CTreeViewCtrl question - C / C++ / MFC Discussion Boards

SuzannaS17-Jun-04 4:32

17-Jun-04 4:32

Hi,
I have created a SQL SERVER ODBC DSN (data source name) with an authentication using Login ID and Password.

I would like to use my DSN without specifing the Login ID and Password in my code: here it is my code:

SQLHENV henv = NULL;
SQLHDBC hdbc = NULL;
SQLHSTMT hstmt = NULL;
SQLRETURN sRet;

PTSTR szDataSource = _T("MyDSN");
PTSTR szUID = _T("LoginID");
PTSTR szPWD = _T("Password");

// Initialize the ODBC environment.
if (SQLAllocHandle(SQL_HANDLE_ENV, NULL, &henv) == SQL_ERROR)
{
WriteIntoFile("ERRORE Initialize the ODBC environment");
return false;
}

SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION, (void*) SQL_OV_ODBC3,SQL_IS_INTEGER);

// Allocate a connection handle and connect to the data source.
if (SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc) == SQL_ERROR)
{
WriteIntoFile("ERRORE Allocate a connection handle");
return false;
}
if (SQLConnect(hdbc, (SQLTCHAR*) szDataSource, SQL_NTS,
(SQLTCHAR*) szUID, SQL_NTS, (SQLTCHAR*) szPWD, SQL_NTS) == SQL_ERROR)
{
WriteIntoFile("ERRORE Connect to the DataSource");
return false;
}

How can I do it?

CListCtrl & ToolTips

Gizmo7917-Jun-04 4:25

Gizmo79

17-Jun-04 4:25

How can I have tooltips when the cursor is over an item of my CListCtrl.

I have enabled ToolTips with CListCtrl::EnableToolTips() but it didn't works better ... Confused | :confused:

I've read something about CToolTipCtrl, but I don't know how to make relations between CListCtrl items & ToolTip's text of the CToolTipCtrl ....

--
Gizmo

Re: CListCtrl & ToolTips

palbano17-Jun-04 5:19

palbano

17-Jun-04 5:19

http://www.codeproject.com/listctrl/ctooltiplistctrl.asp[^]

"No matter where you go, there your are." - Buckaroo Banzai

-pete

Re: CListCtrl & ToolTips

Gizmo7917-Jun-04 5:55

Gizmo79

17-Jun-04 5:55

it's ok, I create my own class from CListCtrl and I have used TTN_NEEDTEXTA & TTN_NEEDTEXTW event to do it ...

Tanks to Hans Dietrich and his XListCtrl source code ... Poke tongue | ;-P

--
Gizmo

Anybody use SetWorldTransform?

CodeHead17-Jun-04 3:36

CodeHead

17-Jun-04 3:36

I have an app that prints a calibrated tape. I would like to print in mirror image. If I use
SetGraphicsMode(pDC->GetSafeHdc(), GM_ADVANCED); and then SetWorldTransform, I can get the mirror image, but when I print or do a print preview, the text is simple printed upside down!
I narrowed the offender to the SetGraphicsMode(pDC->GetSafeHdc(), GM_ADVANCED); call. Just adding SetGraphicsMode, without any other calls, results in the non-mirror image like you would expect, but the printouts give you upside down text. Has anyone ever worked around this?
TIA
Eric
www.compufoil.com

Inserting a property sheet/ tab in a dialog box

aarti vimal17-Jun-04 3:24

aarti vimal

17-Jun-04 3:24

okay i'll describe my problem in a greater detail.I already have dialog box in which some of the controls are workin.Now want to add a property sheet/tab(I'm confused between both), so that all the previously added controls also remain place and the tabbed control gets inserted in the dialog.I tried to insert the tabbed control by dragging it from the control box.But i does get displayed.
I m unable to proceed further.
Hope i was able to explain. Smile | :)

Aarti Vimal

Re: Inserting a property sheet/ tab in a dialog box

David Crow17-Jun-04 3:32

David Crow

17-Jun-04 3:32

aarti vimal wrote:
I tried to insert the tabbed control by dragging it from the control box.But i does get displayed.

So are you wanting it to not be displayed instead?

The tab control is added to the dialog template just like any other (e.g., edit) control. You select the control from the Controls window and then click on the dialog template. Position/size the control as necessary at that point.

What are you seeing that does not behave in this fashion?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

CTreeViewCtrl question

kfaday17-Jun-04 2:58

kfaday

17-Jun-04 2:58

Hello
i'm using a Treeview for a chat client. I've got a small problem.
I want to be able to select the item and open a menu with OnRightClick.
I've implemented the OnrightClick function, but first, i have to select the item with the left mouse button, and then do the right click.
I have to select the item first because i want to get the string of what's been selected. If i do right click over an item, the program crashes, because it doesn't know where to get the string
How could i do the two steps (left click, then right click) in only one, when i right click with the mouse?

thanks!

Re: CTreeViewCtrl question

Arjan Schouten17-Jun-04 3:12

Arjan Schouten

17-Jun-04 3:12

void C3StateTree::OnRButtonDown(UINT nFlags, CPoint point) 
{
	UINT uFlags = 0;

	HTREEITEM hItem = HitTest(point, &uFlags);

	if( uFlags & TVHT_ONITEM )
	{
		//SelectItem(hItem);

                CString sText = GetItemText(hItem);

Arjan

Re: CTreeViewCtrl question

kfaday19-Jun-04 4:19

kfaday

19-Jun-04 4:19

thanks Arjan!!

change cursor in win32

udi444417-Jun-04 2:50

udi4444

17-Jun-04 2:50

hi evrybody
i"m trienig to change my cursor during the time the app runs - first of i load the cursor in the main func
wc.hCursor = LoadCursor( NULL, IDC_ARROW );
where wc is my window and than i want to open a dialogbox where i would change my cursor in

anyone can help on how to do it ???
thanx alot

Re: change cursor in win32

Johan Rosengren17-Jun-04 5:22

Johan Rosengren

17-Jun-04 5:22

You handle the WM_SETCURSOR message in the dialogbox procedure.

Re: change cursor in win32

Scozturk17-Jun-04 5:23

Scozturk

17-Jun-04 5:23

I think you have to handle the wm_setcursor message in the dialog or window and after call it:

<br />
case WM_SETCURSOR:<br />
{<br />
      HCURSOR hCursor = LoadCursor(NULL, MAKEINTRESOURCE(IDC_MYCURSOR));<br />
      SetCursor(hCursor);<br />
      return TRUE;<br />
}<br />

I hope this helps...

Well... I am a beginner ...

Re: change cursor in win32

Michael Dunn17-Jun-04 9:36

Michael Dunn

17-Jun-04 9:36

Don't do it that way, that will load (and leak) the cursor resource every time the window gets a WM_SETCURSOR message. Load the cursor once and keep it in a member variable.

--Mike--
Personal stuff:: Ericahist | Homepage
Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt
CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ
----
"die"
ahhhh!
"diet"
AAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!!!!!!!!

Programatically create Bitmap file: How To???

JHAKAS17-Jun-04 2:46

JHAKAS

17-Jun-04 2:46

Hi i am doing following:

From my function SaveAsBitmap

	CClientDC dc(this);<br />
	MemDC.Detach ();<br />
	MemDC.CreateCompatibleDC(&dc);<br />
<br />
	m_WfrBmp.Detach ();<br />
	m_WfrBmp.CreateCompatibleBitmap(&dc, 860, 1100);<br />
	CBitmap *pOldBitmap = (CBitmap *)MemDC.SelectObject(&m_WfrBmp);<br />
<br />
	MemDC.SetMapMode(MM_LOENGLISH);<br />
//	MemDC.PatBlt(0, 0, 860, 1100, WHITENESS);	<br />
	MemDC.SetBkMode (TRANSPARENT);<br />
	MemDC.SetBkColor (RGB(255,255,255));<br />
<br />
	MemDC.Rectangle (100,100,400,400);<br />
<br />
        // Now save the bitmap to the BMP file <br />
        Filename ="C:\\12.bmp";<br />
        CDIBSectionLite	dib;<br />
        HBITMAP hnd = (HBITMAP)m_WfrBmp.GetSafeHandle (); 	<br />
        dib.SetBitmap (hnd);<br />
        dib.Save(Filename);

I am getting Black bitmaps only.....

What is the problem...

Any help/suggestions

Leave your mark wherever you go

Re: Programatically create Bitmap file: How To???

V.17-Jun-04 2:50

17-Jun-04 2:50

get your header info and write your bitmap pixel per pixel (binary so use fwrite)

NOTE: write away like BGR and NOT RGB. For some reason it is that way. (think memory access time is the reason, but I'm not sure)

Find some info on the net about the structure of a bmp file.

good luck.

"If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix

Re: Programatically create Bitmap file: How To???

KarstenK17-Jun-04 4:24

KarstenK

17-Jun-04 4:24

Maybe you should Get the bits of the MemDc Dead | X|

Try this @ home. (B&B)

Re: Programatically create Bitmap file: How To???

John R. Shaw17-Jun-04 12:04

John R. Shaw

17-Jun-04 12:04

I hope there is nothing attched before you make those calls to Detach() or your program will have resource leaks.

After drawing to the bitmap via Rectangle, select pOldBitmap into MemDC. If either function SetBitmap() or Save() needs to select it into a DC, then neither one can do it until MemDC releases ownership. A bitmap can only be selected into one DC at a time.

INTP

CTreeCtrl

Gizmo7917-Jun-04 2:36

Gizmo79

17-Jun-04 2:36

I currently use a CTreeCtrl with checkboxes for each item. How can I know when I check an item.

Is there an event sent to the control or something else ? The method CTreeCtrl::Getcheck() works, but I must to have informations just when I click, to update several datas ... D'Oh! | :doh:

--
Gizmo

Re: CTreeCtrl

David Crow17-Jun-04 2:55

David Crow

17-Jun-04 2:55

Gizmo79 wrote:
How can I know when I check an item.

Have you looked at either the TVN_SELCHANGED or TVN_SELCHANGING notification?

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: CTreeCtrl

Arjan Schouten17-Jun-04 3:00

Arjan Schouten

17-Jun-04 3:00

void C3StateTree::OnLButtonDown(UINT nFlags, CPoint point) 
{
	UINT uFlags = 0;

	HTREEITEM hItem = HitTest(point, &uFlags);

	// Check if the checkbox is clicked
	if( uFlags & TVHT_ONITEMSTATEICON )
	{
		if(GetCheck(hItem))
		{
			// Item is checked but after the click it will be unchecked
			TraverseDownAndSelectTree(hItem, false);
			TraverseUpAndSelectTree(hItem, false);
		}
		else
		{
			TraverseDownAndSelectTree(hItem, true);
			TraverseUpAndSelectTree(hItem, true);
		}
        }
}

Arjan

Re: CTreeCtrl

Gizmo7917-Jun-04 3:16

Gizmo79

17-Jun-04 3:16

Thanks, it works fine.

I don't use the WM_LBUTTONDOWN event, but the NM_CLICK event and it works too.

I didn't know how to verify if the mouse was over the checkbox, but know, it's done. Tanks you.

--
Gizmo

ActiveX registration

marcomars17-Jun-04 2:20

marcomars

17-Jun-04 2:20

Hello,
my MFC dialog based app uses a freeware activex I found on the net.

To use it, the relative ocx file must be registered in the system.

Is there a way to make the app do itself without the user having
to run regsvr32 c:\..... ?

I added the lines

STARTUPINFO si;<br />
PROCESS_INFORMATION pi;<br />
ZeroMemory( &si, sizeof(si) );<br />
ZeroMemory( &pi, sizeof(pi) );<br />
CreateProcess(NULL,                   // No module name (use command line). <br />
              "regsvr32 MyOcx.ocx",// Command line. <br />
              NULL,                   // Process handle not inheritable. <br />
              NULL,                   // Thread handle not inheritable. <br />
              FALSE,                  // Set handle inheritance to FALSE. <br />
              0,                      // No creation flags. <br />
              NULL,                   // Use parent's environment block. <br />
              NULL,                   // Use parent's starting directory. <br />
              &si,                    // Pointer to STARTUPINFO structure.<br />
              &pi );                  // Pointer to PROCESS_INFORMATION structure.*/

inside InitInstance().

It seems to partially work:

with the ocx unregistered, the first time I execute the app
it brings out the information message box saying "DllRegisterServer MyOcx..."
From now on each time I execute the app first I see the box and finall the app.

I'd love to skip the first dummy execution and to close automatically the system info box without having to hit OK.

Any suggestion about this?

Thanks for the precious help.

Marco.

Re: ActiveX registration

Antony M Kancidrowski17-Jun-04 2:38

Antony M Kancidrowski

17-Jun-04 2:38

use "regsvr32 myocx.ocx /s"

NOTE: /s parameter this makes it register silently! Big Grin | :-D

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fuity and sweet.
I'm jelly, what am I? - David Williams (Little Britain)

how to decide the parent dialog

dadacncn17-Jun-04 2:18

dadacncn

17-Jun-04 2:18

Hello,

I have a dialog, for example dialog3, which can be created by dialog1 and dialog2 through .DoModal(). How to decide which dialog is the parent dialog In the class dialog3?

thanks inadvance

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.