HttpOpenRequest problem - C / C++ / MFC Discussion Boards

16-Mar-05 2:21

hello to all members

i am making vc++ desktop service application. this application communicate with clients on the port 3310.

i want to exchange data through SOAP objects. how can my service read and

reponse to client using SOAP.

i am new in vc++ services so i don't know how to handle this type of programming. please help me to sortout my problem.

Plz Help
thanks in advance.

ankit

Error regarding C++ DLL

Amarelia16-Mar-05 2:19

Amarelia

16-Mar-05 2:19

Hi
I have downloaded AESLib-3.1.zip from URL : http://www.copera.com/AESLib/

In that there is one file called AESLibARMlet.c in which last portion is like

------------------------------
#ifndef WINDLL
#ifndef __USE_THUMB__
void setr10(void* gotP)
{
asm ("mov r10, r0");
}
#else
void setr6(void *gotP)
{
asm ("mov r6, r0");
}
#endif
---------------------------

Now when I try to include all this files into my own DLL file and compile it, it gives one warning which is :

\aeslibarmlet.c(254) : warning C4013: 'asm' undefined; assuming extern returning int

Any idea why this error occurs? though I have included all the header files which needed. Also I have searched for function "asm" into all files but it exist no where.....so what should I do....to remove this error....

Plz Help me, It's urgent

MacCloony

Re: Error regarding C++ DLL

David Crow16-Mar-05 2:54

David Crow

16-Mar-05 2:54

Amarelia wrote:
\aeslibarmlet.c(254) : warning C4013: 'asm' undefined; assuming extern returning int

Try __asm instead. I don't think the parenthesis, quote marks, or semicolon are needed.

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

Re: Error regarding C++ DLL

Amarelia16-Mar-05 17:52

Amarelia

16-Mar-05 17:52

Thankx a lot
I tried removing parenthesis, quote marks, semicolon and also __asm. but it's not working and showing error as :

c:\wrkspace\vc++\xyztools\aeslibarmlet.c(255) : error C2415: improper operand type

Any idea why it happens ?

Plz

Thankx in advance

Amarelia Maehsh
Gujarat
India

Re: Error regarding C++ DLL

David Crow17-Mar-05 3:21

David Crow

17-Mar-05 3:21

Amarelia wrote:
c:\wrkspace\vc++\xyztools\aeslibarmlet.c(255) : error C2415: improper operand type

Any idea why it happens ?

Without seeing the actual code, I'm afraid not. My first guess is that the r10, r0, and r6 operands are unknown to the compiler. They don't look Intel-ish to me.

What exactly are you trying to accomplish?

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

Re: Error regarding C++ DLL

Alexander ^M.,17-Mar-05 6:33

Alexander ^M.,

17-Mar-05 6:33

They are "intel-ish"!. These are x86-86 registers, like RAX, EBX, ...
The Microsoft x86-64 compiler does not support x86-64 inline assembler yet!

Don't try it, just do it! Wink | ;-)

Re: Error regarding C++ DLL

Alexander ^M.,16-Mar-05 4:15

Alexander ^M.,

16-Mar-05 4:15

This assembler code is x86-64. As far as I know the x86-64 compiler of Microsoft does not support inline assembler yet.

Don't try it, just do it! Wink | ;-)

HttpOpenRequest problem

gecool16-Mar-05 1:44

gecool

16-Mar-05 1:44

Hi everyone. I need some help on this: I am using wininet funcs to "talk" to a http server. I am opening a root handle with InternetOpen (ret code OK), than I call Internetconnect (ret code OK). I am openning then a request handle, with HttpOpenRequest:

	<br />
void CfileURL::OpenRequest()<br />
{<br />
        LPCTSTR lpszVerb = "GET";<br />
	LPCTSTR lpszObjectName = "/avcenter/venc/data/w32.kelvir.c.html";<br />
	LPCTSTR lpszVersion = NULL;			// Use default.<br />
	LPCTSTR lpszReferrer = NULL;		// No referrer.<br />
	LPCTSTR lplpszAcceptTypes =("Accept : */* ""Accept-Ranges: bytes");<br />
	DWORD dwOpenRequestFlags = INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTP |<br />
		INTERNET_FLAG_IGNORE_REDIRECT_TO_HTTPS |<br />
		INTERNET_FLAG_KEEP_CONNECTION |<br />
		INTERNET_FLAG_NO_AUTH |<br />
		INTERNET_FLAG_NO_AUTO_REDIRECT |<br />
		INTERNET_FLAG_NO_COOKIES |<br />
		INTERNET_FLAG_NO_UI |<br />
		INTERNET_FLAG_RELOAD;<br />
	DWORD dwOpenRequestContext = 0;<br />
<br />
<br />
	m_h_Request = HttpOpenRequest(m_h_URL, lpszVerb, m_URL.object_name, lpszVersion,<br />
		lpszReferrer, (LPCTSTR *) &lplpszAcceptTypes,<br />
		dwOpenRequestFlags, dwOpenRequestContext);<br />
	<br />
//	if (!m_h_Request)<br />
<br />
		DWORD err=GetLastError();<br />
<br />
//*************End HttpOpenRequest****************<br />
	return err;<br />
}<br />

then i make
char ah[] = "Range: bytes=0-30";
bool bResult = HttpAddRequestHeaders(m_h_Request, ah, strlen(ah), HTTP_ADDREQ_FLAG_ADD_IF_NEW);
and then i send the request with HttpSendRequest, to determine if the server accepts bytes range. I get the status code 206 (partial content) (for the server I use) which is ok for me. I close the m_h_Request handle obtain from the previous call to httpopenhandle.

Then I make a new request, to determine the file size:
bool bret = OpenRequest();

bool bResult = HttpSendRequest(m_h_Request, NULL, 0, NULL, 0);
DWORD dwSize = sizeof(DWORD);
DWORD infolevel = HTTP_QUERY_CONTENT_LENGTH | HTTP_QUERY_FLAG_NUMBER;
if (!HttpQueryInfo(m_h_Request, infolevel, &m_dwflen, &dwSize, NULL))
DWORD qi = GetLastError();
then i close the handle m_h_Request (httpopenrequest)
at this point i have determined the file size, which is ok,

BUT
when i try to open a new request with the above function i get ret code 122 which is ERROR_INSUFFICIENT_BUFFER. What i do not understand is why at first two calls OpenRequest returned ok, and now it returns 122.
If anyone can tell me which is the right way to use the httpOpenrequest, handle (should i or i should not close the handle after each request, than open it again for a new request) please do so.

Any help is wellcome.
THANKZ:->

BitBlt fails under Win98SE

Vinaya16-Mar-05 1:26

Vinaya

16-Mar-05 1:26

Hi,

I have an application which sends BMP file data to the printer using BitBlt(). The bitmap data is passed to the printer DC.

if (!BitBlt(m_hdcPrint, nXDest, nYDest, nWidth, nHeight, hdcTemp, 0, 0, SRCCOPY))<br />
{<br />
... Report error<br />
}

My application works fine under Win XP/2000, but fails under Win 98SE. Can anyone help me in this? My printer supports BitBlt(). I am checking it with GetDevCaps().

If I make the application to give a TextOut(), it works fine. The LineTo() function also fails. Frown | :(

Kindly help me.

Thanks

Vini

Extra memory for CEdit

Member 160732616-Mar-05 1:11

Member 1607326

16-Mar-05 1:11

Does anybody know how to add memory to a read only CEdit ?

Re: Extra memory for CEdit

ThatsAlok16-Mar-05 1:54

ThatsAlok

16-Mar-05 1:54

timoriss wrote:
Does anybody know how to add memory to a read only CEdit ?

Why do u need Extra Memory Buddy!!!, What the real problem are you facing!!

[Vote One Here, Complete my Survey....]

Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

Re: Extra memory for CEdit

Member 160732616-Mar-05 2:04

Member 1607326

16-Mar-05 2:04

the real problem -
I use an object called "CEditEx" (available also in this side i reckon), as a terminal for serial communication with some device. Anyway - after filling 200 lines, i have the following code that maintain the history :

if(mainWnd->m_textBoxOut.GetLineCount() > 200) {
textBegin = mainWnd->m_textBoxOut.LineIndex(1);
mainWnd->m_textBoxOut.SetSel(0,-1);
mainWnd->m_textBoxOut.GetWindowText(entireText);
entireText = entireText.Right(entireText.GetLength()-textBegin);
mainWnd->m_textBoxOut.ReplaceSel(entireText);
}

Where "m_textBoxOut" is the CEditEx object and "textBegin" is an integer for keeping an index.

THE PROBLEM is that when executing this code, the display of the CEdit object flashes (since it re-writes itself).

Any idea ?
Thanks
Timor

Re: Extra memory for CEdit

David Crow16-Mar-05 2:56

David Crow

16-Mar-05 2:56

timoriss wrote:
THE PROBLEM is that when executing this code, the display of the CEdit object flashes (since it re-writes itself).

How about CWnd::SetRedraw()?

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

Re: Extra memory for CEdit

Manfred Staiger16-Mar-05 2:11

Manfred Staiger

16-Mar-05 2:11

How about using CRichEdit ?

MS

Re: Extra memory for CEdit

Member 160732616-Mar-05 2:15

Member 1607326

16-Mar-05 2:15

what are the benefits of using "CRichEdit" ?

Re: Extra memory for CEdit

Manfred Staiger16-Mar-05 2:21

Manfred Staiger

16-Mar-05 2:21

CEdit can only keep 64k, CRichEdit is unlimited, but in the meantime I saw that this is not your problem.

MS

Re: Extra memory for CEdit

Member 160732616-Mar-05 2:24

Member 1607326

16-Mar-05 2:24

thanks anyway

Detecting a desktop switch

Ryan Binns16-Mar-05 0:43

Ryan Binns

16-Mar-05 0:43

Does anyone know of a way of detecting when a desktop switch has occurred? I'm not talking about terminal servies (WM_WTSSESSION_CHANGE will do that), but a simple single-user desktop switch. There's an API to do the switch (SwitchDesktop()), but there doesn't seem to be any way of detecting that it has occurred when someone else does the switch.

I've used Spy++ to look at every single message sent to my app while I do a switch, and there doesn't seem to be anything unusual, just a bunch of WM_ACTIVATE, WM_ACTIVEAPP, WM_WINDOWPOSCHANGING (but not WM_WINDOWPOSCHANGED however) messages. Nothing extraordinary there. The only thing I saw I wasn't expecting was that the cx and cy fields in the WINDOWPOS structure were both set to -1, although SWP_NOSIZE was also set, so they would be ignored anyway.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

/OPT:REF issues - linker gurus please help

Spiritofamerica16-Mar-05 0:36

Spiritofamerica

16-Mar-05 0:36

hello

I have a problem

when I link my program in Release Mode I get some crazy

linker warnings like this:

LINK : warning LNK4089: all references to "ADVAPI32.dll"

discarded by /OPT:REF
LINK : warning LNK4089: all references to "SHELL32.dll"

discarded by /OPT:REF
LINK : warning LNK4089: all references to "comdlg32.dll"

discarded by /OPT:REF

and because of them some features of my program(namely all

functions that have something to do with wininet.h) don't

work any more.

In Debug mode anything works ok.

I see that some com objects that I use get this /OPT:REF

thing going whenever I call some methods because if I put

this in comments it works

what is this /OPT:REF thing?
anyway I can turn of this/OPT:REF thing??

Re: /OPT:REF issues - linker gurus please help

Ryan Binns16-Mar-05 0:45

Ryan Binns

16-Mar-05 0:45

There's no problems there. That's just saying that you told the linker to link to these libraries, but you didn't actually use anything from them, so the linker is not including them.

To remove the warnings, remove the libraries from the linker setup of your project settings, but there's really no need to. They're just information anyway.

Ryan

"Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact"

Re: /OPT:REF issues - linker gurus please help

Anonymous16-Mar-05 21:55

Anonymous

16-Mar-05 21:55

I only include one library wininet.lib but if I remove it all the functions from wininet.h don't work

I have no other librabies linked

I am using MFC support in a static library

VC++ Chatting Program

niruban15-Mar-05 23:57

niruban

15-Mar-05 23:57

hi every one,
i am reading VC++ and want to know that which and what are the important concepts in VC++.how to learn that...

Re: VC++ Chatting Program

David Crow16-Mar-05 3:00

David Crow

16-Mar-05 3:00

Is this a trick question? All concepts are important. Learn the language as a whole.

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

DCom

pardis15-Mar-05 20:44

pardis

15-Mar-05 20:44

Hi all
when i type( CoCreateInstanceEx() , it shows me the parameters , but when i compile it, gives an error "CoCreateInstanceEx is not a member of global namespace" and "undeclared identifer". i attached the <atlbase.h>. with cocreateInstane , it works(visual c++6).
thank you very much

Re: DCom

Michael P Butler16-Mar-05 11:17

Michael P Butler

16-Mar-05 11:17

From MSDN

"You must include the #define _WIN32_DCOM preprocessor directive at the beginning of your code to be able to use CoCreateInstanceEx."

Hope this helps,

Michael

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