C / C++ / MFC Discussion Boards

Re: get member var from App

JabraJabra30-Jun-04 23:43

JabraJabra

30-Jun-04 23:43

thanks , it worked!

ToolBar won't un-hide correctly.

zooosta30-Jun-04 21:13

zooosta

30-Jun-04 21:13

Hey all,

I'm trying to get my MDI application to load a tool bar at startup in the hidden mode and then on a button press display the hidden menu.

My results thus far are that I can hide the tool bar on start up but when I do my button press, the tool bar remains hidden until I drag and drop another tool bar currently docked to the bottom of my main window.

Code extract provided:

------------------
Tool Bar creation
------------------
if (!m_imageProcessingToolBar.Create(
this,
WS_CHILD |
WS_MINIMIZE |
CBRS_LEFT,
IDR_TICS_COMMANDS) ||
!m_imageProcessingToolBar.LoadToolBar(IDR_IMAGE_PROCESSING))

{
TRACE0("Failed to create image processing toolbar\n");
return -1; // fail to create
}

m_imageProcessingToolBar.SetSizes(button, image);

m_imageProcessingToolBar.SetBarStyle(
m_imageProcessingToolBar.GetBarStyle() |
CBRS_TOOLTIPS |
CBRS_FLYBY |
CBRS_SIZE_DYNAMIC);

m_imageProcessingToolBar.EnableDocking(CBRS_ALIGN_ANY);
EnableDocking(CBRS_ALIGN_ANY);
DockControlBar(&m_imageProcessingToolBar);

----------------
un-hide tool bar
----------------

void CMainFrame::OnImageManipulation()
{
m_imageProcessingToolBar.ShowWindow(SW_MAXIMIZE);
}

If anyone can see the error of my way, I'd thank you so much.

Regards.

Re: ToolBar won't un-hide correctly.

bneacetp30-Jun-04 23:58

bneacetp

30-Jun-04 23:58

Try:

void CMainFrame::OnImageManipulation() 
{
    m_imageProcessingToolBar.ShowWindow(SW_SHOW);
}

void CMainFrame::OnImageManipulation() 
{
   m_imageProcessingToolBar.ShowWindow(TRUE);
}

See if one of those snippets work. Best of luck in your programming efforts.

Happy Programming and God Bless!

"Your coding practices might be buggy, but your code is always right."

Internet::WWW::CodeProject::bneacetp

Re: ToolBar won't un-hide correctly.

zooosta1-Jul-04 13:05

zooosta

1-Jul-04 13:05

Thanks for the advice, but it's still not working.

I've tried all of the SW values that can go into the ShowWindow function and none of them make the toolbar re-appear without me having to drag and drop the default system toolbar.

Re: ToolBar won't un-hide correctly.

bneacetp1-Jul-04 13:25

bneacetp

1-Jul-04 13:25

Try coding your function like this:

ShowControlBar(&m_wndToolBar, 
	!m_wndToolBar.IsVisible(), FALSE);
// Reshuffle the frame layout. - You might want to remove this line.
RecalcLayout();

Sorry. I hope this suggestion helps.

Happy Programming and God Bless!

"Your coding practices might be buggy, but your code is always right."

Internet::WWW::CodeProject::bneacetp

Re: ToolBar won't un-hide correctly.

bneacetp1-Jul-04 13:28

bneacetp

1-Jul-04 13:28

The first example using ShowContolBar toggles the toolbar visibility. If you just want to show the toolbar, try coding your function like this:

ShowControlBar(&m_wndToolBar, TRUE, FALSE);
// Reshuffle the frame layout. - You might want to remove this line.
RecalcLayout();

Sorry. I hope this suggestion helps.

Happy Programming and God Bless!

"Your coding practices might be buggy, but your code is always right."

Internet::WWW::CodeProject::bneacetp

Re: ToolBar won't un-hide correctly.

zooosta1-Jul-04 13:35

zooosta

1-Jul-04 13:35

Pure genius ;0)

Thanks a million, that worked a treat.

The RecalcLayout() line wasn't needed to make this work, what purpose does it serve?

Cheers again.

Re: ToolBar won't un-hide correctly.

bneacetp1-Jul-04 13:53

bneacetp

1-Jul-04 13:53

Glad to help.

RecalcLayout is generally used to tell MFC to reshuffle the visible controlbars when a toolbar/controlbar is added or removed from being docked (top/bottom/left/right).

MSDN Describes it this way:
Called by the framework when the standard control bars are toggled on or off or when the frame window is resized.
-Remarks-
The default implementation of this member function calls the CWnd member function RepositionBars to reposition all the control bars in the frame as well as in the main client window (usually a CView or MDICLIENT).

Override this member function to control the appearance and behavior of control bars after the layout of the frame window has changed. For example, call it when you turn control bars on or off or add another control bar.

Hope this helps. Smile | :)

Happy Programming and God Bless!

"Your coding practices might be buggy, but your code is always right."

Internet::WWW::CodeProject::bneacetp

question related to system font

johnny,Kim30-Jun-04 20:26

johnny,Kim

30-Jun-04 20:26

I'm using Visual Studio 6..
But as you know we can not change font of some part such as classview pane..
It seem to be fixed to system font.. you guys might be able to see Sans serif font..
(I'm not pretty sure about that..)

Anyway My question is 'How can I change the system font?'
I'm actually using Korean Version Windows.
What I wanna use is the sans serif system font like what you guys using.

the System font that comes with Korean Edition Windows is not good looking...
I'd like to change it..
Does any know about that?

ps. sorry about that my question is out of programming topic..

Using SpinButtonCtrl

Shuang. Wu30-Jun-04 20:13

Shuang. Wu

30-Jun-04 20:13

To change the buttons' size of a SpinButton, I need to use CSpinButtonCtrl::Create() function. Now I added a SpinButton control on my dialog, what shall I do next?

|-|3llo Wo|2ld

Re: Using SpinButtonCtrl

bneacetp1-Jul-04 0:05

bneacetp

1-Jul-04 0:05

Shuang. Wu wrote:
what shall I do next?

What is it that you are wanting to use the Spinner control for? Are you wanting it to be used with a Edit Control?

Happy Programming and God Bless!

"Your coding practices might be buggy, but your code is always right."

Internet::WWW::CodeProject::bneacetp

Re: Using SpinButtonCtrl

Shuang. Wu1-Jul-04 16:10

Shuang. Wu

1-Jul-04 16:10

Yes, with an Edit Control.

<font=sans-serif>|-|3llo Wo|2ld

Re: Using SpinButtonCtrl

bneacetp1-Jul-04 16:45

bneacetp

1-Jul-04 16:45

Place code something like this (minus the lengthly comments) in your host dialog's OnInitDialog() function like:

// Sets the spinner control's buddy.  This can be done either by using the
// below method (using GetDlgItem()) or passing the edit box's variable
// by reference like SetBuddy(&m_editBox);.  
<code>m_spinner.SetBuddy(GetDlgItem(IDC_EDIT_BOX));</code>
// This next step would greatly depend on your personal preference according
// to your needs.  I just done this to set a value in the edit box.  This 
// also should be done according to your program's needs.
<code>GetDlgItem(IDC_EDIT_BOX)->SetWindowText("0");</code>
// Next, I set the range of the spinner control.  the first parameter is the 
// minimum value and the second parameter is the maximum value.
<code>m_spinner.SetRange(0, 100);</code>
// Next, I set told the spinner to deal with the edit box in terms of 
// integers.  The boolean at the end is for determining whether the value
// should ever be signed or not.
<code>m_spinner.SetDlgItemInt(IDC_EDIT_BOX, 0, FALSE);</code>

That should do it! I hope this clarifies things for you and aids you in your programming efforts. Best of luck on your projects! Big Grin | :-D

Happy Programming and God Bless!

"Your coding practices might be buggy, but your code is always right."

Internet::WWW::CodeProject::bneacetp

Re: Using SpinButtonCtrl

Shuang. Wu1-Jul-04 19:17

Shuang. Wu

1-Jul-04 19:17

Thx. But what i want is to change spin button contro's size. I know CSpinButtonCtrl::Create can do, see:

BOOL Create( DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID );

...

Parameters

...

rect

Specifies the spin button contro's size and position. It can be either a CRect object or a RECT structure

Thus, I want to know when I can call CSpinButtonCtrl::Create.
Or, do you have any idea to change the spin button contro's size?

<font=sans-serif>|-|3llo Wo|2ld

Re: Using SpinButtonCtrl

bneacetp1-Jul-04 20:35

bneacetp

1-Jul-04 20:35

Shuang. Wu wrote:
Or, do you have any idea to change the spin button contro's size?

You can use the MoveWindow() function to resize the control anytime.

Here is MSDN Documentation on the function: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_mfc_cwnd.3a3a.movewindow.asp [^]

Happy Programming and God Bless!

"Your coding practices might be buggy, but your code is always right."

Internet::WWW::CodeProject::bneacetp

How to find location of Button?

Rajesh_K_Sharma30-Jun-04 18:56

Rajesh_K_Sharma

30-Jun-04 18:56

hello
I,m new to mfc/windows.
I would like to find x-co-ordinate,y-co-ordinate ,height and width of 'OK' button on a property sheet in MFC.

Any help appreciated

Thanks

rajesh

Re: How to find location of Button?

Neville Franks30-Jun-04 23:54

Neville Franks

30-Jun-04 23:54

Buttons are just windows so you can use GetDlgItem() to get a handle to the Window and then use GetClientRect() to get its size/pos.

Neville Franks, Author of ED for Windows www.getsoft.com and coming soon: Surfulater www.surfulater.com

Re: How to find location of Button?

Antony M Kancidrowski1-Jul-04 0:00

Antony M Kancidrowski

1-Jul-04 0:00

OK button is IDOK

CWnd* pWndOK = GetDlgItem(IDOK);
ASSERT(pWndOK != NULL);

Then use GetWindowRect()

CRect crOK;
pWndOK->GetWindowRect(&crOK);

The CRect holds the x, y, width and height

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fuity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain)

are dialog boxes the way to go?

AmericanBacon30-Jun-04 18:47

AmericanBacon

30-Jun-04 18:47

I'm new to windows programming and I'm trying to create a basic setup for my program where users go through several screens and input preferences. Seems to me that these are mainly done using MFC dialog boxes, is that true?

thanks for your input
-bacon

Re: are dialog boxes the way to go?

Steve Mayfield30-Jun-04 19:02

Steve Mayfield

30-Jun-04 19:02

You might want to look at the wizard-type form of Property Sheets...

Steve

Re: are dialog boxes the way to go?

palbano1-Jul-04 4:52

palbano

1-Jul-04 4:52

Since you are new to this you probably don’t' want to tackle this, but… The latest approach to "properties" is the list view with tree style behavior. Like the Visual Studio Property view window in the form designer. Cool | :cool:

"No matter where you go, there your are." - Buckaroo Banzai

-pete

How to insert Borland C++ program into a MFC thread?

Einly30-Jun-04 17:49

Einly

30-Jun-04 17:49

Dear all,

I am using mfc thread to acquire data from usb port and do signal processing. My signal processing program is written in Borland C++. Since my processing & classification program involves a few of submodules, I would not want to insert it in the thread. Instead I would like to call it from the thread, e.g. processing().

Below is my MFC thread:

UINT Process(LPVOID pParam2)
{
DWORD ExitCode;
int Code=1;

if(status==0)
{
myWinThread = AfxBeginThread(SendOpThread, &Code,
THREAD_PRIORITY_HIGHEST,0,CREATE_SUSPENDED);
myWinThread->m_bAutoDelete=FALSE;
myWinThread->ResumeThread();
status=1;
}

ExitCode=STILL_ACTIVE;

while(ExitCode==STILL_ACTIVE)
{
::GetExitCodeThread(myWinThread->m_hThread,&ExitCode);
}

for (int i=0; i<1024;i++)
{
j=i/4;
k=i%4;
channel[k][j]=r_Buffer[i];
}
delete myWinThread;

myWinThread = AfxBeginThread(SendOpThread, &Code,
THREAD_PRIORITY_HIGHEST,0,CREATE_SUSPENDED);
myWinThread->m_bAutoDelete=FALSE;
myWinThread->ResumeThread();

//signal processing occurs here

return(1);
}

Below is an example structure of my processing program:

#include <stdio.h>
#include <conio.h>

int i;

void Read();
void Save();

int main()
{
}

void Read()
{
}

void Save()
{
}

Can I use Callback routine? I came across some examples that uses this. What is it actually doing? Will my thread routine (UINT Thread) wait for the processing program to finish processing before execute the next line if I use call back function for the processing program? Any other better way of doin this?

Any examples that call other module from a thread?

Thanks a lot

Einly

Re: How to insert Borland C++ program into a MFC thread?

valikac1-Jul-04 11:30

valikac

1-Jul-04 11:30

You are asking multiple questions in just a couple of lines. Essentially, what do you want to know? Multithreading is compiler indepennt.

Kuphryn

Need help w/ a simple recursive function

georgiek5030-Jun-04 17:29

georgiek50

30-Jun-04 17:29

I wrote a function a while back to clean out a directory and all of its contents and tried re-writing the same one tonight but can't seem to get it right. Any chance someone can point out my mistake?

short ClearEntireDirectory(char *szDirectory)
{
	// Function to work on a directory until everything is wiped out

	HANDLE hFile;
	WIN32_FIND_DATA wfd;

	if ( SetCurrentDirectory(szDirectory) == 0 )
		return 1;

	hFile = FindFirstFile("*.*", &wfd);

	while ( FindNextFile(hFile, &wfd) != 0 )
	{
		if ( wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY &&
			 strcmp(wfd.cFileName, "..") != 0 &&
			 strcmp(wfd.cFileName, ".")  != 0
		   )
		{
			if ( ClearEntireDirectory(wfd.cFileName) == 1 )
				return 1;
		}

		DeleteFile(wfd.cFileName);
	}

	if ( SetCurrentDirectory("..") == 0 )
		return 1;

	if ( RemoveDirectory(szDirectory) == 0 )
		return 1;

	FindClose(hFile);

	return 0;
}

I keep getting error 32 (ERROR_SHARING_VIOLATION) when I try to ultimatelly remove the directory.

Re: Need help w/ a simple recursive function

georgiek5030-Jun-04 17:39

georgiek50

30-Jun-04 17:39

I'm such an idiot!!! It would help if FindClose cam before RemoveDirectory!!!!!

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.