How to Move an MFC Button. [modified]

[bolivar123]

Why not leave the buttons where they are and simply call ShowWindow(SW_HIDE) on each of the buttons? Such as: GetDlgItem(IDC_BUTTON1)->ShowWindow(SW_HIDE); GetDlgItem(IDC_BUTTON2)->ShowWindow(SW_HIDE); GetDlgItem(IDC_BUTTON3)->ShowWindow(SW_HIDE); Then somewhere else in your program if you want to show the buttons again: GetDlgItem(IDC_BUTTON1)->ShowWindow(SW_SHOW); GetDlgItem(IDC_BUTTON2)->ShowWindow(SW_SHOW); GetDlgItem(IDC_BUTTON3)->ShowWindow(SW_SHOW);

[merano]

The link does not work. Do you have a Solution ?

[lgmanuel]

there is no need for hiding the controls., i got an idea that if the LEFT button is clicked, it scrolls all the way to the left until the three buttons are gone, then it shows up on the right side of the app window, likewise with the right button. then it should stop to where the three buttons are if the center button is prssed. Like the tag in HTML, it just scrolls to the direction, then shows up to the other side.. i think but am not sure if i need to get the coordinates? need help guys. thanks..

[lgmanuel]

http://h1.ripway.com/lgmanuel/VisualCPP/MoveTheButton.rar[^] here is the link, sorry if the previous link did not work.. i renamed the directory..

[merano]

Yes that will do the job. Found an easy TODO for the Timer-Part here ("Using Timers in MFC Applications") In our Sample it would look like this: First update your class in MoveTheButtonDlg.h (Some work is already done by VisualStudio when clicking the Button)

enum {DIR_STOP, DIR_LEFT, DIR_RIGHT};

// CMoveTheButtonDlg dialog
class CMoveTheButtonDlg : public CDialog
{

...

DECLARE\_MESSAGE\_MAP()

public:
afx_msg void OnBnClickedMoveright();
afx_msg void OnBnClickedStop();
afx_msg void OnBnClickedMoveleft();
afx_msg void OnTimer(UINT TimerVal); // TI: Add timer handler to messagemap

private:
BOOL StartTimer (UINT TimerDuration);
BOOL StopTimer(void);

UINT\_PTR m\_nTimer;
UINT  m\_Direction;
DWORD m\_winpos;

};

After that you have to declare Message-Map:

BEGIN_MESSAGE_MAP(CMoveTheButtonDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_MoveRight, &CMoveTheButtonDlg::OnBnClickedMoveright)
ON_BN_CLICKED(IDC_Stop, &CMoveTheButtonDlg::OnBnClickedStop)
ON_BN_CLICKED(IDC_MoveLeft, &CMoveTheButtonDlg::OnBnClickedMoveleft)
ON_WM_TIMER ( ) // TI: timer implementation
END_MESSAGE_MAP()

At last the new members have do be defined:

void CMoveTheButtonDlg::OnBnClickedStop()
{
m_Direction = DIR_STOP;
StopTimer();
}

void CMoveTheButtonDlg::OnBnClickedMoveright()
{
m_Direction = DIR_RIGHT;
StartTimer(1000);
}

void CMoveTheButtonDlg::OnBnClickedMoveleft()
{
m_Direction = DIR_LEFT;
StartTimer(1000);
}

BOOL CMoveTheButtonDlg::StartTimer (UINT TimerDuration)
{
m_nTimer = SetTimer (IDT_TIMER_0, TimerDuration, NULL);

if ( m_nTimer == 0) {
MessageBox (_T("Unable to obtain timer"), _T("IDT_TIMER_0"), MB_OK|MB_SYSTEMMODAL);
return FALSE;
}

return TRUE;
}// end StartTimer

BOOL CMoveTheButtonDlg::StopTimer(void)
{
if(m_nTimer) {
// Stop the timer
if (!KillTimer (m_nTimer)) {
return FALSE;
m_nTimer = 0;
}
}

return TRUE;

} // end StopTimer

void CMoveTheButtonDlg::OnTimer (UINT TimerVal)
{
if(TimerVal != m_nTimer) // TI: check what timer
return;

switch(m\_Direction) {
case DIR\_LEFT:
	// TI: move to left here
	m\_winpos-=5;
	break;
	
case DIR\_RIGHT:
	// TI: move to right here
	m\_winpos+=5;
	break;
}

}

I

[lgmanuel]

this is a step forward.. thanks.. i just thought maybe i needed timers, then poof.. a sample code.. thanks.. just have to modify the code to fit my needs.. but am still having trouble moving the buttons., a trying to work how to move i now?

[lgmanuel]

hi, i have another question? am trying to connect two computers on the network whit the same App that i created, how do i connect these 2? it should prompt the user that the connection is successful? help guys. thanks

[lgmanuel]

how do i disable the left and right button when the window load.. and enable it back when press the center button?

[merano]

You already have the very good hint from Niklas Lindquist 14Jul'10. SetWindowPos()[^] or MoveWindow()[^] to move the buttons Every Button is based on a Window and SetWindowPos() can do everything with the button (even hide it) if you are able to get the CWnd-handle. See Example: void CWinApp::HideApplication() On the MSDN Online-Page (linked also by Niklas Lindquist) you really should start to read MFC doku (See advice of Cedric Moonen). You can get hints from the Forum, but nobody will do the complete work for you. What is the complete Funktion of your Application ? -If you want networkfunktions you will probably get Timing an Sync Problems. You can send every Button a message to get the same result as if you pressed it, but over Network you will not see the monitor. You have to find a way to send the results back to every client and display it.

[lgmanuel]

yup., one of my nerd friends is helping on the networking side of the app.. needs to read about Socket Buffer and Listening.. anyways., got a lot of hints from you guys on how to start my C++ adventure, hope it works for me., am trying to change my programming path from VB to C++., i wish myself good luck. Thank you again.

[ThatsAlok]

who the f*** voted you down here! let me even it

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers, Alok Gupta VC Forum Q&A :- I/IV Support CRY- Child Relief and You