C / C++ / MFC

Re: i ment: buttom border

26-Jul-01 2:47

What's 'buttom order'?

Tomasz Sowinski -- http://www.shooltz.com

i ment: buttom border

26-Jul-01 3:51

how can i make a buttom border for a CToolBar?

Tomasz Sowinski26-Jul-01 4:12

26-Jul-01 4:12

My English is a little bit weak, so please be more specific: you want 'button border' or 'bottom border'?

Tomasz Sowinski -- http://www.shooltz.com

RichEdit

26-Jul-01 2:17

How do i insert text to the CRichEditCtrl progromaticaly?

Re: RichEdit

Tomasz Sowinski26-Jul-01 2:55

How to read parameter from stored procedure ?

26-Jul-01 2:55

Check SetWindowText and ReplaceSel.

Tomasz Sowinski -- http://www.shooltz.com

Re: RichEdit

26-Jul-01 2:56

You need a callback function, something like:

DWORD CALLBACK readText(DWORD dwFilehandle, LPBYTE lpBuffer, LONG lBytesToRead,LONG FAR* lpBytesRead)
{
if(!ReadFile((HANDLE)dwFilhandle,lpBuffer, lBytesToRead, (unsigned long*)lpBytesRead, NULL)){
AfxMessageBox(_T("Couldn't read from file!"));
return 1;
}
return 0;
}

and then use StreamIn.

/Per

Bartek26-Jul-01 2:09

Bartek

26-Jul-01 2:09

Hi,

I am using ADO tecnology to execute stored procedure.

Does anyone know how to read out a parameter from sp into VC++ variable

I need to get @file_id (which is set at the bottom of sp)
thank you,
bartek

My stored procedure:

CREATE PROCEDURE [sp_StandardFileNew]
@receive_date varchar(20),
@pj_id int,
@pj_type varchar(20),
@file_group varchar(200),
@name varchar(255),
@ext varchar(10),
@total_words int,
@dtp_pages int,
@notes varchar(500)

AS

DECLARE @file_id int,
@receive_date2 smalldatetime,
@project_id int,
@job_id int,
@group_id int

-- Check if obligatory text parameters are null

if @name is null OR @ext is null OR @pj_id is null OR @pj_type is null OR @receive_date is null
begin
return 1
end

-- Set @project_id or @job_id depending on the @pj_type [ "job" | "project" ]

if @pj_type="job" begin
set @project_id=null
set @job_id=@pj_id
end else if @pj_type="project" begin
set @project_id=@pj_id
set @job_id=null
end else begin
return 2
end

-- Check group_txt if it exists retrieve its id or create new group if it does not exist

if @file_group is not null begin
exec sp_NewFileGroup @file_group, null, @project_id, @job_id, @group_id OUTPUT
if @group_id is null begin
return 3
end
end else begin
set @group_id = null
end

-- Convert date-string format to datetime / smalldatetime

exec sp_DateConvert @receive_date, @receive_date2 OUTPUT

-- insert new row to the Files table and convert text arguments to integer values

insert into files(name, ext, receive_date, group_id, job_id, project_id, total_words, dtp_pages, file_type_id, deleted, works_count, notes)
values(@name, @ext, @receive_date2, @group_id, @job_id, @project_id, @total_words, @dtp_pages, 0, 0, 0, @notes)

set @file_id = @@identity

if @file_id is null begin
return 4
end

return 0
GO

WANTED: Clever Ideas

Derek Lakin26-Jul-01 1:59

26-Jul-01 1:59

I have three menu buttons on a dialog (thanks to Norm Almond for the code) each of which requires the same menu items on them in terms of the strings they present and whether or not any items are disabled.

However, the first and third buttons need to show check marks, but independently of each other. The second button mustn't show any check marks at all.

Does anyone have any clever ideas on how best to implement this or do I need a separate menu and corresponding handlers for each?

Is there a way to use the ON_UPDATE_COMMAN_UI macro? If so how?

Derek.

Re: WANTED: Clever Ideas

Tomasz Sowinski26-Jul-01 3:01

26-Jul-01 3:01

ON_UPDATE_COMMAND_UI should work - do you have any problems with that?

Tomasz Sowinski -- http://www.shooltz.com

Re: ON_UPDATE_COMMAND_UI

Derek Lakin26-Jul-01 5:20

26-Jul-01 5:20

I thought this macro was only applicable to menus and toolbars that existed in a CFrameWnd-derived class.

If I can use it then presumably all I need to do is process which button was pressed and then update the checkmarks (if any) accordingly. With the LButtonDown/Up already overridden in the class to provide the menu buttons, how can I determine which button was pressed from the dialog?

Re: ON_UPDATE_COMMAND_UI

George Chastain26-Jul-01 5:34

George Chastain

26-Jul-01 5:34

You are correct in the ON_UPDATE_COMMAND_UI is not directly supported in dialog based apps. However, there is a workaround that is EASY to implement that WILL allow you to use the ON_UPDATE_COMMAND_UI mechanism on dialogs. Look up on MSDN the private message WM_KICKIDLE. The kind developers at microsoft implemented this private message for us folks that like dialog based apps.

WillCodeForMoney

Re: WM_KICKIDLE

Derek Lakin26-Jul-01 21:15

26-Jul-01 21:15

Thanks for the tip. I'll look it up Smile | :)

Re: ON_UPDATE_COMMAND_UI

Tomasz Sowinski26-Jul-01 6:41

26-Jul-01 6:41

You could set a flag before calling TrackPopupMenu, and check the value inside UpdateCmdUi handlers. There's other solution - just disable or check menu items 'manually' using CMenu member functions before TrackPopupMenu.

Tomasz Sowinski -- http://www.shooltz.com

Drawing Icons on Buttons

Derek Lakin26-Jul-01 1:54

Re: Drawing Icons on Buttons

26-Jul-01 1:54

The next episode in my ongoing saga of owner drawn buttons:

I want to allow icons or bitmaps to be drawn on my button and this can be done using a CImageList to store the images in. At the moment I just have a single icon or bitmap to draw (the rest will come later) and I'm using the following to draw the image in DrawItem:

void CButtonEx::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) {
	// ...
	m_imageList.DrawIndirect (pDC, 0, CPoint(3 + m_bBtnPushed, 3 + m_bBtnPushed),
		CSize (m_nImageWidth, m_nImageHeight), CPoint (0, 0), ILD_NORMAL);
	// ...
}

The problem is that the transparent bits of an icon are drawn black! Any ideas why?

The icon is added to the image list as follows:

BOOL CButtonEx::SetButtonIcon(UINT nResourceID, COLORREF crMask) {
	BOOL bReturn = FALSE;
	HINSTANCE hInstance = AfxFindResourceHandle (MAKEINTRESOURCE (nResourceID), RT_GROUP_ICON);

	m_hIcon = (HICON)::LoadImage (hInstance, MAKEINTRESOURCE (nResourceID), IMAGE_ICON, 0, 0, 0);
	if (NULL != m_hIcon) {
		m_crMask = crMask;
		ICONINFO iconInfo;
		ZeroMemory (&iconInfo, sizeof (ICONINFO));
		bReturn = ::GetIconInfo (m_hIcon, &iconInfo);
		if (TRUE == bReturn) {
			m_nImageWidth = iconInfo.xHotspot * 2;
			m_nImageHeight = iconInfo.yHotspot * 2;
			::DeleteObject(iconInfo.hbmMask);
			::DeleteObject(iconInfo.hbmColor);
			bReturn = m_imageList.Create (m_nImageWidth, m_nImageHeight, ILC_COLOR32, 1, 1);
			if (TRUE == bReturn) {
				if (m_imageList.Add (m_hIcon) > -1) {
					m_bImageLoaded = TRUE;
				}
				else {
					m_bImageLoaded = FALSE;
				}
			}
		}
	}

	return bReturn;
}

Steve Thresher26-Jul-01 5:51

Steve Thresher

26-Jul-01 5:51

I think you need to create a masked image list not a standard image list. Add ILC_MASK to the nFlags parameter of the image list creation.

Hope this helps.

Steve.

Re: ILC_MASK

Derek Lakin26-Jul-01 21:16

What is type: something** ?

26-Jul-01 21:16

Thanks for the tip. I'll try that and see how I get on

Dialog design

26-Jul-01 1:44

Hi,
Recently I have seen in a decoration store an application for paints mix.
One of the dialogs was the simulation of a pad sheet yellow page, with horizontal lines.

Does anybody knows where I can find a way to do this or a lib that contains it ?

Thanks,

Claude

26-Jul-01 1:44

What type is it with two asterixes?? Is it a pointer to a pointer? That sounds silly.

Really appreciate a hand as doing a search for this is nigh on impossible.

Thanks.

Derek Lakin26-Jul-01 1:47

26-Jul-01 1:47

Silly though it may sound 'something**' is a pointer to a pointer.

I've never found the need to use one, but I'm sure there is someone who can teel you a very good reason for needing them Poke tongue | ;-P

Derek Waters26-Jul-01 16:50

Derek Waters

26-Jul-01 16:50

It's not that silly. Here's an example. Say you want to sort a very large array of "things", where you don't want to be swapping the things around in memory, because it would be very inefficient. You create an index into the main array of things, where each item in the index points at one of the things. This array is defined as a **:

typedef thing; // thing is large.

thing *m_atThingArray;
thing **m_atThingIndex;
int m_iArraySize = 10000;

m_atThingArray = new thing[m_iArraySize]
m_paThingIndex = new thing*[m_iArraySize];

m_paThingIndex[0] = m_tThingArray[40]; // Makes index[0] point at thing[40]
// more efficiently than moving
// thing[40] to thing[0]

This is good for sorting large arrays of large items.

------------------------
Derek Waters
derek@lj-oz.com

Sam C26-Jul-01 17:34

Sam C

26-Jul-01 17:34

m_paThingIndex = new thing*[m_iArraySize]; m_paThingIndex[0] = m_tThingArray[40]; // Makes index[0] point at thing[40] // more efficiently than moving // thing[40] to thing[0]

Where is m_paThingIndex declared? Confused | :confused:

Is this automatically created when you define the p-to-p? If you want an example of a pointer to a pointer several MFC classes have methods that use a p-to-p I think there mostly for callback functions (someone jump in if I'm way off!)

Sam C
----
Systems Manager
Hospitality Marketing Associates

Derek Waters26-Jul-01 18:30

Derek Waters

26-Jul-01 18:30

Er, sorry, typing error.

m_paThingIndex should be m_atThingIndex;

so:

m_atThingIndex = new thing*[m_iArraySize];
m_atThingIndex[0] = m_atThingArray[40];

Sorry about that!

Derek.

------------------------
Derek Waters
derek@lj-oz.com