNameA' or 'GetVolumePathNamesForVolumeNameW' to GetProcAddress()" Thanks.

@ enhzflep that does not seem to help.

Thanks... takeScreenShotPNGToArray worked for me..

Thanks. So what should i do to take the entire screen and how will i save the screenshot to a file?

I feel so, because i dont want my users to launch the application for using and it will restart the machine due to driver installation. I feel it will take the feel out of the user using the product.

Thanks,

Thanks for your suggestion.
But, i feel not to have the check or installation procedure inside my application. I wish to know if there is any thing that is possible using inno script.

Thanks

I feel it would be solvable, if there is an option or flag in inno script equivalent to POST INSTALL FLAG, by which the check box at the finish wizard is hidden and the installation happens just before the finish button is click. Ultimately, the driver installation should be the last step of installation, hidden from the user.

Thanks

Thank u. But i am trying to have the installer as a single executable.