C / C++ / MFC Discussion Boards

MFC: Easier way to know which Edit Control has the focus?

Davex_11-Mar-04 16:42

11-Mar-04 16:42

Hi,

In my program, I have 56 Edit Controls where I can type the names of 56 players. Presently, I'm using ON_EN_SETFOCUS for every Edit Control to set an INT variable that tells me which Edit Control has the focus. When I want to print, delete or view the result of the player in focus, I check the variable and than print or delete the good player.

Is there an easier way to know the ID of the Edit Control in focus? Like when I want to print a player's results, just get the Edit Control ID in focus at this moment, compare the ID and identify the player.

Here's a sample of my code:

....
ON_EN_SETFOCUS(IDC_NAME13, OnEnSetfocusName13)
ON_EN_SETFOCUS(IDC_NAME14, OnEnSetfocusName14)
END_MESSAGE_MAP()

void CMainView::OnEnSetfocusName14()
{
PlayerInFocus = 14;

}

What I would like to do:

void CMainView::OnPrintPlayer()
{
Get the control ID in focus

if(Control ID == 14)
Print Player 14

else if(Control ID == 15)
Print Player 15

else if ...
}

Thanks
Dave

Re: MFC: Easier way to know which Edit Control has the focus?

GDavy11-Mar-04 21:41

GDavy

11-Mar-04 21:41

just make sure your resource ID`s are in consecutive
eg
IDC_NAME1=21
IDC_NAME2=22
.
.
.
IDC_NAME26=46

and then you could use in messagemap:

ON_NOTIFY_RANGE( NM_SETFOCUS, IDC_NAME1, IDC_NAME26, SetPlayerFocus )
define SetPlayerFocus in header as:
afx_msg void SetPlayerFocus(UINT nid, NMHDR* pNotifyStruct, LRESULT* pResult);

void CMainView::SetPlayerFocus(UINT nid, NMHDR* pNotifyStruct, LRESULT* pResult)
{
m_nPlayerWithFocus = nid - IDC_NAME1 +1 ; //results in 1 for player1 etc...
pResult = 0;
}

void CMainView::OnPrintPlayer()
{
// print whatever you like, m_nPlayerWithFocus contains value of last edit field that had focus
}
I think that should roughly do the trick...

.
.
.
.

other option, maybe even better skip the setfocus function just do:

void CMainView::OnPrintPlayer()
{
CWnd * wndFoc = GetFocus();
if( !wndFoc )
return;

int nCurrentPlayer = wndFoc->GetDlgCtrlID() - IDC_NAME1 +1;
if( 0<nCurrentPlayer && MAX_PLAYERS >=nCurrentPlayer )
PrintResultsFor(nCurrentPlayer);
}

Re: MFC: Easier way to know which Edit Control has the focus?

Roger Allen12-Mar-04 1:23

Roger Allen

12-Mar-04 1:23

As a note, you could use:

CWnd *pFocus = GetFocus();
if (pFocus && pFocus->IsKindOf(RUNTIME_CLASS(CEdit)))
{
UINT id = pFocus->GetDlgCtrlID();
// makse use of the controls id here....

Roger Allen - Sonork 100.10016
Roger Wright: Remember to buckle up, please, and encourage your friends to do the same. It's not just about saving your life, but saving the quality of life for those you may leave behind...

Re: MFC: Easier way to know which Edit Control has the focus?

Davex_12-Mar-04 4:13

Davex_

12-Mar-04 4:13

Thanks a lot, that's exactly what I was looking for!

I'm a beginner, so I'm learning... Smile | :)

Dave

Re: MFC: Easier way to know which Edit Control has the focus?

David Crow12-Mar-04 2:29

David Crow

12-Mar-04 2:29

Maybe I'm missing something, but why can't you just GetFocus()? This will return a CWnd* of the window having the focus.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Menu properties

Member 80845911-Mar-04 16:37

Member 808459

11-Mar-04 16:37

Hi all,

For example &File. If you press Alt + 'F' the file menu opens. ... I would like the underline to always display

Thanks all

Re: Menu properties

toxcct11-Mar-04 21:40

toxcct

11-Mar-04 21:40

no idea,

in fact, i'm not sure we really can. every App' i use show like you say, and i've never found a way to underline to always display... if only you find the solution, please tell me.

Wink | ;)

TOXCCT >>> GEII power

Re: Menu properties

Bin2Hex11-Mar-04 22:52

Bin2Hex

11-Mar-04 22:52

Are you talking about the way Windows XP hides the underline until you press Alt?

If you are, this is a setting that you can change in the Display Properties (Control Panel -> Display or right-click on the desktop).

There you go to "Appearance", click on "Effects" and unselect the "Hide underlined letters for keyboard navigation until I press the Alt key".

I don't know how to change this from inside a program, but as it is a user's setting, you better keep it as the user choosed it to be.

Re: Menu properties

David Crow12-Mar-04 2:30

David Crow

12-Mar-04 2:30

Bin2Hex wrote:
Are you talking about the way Windows XP hides the underline until you press Alt?

The feature is not exclusive to Windows XP.

Bin2Hex wrote:
I don't know how to change this from inside a program...

Check out the NoChangeKeyboardNavigationIndicators value in the following two registry keys:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Menu properties

Bin2Hex12-Mar-04 3:11

Bin2Hex

12-Mar-04 3:11

DavidCrow wrote:
The feature is not exclusive to Windows XP

I didn't know... D'Oh! | :doh:

I still work with 2k but never noticed that "feature"... Blush | :O

Anyway, thanks for the info about the registry. Smile | :)

(although I still think that it is something not to be messed with, as it is an user setting) Unsure | :~

Re: Menu properties

Chris Richardson12-Mar-04 20:32

Chris Richardson

12-Mar-04 20:32

If you want to change it from inside a program, probably the best way to do it is like so:

BOOL a_bSet = TRUE;
SystemParametersInfo( SPI_SETKEYBOARDCUES, 0, (PVOID)&a_bSet, SPIF_SENDCHANGE );

Chris Richardson

Help in MFC intercept TCP Calls

Member 91913011-Mar-04 15:35

Member 919130

11-Mar-04 15:35

Hi I want to manipulate the MFC classes to intercept TCP calls from normal applications like Internet Explorer or WS_FTP to 'connect' using the connect function in my socks client instead of the normal TCP call.
However, I am not sure what to use to implement this.
Can anyone tell me how to use MFC classes to do that?

Thanx!

babtbaby

Re: Help in MFC intercept TCP Calls

l a u r e n11-Mar-04 15:43

l a u r e n

11-Mar-04 15:43

sounds like u need to use the CVirus class
or if ur really doing it for legit reasons then go read about the osi model for tcp/ip stacks

"there is no spoon"
biz stuff about me

Step by step tooltips implementation using Visual C++ and mfc

MeterMan11-Mar-04 14:30

MeterMan

11-Mar-04 14:30

Could someone please take the time and explain how to add tooltips to an existing mfc application?
I have an edit box that I would like to add tool tips to so the user knows exactly what needs to be input. I read something on msdn about it but for me msdn is not clear.
thanks for your help.

win32newb
"Making windows run worse than it already does"

Re: Step by step tooltips implementation using Visual C++ and mfc

Florin Ochiana11-Mar-04 23:33

Florin Ochiana

11-Mar-04 23:33

Did you read this article?

http://www.codeproject.com/miscctrl/pptooltip.asp?target=tooltip

-----
We are what we repeatedly do. Excellence, then, is not an act, but a habit.

Re: Step by step tooltips implementation using Visual C++ and mfc

MeterMan12-Mar-04 10:47

MeterMan

12-Mar-04 10:47

I looked that linke looks very good thanks.

Win32newb

"Making windows programs worse than they already are"

TimerQueue timers not accurate on Dual Processors

Gavin Stark11-Mar-04 7:03

Gavin Stark

11-Mar-04 7:03

HELP!

When running this code on a SINGLE PROCESSOR machine I get a fairly accurate 100ms timer. When running on a DUAL PROCESSOR I see about a 110ms timer. In the app I am having trouble with I am requesting a 100ms timer but getting about 150ms!!! Does anyone know how to "fix" this issue?

<br />
<br />
#include "stdafx.h"<br />
#include "stdlib.h"<br />
#include "stdio.h"<br />
#include "memory.h"<br />
#include "windows.h"<br />
#include "time.h"<br />
<br />
typedef BOOL ( CALLBACK CreateTimerQueueTimerProc ) ( PHANDLE, HANDLE, WAITORTIMERCALLBACKFUNC, PVOID, DWORD, DWORD, ULONG );<br />
typedef BOOL ( CALLBACK DeleteTimerQueueTimerProc ) ( HANDLE, HANDLE, HANDLE );<br />
<br />
<br />
VOID CALLBACK Win32TimerQueueProc(PVOID lpParameter, BOOLEAN TimerOrWaitFired)<br />
{<br />
    SYSTEMTIME myWin32SystemTime;<br />
<br />
    // get the system time<br />
    ::GetSystemTime(&myWin32SystemTime);<br />
<br />
    ULONG currentMilliseconds = myWin32SystemTime.wSecond * 1000 + myWin32SystemTime.wMilliseconds;<br />
<br />
    SYSTEMTIME* myLastWin32SystemTime = (SYSTEMTIME*)lpParameter;<br />
<br />
    ULONG lastMilliseconds = myLastWin32SystemTime->wSecond * 1000 + myLastWin32SystemTime->wMilliseconds;<br />
    ::printf("%d\n", currentMilliseconds - lastMilliseconds );<br />
<br />
    *myLastWin32SystemTime = myWin32SystemTime;<br />
}<br />
<br />
<br />
int main( int argc, char** argv)<br />
{<br />
    HMODULE hKernel32 = ::LoadLibrary("kernel32.dll");<br />
<br />
    CreateTimerQueueTimerProc* pCreateTimerQueueTimerProc = (CreateTimerQueueTimerProc*) ::GetProcAddress( hKernel32, "CreateTimerQueueTimer" );<br />
<br />
    if( !pCreateTimerQueueTimerProc )<br />
    {<br />
        ::printf( "timer code will not function - system must be W2K or later" );<br />
        return 1;<br />
    }<br />
<br />
    DWORD timeDelta = 100;<br />
<br />
    SYSTEMTIME myLastWin32SystemTime;<br />
<br />
    HANDLE myTimer;<br />
    (*pCreateTimerQueueTimerProc)(	&myTimer, <br />
                                    NULL, <br />
                                    Win32TimerQueueProc, <br />
                                    &myLastWin32SystemTime, <br />
                                    timeDelta, <br />
                                    timeDelta, <br />
                                    0 );<br />
<br />
    ::Sleep(50000);<br />
<br />
    return 0;<br />
}<br />
<br />

MSFlexGrid function

catngo11-Mar-04 6:20

catngo

11-Mar-04 6:20

there's 2 function in microsoft flex grid, GetMouseCol() and GetMouseRow() i think this 2 function return the grid value that has been clicked. anyone know how to use it and what it does?

Re: MSFlexGrid function

Steve S11-Mar-04 6:27

Steve S

11-Mar-04 6:27

Presumably in response to an event like a click, you can call these to work out where the user is?

Steve S

Listing files from a dir

RickyC11-Mar-04 5:49

RickyC

11-Mar-04 5:49

Hy everybody! Big Grin | :-D

I'm trying to make my app list all files that have in one directory into strings... but I'm losing time... does anyone know a easy way to do that? Confused | :confused: