C / C++ / MFC Discussion Boards

Christian Graus23-Jul-05 13:52

23-Jul-05 13:52

inline is a suggestion to your compiler, it's not obliged to take your advice. I'm not sure if the compiler is allowed to inline without the keyword, though.

Christian Graus - Microsoft MVP - C++

Re: Function call overhead

Jose Lamas Rios23-Jul-05 15:03

Jose Lamas Rios

23-Jul-05 15:03

Christian Graus wrote:
I'm not sure if the compiler is allowed to inline without the keyword, though

It is, if you specify /Ob2.

Quoting from MSDN:

/Ob2 Expands functions marked as inline or __inline and any other function that the compiler chooses (expansion occurs at the compiler's discretion, often referred to as auto-inlining).

/Ob2 is in effect when /O1, /O2 or /Ox is used.

This option requires that you enable optimizations using /O1, /O2, /Ox, or /Og.

--
jlr
http://jlamas.blogspot.com/[^]

Re: Function call overhead

Christian Graus23-Jul-05 15:05

Christian Graus

23-Jul-05 15:05

I thought that was the case in general, but could not remember exactly, hence my comment surrounded by caveats...

Christian Graus - Microsoft MVP - C++

Re: Function call overhead

Gary R. Wheeler24-Jul-05 3:56

Gary R. Wheeler

24-Jul-05 3:56

I believe that the inline keyword has no effect when you are compiling for debug.

Also, the compiler treats inline only as a suggestion, not as a requirement. This means that if the function is large enough, is called in a lot of places, or some combination of the two, it may decide to not generate code for it inline.

Software Zen: delete this;

Please help ...

yaniv_av23-Jul-05 11:13

yaniv_av

23-Jul-05 11:13

Hi,

I'm tring to control ICQ from a small external MFC app.
I'm doing it with Spy++ to identify the massages related to the action I want to simulate, and then sending those massages to the ICQ contorls with PostMassage function.

Now, my problem is - how to control the TreeList control (with the pepole names) within ICQ ?
What I want to do, is to open a chat window for each of the members in the list control... In the ICQ it's done by double-clicking on the user-name in the list control. but I didn't succses to understand how to do it manually with Windows-massages....

Actually, that question is related not specifically to controlling ICQ, but in general to remote control a treelist control in WINDOWS.

10X !

Re: Please help ...

Alexander ^M.,24-Jul-05 3:26

Alexander ^M.,

24-Jul-05 3:26

I'm not even sure if the user list control is a tree view. The only way to find out how to remote control it is Spy++ or other monitoring software.
You have to monitor all the messages that are sent to the control, find out what parameters they have, how they work, ..., and so you will be able to get a handle to the list control from your application and send messages yourself.
It could take some time, but that is the way I'd prefer.

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

WINCE: IID_IPIEHTMLDocument

Member 120469923-Jul-05 7:44

Member 1204699

23-Jul-05 7:44

Hello,

I try to use the following code in the MS-Sample: "Browse".

SendMessage(hwndHTML, DTM_DOCUMENTDISPATCH, 0, (LPARAM) &pDisp);

pDisp->QueryInterface(IID_IPIEHTMLDocument, (void**)&pHTMLDocument);

but I get the Link error:

LNK2001: unresolved external symbol IID_IPIEHTMLDocument

Requirements
Pocket PC: Windows Mobile 2003 and later
Smartphone: Windows Mobile 2003 and later
OS Versions: Windows CE .NET 4.2 and later
Header: htmlctrl.h
Library: htmlctrl.lib <- This wrong - this file doesn't exist. I think it must be htmlview.lib.

I use the following lib files

aygshell.lib
htmlview.lib
gx.lib
webview.lib

I get the Link-Error with C++ 4.0 and with Visual Studio 2005.

What is wrong ?

Thank you for your help.

Thomas

TJ

Drawing Lines

merkit23-Jul-05 7:21

merkit

23-Jul-05 7:21

I (and a couple of other people I have found out) have asked how to draw lines in RichEditView/RichEditCtrl. So far, no one has been able to answer the question. Anybody got an idea of how to do it?

Re: Drawing Lines

X Balanque23-Jul-05 8:49

X Balanque

23-Jul-05 8:49

Subclass the control using SubclassWindow, then handle the WM_PAINT message and draw your lines there.However you might need to handle some additional messages as well as scrolling, resizing, etc. could be involved.
Hope this helps.

Re: Drawing Lines

merkit23-Jul-05 9:47

merkit

23-Jul-05 9:47

I am using the RichEditView/Doc architure. I am using it so I can use formating as well as use the EN_LINK messaging. Will this interfer with the message handling in the RichEditCtrl?

Re: Drawing Lines

X Balanque23-Jul-05 10:38

X Balanque

23-Jul-05 10:38

Not if you are going to call DefWindowProc. Actually you will need to call this function because you will want first the RichEdit to display normally and after that make your changes.

Re: Drawing Lines

merkit23-Jul-05 16:56

merkit

23-Jul-05 16:56

I haven't work with subclasses in this way. Can you point me to info on how to use it? I tried help in Visual Studios but its as clear as mud. Thanks for the help.

copying a function as a whole from one c++ file to another

fox_mulder_fbi23-Jul-05 4:26

fox_mulder_fbi

23-Jul-05 4:26

plzz help.
how a can i write a program to copy function (as a whole) from one c++ file to another c++ file ,(appending to its end)
the inputs of the programe shoid be source file name,function name and destination file name.

Re: copying a function as a whole from one c++ file to another

sunit523-Jul-05 5:26

sunit5

23-Jul-05 5:26

iS CopyFile function of any use

Re: copying a function as a whole from one c++ file to another

John M. Drescher23-Jul-05 7:33

John M. Drescher

23-Jul-05 7:33

It should not be. He wants to copy part of one file to a second file.

John

Re: copying a function as a whole from one c++ file to another

X Balanque23-Jul-05 8:57

X Balanque

23-Jul-05 8:57

You will most likely need to write a simple parser that can identify the location of the function in the cpp file. You can use tools like yacc, bison. Or, if you know the signature of the function (return type, type and no. of params) just search for a regular expression that will match.

Re: copying a function as a whole from one c++ file to another

arshadthegreat25-Jul-05 20:35

arshadthegreat

25-Jul-05 20:35

i did it in the following way and it worked.
but the problem is how to add the file header attached with the
function .this comes befeore the function
eg.
///////////////////////////////////////////////////////////////////////////////
//
// history=...........etc
///////////////////////////////////////////////////////////////////////////////

#include <afxwin.h>
#include<fstream>
#include<conio.h>
#include<stdio.h>
#include <stdlib.h>
#include <string>
#include <iostream>
using namespace std;
void main()
{
CStdioFile csf("E:\\lastfunc\\ii.cpp",CFile::modeRead);
CStdioFile csg("e:\\cc.cpp",CFile::modeNoTruncate|CFile::modeCreate|CFile::modeWrite);
csg.SeekToEnd();
CString str;
while(csf.ReadString(str))
{
if (str.Find("SetupTls",0)>=0)
{
int i=0;
cout<<str.getbuffer(str.getlength());
csg.writestring(str+"\n");
="" do="" {
="" if(csf.readstring(str))
="" if(str.find("{")="">=0)
{
i++;
}
if(str.Find("}")>=0)
{
i--;
}
cout<<cout<<str.getbuffer(str.getlength())<<'\n';
csg.writestring(str+"\n");
="" }
=""
="" }="" while(i="">0);
}
}
csf.Close();
csg.Close();

}

difference`

Usman Tasleem Akshaf23-Jul-05 3:42

Usman Tasleem Akshaf

23-Jul-05 3:42

i would like to know what is the difference between ftp and internet component download service.Difference

Be FaithFull To Your Work.

Re: difference`

Alexander ^M.,24-Jul-05 3:28

Alexander ^M.,

24-Jul-05 3:28

FTP = File Transfer Protocol (RFC959)
MSICD = Microsoft Internet Component Download = "system service for downloading and installing software from Web sites on the Internet and intranets" = SOFTWARE!!

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

automatically save a voice file

Nilegna23-Jul-05 3:19

Nilegna

23-Jul-05 3:19

i've hav the code to record voice using vc++ code.i dont knw how to go abt saving the file automatically as a part of the same project.can somone help me out?

Nilegna

Re: automatically save a voice file

Alexander ^M.,24-Jul-05 3:30

Alexander ^M.,

24-Jul-05 3:30

Create a wave header, save it to a .wav file, write the audio data captured from the record device, and when recording is finished you only have to write a new file size to the wave header.
I thing there are some articles about creating .wav file on CodeProject. Have a look at them.

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

Write Data in the Registry using a Setup-Project

gabriel.fischer23-Jul-05 1:58

gabriel.fischer

23-Jul-05 1:58

I created a Setup-Project for my c++/MFC-proramm. It works fine an I can write "static" data to the registry which I defined in the project.
But I want write some more information in the registry which I want to define during the installation-process. I don't know, how to write for example the installation path in the registry, because I only can define fix data in the setup-project.
thanks for help
Gabriel

saving value selected in combobox before OK selected

sayup23-Jul-05 0:30

sayup

23-Jul-05 0:30

hello,
I have a combo box with edit list of numbers 3,4,5.I then have 5 edit boxes.Depending on number chosen in combobox i immediately want the same number of edit boxes to be enabled(I have made them disabled while creating).
This functionality should be made available immediately before OK button on dialog is clicked.I tried using ON_CBN_EDITCHANGE,ON_CBN_SELENDOK message handler but it doesnt work...

help urgently

thanks

Re: saving value selected in combobox before OK selected

Christian Graus23-Jul-05 2:53

Christian Graus

23-Jul-05 2:53

The event for selection changed is the one you want, surely ? CBN_SELCHANGED

Christian Graus - Microsoft MVP - C++

ShowWindow()?

ddmcr22-Jul-05 22:24

ddmcr

22-Jul-05 22:24

Hi guys,
I have a strange problem , i have the next code :
i have a global variable CWnd* pWnd;

CMyClass::OnBnClickedBtn1()
{
pWnd = FindWindow("Shell_TrayWnd",NULL);
pWnd = ShowWindow(SW_HIDE);
//as you see i am only hiding the Taskbar
}

and

CMyClass::OnBnClickedBtn2()
{
pWnd->ShowWindow(SW_SHOW);
//Her i am restoring the Taskbar
}

I manage to hide and show the taskbar without problems,
but after that such problem appears : For example i have several windows open and their buttons appear on the Taskbar and when i click on any of the buttons on the Taskbar it's window does not get the focus(does not show up)??
The problem is in ShowWindow(SW_HIDE) , if i remove it then everything works fine ,but i need to hide the taskbar.
Can anyone help??

Regards,

"Success is the ability of going from one failure to another with no loss of enthusiasm" - W.Churchill

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