Re: Ultimate Grid in an ActiveX - TOOL TIPS not working.... - C / C++ / MFC Discussion Boards

Re: Conversion to VS2008

Joe Woodbury27-Jul-09 14:56

27-Jul-09 14:56

Is it returning a BOOL or a bool? I'll wager the DLL returns a bool (a one byte value), but Excel is looking at the value as an int (a 4 byte value.)

(The reason it may have "broken" is simply due to how the code was compiled between the two compilers since I've seen VC++ 6 display this behavior.)

Re: Conversion to VS2008

thecodedemon28-Jul-09 4:04

thecodedemon

28-Jul-09 4:04

To the first question, yes, that is why I built the Excel tester. That's how I know the 'return false;' statement does nothing.

To the second question, I actually have several DLLs that return in the same way, and some of them still work, while some of them get stuck returning true. On the BOOL vs bool, in the C++ code it's a 'bool' and in the tester it's looking for a VBA 'Boolean'. Though with some of the DLLs working correctly, and the others not, I don't think that has anything to do with the bug.

A soft glow comes from the pit in the darkness.
The clicking noise become faster - and louder.
A wind begins to stir up from the pit, as the
creature flexes it's wings, preparing for flight.
You stare into the pit, and hear a voice say
in your mind, "If you survive the encounter,
declare it to the world."

The Code Demon Rises.

Re: Conversion to VS2008

Joe Woodbury28-Jul-09 5:27

Joe Woodbury

28-Jul-09 5:27

I can't totally confirm this, but some sources state that a VBA Boolean is 4 bytes (another said it was 2 bytes).

Re: Conversion to VS2008

thecodedemon28-Jul-09 6:03

thecodedemon

28-Jul-09 6:03

Using Len() and LenB() in VBA, the size of a Boolean is 2 bytes. Here[^] it says the size of a C++ bool is 1 byte. For my problem, I can just return an int, 1 or 0, instead of true/false, and get around it. But Why would the size difference between bools cause this problem?

The Code Demon Rises.

Re: Conversion to VS2008

Joe Woodbury28-Jul-09 6:19

Joe Woodbury

28-Jul-09 6:19

A value is returned in the eax/ax/al register. Because a one byte bool only has to zero out the register al (xor al, al). The high bits of the [e]ax register may be set to a non-zero value.

Date-Time Control selection issue

kasi1427-Jul-09 12:04

kasi14

27-Jul-09 12:04

Hi Everyone,

I am working on a MFC project in VS2008. I have a very long form which need scrolling. At the end of the form i used a data time control and when i select a dated at runtime. The form jumps to the start of the screen.

Did anyone face this kind of issue?

Any suggestions will be helpfull.

Regards,
Kasi

Ultimate Grid in an ActiveX - TOOL TIPS not working....

JTemprile27-Jul-09 11:20

JTemprile

27-Jul-09 11:20

Hi All,

Seems that, despite the incredibly easy steps of getting HINTS (tool tips) going using ultimate grid, they don't seem to want to show up.
We have done the following:

1. Added UseHints(TRUE); to the OnSetup() func.
2. Wrote code to handle a tooltip in the OnHint() handler.

Could this be because the Grid is being put into an ActiveX control and there is some crazy windowing issue happening here?

Any help would be great,

Jt

Re: Ultimate Grid in an ActiveX - TOOL TIPS not working....

Chetan Sheladiya12-Apr-11 2:46

Chetan Sheladiya

12-Apr-11 2:46

Hi

want to create UGrid control as ActiveX or COm to use it from C#

can you help me out?

Thanks

CC

chetan

Treeview selected item background [Solved]

Rozis27-Jul-09 10:03

Rozis

27-Jul-09 10:03

When an item in a treeview is selected it is colored blue. But if you set the focus on another control the selected item keeps selected but has no visual clue for this, you can't see which is selected. Is there a way to change the background of the selected item using WinAPI-function and/or C(++) only?

Thanks

Rozis

modified on Tuesday, July 28, 2009 6:02 AM

Re: Treeview selected item background

Code-o-mat27-Jul-09 11:44

Code-o-mat

27-Jul-09 11:44

Try adding the TVS_SHOWSELALWAYS style to your tree control.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: Treeview selected item background

Rozis28-Jul-09 0:02

Rozis

28-Jul-09 0:02

Simple and effective...

Thanks

How to fill PDF's fields?

Hadi Dayvary27-Jul-09 8:27

Hadi Dayvary

27-Jul-09 8:27

Hi I wanna set the fields value of a PDF file via MFC.
I know how to do it for MSWrod, but I have no idea how to do it for a PDF file
any idea?

www.logicsims.ir

Re: How to fill PDF's fields?

Adam Roderick J27-Jul-09 18:34

Adam Roderick J

27-Jul-09 18:34

i dont think it will be easy doing the PDF writing using MFC.
use the below mentioned library named libharu, it can used to read and write PDF files Smile | :)

http://libharu.sourceforge.net/[^]

all the best Smile | :)

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Getting string from a Text file

dipuks27-Jul-09 7:30

dipuks

27-Jul-09 7:30

Hey

I want to extract a string from a text file.

The file name is "info.txt"

Inside the text file there is a field called, "Age = 23"

Now i want to extract that "23" from the Age.

I know its easy to do that on an ini file, with its key name.

But how to do that on a text file.

Re: Getting string from a Text file

Rajesh R Subramanian27-Jul-09 7:51

Rajesh R Subramanian

27-Jul-09 7:51

If you're using MFC, you can use CStdioFile or CFile. With Win32, you could use ReadFile() or use the C++ stream functions as well. I'm picking the easiest and showing you an example:

CStdioFile csf;
CFileException cfe;
if(!csf.Open(_T("C:\\Temp\\rough.txt"), CFile::modeRead, &cfe))
{
	AfxMessageBox(_T("Unable to open the file"));
	return;
}
CString szBuffer;
csf.ReadString(szBuffer);
int nFind = szBuffer.Find(_T("="));
AfxMessageBox(szBuffer.Mid(nFind+1)); //Will display 23

Contents of file:

age = 23

It is a crappy thing, but it's life -^ Carlo Pallini

CToolBarCtrl::GetToolBarCtrl();

Software200727-Jul-09 7:21

Software2007

27-Jul-09 7:21

I am changing my application to use the Feature Pack 2008 to get the new "look". One of the problems I ran into, is How to change the GetToolBarCtrl()? Here is a snippet:

////Before
CToolBar m_wndGraphToolBar;
CToolBarCtrl *pGraphToolBarCtrl;
pGraphToolBarCtrl = & m_wndGraphToolBar.GetToolBarCtrl();
pGraphToolBarCtrl->HideButton(nID, TRUE );

But when I change CToolBar to CMFCToolBar, I get: 'GetToolBarCtrl' : is not a member of 'CMFCToolBar' ?
How do I replace this? Anyone ran into this one?

Thanks

Re: CToolBarCtrl::GetToolBarCtrl();

znasir16-Dec-12 23:20

znasir

16-Dec-12 23:20

Hi,

Did you find the solution of this problem? I am also stuck with this problem.

Want to know about mouse programming

WindowsVsLinux27-Jul-09 6:44

WindowsVsLinux

27-Jul-09 6:44

Hi,
I want to know about mouse programming.Actually i want to do is that there is a *.docx file in my computer(windows-XP)and i have a c program which can read the content of *.docx file.so first i have to give input(the location of the *.docx file) to that C program then it can read the content of that *.docx file.I want that when i click on *.docx file then it will be input for that C program.So how can i do this???
Please help me.....

-Ravi Joshi wanna ask about mouse programming.............

Re: Want to know about mouse programming

Rozis27-Jul-09 10:06

Rozis

27-Jul-09 10:06

Make a file assiocation telling when the user clicks on .docx-file your program is run (with the .docx-file as a commandline parameter).

Rozis

Re: Want to know about mouse programming

WindowsVsLinux27-Jul-09 19:33

WindowsVsLinux

27-Jul-09 19:33

Hey Rozis .
The same thing i want to ask you that how do to that program in C? Please help me Please....if you have any website link or any C program of that type please give me or simply mail me in ravi2008joshi@gmail.com

Will this work in C++ (Vector, Struct)

resolvequestion27-Jul-09 6:40

resolvequestion

27-Jul-09 6:40

I have buffer of data coming in and I will try to store in the as below struct would this work.

struct {
int flag,
char check,
vector<char> data,
}Packet;

Packet = Buffer; (assigning buffer information to Packet Struct)

Will vector will be assigned data auromatically or I have to use "push.back" inorder to get the data stored in vector...

THANKS!!!

Re: Will this work in C++ (Vector, Struct)

C^hris L^osinger27-Jul-09 9:10

C^hris L^osinger

27-Jul-09 9:10

in C++, the default struct assignment operator does a member-wise assignment from src to dest. and vector's default assignment operator will copy the contents of the src vector to the dest, automatically.

so, no, you shouldn't have to do any push_backs.

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polynomial addition with array using C++

beulahponmalar27-Jul-09 6:29

beulahponmalar

27-Jul-09 6:29

i dont know how to implement polynomial addition with array pls guide me

Beulah

Re: polynomial addition with array using C++

Maximilien27-Jul-09 6:37

Maximilien

27-Jul-09 6:37

I've just googled your "question" and found a few implementations.

Since I'm no expert on polynomial additions, I cannot say if they are good or not.

Have fun looking at them and adapt them to your particular situation.

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Notify Events When Event log is Full

Raghu.Amil27-Jul-09 5:59

Raghu.Amil

27-Jul-09 5:59

Hi,

I have written an application to get notified when any event is written to Application Log.When the code notifies I collect the recently written events and put them in a text file. ( I have reffered the http://msdn.microsoft.com/en-us/library/aa363677(VS.85).aspxto develop this application)

But when Application log is full the code is still waiting for an event to occur and never notifies.

The question is that whether the NotifyChangeEventLog() function notifies if an Application Log is full.

Is this the default behaviur of the notifyChangeEventlog() function?.If it is so is there any thing that I can do to handle this situation.

Please help me in solving this.

Thanks in advance
ARD

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