C / C++ / MFC Discussion Boards

Re: how to allow horizontal scroll for picture or custom control?

Hamid_RT10-Dec-06 6:43

Hamid_RT

10-Dec-06 6:43

Do you want to scrolls for your image ?

WhiteSky

Re: how to allow horizontal scroll for picture or custom control?

cyn810-Dec-06 13:34

cyn8

10-Dec-06 13:34

I want to scroll for the graph(longer that what it can display in one window) that i draw.
May i know how to do this in picture or custom control so that the graph that i drew will be able to scroll properly. What other functions i need to look for? I'm using VC6, dialog app with MFC.
Thanks Smile | :)

Any help to merge multiple PDFs in a single PDF: Using any thing like VC++ or VB

helpcode10-Dec-06 1:16

helpcode

10-Dec-06 1:16

I am creating several PDF reports in my application. Now according to one requirement i want to merge all PDFs in a single PDF. Eg. if there are x.pdf,y.pdf,z.pdf reports i will have to merge them in a file package.pdf so that all the three PDFs will be seen in a single PDF. Any idea?
Any free API available?
Help me please. Thanks in advance.

Jiteen

How can i play a wma file?

Sina Parastgary9-Dec-06 19:18

Sina Parastgary

9-Dec-06 19:18

i want to read and play it.i want a sample to decode or play wma and wmv files.
sorry because i dont know where to ask it.
thank you.

Re: How can i play a wma file?

Mark Salsbery10-Dec-06 5:48

Mark Salsbery

10-Dec-06 5:48

wma and wmv files are Advanced Systems Format (ASF) files.

ASF files are covered in the Windows Media Format 11 SDK[^]
There's sample apps in the SDK as well.

If you choose to use DirectShow to play these files there's the DirectShow[^]
SDK (which is now part of the Platform SDK).

If you want to use Windows Media Player there's the Windows Media Player 11 SDK[^]

any idea to use CToolBar in this way?

includeh109-Dec-06 6:38

includeh10

9-Dec-06 6:38

I hope a message is sent to parent window when user right clicks a button on CToolBar - so I can display a pop up menu associated with the button.

can a button on CToolBar send message with mouse right-clicking?
if not, any idea to modify CToolBar?

thx

-- modified at 12:48 Saturday 9th December, 2006

Re: any idea to use CToolBar in this way?

Mark Salsbery9-Dec-06 7:08

Mark Salsbery

9-Dec-06 7:08

A toolbar sends a NM_RCLICK notification through a WM_NOTIFY message when the user right-clicks
on the toolbar. To get the message in your parent window, add a OnNotify() override to the
parent's class, something like:

BOOL CMyWnd::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
	if (wParam == ID_MYTOOLBAR)
	{
		NMMOUSE *pNMMouse = (NMMOUSE *)lParam; 
 
		if (pNMMouse->hdr.code == NM_RCLICK)
		{
			//process right click
 
			return TRUE;
		}
	}
 
	return CWnd::OnNotify(wParam, lParam, pResult);
}

Re: any idea to use CToolBar in this way?

Mark Salsbery9-Dec-06 8:09

Mark Salsbery

9-Dec-06 8:09

Now that I've had some caffeine, I thought maybe an easier way would be to let MFC do some of the
work Laugh | :laugh:

ON_NOTIFY(NM_RCLICK, ID_MYTOOLBAR, OnToolbarRClick)
... 
void CMyWnd::OnToolbarRClick(NMHDR *pNMHdr, LRESULT *pResult)
{
	NMMOUSE *pNMMouse = (NMMOUSE *)pNMHdr; 
  
	//process right click
  
	*pResult = (LRESULT)TRUE;
}

help reading integer string "Zero-based index of the button string"

swarup9-Dec-06 5:56

swarup

9-Dec-06 5:56

the structure is of type
typedef struct _TBBUTTON {
int iBitmap;
int idCommand;
BYTE fsState;
BYTE fsStyle;
DWORD dwData;
int iString;
} TBBUTTON, NEAR* PTBBUTTON, FAR* LPTBBUTTON;
where int iString is type
Zero-based index of the button string.

how to read the value of iString, any idea or any help,

thanks
swarup

Re: help reading integer string "Zero-based index of the button string"

includeh109-Dec-06 6:43

includeh10

9-Dec-06 6:43

does this one work?
CToolBarCtrl::GetButton(int nIndex,LPTBBUTTON lpButton).

Re: help reading integer string "Zero-based index of the button string"

swarup11-Dec-06 20:03

swarup

11-Dec-06 20:03

nah it wont help

my prob is
TBBUTTON tb;
i want to read the value of tb's iString value
can u help me to know how to read the value of TBBUTTON's int iString

How to change a specific color of an image ?

SearchDream9-Dec-06 4:54

SearchDream

9-Dec-06 4:54

How to change a specific color of an image ? either BMP or JPG

Re: How to change a specific color of an image ?

Hamid_RT9-Dec-06 5:40

Hamid_RT

9-Dec-06 5:40

Is CImage::SetPixelRGB helpfuls?

WhiteSky

How to use a unicode charset dll in any vc++

sAbhishek9-Dec-06 2:42

sAbhishek

9-Dec-06 2:42

Hi friends,

I am new bie need to know that How to use a unicode charset dll in any vc++ application.

Thanks in advance

Re: How to use a unicode charset dll in any vc++

karle10-Dec-06 7:55

karle

10-Dec-06 7:55

change CharacterSet property in your C++ projekt settings (VS2005) to "use unicode charset".
If you are not using VS 2005. Add "_UNICODE" and "UNICODE" define to your preprocessor defines.

frame/border for captionless rounded rectangular dialog

Super Hornet9-Dec-06 2:32

Super Hornet

9-Dec-06 2:32

how can i draw border for a rounded rectangular dialog that doen'st have title bar. The border in the dialog properties is set to "None" as i m making the dialog to rounded rectangle.

Even the border has to be rounded rectangle.

Re: frame/border for captionless rounded rectangular dialog

Waldermort9-Dec-06 2:47

Waldermort

9-Dec-06 2:47

please stop asking the same question again and again. Each time you have asked you were given various methods to do what you want by different people. Go read your last posts, you can find them and other similar questions/answers by using the search feature of the forums.

Re: frame/border for captionless rounded rectangular dialog

Super Hornet9-Dec-06 3:14

Super Hornet

9-Dec-06 3:14

i m sorry sir actually i was unable to use FrameRgn API so again i had posted one more.

Getting a notification message

Taruni9-Dec-06 0:37

Taruni

9-Dec-06 0:37

Hi
I have a ListCtrl for which I have added LVS_EX_CHECKBOXES. My requirement is whenever I check/uncheck the checkbox of the ListControl, a notification is needed whether the item is checked or not or any related info based on which I will carry some other task . For this which function will be useful.Hope I am clear.

Thanks in advance.

Taruni

Re: Getting a notification message

Mark Salsbery9-Dec-06 7:29

Mark Salsbery

9-Dec-06 7:29

Taruni wrote:
a notification is needed whether the item is checked or not

A LVN_ITEMCHANGED notification is sent to the control's parent.

This article may help: Adding Checkboxes to a list control[^]
especially the section "How to get notification when an item is checked / unchecked".

HANDLE of a window

RockyJames9-Dec-06 0:28

RockyJames

9-Dec-06 0:28

Hi,
I have placed a ComboBox in a formview.In OnInitialUpdate i am setting the ComboBox Current selection to Zero.When i run the application i am getting an ASSERTION.When i debug the application,i find the problem at SetCurSel funtion.I am getting the Handle of ComboBox as NULL.How to over come this problem.

Thanks in before
James

Re: HANDLE of a window

includeh109-Dec-06 3:09

includeh10

9-Dec-06 3:09

maybe u change resource ID of the control?
use class wizard to delete member of the CListBox then add it again.

I just guess so.

Re: HANDLE of a window

Hamid_RT9-Dec-06 5:47

Hamid_RT

9-Dec-06 5:47

If insert another combobox and declare a variable for it what happens?

WhiteSky

Re: HANDLE of a window

James R. Twine9-Dec-06 11:00

James R. Twine

9-Dec-06 11:00

Make sure you are trying to use the combo box after the base class version of OnInitialUpdate(...) has been called, or your controls may not have been created or attached-to yet.

Peace!

-=- James

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C++ vs. C#: Developing a highly scalable IOCP server

zulat9-Dec-06 0:28

zulat

9-Dec-06 0:28

Hello,

Recently I have been involved in a debate as to what environment (C# or C++) is better for developing a highly scalable Completion Ports based server capable of handling thousands of simultaneous connections (namely, its network layer). The issue is still open. I would really like to hear opinion of the community with all the pros and cons (within boundaries of the task, i.e. - network layer) of both environments. All opinions are very much appreciated.

Thanks in advance. Dennis.

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