|
Hi, I'm trying to create a simple Listbox, using Win32, no MFC.
void CreateSpilList()
{
ProgramList = CreateWindow (TEXT ("listbox"), NULL,
WS_CHILD | WS_VISIBLE | LBS_STANDARD,
5, 5,
100,
100,
hwnd, (HMENU)10,
GetModuleHandle(NULL),
NULL) ;
}
I've created a simple function that should create the listbox.
case WM_CREATE:
{
CreateSpilList();
break;
}
The WM_CREATE Message should create my Listbox, but it wont, nothing happens.
But, the strange thing is, if i remove CreateSpilList(); and inserts whats in the function:
like so.
case WM_CREATE:
{ ProgramList = CreateWindow (TEXT ("listbox"), NULL,
WS_CHILD | WS_VISIBLE | LBS_STANDARD,
5, 5,
100,
100,
hwnd, (HMENU)10,
GetModuleHandle(NULL),
NULL) ;
break;
}
It works, why can't I create my listbox by using a function like my CreateSpilList() ???
It make no sense, even if i inline the CreateSpilList() nothing happens.
Can anyone give me an answer on this strange "bug" ?? 
Thanks
|
|
|
|
|
is the hwnd parent window "global" or only local to the function that contains the WM_CREATE ?
Max.
|
|
|
|
|
The hwnd is global i think, it's the parent.
|
|
|
|
|
I am trying to write a Control-Panel-like application with a background bitmap, kind of like a desktop picture. I want to put Icons on it, but when I do, I can still see the tan background of the window in the Icon background. By the way, the application is dialog-based. How do I get rid of that?
-- Steve
|
|
|
|
|
you need to use a color key and either use TransparentBlt, or ( if you need W95 support ), check out the replacement I wrote for Windows Developers Journal a year or two ago.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002
|
|
|
|
|
I searched all over the web for a code to mute the microphone and I can't find one.
I need a code that will mute the microphone just like muting on the Mixer
Any idea?
Thanks.
|
|
|
|
|
|
I'm writing a practice-program that sends key press to another window (obtained HWND of that window already). I've looked into MSDN for WM_KEYDOWN and WM_KEYUP messages but got a little confused by the sheer complexity of wParam and lParam. I think I just need a little real example (which I failed to find any) to get ahold of that.
Could someone please gimme the sample code which will send key press for character '?'(question mark) to a window, suppose hTestWnd is the valid HWND of that window. Thanks a lot.
|
|
|
|
|
::SendMessage(hTestWnd, WM_CHAR, (WPARAM) '?', (LPARAM) 0);
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002
|
|
|
|
|
Great, how about sending those special keys, say, VK_F12?
Thank you again.
|
|
|
|
|
I'm relying on the implicit conversion of int to char here, I suspect the second parameter is where you'd specify if it was an F key, unless that's one of the keys sent with the SYSKEY stuff. I really don't know - how would you see an F12 in an edit box anyhow ?
http://msdn.microsoft.com has full docs on WM_CHAR, that's where I looked in the first place.
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002
|
|
|
|
|
Yeah I know i can't see F12... but as I said at beginning I was doing some practice so it's just that, a practice.
Anyway, I will dig into MSDN again and thanks very much for your help.
|
|
|
|
|
Can someone show me how to use MCI control on a dialog application? I need to:
(a) Play an avi file with movie window frame within the dialog itself...
(b) And I also need to STOP at the last frame.
I downloaded a sample from MSDN, but it's neither an SDI nor dialog application. I know that the VB code for the control is just a few lines - hope it's the same for VC.
Help!
norm
|
|
|
|
|
I'm trying to find away to print the flexgrid with the lines. Is there away of doing this.
|
|
|
|
|
Hi All,
I'm developing an MFC application using Doc/View and within this application I am making calls to a DLL. My problem is the DLL is asking for the:
Current window handle
Parent window handle
current HINSTANCE
How the heck do I find these things in MFC? I'm trying to get this information in a class that is derived from CFormView. Any help in this matter would be extremely helpful. Thank you in advance
Danielson
Slower is Faster
|
|
|
|
|
Current Window Handle -> *this or this->m_hWnd
Parent Window Handle -> *(this->GetParent());
Current HInstance -> AfxGetInstanceHandle();
Christian
No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002
Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002
During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002
|
|
|
|
|
I created an application that displays user defined functions, and provides for performing various operations on them. I recently added a cursor (vertical line) the user can move around on the graph, and I display the x and y values on the status bar. I thought it would be nice to give the user the option to display the x and y values in a small user moveable window in the client area of the graph. The only way I've been able to implement this is by creating a dialog with a CStatic on it, then writing the values to the CStatic item in the dialog. Unfortunately, the dialog is much larger than needed to display this text, but I haven't been able to "create" a CStatic object that is moveable! I've done this in the past by having the parent of the CStatic object (I actually used a button) watch for mouse movement and button presses in the CStatic rect, but it was more work than I think is necessary.
Is there any way to create a CStatic object without a title bar that is moveable by the user? I want it to be just large enough to hold the text.
Whew... Thanks in advance
|
|
|
|
|
|
Thanks for the reply...
That's what I've done in the past. I thought by proper selection of window styles on creation of the CStatic (WS_???) I could get that functionality for free!
Guess I'll just have to brute force it again.
|
|
|
|
|
Hi,
I use a stored procedure for retrieve some recordset from my database.
I can calling my stored procedure but I can read my Recordset.
please find my sample :
_CommandPtr pCmd2("ADODB.Command");
pCmd2->ActiveConnection = m_pConn2;
//Store procedure
pCmd2->CommandText = "CheckNumSeg2";
pCmd2->CommandType = adCmdStoredProc;
pParam2 = pCmd2->CreateParameter ( _bstr_t ("TEST"), adVarChar,
adParamInput, strFileName.GetLength (), (_bstr_t) strFileName);
pCmd2->Parameters->Append ( pParam2);
_RecordsetPtr pRecordset;
pRecordset.CreateInstance(__uuidof(Recordset));
pRecordset = pCmd2->Execute(NULL, NULL, adCmdStoredProc);
pRecordset.Release(); //Only after this line is executed will the parameters be filled in Parameters collection.
//I would like to know how many record the stored procedure return me
long lnumCount = 0;
pRecordset->GetRecordCount();
//Close the DATABASE
if ( (m_pConn2->State & adStateOpen) == adStateOpen)
{
m_pConn2->Close();
}
Best Regards
youssef
|
|
|
|
|
|
Thanks a lot
It is my solution
Best Regards
youssef
|
|
|
|
|
I declare this CArray in Header file
CArray<int, int=""> m_arrHashFileListBoxWidth;
When I compile, there are error message show
error C2143: syntax error : missing ';' before '<'
error C2501: 'CArray' : missing storage-class or type specifiers
error C2059: syntax error : '<'
error C2238: unexpected token(s) preceding ';'
Do you know how to solve this problem?
Thank you for your answer.
|
|
|
|
|
First, you really should use > and < in place of > and < when posting code, as it'll mess up otherwise (or just uncheck the "display as HTML" checkbox).
Second, you most likely need to #include the file afxtempl.h, as that is where CArray is defined.
Third, if at all possible use the STL classes (i.e. vector<>) instead; they work better, are more portable, and will in general ensure you less headaches in the future.
Shog9
------
So they took me down to the gallows
And this boy, he said to me:
"Why do you smile, when the rope's around your neck?"
I said, "I tell you boy, when i get back..."
|
|
|
|
|
Thank you.
I will use this when I post code
>
Thank you
<
|
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
