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Re: help coloring individual listview item instead of all listview item in visual c++

PJ Arends7-Jul-06 6:29

7-Jul-06 6:29

When it comes to doing anything out of the ordinary with a list control then Mike Dunn's article[^] is a must read.

You may be right
I may be crazy
-- Billy Joel --

Within you lies the power for good - Use it!

Re: help coloring individual listview item instead of all listview item in visual c++

Justin Tay7-Jul-06 6:34

7-Jul-06 6:34

If not crashing is your metric by which you judge a piece of code... then there's nothing much I can say. Why do you have such a long chain of FindWindow() functions? And why aren't you using the RGB macro for generating the COLORREF. I'm sure not many people would know what RGB values make up 33023 offhand.

MFC custom draw article

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

WTL custom draw article.

http://www.codeproject.com/wtl/customdrawlist_wtl.asp[^]

ComboBox DropDownList?

george ivanov7-Jul-06 5:54

7-Jul-06 5:54

How to check if ComboBox dropdown list is shown or not shown?

thanks.

Re: ComboBox DropDownList?

PJ Arends7-Jul-06 5:58

7-Jul-06 5:58

GetDroppedState()

You may be right
I may be crazy
-- Billy Joel --

Within you lies the power for good, use it!!!

A (simple) limited user question

Dave Kerr7-Jul-06 5:52

7-Jul-06 5:52

For a limited user on Windows XP, will regsvr32.exe be able to register a namespace extension? I tried and got error 0x80040201, but I'm not sure if this is an issue to do with the account being a limited user or not.

Any help would be greatly appreciated.

Thanks in advance!

Dave Kerr
codechamber@hotmail.com
http://www.codechamber.com

Re: A (simple) limited user question

David Crow7-Jul-06 6:54

7-Jul-06 6:54

Dave Kerr wrote:
I tried and got error 0x80040201, but I'm not sure if this is an issue to do with the account being a limited user or not.

It resolves to, "An event was unable to invoke any of the subscribers."

"The largest fire starts but with the smallest spark." - David Crow

"Judge not by the eye but by the heart." - Native American Proverb

Problem with NTGraph

Semion_N7-Jul-06 5:48

7-Jul-06 5:48

Hello,
I have some problems with the PlotXY functions in the NTGraph activeX, Here is the article about this ActiveX:
http://www.codeproject.com/miscctrl/ntgraph_activex.asp[^]
I'll upload for you the picture of the problem here:
http://img433.imageshack.us/img433/4972/untitled2ee.jpg[^]
the function I wrote there the code is: BOOL CGraphsXYAxisDlg::OnInitDialog()(This is the function in the general Dialog)
I sure the problem is there because when I earase the line it works fine.
I tried a few combinations of the point(x,y) but it doesn't work and the errer occurs.
Do you know how can I fix it?
Thank you all for your great help!

SnaidiS(Semion)

Re: Problem with NTGraph

Justin Tay7-Jul-06 7:54

7-Jul-06 7:54

Incidentally the correct place to post these questions would actually be at the relevant article[^] itself.

The error message says Element not found. Do you actually have 3 elements for your graph? (ie. did you add 2 extra elements as the 1st was created automatically)

Re: Problem with NTGraph

Semion_N7-Jul-06 9:21

7-Jul-06 9:21

OK thank you! I think I found the problem..

SnaidiS(Semion)

Re: Problem with NTGraph

Semion_N8-Jul-06 3:49

8-Jul-06 3:49

How can I draw a line with this ActiveX.
I tried to use the functions:
OLE_COLOR ElementLineColor
OLE_COLOR ElementPointColor
LineType ElementLinetype
but it doesn't draw..
Do you have any ideas how can I draw a line between all the points?

SnaidiS(Semion)

Re: Problem with NTGraph

Justin Tay8-Jul-06 4:59

8-Jul-06 4:59

Provide some source code of what you are doing. I don't see what is so difficult.

Re: Problem with NTGraph

Semion_N8-Jul-06 5:16

8-Jul-06 5:16

I just want to know how to join/connect the points with a line.
I'll upload an image for you to understand well-here:
http://img178.imageshack.us/img178/734/untitled7yu.jpg[^]
Thank you!

SnaidiS(Semion)

Re: Problem with NTGraph

Justin Tay8-Jul-06 5:33

8-Jul-06 5:33

I know what you want to do. I want to know what steps you have taken to attempt to achieve this and your existing code because it looks to me like the SetElementXXX functions have everything you need.

Re: Problem with NTGraph

Semion_N8-Jul-06 5:42

8-Jul-06 5:42

I haven't tried to add the line because I totaly dont know how. I just know how to add points to the board, if you want the code of adding the points: take:

<br />
//this functions is from the BN_CLICKED event(its a button to plot point)<br />
void CGraphsXYAxisDlg::OnBnClickedButton2()<br />
{<br />
	//UpdateData(TRUE);<br />
	m_Graph.AddElement();<br />
	m_Graph.SetElementWidth(10);<br />
	m_Graph.PlotXY(X,m_Y,X);<br />
	X++;// X is public variable and I use it to set the X and to set the X and the element number.<br />
                UpdateData(FALSE);<br />
<br />
}<br />

Thank you!

SnaidiS(Semion)

Re: Problem with NTGraph

Justin Tay8-Jul-06 6:07

8-Jul-06 6:07

Semion_N wrote:
I just know how to add points to the board

You didn't even get that right...

An element is not a data point, it's a data set. If you only have one data set, which you do, you are supposed to just m_Graph.PlotXY(x,y,0);

Re: Problem with NTGraph

Semion_N8-Jul-06 6:19

8-Jul-06 6:19

You mean that when I'm adding element so its not a point it can be a line too?
but how can I use the line and not the point-you wrote this m_Graph.PlotXY(x,y,0);
I used it but as a point draw.
How can I make lines?

SnaidiS(Semion)

Re: Problem with NTGraph

Justin Tay8-Jul-06 6:26

8-Jul-06 6:26

From the article...

m_Graph.SetElementLineColor(RGB(255,0,0));
m_Graph.SetElementLinetype(0);
m_Graph.SetElementWidth(1);

Re: Problem with NTGraph

Semion_N8-Jul-06 6:43

8-Jul-06 6:43

Yes-I tri9ed this option but when I'm typing it here for instance:

<br />
void CGraphsXYAxisDlg::OnBnClickedButton2()<br />
{<br />
	UpdateData(TRUE);<br />
	m_Graph.AddElement();<br />
	m_Graph.SetElementWidth(10);<br />
	m_Graph.PlotXY(X,m_Y,X);<br />
	X++;<br />
	m_Graph.SetElementLineColor(RGB(0,0,0));<br />
	m_Graph.SetElementLinetype(0);<br />
	m_Graph.SetElementWidth(1);<br />
}<br />

The program do nothing it dont draw even only the points...
TY!

SnaidiS(Semion)

Re: Problem with NTGraph

Justin Tay8-Jul-06 7:24

8-Jul-06 7:24

You don't seem to understand my previous message. An element is NOT a data point. An element contains a set of data points along with the parameters of how to draw the data set. Lets say I would like to plot the stock market performance of a few companies, the performance data of Yahoo would be one element and the performance data of Google would be another element. So I have 2 elements. I can set the color for Yahoo to be yellow and the color for Google to be blue.

<br />
void CGraphsXYAxisDlg::OnBnClickedButton2()<br />
{<br />
UpdateData(TRUE);<br />
m_Graph.AddElement();<br />
m_Graph.SetElementWidth(10);<br />
m_Graph.PlotXY(X,m_Y,X);<br />
m_Graph.PlotXY(X,m_Y,0);<br />
X++;<br />
}<br />

If it still doesn't work, set a breakpoint at the PlotElement() function in NTGraphCtl.cpp and see why it's not drawing the line.

Re: Problem with NTGraph

Semion_N8-Jul-06 8:17

8-Jul-06 8:17

Yes it works!!
First of all-thank you!
but I don't understand- an element contains number of points,so why don't you add elements here?
and then draw them?
I don't really understand why PlotXY draws a set of point if you give to this function only one point?

SnaidiS(Semion)

Re: Problem with NTGraph

Justin Tay8-Jul-06 9:03

8-Jul-06 9:03

By default the graph starts with one element. It is reasonable to assume that you must at least have one data set if you want to plot a graph.

PlotXY doesn't draw anything. The element contains an array of points, PlotXY simply adds a point to the array. When there's a WM_PAINT message, the control iterates thru each element and draws all the points based on the per element settings.

Re: Problem with NTGraph

Semion_N8-Jul-06 9:25

8-Jul-06 9:25

OK I understoon TY but PlotXY adds into the array only one point on each button press in my case so why does it draws a line and not point?

SnaidiS(Semion)

Re: Problem with NTGraph

Justin Tay8-Jul-06 9:32

8-Jul-06 9:32

I don't get the question. With 2 points you can draw a line.

Re: Problem with NTGraph

Semion_N8-Jul-06 9:44

8-Jul-06 9:44

Big Grin | :-D

Dead | X|

Cool | :cool:

yeah... you are right!
Thank you man! you helped me alot! Smile | :)

Smile | :)

Smile | :)

Smile | :)

SnaidiS(Semion)

Exporting from a DLL

Jay037-Jul-06 5:46

7-Jul-06 5:46

class RTI_EXPORT RTIambassador {<br />
public:<br />
#include "RTIambServices.hh"<br />
RTIambPrivateData* privateData;<br />
private:<br />
RTIambPrivateRefs* privateRefs;<br />
};

I didn't know the meaning of having two names beside the name Class like this:

class RTI_EXPORT RTIambassador

Someone gave me an answering saying the class is intended to be exported from a DLL.
What is meant by a class being exported from a DLL. Does this mean that this specific code here is a a little chunk of a code from a DLL file and is being used by the current file Im working with? Or does it mean, tell the DLL linker to add this specific class onto the linker as an addition function.

I'm very confused here. Someone help me out. Thanks in advance

PS: I've already posted this before. Sorry for posting it again but I haven't got much reply. I beleive its because of the time I posted. Hope someone can help me out

Cheers,
Jay -

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