C / C++ / MFC

CPaintDC out of Childview

31-Jul-06 2:13

CTreeCtrl supports only single selection na? then how can u set selection to more than one item?

nave

sdhtyjnniutnbjnhbghb31-Jul-06 0:08

sdhtyjnniutnbjnhbghb

31-Jul-06 0:08

Hello
I create a childview and also create process. I want to paint something in the childview. But I try to change the code in childview but some errors happen.

CString SelfTimer;
SelfTimer.Format(_T("%d"),_T("123"));
invalidateRect.SetRect(50,200,450,232);
HBRUSH hBrush = CreateSolidBrush(RGB(255,0,255));
::SetBkMode(g_hTimeMemDC, TRANSPARENT);
::FillRect(g_hTimeMemDC, &invalidateRect, hBrush);

::SetTextColor(g_hTimeMemDC,RGB(0,0,0));
::DrawText(g_hTimeMemDC, SelfTimer, -1, &invalidateRect, DT_LEFT | DT_TOP);
InvalidateRect(HWND(param), &invalidateRect, false);
DeleteObject(hBrush);

CPaintDC dc(HWND(param));
if(g_hTimeMemDC)

TransparentImage(dc.m_hDC,invalidateRect.left,invalidateRect.top,invalidateRect.Width(),invalidateRect.Height(), g_hTimeMemDC,invalidateRect.left,invalidateRect.top,invalidateRect.Width(),invalidateRect.Height(), RGB(255, 0, 255));

the build error is left of '.m_hDC' must have class/struct/union in TransparentImage function

who could I fix the issue or the way I program is wrong??

Any suggestion is useful!! Thanks!!

Re: CPaintDC out of Childview

Hamid_RT31-Jul-06 0:44

Hamid_RT

31-Jul-06 0:44

Whats Application type?
CPainDC is a class derived from CDC

WhiteSky

Re: CPaintDC out of Childview

sdhtyjnniutnbjnhbghb31-Jul-06 15:39

sdhtyjnniutnbjnhbghb

31-Jul-06 15:39

The application is to unuse the childview function but also want to paint in the childview. So I create a thread to paint out of childview.
When I push the button in childview, it set the event to the waitforsigleobject in ThreadProc and then paint the childview.

But I cannot build the codes successful, could u tell me what is wrong for the codes??

Any suggestion is useful!! Thanks!!

Re: CPaintDC out of Childview

Hamid_RT31-Jul-06 18:51

Hamid_RT

31-Jul-06 18:51

If you want to draw i think you need to WM_PAINT messageand if you use from this message i think you dont have problem.

WhiteSky

modeless dialog error

NoName II30-Jul-06 23:52

NoName II

30-Jul-06 23:52

tryin to create modeless dialog...
m_dlg->Create(CMyDlg::IDD, &m_tabctrl/*CTabCtrl*/);// ASSERT(pWnd->m_hWnd == NULL); // debug error

constructor:
CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
//: CDialog(CMyDlg::IDD, pParent)
{
this->Create(CMyDlg::IDD, pParent);
this->ShowWindow(SW_NORMAL);
}

Naveen31-Jul-06 0:04

31-Jul-06 0:04

NoName II wrote:
m_dlg->Create(CMyDlg::IDD, &m_tabctrl/*CTabCtrl*/);// ASSERT(pWnd->m_hWnd == NULL); // debug error

in the constructor it self the window is created. So why u gonne call Create again...?

And if u stick to the above code then code like this

if( m_dlg->m_hWnd )
{
m_dlg->DestroyWindow();
}
m_dlg->Create(CMyDlg::IDD, &m_tabctrl/*CTabCtrl*/);// ASSERT(pWnd->m_hWnd == NULL);

nave

Re: modeless dialog error [modified]

Sarath C31-Jul-06 0:10

Sarath C

31-Jul-06 0:10

NoName II wrote:
//: CDialog(CMyDlg::IDD, pParent)

You should remove this code from your constructor. because it will create a dialog with the IDD (resource ID) you are passing. that is why it failed.

see MSDN to know how to create modeless dialog?[^]

You can see the following in the documentation... that

For a modeless dialog box, you must provide your own public constructor in your dialog class.

SaRath.

"Where I am from, there is no plan B. So, take advantage of today becuase tomorrow is not promised. - 50 Cent"

My Blog | Understanding State Pattern

Naveen31-Jul-06 0:34

Re: modeless dialog error [modified]

31-Jul-06 0:34

Sarath. wrote:
because it will create a dialog with the IDD (resource ID) you are passing

i don't agree

see the code inside the constructor.

CDialog::CDialog(UINT nIDTemplate, CWnd* pParentWnd)<br />
{<br />
	AFX_ZERO_INIT_OBJECT(CWnd);<br />
<br />
	m_pParentWnd = pParentWnd;<br />
	m_lpszTemplateName = MAKEINTRESOURCE(nIDTemplate);<br />
	m_nIDHelp = nIDTemplate;<br />
}

is only sets the member varaiable.Wont create the dialog

nave

Sarath C31-Jul-06 0:48

Sarath C

31-Jul-06 0:48

yes once I had went through the code...
for the ease of undestanding I explained it that manner.

when creating a modal dialog, the error occurs at module state handling.

The function get called twice. first on the ctor and Create function

Anyway I dont know more about the same. It would nice informative if you share how a modal dialog asserts on the above scenario

-- modified at 6:48 Monday 31st July, 2006

SaRath.

"Where I am from, there is no plan B. So, take advantage of today becuase tomorrow is not promised. - 50 Cent"

My Blog | Understanding State Pattern

Naveen31-Jul-06 0:58

Re: modeless dialog error [modified]

31-Jul-06 0:58

check the code he posted.

in the constructor itself he creates the dialog. I.e

CMyDlg dlg; // Dialog is created in this line itself.

then he calls

dlg.Create(...) the dialog is already created, hence Assertion fails will come and most probably from the function

void AFXAPI AfxHookWindowCreate(CWnd* pWnd)
{
..........
ASSERT(pWnd->m_hWnd == NULL); // only do once
...........
}

nave

Sarath C31-Jul-06 1:00

Sarath C

31-Jul-06 1:00

So it's not part of CDialog. it's part of CWnd right? then how the creation with template name specified occurs?

SaRath.

"Where I am from, there is no plan B. So, take advantage of today becuase tomorrow is not promised. - 50 Cent"

My Blog | Understanding State Pattern

Naveen31-Jul-06 1:08

31-Jul-06 1:08

Sarath. wrote:
then how the creation with template name specified occurs?

i dont understand what u mean. In what ever way create the dialog, atlast ::CreateDialogIndirect(..) funtion is called.

nave

David Crow31-Jul-06 4:56

31-Jul-06 4:56

Sarath. wrote:
You should remove this code from your constructor.

That code is fine. It was the extra Create() call that was the problem. Note the assertion indicated exactly what the problem was (i.e., the window handle was non-NULL).

"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

Re: How to get Time Zone abbreviation from client?

Hamid_RT31-Jul-06 0:56

Hamid_RT

31-Jul-06 0:56

Hope I understood your question

<br />
CMyDlg *mydialog;<br />
mydialog=new CMyDlg(this);<br />
<br />
CMyDlg::CMyDlg(CWnd* pParent)<br />
: CDialog(CMyDlg::IDD, pParent)<br />
{<br />
Create(pParent);<br />
ShowWindow(SW_NORMAL);<br />
}<br />

WhiteSky

David Crow31-Jul-06 4:58

Re: How to get Time Zone abbreviation from client?

31-Jul-06 4:58

Sachin Gedam wrote:
Now I am facing a problem, how to get this abbreviation from client side?

Why aren't you using GetTimeZoneInformation()?

"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

Sachin Gedam31-Jul-06 20:49

Sachin Gedam

31-Jul-06 20:49

i want client's(web browser) time zone information.. now i store time zone related information in xml file and to access particular time zone information only time zone abbrevatoin is only the way

Sachin Gedam
(Software Engg.)
Pune India

Re: How to get Time Zone abbreviation from client?

David Crow1-Aug-06 3:10

Image Quality Loss on Extrating Image from CImageList

1-Aug-06 3:10

I don't quite follow you. Confused | :confused:

You wanted to know how to obtain the timezone using Visual C++. I suggested you use GetTimeZoneInformation(). Now you are talking about browsers and XML files. What exactly is it that you are looking for?

"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

MacGadger30-Jul-06 23:44

MacGadger

30-Jul-06 23:44

Hi..can anyone help me out of thiss???
i trying to load a a ImageList of 24Bit Color Bitmap , but when it draw on a Static Control ot Losses it Quality to 16 Color Frown | :(

im doing this to load a Image List :
/////////////////////////////////////////////////////////
[B]
CImageList m_imgList;
HIMAGELIST hImageList = ::ImageList_LoadImage ( AfxGetInstanceHandle(),
_T("d:\\total.bmp"),
64, 32,
RGB(255,255,255),
IMAGE_BITMAP, LR_LOADFROMFILE);

if(NULL != hImageList)
{
BOOL bRet = m_imgList.Attach(hImageList);
HICON m_hIco = m_imgList.ExtractIcon(0);

//CStatic Control on Dialog with SS_ICON
m_bBitmap.SetIcon(m_hIco);
}

/////////////////////////////////////////////////////////[/B]

i also tried to Draw the Extracted Image to Dialog box by calling the Funtion in CImageList

Draw(....); and DrawIndirect(...); and same problem done in this Also.. the Quality of Image loss Frown | :(

please please help me out of this Frown | :(

Re: Image Quality Loss on Extrating Image from CImageList

Christian Graus31-Jul-06 0:26

Christian Graus

31-Jul-06 0:26

It's my recollection that you need to create an empty image list and copy the 24 bit images into it in order for them not to revert to the lower bit depth.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

Re: Image Quality Loss on Extrating Image from CImageList

MacGadger31-Jul-06 3:30

MacGadger

31-Jul-06 3:30

thnx for reply... but can you tell me how to copy the 24bin image to CimageList.. and i want to Animate the Images, but if i load one by one image into the Imagelist in Startup initailization then it takes a lot resource and thr will be lots of bitmap image files in the skin folder. like if i want to create a animation of 20 frames then user have to create the 20 images , and i think its better if we use a Image List instead of loading a Single bitmap into imagelist without lossing qualit ! Frown | :(

please tell me a way out of this.. thnx Smile | :)

Re: Image Quality Loss on Extrating Image from CImageList

Christian Graus31-Jul-06 10:12

Christian Graus

31-Jul-06 10:12

There are actually articles on this site with 24 bit images in toolbars. It would be easier for you to read one of them than for me to repost the code here.

If you want to create a 20 frame animation, you will need to load 20 images, they take up the same size in an image list as they do in a bitmap.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog

serialize

tanarnelinistit30-Jul-06 23:43

tanarnelinistit

30-Jul-06 23:43

Can I use serialization on a RecordSet Class? To be more exact. I have a program which does all sorts of things with a database. Can I save the results of a querry in a file? And can I load them when I want?

Re: serialize

David Crow31-Jul-06 5:00