Re: How to display series of numbers ? - C / C++ / MFC Discussion Boards

Re: How to display series of numbers ?

Ravi Bhavnani7-Apr-06 15:36

Ravi Bhavnani

7-Apr-06 15:36

To display the series on the same line, simply construct the string and use TextOut() to display it, as in:

CString strNumbers;
for (int nNum=1; (nNum <= 50); nNum++) {
  CString strNum;
  strNum.Format ("%d ", nNum);
  strNumbers += strNum;
}
VERIFY (pDC->TextOut (10, 10, strNumbers));

/ravi

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Re: How to display series of numbers ?

Surivevoli8-Apr-06 0:29

Surivevoli

8-Apr-06 0:29

i don't understand final code :
VERIFY (pDC->TextOut (10, 10, strNumbers);
what's it mean ?

Lgx

Re: How to display series of numbers ?

ThatsAlok8-Apr-06 1:25

ThatsAlok

8-Apr-06 1:25

Surivevoli wrote:
VERIFY (pDC->TextOut (10, 10, strNumbers);

VERIFY means to verify that your statement is properly fired or not.. try you local copy of msdn for these keywords

Re: How to display series of numbers ?

Ravi Bhavnani8-Apr-06 4:03

Ravi Bhavnani

8-Apr-06 4:03

See this[^] link for information on the VERIFY and ASSERT macros.

/ravi

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Re: How to display series of numbers ?

Hamid_RT7-Apr-06 18:42

Hamid_RT

7-Apr-06 18:42

Hi Surivevoli,

CString Str;
int i=0;
while(i<50)
{
Str.Format("%d",i);
dc.SetBkMode(0);
dc.TextOut(X,50,Str,Str.GetLength());
X+=20;
i++;
}

Re: How to display series of numbers ?

Surivevoli8-Apr-06 0:04

Surivevoli

8-Apr-06 0:04

Thank you !
dc.SetBkMode(0)is uderstanded as dc.SetBkMode(TRANSPARENT)???
if before i draw a rectangle filled Red color
{i use CBrush ...},
i try release that command{dc.SetBkMode} and use TextOut() to draw number text on the rectangle, but i see nothing changed

if i want display formated "01","02","03",...
Can you help me ?

Lgx

-- modified at 6:34 Saturday 8th April, 2006

Re: How to display series of numbers ?

Hamid_RT8-Apr-06 1:13

Hamid_RT

8-Apr-06 1:13

Surivevoli,
CString Str;
int i=0;
while(i<50)
{
Str.Format("0%d",i);
dc.SetBkMode(0);
dc.TextOut(X,50,Str,Str.GetLength());
X+=32;
i++;
}

-- modified at 7:13 Saturday 8th April, 2006

Re: How to display series of numbers ?

Hamid_RT8-Apr-06 1:35

Hamid_RT

8-Apr-06 1:35

//Now test this code then again test without SetBkMode
CPaintDC dc(this);
CString Str;
int i=0;

dc.FillRect(CRect(0,50,800,80),&CBrush(RGB(120,120,200)));
while(i<50)
{
Str.Format("''0%d''",i);
dc.SetBkMode(0);
dc.SetTextColor(RGB(255,255,255));//White
dc.TextOut(X,55,Str,Str.GetLength());

X+=40;
i++;
}

Re: How to display series of numbers ?

Surivevoli9-Apr-06 12:47

Surivevoli

9-Apr-06 12:47

thank you very much !
what is the difference between CPaintDC and CClientDC ?
for you, what class should i use ?

for example :
i want draw a bitmap at coordinate of mouse when it is pressed Left

Re: How to display series of numbers ?

Hamid_RT9-Apr-06 18:45

Hamid_RT

9-Apr-06 18:45

Hi Surivevoli,
maybe it is some helpful to you for lbutton

http://www.codeproject.com/bitmap/DeskShoot.asp[^]

for difference
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_mfc_cpaintdc.asp[^]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_mfc_cclientdc.asp[^]

Re: How to display series of numbers ?

ThatsAlok7-Apr-06 23:42

ThatsAlok

7-Apr-06 23:42

Surivevoli wrote:
I want to display series of numbers from 1 to 50 (that handled by variable i) use CPaintDC.TextOut();Please help me !Thanks !

use wsprintf to add number in string and you can easily display that using the TextOut, but IMHO you should use CDC::ExtTextOut for same!

Re: How to display series of numbers ?

Surivevoli8-Apr-06 0:13

Surivevoli

8-Apr-06 0:13

what's difference between TextOut() and ExtTextOut() ???
why should you ExtTextOut()??

Flicker draw nightmare

Axonn Echysttas7-Apr-06 11:24

Axonn Echysttas

7-Apr-06 11:24

Hey everybody. I'm so pissed off and angry on this thing I'm working on, that I exhausted myself. Before angrily going to sleep, I'm going to tell you a

bit of this problem, maybe there are some bright minds out there which can figure out what I couldn't, all day.

I got a main window. One "Static" window in it (a label child) with some text. Even though the main window is HWND_TOPMOST, sometimes Window's OS tooltips get over it. In those cases, I need to repaint. So I invalidate and repaint. The problem is that the child flickers. If I do 10 repaits per second I see an annoying flicker. I've been killing myself all day with back-drawing in memory DCs but with no use grr. Whatever I do, that label keeps flickering! What can I do about it!? ANY IDEAS? ANY? ANY LITTLE THING. I'm desperate ::- (.

I was thinking 5 minutes ago to make a snapshot of the window in a HBITMAP and then simply BitBlt that each redraw. But probably the label will keep flickering since probably it's WM_PAINT code will execute before or after the main's window WM_PAINT (don't know the order of events right now) so I'm going to have worked in vain to construct that snapshots system.

-= E C H Y S T T A S =-
The Greater Mind Balance

Re: Flicker draw nightmare

Richard Andrew x647-Apr-06 13:33

Richard Andrew x64

7-Apr-06 13:33

Well, since you're inviting any ideas, I thought I would ask why you can't draw the text directly onto the client surface of the window without using a static?

Re: Flicker draw nightmare

Ravi Bhavnani7-Apr-06 15:41

Ravi Bhavnani

7-Apr-06 15:41

Axonn Echysttas wrote:
If I do 10 repaits per second I see an annoying flicker.

This is a common problem, especially in applications that need to constantly update a status string. A workaround is to use a "smart" SetText() method, as in:

void SmartSetText
  (CWnd* pWnd,
   CString strText)
{
  ASSERT (pWnd != NULL);
  ASSERT (pWnd->GetSafeHwnd() != NULL);
  CString strOldText;
  pWnd->GetWindowText (strOldText);
  if (strOldText.Compare (strText) != 0)
     pWnd->SetWindowText (strText);

}

It's a simple solution that works quite well.

/ravi

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Windows Form Application Problems

Bob X7-Apr-06 10:15

Bob X

7-Apr-06 10:15

I am migrating to Windows Forms Applications included in visual studio. However, I am having trouble getting the c++ code to interface with the controls on the Form. If anyone knows of any good (preferably c++) tutorials it would be greatly appreciated.
Thanks.

Registering File Extensions

Bob X7-Apr-06 7:37

Bob X

7-Apr-06 7:37

I am wondering what other developers think is the best way to register file extensions with windows.
Thanks.

Re: Registering File Extensions

Waldermort7-Apr-06 8:06

Waldermort

7-Apr-06 8:06

If by Register file extensions, you mean have a default icon and open with for a new file type, then this is also fairly easy. You need to add your file extension to the registry. This[^] might help you.

Re: Registering File Extensions

Bob X7-Apr-06 8:19

Bob X

7-Apr-06 8:19

Thanks

Re: Registering File Extensions

sasikumarselvarajan7-Apr-06 22:39

sasikumarselvarajan

7-Apr-06 22:39

hi i also want to know about this kind of reg assign if u can have any idea about this problem then tell to me aalso

thanks

sasikumar

Re: Registering File Extensions

David Crow7-Apr-06 9:14

David Crow

7-Apr-06 9:14

If using MFC, I would use EnableShellOpen() and RegisterShellFileTypes(), both of which are methods of CWinApp.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

File Load/Save Windows

Bob X7-Apr-06 7:20

Bob X

7-Apr-06 7:20

In MS Word or OpenOffice when you try to load a file you get a dialog window asking you to find the file you want to open. I am trying to implement that dialog window in a program, and I am wondering if there is a library or function call which would make my job easier that starting from scratch.
Thanks.

-- modified at 13:21 Friday 7th April, 2006

Re: File Load/Save Windows

Waldermort7-Apr-06 7:31

Waldermort

7-Apr-06 7:31

There are open/save dialogs in the common dialogs library. Have a look here[^]

Re: File Load/Save Windows

Bob X7-Apr-06 7:50

Bob X

7-Apr-06 7:50

Thanks

Re: File Load/Save Windows

David Crow7-Apr-06 8:24

David Crow

7-Apr-06 8:24

There's also MFC's CFileDialog class.

"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain

"There is no death, only a change of worlds." - Native American Proverb

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