C / C++ / MFC Discussion Boards

Re: Update only a particial area of a View with UpdateAllViews(...)

CrocodileBuck11-Jul-08 6:33

CrocodileBuck

11-Jul-08 6:33

Hi,
yes thats right but i tried it with

CRect MyRect(0,0, 200, 150);
CObject* pHint = (CObject*)&MyRect;

and this fails too!

Manx thanx and best regards
Croc

Re: Update only a particial area of a View with UpdateAllViews(...)

Mark Salsbery11-Jul-08 6:36

Mark Salsbery

11-Jul-08 6:36

What does "fails" mean?

Doesn't compile? Crashes at runtime? Nothing happens?

It marks the area for updating. The next WM_PAINT message will
update that area. If the same exact data is drawn as on the last WM_PAINT,
you're not going to see a difference.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Update only a particial area of a View with UpdateAllViews(...)

CrocodileBuck11-Jul-08 6:44

CrocodileBuck

11-Jul-08 6:44

I Mean nothin happens!

Ahhh the InvalidateRect() hasn't to do something with the text printed in the RTFCtrl on the View ???!!!

What can i do that i can see a little difference ?????

Many many thanx for your help and best regards
Smile | :)

Croc

Re: Update only a particial area of a View with UpdateAllViews(...)

Mark Salsbery11-Jul-08 6:48

Mark Salsbery

11-Jul-08 6:48

CrocodileBuck wrote:
What can i do that i can see a little difference ?

You need to change something between calls to UpdateAllViews() if
you want to see something different in the view. What are your views
drawing? Something from the document? If so, change the document.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Update only a particial area of a View with UpdateAllViews(...)

CrocodileBuck11-Jul-08 6:52

CrocodileBuck

11-Jul-08 6:52

I will only print Text (SetWindowText) in the View !!!????

Many many thanks and best regards
Croc

Re: Update only a particial area of a View with UpdateAllViews(...)

Mark Salsbery11-Jul-08 6:59

Mark Salsbery

11-Jul-08 6:59

Only you know what's going on in your views.

The text data must be coming from somewhere...
Change it and update the views!
And make sure changing it doesn't already cause an update implicitly,
or you still won't see anything.

If the view is a window not in your control (where you don't do the painting,
like an edit control), then you may not have control over updating regions of
the window.

If you are doing the painting in your view, look at the invalid rect in the WM_PAINT
handler - you should see that your update rect is there. What you do with that info in
your painting code is up to you.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Update only a particial area of a View with UpdateAllViews(...)

CrocodileBuck11-Jul-08 7:04

CrocodileBuck

11-Jul-08 7:04

Ok. Thanx, iwill try it !

Tomorrow i will mail my success or ... ;(

Wink | ;)

Many many thanx and best regards
Croc

Re: Update only a particial area of a View with UpdateAllViews(...)

led mike11-Jul-08 8:52

led mike

11-Jul-08 8:52

You are in deep deep sh*t at this point dude. Maybe you should just treat the buck to a Filet-O-Fish and call it a day. Big Grin | :-D

I'm outta here, have a great weekend! Beer | [beer]

led mike

Re: Update only a particial area of a View with UpdateAllViews(...)

Mark Salsbery11-Jul-08 9:01

Mark Salsbery

11-Jul-08 9:01

Cheers!

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Update only a particial area of a View with UpdateAllViews(...) [modified]

Bram van Kampen12-Jul-08 14:56

Bram van Kampen

12-Jul-08 14:56

The Server stalled posting this one, (and crashed my Laptop) Tought it was Lost.

Good for You, Enjoy

Bram van Kampen

modified on Saturday, July 12, 2008 9:02 PM

Re: Update only a particial area of a View with UpdateAllViews(...)

Bram van Kampen12-Jul-08 15:02

Bram van Kampen

12-Jul-08 15:02

led mike wrote:
I'm outta here, have a great weekend!

Just Enjoy, You Deserve.

Wish I was there thoug,

Regards Mad | :mad:

Bram van Kampen

Re: Update only a particial area of a View with UpdateAllViews(...)

David Crow11-Jul-08 7:29

David Crow

11-Jul-08 7:29

What class is your view derived from?

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Update only a particial area of a View with UpdateAllViews(...)

CrocodileBuck11-Jul-08 23:12

CrocodileBuck

11-Jul-08 23:12

fom CView !

Re: Update only a particial area of a View with UpdateAllViews(...)

David Crow12-Jul-08 7:19

David Crow

12-Jul-08 7:19

CrocodileBuck wrote:
fom CView !

And you're using SetWindowText()? I've not ever tried that, but it just seems odd.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Update only a particial area of a View with UpdateAllViews(...)

CrocodileBuck11-Jul-08 6:19

CrocodileBuck

11-Jul-08 6:19

Sry, i was too fast, but your version won't work Too !

Thax for all your help & best regards
Croc

How to find ActiveX Control corresponding file in VC9?

followait11-Jul-08 3:56

followait

11-Jul-08 3:56

I inserted a shockwaveflash activex control in my project, and it works.
How to find the file (eg. .ocx)? The "Insert ActiveX Control" dialog shows no path info.

system

CArray problem

Trupti Mehta11-Jul-08 3:37

Trupti Mehta

11-Jul-08 3:37

Working with EVc++4 on ARMV4I device.
I have an CArray :

 CArray<CStockEntry, CStockEntry> stockArr;
void SetCStockEntryArr(CArray<CStockEntry, CStockEntry>& arr);
CArray<CStockEntry, CStockEntry>& GetStockEntryArr();

in my .cpp:

void DeptStock::SetCStockEntryArr(CArray<CStockEntry, CStockEntry>& arr) {   
 for (int i=0; i <= arr.GetUpperBound(); i++) {   
  CStockEntry se = arr.GetAt(i);   
  this->stockArr.Add(se);   
 }   
  
 CString s1 = _T("Size of copied Array & Org:");   
 s1.Format(_T("%s %d %d"), s1, stockArr.GetSize(), arr.GetSize());  // This shows same number of arr & stockArr GetSize 
 AfxMessageBox(s1);   
  
 s1.Empty();   
 return;   
}   
  
CArray<CStockEntry, CStockEntry>& DeptStock::GetStockEntryArr() {   
 CString s1 = _T("Size of Returning Array:");   
 s1.Format(_T("%s %d"), s1, stockArr.GetSize());  // This shows 0 as GetSize 
 AfxMessageBox(s1);   
  
 s1.Empty();   
  
 return this->stockArr;   
}

In between Set & Get I don't perform any operations on the stockArr.
Why is while set, it is stored properly, but while retriing I get an empty array.

Any help is appreciated.

Thanks

Terry

Re: CArray problem

Mark Salsbery11-Jul-08 4:59

Mark Salsbery

11-Jul-08 4:59

I tested your code as follows:

struct CStockEntry
{
	int entry;
	CStockEntry(int i = 0)  {entry = i;}
};

class DeptStock
{
public:
	CArray<CStockEntry, CStockEntry> stockArr;   

	void SetCStockEntryArr(CArray<CStockEntry, CStockEntry>& arr) 
	{   
		for (int i=0; i <= arr.GetUpperBound(); i++) 
		{   
			CStockEntry se = arr.GetAt(i);   
			this->stockArr.Add(se);   
		}   

		CString s1 = _T("Size of copied Array & Org:");   
		s1.Format(_T("%s %d %d"), s1, stockArr.GetSize(), arr.GetSize());  // This shows same number of arr & stockArr GetSize 
		AfxMessageBox(s1);   

		s1.Empty();   
		return;   
	}   

	CArray<CStockEntry, CStockEntry>& GetStockEntryArr() 
	{   
		CString s1 = _T("Size of Returning Array:");   
		s1.Format(_T("%s %d"), s1, stockArr.GetSize());  // This shows 0 as GetSize 
		AfxMessageBox(s1);   

		s1.Empty();   

		return this->stockArr;   
	}   
};

...

	CArray<CStockEntry, CStockEntry> stockArr;
	stockArr.Add(CStockEntry(0));
	stockArr.Add(CStockEntry(1));
	stockArr.Add(CStockEntry(2));
	stockArr.Add(CStockEntry(3));
	stockArr.Add(CStockEntry(4));
	DeptStock test;
	test.SetCStockEntryArr(stockArr);
	CArray<CStockEntry, CStockEntry> &stockArrRef = test.GetStockEntryArr();

It works fine.

What aren't you showing?

FWIW, calling Empty() on those local CStrings is unnecessary.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: CArray problem

Trupti Mehta12-Jul-08 0:57

Trupti Mehta

12-Jul-08 0:57

Hi Mark,

If I add objects in array like you are adding, then my code is working perfect. But I am working different way. In my GUI, I add objects in the array in my GUI CPage4 (m_page4 member var), then on Ok button I create DeptStock deptStock object & SetCStockEntryArr(m_page4.GetStockEntries()).
TILL this things are fine.
Then I pass deptStock to a file to store the object details in file.
g_dbOperations.Write_StockTextFile(deptStock);

// WRITE Departments MAP TO FILE
void DbOperations::Write_StockTextFile(DeptStock deptStock) {
	
        .........  
	CString toWrite;
	int index = -1;

	OperatorDetails od = deptStock.GetOperator();
	DeptDetails dd = deptStock.GetDept();
	CArray<cstockentry,>& stockArr = deptStock.GetStockEntryArr();  // This returns 0 sizxe array
//	stockArr = deptStock.GetStockEntryArr();

/*	CStockEntry cse1(2.2f, 5, 10.2f);
	CStockEntry cse2(5.0f, 3, 15.0f);
	stockArr.Add(cse1);
	stockArr.Add(cse2);
*/	
	CString str(_T("Stock Size:"));
	str.Format(_T("%s %d \n %s %d"), str, stockArr.GetSize(), _T("Dept Stock Arr "), deptStock.GetStockEntryArr().GetSize());   
	AfxMessageBox(str);   // Both DISPLAYS 0

This is how the flow is. If I remove the above comments of adding objects od CStockEntry to stockArr, it gives proper results. But I have already added the array elements & not able to retrive.

I have given a better & clear picture of the flow of my program & error point. Hope you can help me out to track the problem.

Thanks

Terry

Re: CArray problem

Mark Salsbery12-Jul-08 7:47

Mark Salsbery

12-Jul-08 7:47

Trupti Mehta wrote:
If I add objects in array like you are adding, then my code is working perfect.

That should help you track it down. If your array is empty, debug the code
that's supposed to populate it...why are no items added?

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

How can I display a cursor for the text?

danginkgo11-Jul-08 3:35

danginkgo

11-Jul-08 3:35

I am displaying some text in a window.
I want to have a text cursor when I click the mouse left button.
How can I do this?

danginkgo

Re: How can I display a cursor for the text?

led mike11-Jul-08 5:22

led mike

11-Jul-08 5:22

danginkgo wrote:
I am displaying some text in a window.
I want to have a text cursor when I click the mouse left button.
How can I do this?

Well it's called a Caret, but if you are trying to create your own text editing window you have a lot of work to do.

SetCaretPos[^]

led mike

Regarding Application.ScreenUpdating() - Draw Graph in Excel

vimaltiwari11-Jul-08 3:35

vimaltiwari

11-Jul-08 3:35

Hi,
i want to draw the graph in excel by parsing file,
so when i have parsed the data, in that period i want to hide the construction of the graph between the parsing process completion,In Excel we can write this script to hide the Macro:
Application.ScreenUpdating = false or true,

and between this processing period we can show message in status bar by using this
Application.StatusBar = "Now processing File "
Application.StatusBar = false;

i want to do this in the C++, Is that any method available in that which can corelate the same functionality as like as excel scripting..

Thanks in advance,

Regards,
Vimal

Re: Regarding Application.ScreenUpdating() - Draw Graph in Excel

led mike11-Jul-08 5:25

led mike

11-Jul-08 5:25

The Office products expose COM interfaces. For Excel it's called the Excel Object Model. Each Version it changes to some degree so you should use the correct version. Here is a link to one

http://msdn.microsoft.com/en-us/library/aa141044(office.10).aspx[^]

led mike

EnterCriticalSection() problem on Vista

SRKSHOME11-Jul-08 3:31

SRKSHOME

11-Jul-08 3:31

Hi,
I have thread running. It will EnterCriticalSection at some poit. This works perfectly alright on Windows XP or lower versions of OS. But it is not working on Vista. Sometime it works but sometimes it doesn't. It always stuck at EnterCriticalSection(). It is not able to get the ownership. I have written code like:

pReadList->Request(); //This function calls EnterCriticalSection(. But it will always stuck on Vista.

if( some condition )
{
//some action
}
pReadList->Release() //This function calls LeaveCriticalSection() API.

Please help.
Thanks

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.