C / C++ / MFC Discussion Boards

Re: Problems in getting double as uint8

kakan17-Aug-06 2:55

kakan

17-Aug-06 2:55

cahit23 wrote:
union ifas
{
double d;
char u8value[8]; //??????????????
};

Use unsigned char for u8value

Alcohol. The cause of, and the solution to, all of life's problems - Homer Simpson

A raw toolbar for Dialog and Property page with plenty nice styles

includeh1017-Aug-06 2:15

includeh10

17-Aug-06 2:15

I don't know how many C++ guys search for articles.

this is my last article - hope you like the toolbar and give me some suggestions.

See The toolBar [^]

Find the line no. on which the cursor is present?

SanjaySMK17-Aug-06 1:36

SanjaySMK

17-Aug-06 1:36

Hello,
I am not able to find any function which will get me the line no. on which the cursor is present in RichEdit Control in MFC? How to get it? Is there any function to get it? If yes, then what is it?
Thanks,

Software Developer
Sanjay Khapre

Re: Find the line no. on which the cursor is present? [modified]

jhwurmbach17-Aug-06 1:53

jhwurmbach

17-Aug-06 1:53

SanjaySMK wrote:
line no. on which the cursor is present in RichEdit Control in MFC

Hmm - never needed that.
But does GetSel() followed by LineFromChar() work?

-- modified at 7:58 Thursday 17th August, 2006

Just found it in the Doku for LineFromChar():
"If [the Parameter] nIndex is –1, it specifies the current line, that is, the line that contains the caret."

"We trained hard, but it seemed that every time we were beginning to form up into teams we would be reorganised. I was to learn later in life that we tend to meet any new situation by reorganising: and a wonderful method it can be for creating the illusion of progress, while producing confusion, inefficiency and demoralisation."

-- Caius Petronius, Roman Consul, 66 A.D.

Re: Find the line no. on which the cursor is present?

SanjaySMK17-Aug-06 21:04

SanjaySMK

17-Aug-06 21:04

Thanks a lot jhwurmbach, I was trying so many things, but finally found your reply apt and exact. LineFromChar worked perfectly.

Thanks a ton.
Regards,

Software Developer
Sanjay Khapre

How to change font in edit control

Max++17-Aug-06 1:33

Max++

17-Aug-06 1:33

What the function can support this issue?

Re: How to change font in edit control

C^hris L^osinger17-Aug-06 1:46

C^hris L^osinger

17-Aug-06 1:46

CEdit::SetFont[^]

image processing | blogging

Re: How to change font in edit control

ThatsAlok17-Aug-06 2:10

ThatsAlok

17-Aug-06 2:10

Max++ wrote:
What the function can support this issue?

EDITBOXOBJECT::SetFont

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: How to change font in edit control

Hamid_RT17-Aug-06 2:46

Hamid_RT

17-Aug-06 2:46

CFont::CreateFont(...) and then CEdit::SetFont(...)

WhiteSky

C++ syntax: is the delete harmful?

includeh1017-Aug-06 1:31

includeh10

17-Aug-06 1:31

For example:

CPoint*pc=new CPoint;

//delete it in an array way:
delete []pc;

is the delete harmful?

if it is harmful, I have to add a flag in collection to record which pointer is for single object as example above or for array.

Re: C++ syntax: is the delete harmful?

Cedric Moonen17-Aug-06 1:40

Cedric Moonen

17-Aug-06 1:40

Yes, this can lead to troubles because allocating an array is not the same as allocating a single instance. For the array, there is first the number of instances that is saved just in front of the allocated memory. So, using delete[] it will try to read the number of instances first.

But why use a flag ? In your case you know if you use new or new[] (and normally you always now that).

If you do this:
CPoint* pc = new CPoint[1];

This is the same as allocating an array thus, delete[] will be ok.

Cédric Moonen
Software developer

Charting control

Re: C++ syntax: is the delete harmful?

includeh1017-Aug-06 1:59

includeh10

17-Aug-06 1:59

Cedric Moonen wrote:
CPoint* pc = new CPoint[1];

good idea

Re: C++ syntax: is the delete harmful?

ThatsAlok17-Aug-06 2:08

ThatsAlok

17-Aug-06 2:08

includeh10 wrote:
CPoint*pc=new CPoint;

//delete it in an array way:
delete []pc;

wrong way! you have to create that the array way before deleting!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Database question !

Bravoone_200617-Aug-06 1:28

Bravoone_2006

17-Aug-06 1:28

i have 2 CEdit (CDialog) i want to search if the text from CEdit (1) matches with 1 record (in my database )( my database visualfoxpro - CRecordset - snapshot ) and the matches must fill in the second CEdit ! how ?

thanks !

Bravoone

Re: Database question !

David Crow17-Aug-06 4:34

David Crow

17-Aug-06 4:34

I find the easiest way is with a parameterized recordset. Please do not ask what that is without searching for it yourself first. You can either use Google, or peruse the CP articles. Hint: one of my articles has an example.

"Money talks. When my money starts to talk, I get a bill to shut it up." - Frank

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

embed mysql installer in c++ appliction

shinuq17-Aug-06 1:17

shinuq

17-Aug-06 1:17

i just want to integrate the mysql installer inside the c++ appliction.
I think its possible
since i had seen some of the client side installation software that performs the said task.

if i run the c++ application, it will prompt for the mysql installation.
The mysql installer then will be installed in the client machine.

If any dude out there possibily put some light into this matter will be heartly appreciated...

never be late or time will ate

How to create combo box in a gridline of a list control

vc++_fragrance17-Aug-06 1:00

vc++_fragrance

17-Aug-06 1:00

Hi,
I have created a List control in report view using gridlines as follows
m_StoreItems.SetExtendedStyle(LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES);

I need to create a combo box in a column seperated by gridlines.
Can u please help me.

thannks in advance.

Re: How to create combo box in a gridline of a list control

Amar Sutar17-Aug-06 2:28

Amar Sutar

17-Aug-06 2:28

This link may help you.

http://www.codeproject.com/listctrl/CustomizedReportListCtrl.asp

Regards
Amar Smile | :)

Re: How to create combo box in a gridline of a list control

Hamid_RT17-Aug-06 2:50

Hamid_RT

17-Aug-06 2:50

See Editable Table Control[^]

WhiteSky

How to remove the Frame for SDI Application

kiranin17-Aug-06 0:55

kiranin

17-Aug-06 0:55

I want to remove the frame for SDI Application?
How can i do it?
and even menu and tool bar also i want to remove..

Re: How to remove the Frame for SDI Application

prasad_som17-Aug-06 1:03

prasad_som

17-Aug-06 1:03

You need to remove WS_OVERLAPPEDWINDOW style from windows style you are using
Make your CMainFrame::OnCreate function look like this

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
	return -1;
    ModifyStyle(WS_OVERLAPPEDWINDOW,0);
}

Prasad
Notifier using ATL

Re: How to remove the Frame for SDI Application

kiranin17-Aug-06 3:34

kiranin

17-Aug-06 3:34

Thank you,
i want to know how to put colors for the windows and for the controls which is on the window

Re: How to remove the Frame for SDI Application

prasad_som17-Aug-06 3:37

prasad_som

17-Aug-06 3:37

you need to override OnPaint if window is CMainFrame.For controls you need to make them owner drawn, and handle its appearance in OnDrawItem.

Prasad
Notifier using ATL

How to Get The Size of MDI Min Window

cybersadhu17-Aug-06 0:41

cybersadhu

17-Aug-06 0:41

i Want to get the Coordinates of the of my MDI Window, from a function of the class defined Below

class CGUIControlFrame : public CMDIChildWnd {
}
void CGUIControlFrame::OnDestroy()
{
.
.
GetParentFrame()->GetWindowRect(Rect);
.
.
}
I have Used GetParentFrame()->GetWindowRect(Rect); to get the coordinates But its is Not working.

Can Any one help me.

Re: How to Get The Size of MDI Min Window

prasad_som17-Aug-06 0:47

prasad_som

17-Aug-06 0:47

you can't get it there. Window no longer exists at that point.

Prasad
Notifier using ATL

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