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Re: Controlling Video Camera

Virex_A17-Dec-08 19:31

Virex_A

17-Dec-08 19:31

thanks for the link.. im still on the process of figuring out how to program it.. though i have a very large idea, thanks to you.

Getting Error message when try to create a event handler for a button control in MFC dialog

manoharbalu9-Dec-08 19:16

manoharbalu

9-Dec-08 19:16

Hi,

In my application, which have number of dialogs. In a dialog already created, I added a button control.
When I try to add event handler function for this button thru class wizard I got an error message:
"Error in updating files(s)(C:Documen.......\ModelOpen.cpp,C:Doc....\ModelOpen.h) for class "CModelOpen"."

I also checked that files,its not in Read Only. Then where is the problem?
Also I tried deleting and recreating the .NCB and .CLW files. But in vain.

Pls help me and provide me a solution.

Re: Getting Error message when try to create a event handler for a button control in MFC dialog

_AnsHUMAN_ 9-Dec-08 19:20

_AnsHUMAN_

9-Dec-08 19:20

did you try to add the handlers manually. There is no magic done by the editor apart from adding the code at the right place. You just need to figure out where and why

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: Getting Error message when try to create a event handler for a button control in MFC dialog

manoharbalu9-Dec-08 19:24

manoharbalu

9-Dec-08 19:24

Thanks for your rply.

I didnt tried adding the event handler manually; I think it might work. But I want to know why it fails through class wizard. So I want to know what's the correction I have to do to make it work

Re: Getting Error message when try to create a event handler for a button control in MFC dialog

_AnsHUMAN_ 9-Dec-08 19:28

_AnsHUMAN_

9-Dec-08 19:28

manohar_balu wrote:
I didnt tried adding the event handler manually; I think it might work

Hmm...It will work

manohar_balu wrote:
So I want to know what's the correction I have to do to make it work

Just a guess though, did you confirm that the file ModelOpen.* are present and act as a class for your dialog.
Was it possible for you to add a member variable/event handler to any other control on the dialog prior to this

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: Getting Error message when try to create a event handler for a button control in MFC dialog

manoharbalu9-Dec-08 21:45

manoharbalu

9-Dec-08 21:45

Yes both the source and header files are present and are included in this project.

I was n't able to add message handler for other new controls also.
When I tried to add member variable for the same button control, the same error message came but the member variable got created. And also all the message handlers got added up so all the message handlers got repeated.

Re: Getting Error message when try to create a event handler for a button control in MFC dialog

SandipG 9-Dec-08 20:10

SandipG

9-Dec-08 20:10

May be you have edited the wizard generated code (grayed code) some where in those files. e.g. code between AFX_DATA_MAP or AFX_MSG_MAP tags.
You should not edit the code between the tags used by wizard.
I hope it helps.

Regards,
Sandip.

POSITION data variable

amit.code9-Dec-08 18:57

amit.code

9-Dec-08 18:57

Hi .. in one of my function(exported) i have to pass a variable of POSITION type. I have looked for its definition, which I found in afx.h file
struct __POSITION {};
typedef __POSITION* POSITION;
Do any one have idea what value it will accept.
Thanks

amit

Re: POSITION data variable

VC++Maniac9-Dec-08 19:04

VC++Maniac

9-Dec-08 19:04

It is just a pointer to any type. You cant initialize it with your own value, except NULL. There are classes with member functions that return a POSITION type value. Like CObList.

Re: POSITION data variable

amit.code9-Dec-08 20:56

amit.code

9-Dec-08 20:56

Thanks for reply.. I tried to initialze it with my own value(int *), but it gives run time error.

amit

Re: POSITION data variable

VC++Maniac9-Dec-08 21:38

VC++Maniac

9-Dec-08 21:38

You cannot initialize it with your own value. thats what I said in my previous reply.

how to display a document when clicked on sub menu for a dialog based application?

puppya9-Dec-08 18:56

puppya

9-Dec-08 18:56

i want to open a document when clicked on sub menu item.this menu is attached to a dialog box. how can do this?
thanks in advace.

Re: how to display a document when clicked on sub menu for a dialog based application?

VC++Maniac9-Dec-08 19:07

VC++Maniac

9-Dec-08 19:07

You can use shellexecute API for opening any file, folder or run executables.

Re: how to display a document when clicked on sub menu for a dialog based application?

puppya9-Dec-08 19:11

puppya

9-Dec-08 19:11

thanks.
can u plz give me any sample demo or code for this?

Re: how to display a document when clicked on sub menu for a dialog based application?

VC++Maniac9-Dec-08 19:19

VC++Maniac

9-Dec-08 19:19

ShellExecute(NULL, "open", FullPath\filename, NULL, NULL, SW_SHOWNORMAL);

You should be having MSDN local help. You can check more details about it in MSDN.

Re: how to display a document when clicked on sub menu for a dialog based application?

puppya9-Dec-08 19:26

puppya

9-Dec-08 19:26

thanks.
it is working and it is opening the document.

Re: how to display a document when clicked on sub menu for a dialog based application?

VC++Maniac9-Dec-08 19:34

VC++Maniac

9-Dec-08 19:34

You Welcome Smile | :)

Re: how to display a document when clicked on sub menu for a dialog based application?

puppya9-Dec-08 20:40

puppya

9-Dec-08 20:40

hey can u solve my 1 more issue?
i want to show popup menu on edit box after right clicking on edit box. how can i do this?
thanks in advance

Re: how to display a document when clicked on sub menu for a dialog based application?

VC++Maniac9-Dec-08 21:35

VC++Maniac

9-Dec-08 21:35

Yes.

here is a logic commonly used to load context menus:

You have to create a menu with id IDR_POPUP,
put this in onNMRclick handler in your Dialog class.

CPoint ptScreen;
	
if (GetCursorPos(&ptScreen))
{
      CMenu menu;
      VERIFY(menu.LoadMenu(IDR_POPUP));
      CMenu *popup = menu.GetSubMenu(0);
      ASSERT(popup);
      VERIFY(popup->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON,
						ptScreen.x,     ptScreen.y,    this, NULL));
     
}

Re: how to display a document when clicked on sub menu for a dialog based application?

puppya9-Dec-08 22:57

puppya

9-Dec-08 22:57

thanks a lot,
it is working.
i have 1 more issue Smile | :)

can u plz tell me how to display help information on 1st pane of status bar about the menu items when there are selected or positioned, that is windows standard practice. how to do this.
thanks in advance

Re: how to display a document when clicked on sub menu for a dialog based application?

VC++Maniac9-Dec-08 23:15

VC++Maniac

9-Dec-08 23:15

I think that's simple Smile | :)

. I dont have a code snippet for this. Dont need code.
You have to just provide a prompt for each menu command(find in properties window - "Prompt" property).

Check if it works..

Re: how to display a document when clicked on sub menu for a dialog based application?

puppya10-Dec-08 0:17

puppya

10-Dec-08 0:17

since 2 days m trying this only but this is not working at all

Re: how to display a document when clicked on sub menu for a dialog based application?

VC++Maniac10-Dec-08 0:26

VC++Maniac

10-Dec-08 0:26

Did you add prompts for each of your Menu items?

Re: how to display a document when clicked on sub menu for a dialog based application?

puppya10-Dec-08 0:27