Re: /OPT:REF issues - linker gurus please help - C / C++ / MFC Discussion Boards

David Crow16-Mar-05 2:56

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

CP Blog [^] Development Blog [^]

How to use AddJob and ScheduleJob to print

keven.zheng15-Mar-05 20:19

keven.zheng

15-Mar-05 20:19

my codes like these:

//printer name in buf
if(!OpenPrinter(buf,&handle,NULL)) //open printer
{
MessageBox("Could not open printer","Error",
MB_OK/MB_ICONINFORMATION);
return;
}

DWORD size;
ADDJOB_INFO_1 * info;
DWORD numNeed = 0;
size = 4096;
BOOL bReturn = FALSE;
info=(ADDJOB_INFO_1 *)LocalAlloc((LMEM_FIXED/LMEM_ZEROINIT),size);
//add job into printer
bReturn = AddJob(handle,1,(LPBYTE)info,size,&numNeed);
CString str = "E:\\1.plt";
memcpy(info->Path,str,strlen(str));
info->Path[strlen(str)] = '\0';
bReturn = ScheduleJob(handle,info->JobId);
LocalFree(info);
ClosePrinter(handle);

when i use ScheduleJob to print the file "E:\\1.plt",ScheduleJob return FALSE. I do not know how to use ScheduleJob in my codes.

Help Me!

Using command-line?

dSolariuM15-Mar-05 20:14

dSolariuM

15-Mar-05 20:14

Hi all,
I want to use command-line :
for example:
myfile.exe /f

Best wishes,
Thanks.

Re: Using command-line?

ThatsAlok15-Mar-05 20:20

ThatsAlok

15-Mar-05 20:20

Use GetCommandLine() api to get current Commandline argument of program.

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

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

Re: Using command-line?

David Crow16-Mar-05 3:02

David Crow

16-Mar-05 3:02

In addition to GetCommandLine(), there's also the __argc/__argv pair.

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

How to detect Change

ThatsAlok15-Mar-05 20:05

ThatsAlok

15-Mar-05 20:05

Some time back i come across an api which notify the application about registry change, but due HUMAN NATURE Smile | :)

of forgeting thing at time they urgently required..... I too forget that api!!!

is any body remember that api!!!?

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

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

Re: How to detect Change

ThatsAlok15-Mar-05 20:23

ThatsAlok

15-Mar-05 20:23

After Long search in MSDN i got it .....

RegNotifyChangeKeyValue

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

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

Enumerate IE windows using Shell fails in WH_JOURNALRECORD hook

Girish Iyer15-Mar-05 19:54

Girish Iyer

15-Mar-05 19:54

Hi,
I am trying to call the following code within a WH_GETMESSAGE hook procedure and it works fine. But the same piece of code fails inside a WH_JOURNALRECORD hook procedure. Can anyone help me in this regard. Confused | :confused:

void EnumIE()
{ CoInitialize( NULL );
SHDocVw::IShellWindowsPtr spSHWinds;
spSHWinds.CreateInstance(__uuidof(SHDocVw::ShellWindows));

long nCount = spSHWinds->GetCount();

IDispatchPtr spDisp;
for (long i = 0; i < nCount; i++)
{ _variant_t va(i, VT_I4);
spDisp = spSHWinds->Item(va);

SHDocVw::IWebBrowser2Ptr spBrowser(spDisp);
if (spBrowser != NULL)
{ MSHTML::IHTMLDocument2Ptr spDoc(spBrowser->GetDocument());
if (spDoc != NULL)
{ HWND hWnd = NULL;
spBrowser->get_HWND ((long*)(&hWnd));
}
}
}
CoUninitialize();
}

Catching STL exceptions

PrashantJ15-Mar-05 19:53

PrashantJ

15-Mar-05 19:53

Hi,

Can anybody share some ideas on how to catch STL exceptions in a C++ code.
I would appreciate if some pseudocode or a link is provided with regard to this.

Thanks,
JOE

Re: Catching STL exceptions

markkuk16-Mar-05 0:09

markkuk

16-Mar-05 0:09

#include <exception>
#include <iostream>
// ...
try {
// code that may throw an STL exception
}
catch (const std::exception &err) {
    std::cerr << err.what() << std::endl;
    // more error handling
}

WCSTOMBS

sunit515-Mar-05 19:45

sunit5

15-Mar-05 19:45

ALOK
I HAVE A XML WHOSE XMLDOMDocumentPtr IS pIDomOutDoc.

wchar_t *wcstr=pIDomOutDoc->xml;
//pIDomOutDoc->xml; returns the xml in unicode

out_XML= (char *)malloc( MB_CUR_MAX);
//out_XML STORES THE OUTPUT
wcstombs(out_XML,wcstr,MB_CUR_MAX);
::AfxMessageBox(out_XML);
BUT I AM NOT GETTING CORRECT OUTPUT.THE RESULT PRINTED OUT IS SOMETHING LIKE <yyyy>yyyy

Re: WCSTOMBS

sunit515-Mar-05 19:54

sunit5

15-Mar-05 19:54

alok

sorry to disturb u. i did it .i replace the MB_CUR_MAX BY CHAR[1000].BUT I WANT TO MAKE IT INDEPENDENT OF THE SUBCRIPT VALUE.

Re: WCSTOMBS

ThatsAlok15-Mar-05 20:15

ThatsAlok

15-Mar-05 20:15

do this way

USES_CONVERSION;

  TCHAR* out_XML=W2T(pIDomOutDoc->xml);
   
//check for bad string atleast 1 Byte
  if( IsBadStringPtr(out_XML,1))
  {
    MessageBox("String is not conversted");
  }
else
  {
   MessageBox(out_XML,"String");
  }

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

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

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

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