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Hi !! I'm programming in MFC. I want a CStatic label control to have font color at red. I don't know how to do it, because I'm using this code:
CFont* my_font = new CFont;
my_font->CreateFont(here all the parameters that I need...);
but I can't see anything for the color... What can I do ?? I think that I've to do something with CDC or something... but please, if you could show an example...
Thanks in advance !! 
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Yes you have to use CPen pen(..) and then pDC->SelectObject(pen);
don't forget to free resorces DeleteObject(pen)
because after some time our application my behave in funy way 
Pain is a weakness living the body
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CPen is for line drawing. You need to use CDC::SetTextColor(COLORREF) to choose what colour the text gets drawn in.
Roger Allen - Sonork 100.10016
Strong Sad: I am sad I am flying
Who is your favorite Strong?
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Rafael Fernández López wrote:
but I can't see anything for the color...
Thats because the control's font has nothing to do with the colour being displayed.
One method that I use is to implement the WM_CTLCOLOR message handler, and set the draw colour (SetTextColor()) for all or individual static control.
Or you can use a derived label class like this: CLabel[^].
I Dream of Absolute Zero
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Does anyone have a tutorial about adding C++ (Visual Studio) code as a macro in Excel. Need to know this for some job interviews. Thanks
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That I know of, the macros used in Excel (and all of Office) are VBA (a derivative of VB), not C++.
"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)
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Do you mean how to create a COM Add-in? Because Excell macros are VBA code, not C++, but if you are referring to Add-ins, your COM class must implement the IDTExtensibility2 interface in order to work with any MS Office program.
Do a search on the MSDN on IDTExtensibility2, also you can take a look to this article, Comaddin.exe Office 2000 COM Add-In Written in Visual C++, it is a Win32 project that you can use as starting point, but I suggest you to use ATL to help yourself with this task.
Fabian
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Yes, this is it!! Thanks for your help.
Regards
Chris
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Hi, I must get a string from a function included into a DLL, imported in a ASP.NET page.
The code:
----
Into a .aspx.cs page:
//def. function included into a DLL
[DllImport("WebUtility.dll", EntryPoint = "getDescr")]
public static extern string getDescr(int id);
//call the function:
string descr=getDescr(123);
---
into the c++ program, the function is definied as:
char* getDescr(int id) {
char* ret=new char[LUNGHEZZA_STRINGA_MEM];
strcpy(ret,oggetto[id].descr);
return (ret);
}
If I throw the application, the server give me the error: System.NullReferenceException: Object reference not set to an instance of an object.
But this error is generated not every time, but random!! some time I can view the string correctly! Why?
Thanks for the help!!!
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You can try
[return: MarshalAs(UnmanagedType.LPStr)] However, that's going to be tricky: what frees the string?
If you control both the C# code and the DLL, I'd change your API so it takes a string pointer and a size:
BOOL GetDescr( int id, char* pBuffer, int bufLen )
{
if ( bufLen < LUNGHEZZA_STRINGA_MEM )
{
return FALSE;
}
else
{
strcpy( pBuffer, oggetto[id].descr );
return TRUE;
}
}then call from C# like so:
[DllImport( "WebUtility.dll", EntryPoint=GetDescr )]
public static extern bool UnsafeGetDescr( int id, StringBuilder buffer, int bufLen );
public static extern string GetDescr( int id )
{
StringBuilder sb = new StringBuilder( LUNGHEZZA_STRINGA_MEM );
if ( !UnsafeGetDescr( id, sb, sb.Capacity ) )
{
return null;
}
else
{
return sb.ToString();
}
}
Stability. What an interesting concept. -- Chris Maunder
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Ok, thank you vary much, using your suggestion I solved the problem!!
Matteo
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Hi Friends,
Our product uses shell integration to extend the functionality of the explorer. when doing some internal operation i may get crash. Explorer then dies. Instead of try/catch in each functionality I need a generic solution so that i can do some cleanup at the time of crash.
(i)I tried with Hooking windows messages but i am not getting the quit/destroy message when the explorer crashes abrubtly(Terminate process)
(ii) I tried with some solutions in the internet for monitoring the process but it is complex with additional server / dll that is injected with all process. Also this solution causes performance difference.
Can any one of you please help me to find a simple solution so that i can handle this situation.
jothi
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Have you tried some low level debuggers like softice or WinDBG?
Sonork 100.41263:Anthony_Yio
Life is about experiencing ...
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Thanks for your reply.
Sorry, I dont know the usage of these debuggers.
Can you please explain more details about that.
jothi
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the vertical scroll bar doesnt get enabled if i add string which doesnt fit a list box. Any ideas what seems to be the problem here. Horizontal scroll bar seems to work fine.
m_lstboxMessages.AddString(sServerMsg);<br />
UpdateData(FALSE);
where m_lstboxMessages is control variable of CListBox
Any suggestion regarding this??
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Make sure that the Vertical ScrollBar property of your control is enabled. You should be able to see this in the resource view.
I Dream of Absolute Zero
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yea its enabled infact i should have mentioned the styles that i have turned on...
Border=checked
Horizontal Scroll=checked
Vertical scroll=checked
Disable No Scroll=checked
No integral height=checked
any thing missing over here??
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FASTian wrote:
the vertical scroll bar doesnt get enabled if i add string which doesnt fit a list box.
This indicates that the horizontal scroll bar is not working. The vertical scroll bar is not concerned with a string's length. It comes into play when there are more items in the control than can be displayed (e.g., the control can only show 10 strings but 15 have been added).
If I am correct, it sounds like you simply need to call SetHorizontalExtent() in the dialog's OnInitDialog() method..
FASTian wrote:
m_lstboxMessages.AddString(sServerMsg);
UpdateData(FALSE);
There is no need to (ever) call UpdataData().
"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)
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nopes thats not the case the horizontal bar shows correctly...
when i add a long string. It only shows a part of the string according to the vertical height i.e it just shows only the last 10 characters or something like that...
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I think I understand, but a picture is worth 1,000 words. Can you provide one?
"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)
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any ideas how i can paste a pic over here???
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You can't (that I know of). You'd need to upload one to your own Web site and provide a link for it here.
"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)
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Hi
I am trying to print a CString to a file using C++ ofstream. What I do is something like this:
CString cstr = "This is a test";
std::ofstream fTest("TestCString.txt");
fTest << cstr;
fTest.close();
The problem is, the result in TestCString.txt is not the text "This is a test", instead it is something like 002F4BC4, which I couldn't make any sense out of it.
Could someone tell me what the problem is, and since the string in my project MUST use CString, is there a way to print it using ofstream without changing the CString class?
Thanks!
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try
CString cstr = "This is a test";
std::ofstream fTest("TestCString.txt");
fTest << (LPCTSTR)cstr;
fTest.close();
Papa
while (TRUE)
Papa.WillLove ( Bebe ) ;
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