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Does this article help any?
http://flounder.com/screencapture.htm
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Thanks for you support.....
This is not a perfect solution for me because I want to save image as bitmap file and particularly for 256 colour image. Currently I can do it but some colour loss is there.
Thanks again
C.R.Naik
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Please help!! When I stop my application (appl1.exe), the process appl1.exe is not killed. Bellow is the loop that causes this problem.
for(;;){
Sleep(100);//pour alléger le CPU
DoEvents();
if (Playing==FALSE)
{
Playing=TRUE;
break;
} //end if
}// end for
where:
void DoEvents(void)
{
MSG msg;
while(PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
Thank you very much in advance.
Zakaria
azakaria_2000@voila.fr
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Have you initialised and set Playing correctly? If it isn't set to FALSE, then the for loop will never break.
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Thanks a lot!! You are right!!
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hi
i'm creating a new dialog box when a user clicks a button om my existing dialog, using code:
CDialog *cd = new CDialog(IDD_SHOW);
cd->DoModal(); //displayed modally
delete cd;
how do i set text in an edit box in the dialog box IDD_SHOW
(the id of editbox id IDC_E_DATA.)
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GetDlgItem( IDC_E_DATA)->SetWindowText("text");
NHM
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You have to make your own class derived from CDialog: when you have your resource editor open, open classWizzard and it will says that IDD_SHOW is a new resource and if you want to create a new class for it. Say yes and specify your class name (CMyDialog for example).
Click on the member variable tab and add a member variable for your edit box (IDC_E_DATA) of type CString (says m_MyString).
Then you have to add a public member function within your class to set the string:
CMyDialog::SetStringData(CString NewString)
{
m_MyString = NewString;
}
Then, in your OnInitDialog function, call UpdateData(FALSE);
Thats it, hope this helps
Cédric Moonen
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You could try to get a pointer to the edit ctrl or even make a public var that hosts the edit ctrl. But the best method (afaik) would be to create a public function inside the newly created dialog that receive a CString as a parameter.
Then from your code you should have to call that function and that would be done.
-----------------------------------------------------------------------------
Ways for setting the text (inside the function and in the implementation file of your dialog class):
1. you should create a CString var. related to the edit control using the class wizard, once that is done you can modify it's value in that previously named public function by setting the value and UpdateData(FALSE); call.
2. you could create a CEdit var. related to the edit control using the class wizard, once that is done you can modify it's value by using SetWindowText();.
3. you could try to search for your control inside the dialog and then set the text directly via SetWindowText();
hope this helps...
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btw, if you create a modal dialog, you need not create the variable on the heap. Just do
CDialog cd;
cd.DoModal();
regards
modified 12-Sep-18 21:01pm.
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Use SetDlgItemText(...) function in the OnInitDialog()
handler of the dialog box.
eg
SetDlgItemText(IDC_E_DATA,string_data);
R.Balachandran
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I need to develop a VC 6.0 dll routine to be called be VB.
The VB program has a hierarchy of form calling sequence.
MainForm -> FormP -> FormQ or
MainForm -> FormX -> FormY
My VC routine in dll will be called in ANY of these five forms. Is there any way for the VC routine dynamically obtain the handle of the MainForm no matter from which form it is called.
Thank you.
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wavewave wrote:
Is there any way for the VC routine dynamically obtain the handle of the MainForm no matter from which form it is called.
In short, no. What you'll need to do is pass it as a parameter.
In your VC routine, try this...
void MyFunc (HWND hWnd, ...);
And call it from a form in VB like this...
MyFunc Me.hWnd, ...
Jeremy Falcon
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Thanks for your information. As there are nested call in forms, I wish to avoid handle passing and wonder if GetWindow command can accomplish my requirement.
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The best (and most reliable) way is to pass its handle. I mean you can say frmWhatever.hWnd throughout the entire VB project because forms have global scope.
In the VC++ DLL using the GetWindow() method will not return the handle for the VB form. You can try using something like FindWindow(), but there's no guarantee you'll get the exact handle you want.
Jeremy Falcon
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How can I change the color of text and background within a SINGLE panel of the Status Bar?
I have use SB_SETBKCOLOR message but it changes the background color of ALL panels of the Status Bar and I cannot change the color of the text.
Thank you.
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The panes are not separate windows. Therefore they cannot be operated on individually, at least not that I know of.
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However some applications such as MS Visual C development can create this effect.
For MS Visual C, when I search a text pattern in the program source and it can found no more, a message with different background and text color is shown in left panel of status bar with the remaining status bar unchanged.
Please advise
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DavidCrow is right. At the heart of it all, it is one window. To achieve this effect it'll have to be owner drawn, and you control all of the painting yourself.
Jeremy Falcon
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This is probubly a bad idea but it does work.
void CTestStatusBar::OnPaint()
{
CStatusBar::OnPaint();
CRect rc;
GetItemRect(2,&rc);
rc.DeflateRect(2,2);
CClientDC CliDC(this);
CBrush brush(RGB(255,0,0));
CBrush* pOldBrush = CliDC.SelectObject(&brush);
COLORREF clr = CliDC.GetPixel(rc.left,rc.top);
CliDC.ExtFloodFill(rc.left,rc.top,clr,FLOODFILLSURFACE);
CliDC.SelectObject(pOldBrush);
}
Trust in the code Luke. Yea right!
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Dear John,
Thanks for your suggestion. My VC dll has no MFC and wonder if there is alternative for WIN32API coding.
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(You did not mension a DLL before.)
A lot of MFC is just wrappers for Win32 API functionality. The example I gave you was just an experiment to see how it could be done. If you wish to do it using a normal WinProc() then you will need to process the WM_PAINT message. My implimentation simply called the the default processor to allow it do its normal painting then requested (sent request messages) some information from the window, so I would be able to fill in (part of) the background [ExtFloodFill() may be to simple a solution].
Note: A Status bar is just a window containing some static controls (rectangles).
I do not know if this helped at all.
Trust in the code Luke. Yea right!
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I have an array of pixels, and each pixel is represented by a 16-bits value. The order is from left to right and top to bottom. How can i draw them out?
Thanks
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Hello every body
i try to put mor than 256 char in the CString viriable but i cannot, any help.
Best Regards 
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Can you provide a code snippet of how you are doing this?
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