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thks for your reply.
as u suggested, i try debugging and found out that OnPaint() was called and entered.Below, is relevant code snippet in OnPaint().It was found though, that "plotGraph.Plot(pDC,link)" was not executed.plotGraph is a CObject-derived class and Plot(CDC *pDC,int link) is the function definition...link var is just for my own program purpose.
CWnd* graphFrame = (CWnd*)GetDlgItem(IDC_GRAPH_FRAME);
CDC* pDC = graphFrame->GetDC();
plotGraph.Plot(pDC,link);
The odd thing is this had worked fine while i was using modal dialog boxes.
any idea what is or might be wrong?
a big thank you.
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Seeing this I can only tell you:
NOTE:
surely the things that I'll tell you will be very obvious for you, but let's give it a try, who knows...
1.
check if you are getting the right pointer to graphFrame.
2.
Once you will be sure that the right pointer is obtained, then you should check if the pDC variable is getting the desired value.
3.
After all this... you should check if the link var points to where it should(or have the value it should)...
4.
the most fool thing to check...
sometimes the compiler gets mad and only a deletion of some files and a full rebuild gets it to work...
but before doing so...
raner wrote:
"plotGraph.Plot(pDC,link)" was not executed
please, place a do_nothing little bit of code like the next one before and after that line in order to see if the execution gets broken before or during that line call.
if (true)
{
plotGraph.Plot(pDC,link);
}Using that piece of code you'll be able to see if you enter inside the if clause or not... and you'll be able to see if the error comes before that call or not...
5.
if you have the font code of the plotGraph class, try to debug the Plot function in order to know what is happening,
hope this helps...
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i noted down your suggestions and will try them to debug my pgm..in the meantime..u have any idea where to set the message map for OnEraseBackground?...because i cant find it in the Class Wizard.
really grateful for your help 
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You should right-click your dialog class in the class wizard, and then, select "Add Windows Message Handler", once this has been done, in the "Filter for messages available to class" combobox (right bottom of the dialog), select "WINDOW".
Now, you have only to select "WM_ERASEBKGND" from the "New Windows messages/events" listbox (left top of the dialog), after that you have to press the Add and Edit button.
Hope this helps...
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 u cant do so..because the focus will be on first dialog and until u dismiss that it will not let go the control onto the next line..for using multiple dialogs at asme time..use property sheets..and that will appear as tabs of anything u see..like internet opetions..I hope you can go on with it....
cheers
Himanshu
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Can anbody point me to a good article or resource for CListView and Owner or Custom Draw? What I am trying to do is capture the point were the list view draws its "highlighted" section so I can redraw it my way.. I don't want to fill the background.. just draw a colored border around the item.. I figured there would be a event for these seeings how the control has a GetItemRect() function and I don't really see any other purpose you would need the Items Rect.
C# a poor attempt at bringing C++ to the VB masses
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There are very good articles here in CP. Just look in the Controls section.
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Hi everyone
For the application I am working on I need to find out the duration of internet connection. Duration of internet connection will include the actual amount of time the user is browsing i.e. if the user connects to the internet and stays idel then connection time will be zero
How can I find out such duration? Is there any API for this?
I need help urgently.
Thanks
Ashish
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Hi,
i am currently using overlapped IO mode WriteFile() to control serial port. i met problem! i don't know when the output data are completely sent from the output buffer. that's essential for me as i need to toggle DTR pin after data completely transmitted.
i tried GetOverlappedResult() after WriteFile(). however, even it report to me that lpNumberOfBytesTransferred same as my data size. the data still in the buffer, it is not completely sent. (i obtained this information thro' a CRO monitoring the pins)
so, could anyone give me a help? i think it is the same case for File IO. so, pls give me any help!
thanks!
jim
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Hey!
lemme into myself.
i am Arun from India.
I have got this problem, if anyone can help me then i'd be glad and very thankful.
In a Single Document Interface Application,I have a HTML bar on top where i've got a simle page with links on it. And in the client area there are list controls and others. There are two toolbars, one on the top (below the HTML bar) and the other on the lefthand side.
Now, here is the problem... when i click on the links on the HTML bar, the two toolbars get DISABLED. To get them back enabled, i have to click on the client area again... i.e. on one of the list controls.
wud anybody tell me how i can avoid the toolbars from getting disbaled?!!
thank you.
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Hello there!
I used to use the CHtmlView class extensively a few years ago. I remember a time when I had a splitter window configuration with a CHtmlView on one side and a CFormView on the other side of the splitter. Certain toolbars would mysteriously get disabled when I made selections on one side. I believe I solved the problem by calling CFrameWnd::SetActiveView(...) fn whenever I handled an event from the other side of the splitter. It had the same effect as the user clicking on the client area.
Art
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Hi Art,
I am trying out the solution that you suggested...
But what r the parameters that i pass into the function and where do u think it is appropriate that i must call this function at?
I cud think of OnKillFocus() of CMainFrameWnd as one option.
Now the function is of the following type..
void SetActiveView( CView* pViewNew, BOOL bNotify = TRUE )
what am i to send as the fist argument? The client view is a runtime class called CMyView, so... how will i do it? please help.
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arunbooboo,
After looking at some of my old code (before I became grey haired) I realize I was working with CSplitterWnd class. When the user clicked on a button on the left pane it would deactivate certain menu options/toolbars that were unique to the right pane (CHtmlView based). So what I did was call CSplitterWnd::SetActivePane(..) setting the right pane as active to take care of the problem.
Your problem has a slightly different twist. You've apparently got this "HtmlBar" that is taking focus when you click on it. The toolbars are disabled probably because they are tied to the view. What class handles the events that are picked up by the selections in this "HtmlBar". If you are in the view class you might try calling CView::SetActiveWindow() at the end of each handler.
Art
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Hey Art,
Thank you for writing back.
I made some progress regarding the problem but all is not well!!
The HTML bar that i was referring to is derived from CHtmlView class.
Okay, so when i click on it the focus is set on this. Now all i need to do is reset the focus back on to the main view. unfortunately the pOldWnd parameter that is passed into the OnSetFocus function of my CHtmlBar class is that of either CMainFrame or CListCtrl or CMyView (THE VIEW). I can only use SetActiveView() function if it pOldView is referring to CMyView, else it gives me an error at IsChild() which is called in SetActiveView() of CFrameWnd class.
Now i think i need to use SendMessage(WM_KILLFOCUS, , ) from OnSetFocus() function of CHtmlBar. But I need to fool the application in beleiving that this message is from CMyView.. how do i do that? HELP PLEASE ?!!
Wud u tell me how the remaining two parameters of SendMessage can be used to send this kind of a message.
Okay! hope i am not bugging you.
I'd/I am really appreciate/appreciating the help you are giving me.
Luv Arun.
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Try using (WM_KILLFOCUS, 0, 0) and see what happens. I really can't help any more since I can't see your program.
Art
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please give me some ideal about how to develop a software just like ACDsee ,that don't need power function, thank you !!
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There are several apps on CP that use GDI+ to do exactly that, and the FAQ explains how to load multiple image formats without GDI+ if you don't want to use it.
Christian
NO MATTER HOW MUCH BIG IS THE WORD SIZE ,THE DATA MUCT BE TRANSPORTED INTO THE CPU. - Vinod Sharma
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Where the default toolbar images comes from in SDI/MDI applications?
I mean, what is the dll name that holds that images in its resource?
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They're usually compiled into the executable as BITMAP resources.
If you open the file "as resources" in the IDE you should be able to see them.
Anna ![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
www.annasplace.me.uk
"Be yourself - not what others think you should be"
- Marcia Graesch
Trouble with resource IDs? Try the Resource ID Organiser Add-In for Visual C++
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I know that. However, the images are copied from somewhere else.
Someone in codeguru site told me that i can find them in the graphic folder
under in Visual Studio folder.
I am looking for print-preview icon like in MS office.
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I believe they are stored in User32.dll .. A MSJ article by Paul eons ago demonstrated writing an application to extract RIFF file types from resources.. I believe the same article explains that opening a resources (in this case.. I believe User32.dll) as a "resource" in the IDE you can broswe the icons and bitmaps.. they should be stored as bitmaps in there.. or you could just use app wizard to create a SDI project and browse over to your res directory and open toolbar.bmp .. should have the basic ones in there.
C# a poor attempt at bringing C++ to the VB masses
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I have already checked in User32.dll, but i couldn't find the toolbar images their.
You can find them under Graphic folder in Visual Studio's folder.
In order to have print-preview image, i opened the Word application,
copied to screen to the clipboard, paste it to the paint brush and cut the
print-preview image.
Thaks anyway.
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Hi all,
I am brand new to VC++. I an always having problems with paths when compiling. For instance, the MIDL compiler does not compile if the path of directories include blank spaces (e.g. c:\Program Files\.....). So, I am always compiling with include files in non blank spaces directories (c:\temp\include). What is wrong?
Thank you in advance
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Are you try to do something like
#include "C:\Program Files\Microsoft Visual Studio\VC98\Include\stdio.h"
by any chance?
This is where the difference with include "file" and include <file> comes in.
If you're including a standard system header, just do
#include <stdio.h>
and the compiler will find the header for you.
If it's a header you've written yourself, then it should either be in the same directory as the project, or a "near by" folder, in which case you can just do
#include "myheader.h"
or
#include "../commonheaders/myheader.h"
for example (though in this case, it'd be better to add the "commonheaders" folder into the VC include folders settings, then it'll find it without needing to specify the path)
If you have a common header that's used in multiple projects, you can use source control (i.e. SourceSafe) to share a single file across multiple projects and keep them in sync for you
Hard coding exact directory paths into sourcecode is very bad, as it locks down the code to your specific PC. If you hand the source to someone else to work on, they'll have to have their directory layout identical to yours in order to be able to compile the code, which isn't particularly desirable
--
Help me! I'm turning into a grapefruit!
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I try to make the following:
Has created SDI application and has connected to database through OLEDB
Has put on form Static1 ("name") and Static2 ("surname")
, Editbox ("name" from base), and it would be desirable to make so
That when I enter in Editbox "Alex" in statics showed (or specified) this line in the table (the table is sorted)
Also has then thought how to make so that the cursor (I have connected base to help AppWizard, and it creates four buttons First, Next..) there was at row which I have achieved through Editbox.
Any helps / comments are welcome.
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