C / C++ / MFC

Re: get text of first item in Clistctrl without selecting it

20-Aug-02 10:24

from msdn:

CString GetItemText(int nItem, int nSubItem );
Parameters:
nItem - The index of the item whose text is to be retrieved. 
nSubItem - Specifies the subitem whose text is to be retrieved.

ex: CString strTemp = m_lbMyListBox.GetItemText(0,0);

-dz

ns20-Aug-02 10:50

20-Aug-02 10:50

Oops! I missed that somehow! Thanks,
ns Blush | :O

File Version

act_x20-Aug-02 10:00

act_x

20-Aug-02 10:00

I have an .exe File and need to display the version as the title of the Dialog Application . Is there a way I can grab this information and Display it ?
Please Help

Re: File Version

Dave Bryant20-Aug-02 10:26

Dave Bryant

20-Aug-02 10:26

BOOL CMyApp::GetCurrentFileVersionParts(int &a, int &b, int &c, int &d)
{
TCHAR buf[1024];
GetModuleFileName( NULL, buf, sizeof( buf ) );
char version[512];
VS_FIXEDFILEINFO *outputversion;

BOOL ret = GetFileVersionInfo( buf, 0, sizeof( version ), version );

UINT szLen;
ret = VerQueryValue( version, _T("\\"), (void**)&outputversion, &szLen ) ;
if( !ret )
return FALSE;

a = HIWORD( outputversion->dwFileVersionMS );
b = LOWORD( outputversion->dwFileVersionMS );
c = HIWORD( outputversion->dwFileVersionLS );
d = LOWORD( outputversion->dwFileVersionLS );

return TRUE;
}

Dave

CTreeCtrl and Selection Changed Event

dazinith20-Aug-02 9:47

20-Aug-02 9:47

I have a CTreeCtrl who has a message handler for TVN_SELCHANGED

ON_NOTIFY(TVN_SELCHANGED, IDC_MYTREE, OnTvnSelchangedMyTree)

this function looks like this:

void CMyApp::OnTvnSelchangedMyTree(NMHDR *pNMHDR, LRESULT *pResult)
{
	TRACE("CMyApp::OnTvnSelchangedMyTree()\n");
	LPNMTREEVIEW pNMTreeView = reinterpret_cast<LPNMTREEVIEW>(pNMHDR);
	UpdateStatusPane();
	*pResult = 0;
}

my problem is that when I populate the list it calls this OnTvnSelchangedMyTree() after every item that is added to the list.. my UpdateStatusPane() is a little lengthy, so it makes the populating of my tree slow..

is there any way to add items to a tree without sending a selection changed message after each one added? anyone have any other suggestions?

thanks in advance!

-dz

Ernest Laurentin20-Aug-02 11:08

Ernest Laurentin

20-Aug-02 11:08

Did you try to remove TVS_SHOWSELALWAYS style with ModifyStyle(...)?
I was not sure what you were doing inside of UpdateStatusPane(), are you changing the tree selection again? If so, then you shouldn't!

VOTD: 23 "And this is his command: to believe in the name of his Son,
Jesus Christ, and to love one another as he commanded us." - 1 John 3:23 (NIV)

dazinith20-Aug-02 11:19

20-Aug-02 11:19

i turned the always show selection off and it still calls the selection changed event handler.. ah well..

i fixed it by adding this:

if (pNMTreeView->action != TVC_UNKNOWN) // dont update the button states just from populating, only do when selected by mouse or keyboard
    UpdateStatusPane();

my UpdateStatusPane() is just populating a side view with a bunch of info about whats selected.. the if statement i added makes it where it wont call the function unless the user selects the item with the keyboard or mouse, not if it is told the selection changed by another function.

-dz

Joel Lucsy21-Aug-02 12:38

Joel Lucsy

21-Aug-02 12:38

I'm not sure if this will help but try calling SetRedraw( FALSE ) before any updates and SetRedraw( TRUE ) when you're done.

Joel Lucsy (jjlucsy@ameritech.net)

dazinith22-Aug-02 3:43

22-Aug-02 3:43

wow, that got rid of all of my flickering! thanks a ton!

-dz

Hyperlink Question

Onyme20-Aug-02 9:13

Onyme

20-Aug-02 9:13

I would like to know how to add a hyperlink to a Dialod window.

Thanks

Re: Hyperlink Question

dazinith20-Aug-02 9:36

Why was WinCE implementation better than Win32?

20-Aug-02 9:36

void CDZApp::OnLinkButtonClicked()
{ ShellExecute(NULL, _T("open"), "http://www.dzgraphics.com/", NULL,NULL, SW_SHOW); }

that would be the code for a button.. i havent used any hyperlink controls that underline, or make the link blue or anything.. try searching here on CP..

-dz

Re: Hyperlink Question

jmkhael20-Aug-02 9:45

jmkhael

20-Aug-02 9:45

http://www.codeproject.com/miscctrl/hyperlink.asp

ur welcome!

Papa
Murex Co.

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: Hyperlink Question

Anonymous20-Aug-02 9:49

Anonymous

20-Aug-02 9:49

Thanks!

djrisc20-Aug-02 8:50

djrisc

20-Aug-02 8:50

Recently in my dealings with Winsock, I have noticed that Windows CE implementation of Winsock seems to be more robust than the Win32 version.

Window CE supports SSL version 2 and 3 simply by calling a couple of additional functions.

Why does the Win32 version of Winsock not support this feature, and is there something similar I am missing on the straight Win32 platform?

This seems incredibly silly that MS would implement such a great feature on JUST the CE platform? Frown | :(

. djrisc .

Remove taskbar icon to CWnd derived wnd

BlackSmith20-Aug-02 8:39

BlackSmith

20-Aug-02 8:39

I inherited from CWnd and I want that my wnd wont have a taskbar icon.
It's created by CreateEx(), Style - WS_POPUP.
I know bout' the article discussing removing TB-icon in CDialog base appz.
This does'nt work in my case;

HEEEELLLLPPPP!!!!!

--BlackSmith--

"With the help of all mighty", 2001, Me.

Modal MessgeBox Problem

moobob20-Aug-02 7:45

moobob

20-Aug-02 7:45

I have a problem with my app when displaying a MessageBox to indicate an error. I display the message box in a losingFocus callback, if the value of a dialog field is out of range. Most times the message box behaves correctly. The problem occurs when the user clicks in a window outside the application, the message box gets displayed and keeps reappearing when the OK button is pressed. This will continue for 10-20 times before the dialog will stop appearing. I have tried all three of the modality values (MB_APPLMODAL, MB_SYSTEMMODAL, MB_TASKMODAL) with the same results.

Any suggestions as to how I can make the messagebox behave properly when the user clicks outside my application?

Thanks in advance,
Bob

Mustafa Demirhan20-Aug-02 9:08

Mustafa Demirhan

20-Aug-02 9:08

Could you post that part of the code please?

Mustafa Demirhan
http://www.macroangel.com
Sonork ID 100.9935:zoltrix

<nobr>They say I'm lazy but it takes all my time

moobob20-Aug-02 9:20

moobob

20-Aug-02 9:20

I think I need to determine if the focus is going to a window outside my app. How do I do that?

Here is the code.

void DataImportDlg2::OnKillfocusProtocolNameCb() 
{
    CString protoName;

    // Get the protocol item just typed in.
    m_protocolNameCB.GetWindowText(protoName);

    // If an item was typed in
    // verify this protocol exists.
    if (protoName.GetLength() > 0)
    {
        int index = m_protocolNameCB.FindStringExact(0, protoName);

        if (index == CB_ERR)
        {
            MessageBox (_T ("Protocol does not exist, to create it, use the Create Protocol button"),
                        _T ("Data Import"), 
                        MB_ICONERROR | MB_OK | MB_APPLMODAL | MB_TOPMOST);

            m_protocolNameCB.SetFocus();
        }

Thanks,
Bob

moobob20-Aug-02 9:31

moobob

20-Aug-02 9:31

I am trying to determine if the control that focus is going to next is on my app's window. Here is how I am attempting to do this

void DataImportDlg2::OnKillfocusProtocolNameCb(CWnd* pNewWnd ) 
{
	CString protoName;

//	CWnd *pMainWnd = (CWnd *) AfxGetApp()->m_pMainWnd;
	CWnd *pMainWnd = (CWnd *) AfxGetMainWnd();

	BOOL child = pMainWnd->IsChild(pNewWnd);

When I click on a control on my apps window, the IsChild returns FALSE. I would expect it to return TRUE.

What am I doing wrong?

Thanks in advance,
Bob