C / C++ / MFC

16-Sep-06 1:13

Hello,
i want to make my edit boxes and labels transparent to show my own bitmap;

can somene help me? D'Oh! | :doh:

_AnsHUMAN_ 16-Sep-06 1:22

16-Sep-06 1:22

fx9200 wrote:
i want to make my edit boxes and labels transparent to show my own bitmap;

Override the OnCtlColor method:
Ex:

if(pWnd->GetDlgCtrlID()==/*ID of the item*/)
	{		
		COLORREF clrStruct=RGB(/*back ground color*/);
		hbr = CreateSolidBrush(clrStruct);		
		pDC->SetBkColor(clrStruct);
		pDC->SetTextColor(RGB(0,0,0));
	}

You can do something like this.
Try this....

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

fx920016-Sep-06 1:32

16-Sep-06 1:32

I didn't find that method
it ssems it cannot be added by class wizard !

_AnsHUMAN_ 16-Sep-06 1:36

16-Sep-06 1:36

fx9200 wrote:
I didn't find that method

What version of editor are you using. VS6.0 / VS .NET 2003 or something else.

fx9200 wrote:
it ssems it cannot be added by class wizard !

You can also add the code with your hands
In the header file
HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
In the .cpp file
HBRUSH CadfDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
// Add your code here
return hbr;
}
In Message map of your class
ON_WM_CTLCOLOR()

But avoid doing so...

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

fx920016-Sep-06 1:49

16-Sep-06 1:49

thanks,
it worked;

but with this i can't set a bitmap as a back round of the edit box;

_AnsHUMAN_ 16-Sep-06 2:05

16-Sep-06 2:05

	HBRUSH CYourDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	CBrush m_Brush;
	m_pBrush.CreateStockObject (NULL_BRUSH);
	if(pWnd->GetDlgCtrlID()==IDC_STATIC1/*ID of the item*/)
	{		
		pDC->SetBkMode (1);
		return (HBRUSH)mBrush;
	}
	return hbr;
}

I hope that your problem would be solved with this.

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Hamid_RT16-Sep-06 1:39

Hamid_RT

16-Sep-06 1:39

if you use VS2003 you can use from property window for insert WM_CTLCOLOR yto your class.

WhiteSky

fx920016-Sep-06 1:51

16-Sep-06 1:51

i'm in the end of the project;

and i dont think its a good idea to convert it automatically with wizard;

Hamid_RT16-Sep-06 1:28

Hamid_RT

16-Sep-06 1:28

See Creating a Transparent Editbox with No Redraw Problems[^] and CEdit & CStatic Transparency Control[^] for transparent editbox

WhiteSky

fx920016-Sep-06 1:38

Time Delay !!!! New To C++

16-Sep-06 1:38

thanks , i'm testing it

Mark_Murphy16-Sep-06 1:04

Mark_Murphy

16-Sep-06 1:04

Hi

Can anyone tell me if it is possible to use a time delay when working on a console application.
Say if I needed to wait 3 seconds before displaying output to the screen.

eg:
char name;
cin << name;
// delay output for 3 seconds ***
cout<< name;

Web searches have proved useless so if anyone has any useful links or code it would be greatly appreciated !!!!!

Thanks in advance.

I really hate this darn machine;
I wish that they would sell it.
It won't do what I want it to,
but only what I tell it.
~Author Unknown

Re: Time Delay !!!! New To C++

_AnsHUMAN_ 16-Sep-06 1:18

Re: Time Delay !!!! New To C++

16-Sep-06 1:18

Mark_Murphy wrote:
needed to wait 3 seconds

Use Sleep(3000);
1 milli second=(1/1000) seconds
However, avoid using Sleep(/*time interval*/).

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Mark_Murphy16-Sep-06 1:31

Mark_Murphy

16-Sep-06 1:31

Ahhhhhhh

Thanks AnShumAn

Tried the Sleep earler but was using the (s) in lower case instead of upper.

Cheers for the help, just need to read things better next time.

I really hate this darn machine;
I wish that they would sell it.
It won't do what I want it to,
but only what I tell it.
~Author Unknown

How to avoid view flashing when resizing window?

jipai16-Sep-06 0:53

jipai

16-Sep-06 0:53

Hi there,
I created a dummy MFC app in VS2005. All I want to do is to paint the view black color. When I resize the window, the view is flashing white color all over. I thought painting to an off-screen DC then calling BitBlt could avoid that. Confused | :confused:

Can someone please tell me how? Thanks a lot!

This is my OnDraw function.

void CtestView::OnDraw(CDC* pDC)
{
	CtestDoc* pDoc = GetDocument();
	if (!pDoc)
		return;

	CDC offScreenDC;
	CBitmap offScreenBitmap;
	CBitmap * pOldBitmap = NULL;
	CRect clientRect;
	GetClientRect(clientRect);

	// draw to offscreen bitmap for fast looking repaints
	if (offScreenDC.CreateCompatibleDC(pDC))
	{
		if (offScreenBitmap.CreateCompatibleBitmap(
				pDC,
				clientRect.Width(),
				clientRect.Height()
				)
			)
		{
			pOldBitmap = offScreenDC.SelectObject(&offScreenBitmap);
		}
	}

	// paint background
	CBrush brush;
	CBrush *pOldBrush = NULL;
	if (!brush.CreateSolidBrush(RGB(0, 0, 0)))
		return;
	pOldBrush = offScreenDC.SelectObject(&brush);
	offScreenDC.FillRect(clientRect, &brush);

	pDC->BitBlt(
		clientRect.left,
		clientRect.top,
		clientRect.Width(),
		clientRect.Height(),
		&offScreenDC,
		0,
		0,
		SRCCOPY
		);

	// restore
	offScreenDC.SelectObject(pOldBrush);
	offScreenDC.SelectObject(pOldBitmap);
}

Re: How to avoid view flashing when resizing window?

prasad_som16-Sep-06 1:04

Re: How to avoid view flashing when resizing window?

16-Sep-06 1:04

Override OnEraseBkgnd and do nothing, return simply true.
like this;

void CtestView::OnEraseBkgnd(CDC* pDC)
{
// CView::OnEraseBkgnd(pDC); comment base class call
 return TRUE;
}

Prasad
Notifier using ATL | Operator new[],delete[][^]

jipai17-Sep-06 15:15

jipai

17-Sep-06 15:15

Great! I'll try that tonight and report the result. Thanks!

Re: How to avoid view flashing when resizing window?

jipai18-Sep-06 6:28

jipai

18-Sep-06 6:28

Awesome, it works like a charm! Thanks so much!

Re: How to avoid view flashing when resizing window?

prasad_som18-Sep-06 19:51

How to access a function in another class file

18-Sep-06 19:51

My pleasure. Smile | :)

Prasad
Notifier using ATL | Operator new[],delete[][^]

vc++_fragrance15-Sep-06 23:10

vc++_fragrance

15-Sep-06 23:10

Hi,
By using MFC Appwizard I have created a project.
Say FirstApp as an SDI application and chosen the Header files only as databasesupport.

I wrote a function in FirstAppView class to get the database connection.

After that I have inserted another Dialog resource and added a few controls for it and then added a new class for it.

Now I want to invoke the function which I wrote in FirstAppView class.

Can you plz say How can I do that?

Thanks in advance.

Re: How to access a function in another class file

prasad_som15-Sep-06 23:48

Re: How to access a function in another class file

15-Sep-06 23:48

Does this help;

AfxGetMainWnd()->GetActiveView()->YourFunction();

Prasad
Notifier using ATL | Operator new[],delete[][^]

vc++_fragrance17-Sep-06 19:55

vc++_fragrance

17-Sep-06 19:55

Hi Prasad,
Actually I tried this way but I got an error saying that my application class is not derived from CWnd.

Can u say how to overcome it.

Thanks in advacne.

Re: How to access a function in another class file

prasad_som17-Sep-06 20:36