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Try this:
// X and Y are in client space
void __fastcall MyApp::Memo1MouseMove(TObject *Sender, TShiftState Shift, int X, int Y)
{
int charPos = SendMessage(Memo1->Handle, EM_CHARFROMPOS, 0, MAKELPARAM((WORD)x,(WORD)y));
}
Mark Salsbery
Microsoft MVP - Visual C++
![Java | [Coffee]](https://www.codeproject.com/script/Forums/Images/coffee.gif)
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Yes! That worked, thanks a lot!
I had actually read somewhere that there was a bug in MAKELPARAM that would sometimes throw an exception but it seems to work fine for me, thanks again.
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LejonO wrote: I had actually read somewhere that there was a bug in MAKELPARAM that would sometimes throw an exception
I don't think that's possible - it's just a macro that does some bitwise
operations on the arguments 
Cheers,
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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hai all,
can anybody suggest me some api, using which, we can automate MS word?
i should be able to create a word file,
write some data to it,
insert images and grids to it.
is it possible?
suggestions please.
Suggestion to the members:
prefix your main thread subject with [SOLVED] if it is solved.
chandu.
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chandu004 wrote: can anybody suggest me some api, using which, we can automate MS word?
Yes the Word Object Model. You can find the documentation on the MSDN site. Realize that today there will likely be more documentation for .NET development than for native C++.
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Hello Friends,
I want my application to run in the background. And it displays only when some cliked in taskbar icon.
But I am not getting where to put the ShowWindow(hWnd,SW_HIDE); to hide the window.so that it doesn't appeare when It is loaded at startup.(I have set the registry, so that it runs at startup).
I have tryed to put it in following places but getting errors.
case WM_INITDIALOG:
{
//If I use the ShowWindow in the begining of the WM_INITDIALOG.
//I am geeting 02 as Error Code. Which Means "The system cannot find the file specified. "
if( ! ShowWindow(hWndDlg,SW_HIDE) ) //Hide the main window
dError = GetLastError();
...
...
//If I use the ShowWindow at the End of the WM_INITDIALOG.
//I am geeting 170 as Error Code. Which Means "The requested resource is in use."
if( ! ShowWindow(hWndDlg,SW_HIDE) ) //Hide the main window
dError = GetLastError();
}
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Why you dont set your program to minimize when its running?
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GauranG33 wrote: .(I have set the registry, so that it runs at startup).
can you please guide me how you have achieved this.
this is great because, i have been trying this since a couple of months but in vain.
and to your question, i have temporary solution.
1.set the dialog properties in such a way that, it does not have any border.
so that, it will be always running in the background, and gets displayed only if the user clicks the icon in the taskbar.
2.if you know, how to track the GetFocus and Lost Focus events, then, i can suggest a better solution.
gud luck.
Suggestion to the members:
prefix your main thread subject with [SOLVED] if it is solved.
chandu.
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Why not just create the main window without the WS_VISIBLE flag
so you don't have to worry about hiding it?
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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If this solution is taken... The controls can not be used while the window is invisible, but if you use other things as triggers (for example a timer) then the code will be called anyways.
Am I right?
But if you make the WS_VISIBLE away, and in some conditions need the window another time... can you make it visible with the ShowWindow (TRUE) ??? Or won't be posible because the property has not been set?
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
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It just creates the window hidden. It won't get any messages
from user like mouse messages because it's not visible. It will still
get messages from timers or messages you send to it.
It's just hidden...ShowWindow(SW_SHOW) will make it visible.
Hidden windows are common. The CSocketWnd used by the
CAsyncSocket class is an example of a hidden window.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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Ok, thank you.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
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See here.
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hey Thanx David.
I see the Solution you have suggested, but the problem is the solution is for MFC Application while I am using Win32 API .
Can You help me with this. ???
I have tried somthing like this. but the Same thing. Errors,
I have Taken the Global Boolean flag First. But dont know where to initialize it to True. So I have initialize it in WM_INITDIALOG.
case WM_WINDOWPOSCHANGING:
if(First)
{
if ( ! ShowWindow(hWndDlg,SW_HIDE) )
dError = GetLastError();
First = FALSE;
}
break;
case WM_INITDIALOG :
First = TRUE;
...
...
break;
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GauranG33 wrote: I have tried somthing like this. but the Same thing. Errors,
Because you did not remove the SWP_SHOWWINDOW flag.
"A good athlete is the result of a good and worthy opponent." - David Crow
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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I have got the Idea to do do this.
I am using the timer in WM_INIT for about 100 msec. and in the WM_TIMER I am using ShowWinow() to hide the Dialog.
Currently It is working fine. But I just want to know will this work all the time. Or there will be the case it can fail.
the Code I am using is as follows
case WM_TIMER:
ShowWindow(hWndDlg, FALSE);
KillTimer(hWndDlg,0);
break;
case WM_INITDIALOG:
...
...
SetTimer(hWndDlg,0,100,0);
break;
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I'm still wondering why this has to be so complicated.
If you never show the window to begin with then there's
no reason to go through all of this to hide it.
Mark
Mark Salsbery
Microsoft MVP - Visual C++
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I have created a dynamic list box control in my dialog based application.
This list shows threes item but does not response to button click or selection change.
Using Wizard, I can not add any handler function for this because it does not exist before program run.
How Can I add handler for this dynamic control so that I can respond to button click or selection change.
Do I need to use derived class to do this? Is there any way without using derived class.
Simple code example will be great. I am new in VC++.
Thank you.
msc
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How did you make it can you show your code?
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simple,
1.create a static listbox control,
2.add the event handler to that listbox control,
3.then observe dodataexchange and(or) beginmessagemap sections in your dialog.
4.what ever lines of code are added newly related to your static control,
5.duplicate them and alter the duplicated lines as per your dynamic control.
the above suggestions only give you a overview of how to do it.
you may have to put some efort and your own intelligense there, to sort it out.
and after that, you may get some more doubts like,
if i create the dynamic controls as an array, then how?
try to solve them yourself or post back.
gud luck.
Suggestion to the members:
prefix your main thread subject with [SOLVED] if it is solved.
chandu.
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Thank you for your nice suggession. I tried to follow what you said. I have a member variable of CListBox pointer and I have created dynamic listbox in OnInitDialog() but I think DoDataExchange called before calling OnInitDialog and does not find the window handle and crushes.
Here is what I did: Please let me know if I did anything wrong based on your suggesstion. ====================
1.declared in header file
protected:
<br />
<br />
HICON m_hIcon;<br />
CListBox* m_dynalist;
virtual BOOL OnInitDialog();<br />
afx_msg void OnPaint();<br />
afx_msg HCURSOR OnQueryDragIcon();<br />
afx_msg void OnButton1();<br />
afx_msg void OnSelchangeList();
afx_msg void OnSelchangeDynaList();
<br />
<br />
DECLARE_MESSAGE_MAP()<br />
<br />
2. In .cpp file<br />
void CTestdynDlg::DoDataExchange(CDataExchange* pDX)<br />
{<br />
CDialog::DoDataExchange(pDX);<br />
DDX_Control(pDX, IDC_LIST, m_list);
DDX_Control(pDX, IDC_LISTTEST, *m_dynalist);
DDX_Control(pDX, IDC_EDIT, m_edit);<br />
DDX_Text(pDX, IDC_EDIT, m_editstr);<br />
<br />
}<br />
<br />
BEGIN_MESSAGE_MAP(CTestdynDlg, CDialog)<br />
ON_WM_PAINT()<br />
ON_WM_QUERYDRAGICON()<br />
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)<br />
ON_LBN_SELCHANGE(IDC_LIST, OnSelchangeList)
ON_LBN_SELCHANGE(IDC_LIST, OnSelchangeDynaList)
<br />
<br />
END_MESSAGE_MAP()<br />
<br />
void CTestdynDlg::OnSelchangeDynaList() <br />
{<br />
CString str;<br />
int isel = m_dynalist->GetCurSel();<br />
m_dynalist->GetText(isel,str);<br />
m_editstr = str;<br />
m_edit.SetWindowText(str);<br />
<br />
}<br />
msc
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wait for some time may be 30 minutes,
i shall have my dinner, refer my backups and reply exactly.
meanwhile try it ur self.
Suggestion to the members:
prefix your main thread subject with [SOLVED] if it is solved.
chandu.
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s196675m wrote: I think DoDataExchange called before calling OnInitDialog
It's called BY CDialog::OnInitDialog().
You need to do your creation before calling the base class
OnInitDialog(), and also check for a valid pointer in your
DoDataExchange() override...
void CTestdynDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_LIST, m_list);
<font color="Red">if (m_dynalist)</font>
<font color="Red">{
</font> <font color="Red">
<font color="Red">}</font>
DDX_Control(pDX, IDC_EDIT, m_edit);
DDX_Text(pDX, IDC_EDIT, m_editstr);
}
BOOL CTestdynDlg::OnInitDialog()
{
<font color="Red">
<font color="Red">
CDialog::OnInitDialog();
}
Last modified: 55mins after originally posted --
Mark Salsbery
Microsoft MVP - Visual C++
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if mark's suggestion, worked for you, then its fine.
byt in my application, i have not taken a pointer *m_dynalist, instead, i took normal variable(in my case, array).it worked quite comfortably for me.
s196675m wrote: DDX_Control(pDX, IDC_LISTTEST, *m_dynalist);//dynamic listbox
s196675m wrote: ON_LBN_SELCHANGE(IDC_LIST, OnSelchangeDynaList)// dynamic listbox
in both the above cases, instead of IDC_LISTTEST, i have used some unique number like, for example, 10001
and i have used the same number while creation in the initdialog.
what i observe in your case is, you are declaring it as pointer and you are not creating memory for it using new.
if iam right, try creaitng the memory and see or use normal variable instead of pointer.
any more clarifications required?
Suggestion to the members:
prefix your main thread subject with [SOLVED] if it is solved.
chandu.
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