Problems with destroying a dialog box - C / C++ / MFC Discussion Boards

Re: Hi help me to run my codeservice mode

usha_dolly6-Dec-05 1:32

6-Dec-05 1:32

LPCTSTR name123 = "sangaraju" ;
SC_HANDLE hSCManager =( OpenSCManager(NULL,NULL,SC_MANAGER_CREATE_SERVICE));
SC_HANDLE hi = OpenService(hSCManager,name123,SERVICE_ALL_ACCESS );
SC_HANDLE hSCreate = CreateService(SCManager,name123,name123 ,SERVICE_ALL_ACCESS,
SERVICE_WIN32_OWN_PROCESS,SERVICE_AUTO_START,SERVICE_ERROR_IGNORE,
"\"d:\\Shu.exe\"",NULL,NULL,NULL,NULL,NULL);
and then Closed the services......

Opened the Windows services

i found Startup type = automatic , and status is empty
But when iam trying to start in the servics , Error which iam getting is

Error 1053 : " The service did not respond to the start or control request in timly fashion"

Please help me Kakan.......

Thanks in advance

Re: Hi help me to run my codeservice mode

kakan6-Dec-05 2:09

kakan

6-Dec-05 2:09

Hello.

Your servce code has to respond on different messages, such as start, stop, pause e.t.c.
As well as responding to queries from the OS...

I think you will have to do your homework on this one (study), or (quicker, i think). Follow the advice from ThatsAlok and check out XYNTService.
Use it as it is or study the code. It's very informational (Is that an English word? Smile | :)

)

Kakan

Re: Hi help me to run my codeservice mode

ThatsAlok6-Dec-05 2:34

ThatsAlok

6-Dec-05 2:34

kakan wrote:
It's very informational (Is that an English word? )

look like to be Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: Hi help me to run my codeservice mode

kakan6-Dec-05 2:57

kakan

6-Dec-05 2:57

It felt good when I wrote it. But then I began to wonder.
Anyway, as long as the reader gets the message, anything goes (as far as I'm concerned) WTF | :WTF:

rvice modehi help me

usha_dolly6-Dec-05 0:25

usha_dolly

6-Dec-05 0:25

Help to run my project in Se

dil

Re: rvice modehi help me

ThatsAlok6-Dec-05 0:43

ThatsAlok

6-Dec-05 0:43

usha_dolly wrote:
Help to run my project in Se

I believe you want to run your program as service. This link will help :-
http://www.codeproject.com/system/xyntservice.asp[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

-- modified at 6:45 Tuesday 6th December, 2005

Re: rvice modehi help me

toxcct6-Dec-05 2:14

toxcct

6-Dec-05 2:14

usha_dolly wrote:
Help to run my project in Se

this doesn't mean anything for me... Frown | :(

what's that ?
is it a question ? where is the punctuation ? where is the verb ?
even the thread subject is not clear : "rvice modehi" WTF | :WTF:

hey dude, telling you want some help don't indicate us what sort of help you need...

you really need to see this[^] before continuing of the forum Suspicious | :suss:

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20]

Problems with destroying a dialog box

caykahve6-Dec-05 0:24

caykahve

6-Dec-05 0:24

I create another dialog box from my main dialog box. I want to show it and remove it when i want, without the user's will. I call the show function and the remove function from different places, and 90% I am able to remove it. For the other 10% I tried calling DestroyWindow() to remove, or calling it in the class destructor. I also tried overriding PostNcDestroy() and calling CDialog::PostNcDestroy() inside, etc. OnDestroy(), PostNcDestroy() and OnNcDestroy() are called respectively, but I keep seeing the dialog box, it is not removed. Can someone please help me? How can I destroy it properly?

Thanks in advance

To show:

pOtherBox = new COtherBox();<br />
BOOL ret = pOtherBox->Create(IDD_OTHERBOX, this);<br />
<br />
pOtherBox->SetWindowPos(&this->wndTopMost,<br />
      left,top,width,height,<br />
      SWP_NOREPOSITION|SWP_NOSENDCHANGING|SWP_NOACTIVATE|SWP_SHOWWINDOW);

To remove:

if(pOtherBox!=NULL)<br />
{<br />
   delete pOtherBox;<br />
   //pOtherBox->DestroyWindow(); //also tried instead of delete<br />
   pOtherBox = NULL;<br />
}

Re: Problems with destroying a dialog box

David Crow6-Dec-05 4:09

David Crow

6-Dec-05 4:09

To dismiss the modeless dialog box, simply call:

pOtherBox->DestroyWindow();

And also implement:

void COtherBox::PostNcDestroy()
{
    delete this;
}

"Take only what you need and leave the land as you found it." - Native American Proverb

how to get window handle pls

shadrach_india5-Dec-05 23:54

shadrach_india

5-Dec-05 23:54

Re: how to get window handle pls

ThatsAlok6-Dec-05 0:54

ThatsAlok

6-Dec-05 0:54

gpswamy wrote:
how to get window handle pls

In MFC :-

AfxGetApp()->GetSafeHwnd();

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Re: how to get window handle pls

Rajesh R Subramanian6-Dec-05 1:30

Rajesh R Subramanian

6-Dec-05 1:30

In MFC, If you need the window handle of the current window, then it is m_hWnd

Regards,
Rajesh R. Subramanian

You have an apple and me too. We exchange those and We have an apple each.
You have an idea and me too. We exchange those and We have two ideas each.

Reading text file using ifstream

grero5-Dec-05 23:43

grero

5-Dec-05 23:43

Hi,
I am trying to read data from a textfile, but I can't seem to open the file. Here's the code I use:

<code>void fileOperator::openInputFile(const wchar_t *fname)
{
	inFile.open(fname, std::ios_base::in);
	if(!inFile.is_open() ) 
	{ 
		printf("File could not be opened\n");
		exit(1);
	}
}</code>

I get no error messages from the compiler, but when I run the program, I get the "File could not be opened" error. I have checked that the program and the textfile are in the same directory. This should be the simplest thing and I'm practically tearing my own hair out trying to figure it out. Please help!

Roger

Re: Reading text file using ifstream

toxcct5-Dec-05 23:56

toxcct

5-Dec-05 23:56

is the function called with a valid file path as a parameter ??
what happens if changing fname from const wchar_t* to const char* ?
where is defined inFile ? is it well initialized ?

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20]

Re: Reading text file using ifstream

grero6-Dec-05 0:12

grero

6-Dec-05 0:12

Hi,
Sorry, here is the definition for the class I'm using:

#include <stdio.h>
#include <fstream>
#include <vector>
#include <ios>

class fileOperator {
protected:
	<
	std::ifstream inFile;
	std::ofstream outFile;

public:
	fileOperator() {};
	void openInputFile(const wchar_t *fname);
	void openOutputFile(const wchar_t *fname) {};
	void readMatrix(int numberOfColumns, double **matrix);
};

Using const char* was my first thought too, but my compiler doesn't seem to like it. It claims ifstream::open only accepts wchar_t* as its argument. Here's the compiler error I get:

.\fileTest.cpp(8) : error C2664: 'fileOperator::openInputFile' : cannot convert parameter 1 from 'char *' to 'const wchar_t *'
Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

There might be some blindingly obvious thing I'm missing here as I'm fairly new to C++ Smile | :)

Roger

Re: Reading text file using ifstream

toxcct6-Dec-05 1:10

toxcct

6-Dec-05 1:10

you have to either wass it a char* string and to change the function prototype !!!

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20]

Re: Reading text file using ifstream

grero6-Dec-05 1:29

grero

6-Dec-05 1:29

Sorry about that, with the function prototype changed to char*, the code compiles of course, but I still can't open the file...

Roger

Re: Reading text file using ifstream

kakan6-Dec-05 0:02

kakan

6-Dec-05 0:02

"wchar_t *fname"?
You might considder "char * fname"?

Or a UNICODE build?

Re: Reading text file using ifstream

S. Senthil Kumar6-Dec-05 4:10

S. Senthil Kumar

6-Dec-05 4:10

Does the path to the file look like this ?

const char *path = "C:\Test\TestFile.txt";

If that's true, then you need to escape the \ character by addding another \. Like

const char *path = "C:\\Test\\TestFile.txt";

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: Reading text file using ifstream

grero6-Dec-05 8:28

grero

6-Dec-05 8:28

Hi,
Sorry, I'm not using the full path. The file I'm trying to read is in the same directory as the program itself. I tried using full path with the double \\, but to no use. The file still won't open.

Roger

mmx vs. floating point

9ine5-Dec-05 23:38

9ine

5-Dec-05 23:38

I need to get my floating points calculation to run faster, the floating point numbers stored in instances of some class in vector<class> array I just need to multiply them and add result:

class{
float val1;
float val2;
};

for(i=0; i<size; i++)
="" res="" +="class[i]-">val1 * class[i]->val2;

will it be faster to store floating numbers from vector massive to plain floating array

float *ar1, *ar2;
for(i=0; i<size; i++)
="" ar1[i]="class[i]-">val1;
ar2[i] = class[i]->val2;

and then perform mmx calculations or memory moving ops will take also some time so there will be no significant speed increase? Or will it be faster to use compound intrinsics to load floating numbers to float[4] and then perform multiplication?

If some one encountered similar problem?

9ine

Re: mmx vs. floating point

C^hris L^osinger6-Dec-05 2:11

C^hris L^osinger

6-Dec-05 2:11

9ine wrote:
perform mmx calculations

MMX instructions are all integer-based, so they can't help you at all with floating point calcs.

Cleek | Image Toolkits | Thumbnail maker

Re: mmx vs. floating point

9ine6-Dec-05 3:02

9ine

6-Dec-05 3:02

I know about mmx, by this word I mean all multemedia extensions, it is SSE with floating points which I wonder about for my application if you need me to be more exact.
I can do it my self easely but dont want to waste time if some one done it before an got speed improvement, which I mean:

timemmx = [mem move from classes in vector<> array] + [SSE ops]
timefloat = [standart floating multiplications]

timemmx << timefloat! ??

Otherwise I will need to make much bigger changes in my code to get floating values from my vector<class> to align them in memory, which I'm reluctant.

9ine

Re: mmx vs. floating point

C^hris L^osinger6-Dec-05 4:03

C^hris L^osinger

6-Dec-05 4:03

i'm not sure anyone could say for sure without actually trying.

but, items in a vector are stored contiguously in memory, so you can treat them as a plain C++ array. (this is part of the 2003 C++ standard, IIRC - and all implementations store data that way regardless). so, you should be able to load the SSE registers directly from the contents of your vector.

Cleek | Image Toolkits | Thumbnail maker

Re: mmx vs. floating point

9ine7-Dec-05 3:40

9ine

7-Dec-05 3:40

actually not the floating points are stored in vector but class instances with floating numbers

class CTest
{
public:
CTest();
~CTest();

float val1;
float val2;
}

and we get this vector<CTest *> array and we need to

for(i=0; i<array.size(); i++)
res += array[i]->val1 * array[i]->val2;

if we can try it keeping in mind that data in vector is stored lineary hence val1 and val2 stored with the same stride in memory?

9ine

-- modified at 9:42 Wednesday 7th December, 2005

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