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Hi,
You are correct that if combobox doesn't contain any item i make it disable and enable it only if it contain item. But is their any other way to simply stop combobox from showing empty dropdown list if it not contain item.
Thanks:-
Mike
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Hi,
Try this CComboBox::ShowDropDown(false);
Bye,
Cool Ju 
Dream Ur Destiny
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Hi,
I try like this one but it didn't work. When I read MSDN help about it, it says that This member function has no effect on a combo box created with the CBS_SIMPLE style. And I thing that the combobox created using toolbox has CBS_SIMPLE style. So what to do?
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hey, is it that difficult ? 
you have one line of code, what do you want else 
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Hi,
It didn't work. As This ShowDropDown function has no effect on a combo box created with the CBS_SIMPLE style.And combobox created by dragging from toolbox hasof CBS_SIMPLE style. Any solution for this?
Thanks
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MikeRT wrote: But is their any other way...
Why would you want/need one? Mila025 has provided you with a very clean, simple solution. There's no need to bother with any of the dropdown-related stuff.
"Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain
"There is no death, only a change of worlds." - Native American Proverb
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Try CB_SHOWDROPDOWN.
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[My Status]
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Hi,
I do like this.I make the combobox disable in OnDropDown() by checking wheather it empty or not. But problem is that once you click on combo box it checks wheather it is empty or not. If it is empty, combobox disable but empty list genrated below it remains their. Any solution for it?
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There should be a simple way out , but I couldnt think about it now.
The below may sound silly , but it still works. You can create an EDIT box and make the size same as the Combo. and you can play this trick 
<code>
CComboBox* cmb = (CComboBox*)this->GetDlgItem(IDC_COMBO1);
CEdit* ce =(CEdit*)this->GetDlgItem(IDC_EDIT1);
void CTESTDlg::OnSetfocusEdit1()
{
if(cmb->GetCount()>0)
{
cmb->ShowWindow(SW_NORMAL);
ce->ShowWindow(SW_HIDE);
}
}
void CTESTDlg::OnSetfocusCombo1()
{
if((cmb->GetCount()==0))
{
cmb->ShowWindow(SW_HIDE);
ce->ShowWindow(SW_NORMAL);
}
}
</code>
You like it ? 
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[My Current Status]
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Hi,
I will try it and let you know. Thanks for efforts you take.
Thanks:-
Mike
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Hi,
I don't like this. Can you stop combobox from showing empty list when it doesn't have any item.
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I forgot to tell you one thing, you need to keep the Combo right on top of the EditBox., but still on the click of the "drop" button which is there on the Combo, the dowpdown is getting displayed anyway , I'll give it a try when I have time for R&D 
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[My Current Status]
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Is it possible to create a static library in .NET 2003, that doesn't use managed code, and link it into a Visual C++ v6 project? If so, how? I've made a simple attempt, but I get linker errors in VC6 like...
unresolved external symbol __RTC_Shutdown
unresolved external symbol __RTC_InitBase
Building Release works but Debug does not.
Thanks.
Brad
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I want a list ctrl with some columns are fixed ie, these column must not posses the HScroll property but they must have VScroll property. and a full row selection.
Consider the following is the column header
col1 col2 column1 column2 ......
The first two columns are fixed (both header and values). (A HScroll is placed commonly for both the columns col1,col2 and column1,column2... but it works only for column1,column2..... . The VScroll would work as usual.
Also i want to add more than two picture in a cell of list ctrl based on some condition. and also I have to use vertical text as column header for some columns and for some columns i need multiple headers
Can U please help me for finding a solution
If question is not clear then mail me to
sancres_memail@myway.com
Thanking You
Sandeep A.C
Sanc
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Hello Friends,
For a application i need to get the whois information of the domain.
Whois information is the total information of a domain. Does any one know how to get it programatically?
Thanks in Advance.
The secret of life is not enjoyment
but education through experience.
- Swami Vivekananda.
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Check out this wll help you.
http://www.codeproject.com/internet/whois.asp
Cheers
"Peace of mind through Technology"
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Hi All,
I have lots of questions regarding VC++. Hope I get answers! Ok, Here goes...
1) Difference between CreateInstance, CoCreateInstance and CrateObject.<br />
<br />
2) When is the type library (.tlb) created? Is it created for COM components? I created a Simple COM dll but no type library was created. How do I create it? Is a type library really needed?<br />
<br />
3) Can functions in a COM dll be accessed using its .lib file or by using loadlibrary()? If it can be, then does the COM dll have to be registed in the registry for an application to use its functions?<br />
<br />
4) Difference between Static library and Dynamic Library?<br />
<br />
5) Difference between Win32 Static Library, Win32 Dynamic Link Library, MFC dll and ATL/COM dll in VC++? <br />
<br />
6) How many types of dlls are there? Like, COM dll is a type.<br />
<br />
7) What does "Allow Merging of proxy stub code" do in the ATL COM Wizard? does it change the COM component if it is selected or not selected.<br />
<br />
8) What is MTS in "Support MTS" in the same page as (7)?<br />
<br />
9) Just like we can use MFC as a Statically linked library or a shared library, is there any way that I can use a custom dll in the same ways?
I know that some of my questions are stupid and immature, but I have started to use VC++ only 2 months back and there are a hell lot of questions still lingering in my mind ....
Hope I get answers...
Thanks you all, for helping me out.
---
With best regards,
A Manchester United Fan
The Genius of a true fool is that he can mess up a foolproof plan!
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I have tried to answer some of your questions; I have forgotten the answers to the other ones and would have to look them up. All the information is buried in the MSDN and is also available on the Web.
4) A Static Library (.lib) is linked to your program and a Dynamically Linked Library is not. A Dynamic Library is loaded into memory when a program requires access to it; it is unloaded from memory when there are no applications open that require its services.
5) The first two items are the same as question 4. The next two items are just different Dynamically Linked Libraries that provide different services.
8) From MSDN: “MTS is a new kind of middleware, software that makes it easier to build and scale distributed applications running on servers.”
9) Yes.
INTP
Every thing is relative...
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Sure are lots of questions
well, lets see if we can get answers to them all:
1. CoCreateInstance is a method of CComPtrBase. it is used to create an object of the class associated with a specified Class ID or Program ID.
CreateInstance is a method of the Smart pointer encapsulation _com_ptr_t. it does the same this as CoCreateInstance, but in more convenient way. behind the scenes it calls CoCreateInstance.
CreateObject is a method of CRuntimeClass. you use it to dynamically create the specified class during run time. (a one that supports dynamic creation)
2. *.tlb file is created when you compile the *.idl file of your project. the reason you didn't see it because when you create a COM (ATL) project, you need to create a COM object (i.e simple object) and then you will see the *.idl file. when you compile it, the *.tlb will be automatically generated.
3. Theoretically since COM dll is a dll, it can be approached using LoadLibrary, but to interact with the interfaces will be a tough job. even more, if this is your desire, then why to use the COM dll in the first place. you can simply write a dll and use LoadLibrary to interact with it.
4. If you create a static library, then it will be added to your project (exe) and will be a part of it, you won't be able to see it, you will only have 1 exe that contains it. Creating a dynamic library means the *.exe loads the library during its execution, and it will be apart of the exe (will reside in a *.dll file). think whether you want to work with 1 file (exe) or with several files (1 exe and several dlls)
5. Win32 Static Library and Win32 Dynamic Link Library , read answer #4 it is the same.
MFC dll simply uses the MFC libraries in the project (it can be a staticly used, which means the libraries will be apart of the main exe, or it can be dynamically used which means the exe will load the MFC dll libraries during execution).
ATL/COM dll used the ATL templated in the project. (from MSDN : ATL is shipped as source code which you include in your application. ATL also makes a DLL available (atl71.dll), which contains code that can be shared across components. However, this DLL is not necessary.)
6. Just open Visual studio and choose to create a new project, there you will see all the dll types (such as MFC dll etc)
7. I suggest you refer to the MSDN on the proxy matter, it explains it very well.
8. It is a support for Microsoft Transaction Server. agian, refer to the MSDN on the matter.
9. of course, you just have to choose in the project wizard either you want a Win32 static library or win32 dynamic library.
ce tu
hope it helped you
Yaron
Ask not what your application can do for you,
Ask what you can do for your application
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So I want to place some entries in HKEY_CURRENT_USER.SOFTWARE.MICROSOFT.WINDOWS.CURRENTVERSION.MYAPP\
It's configuring a system property so I feel it belongs here.... my fear is those registry cleaners.... how do you make sure they don't wipe out your application data?
Thanks
.
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I'd say it probably does not belong there.
Christian Graus - Microsoft MVP - C++
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Agreed. If application data is put there it deserves to be cleaned.
Steve
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Well, ok, easy to move...
But the question still remains, how do you make sure those registry cleaners don't wipe out your important application data?
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