How to Move an MFC Button. [modified]

lgmanuel

hi, I am new to VC++ MFC, i am trying to create a simple app. using MS Visual Studio 2005. i want to move three button to scroll left when i click the left button, same if i click the right button, it should scroll right. then it will stop if i click the center button. but i don't know how to start the code part, all did was to create the GUI. the Design looks like this.. Check URL to view ScreenShot. http://h1.ripway.com/lgmanuel/Imgs/gui.png

modified on Wednesday, July 14, 2010 5:04 AM

Niklas L · modified on Wednesday, July 14, 2010 5:04 AM

Use a timer[^] for the updates and call SetWindowPos()[^] or MoveWindow()[^] to move the buttons.

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lgmanuel

thank you for that info., but i am a total new to VC++ MFC,. where do i put the code. should i just double click the button and add the code like Visual Basic do?

Cedric Moonen

You should really buy a book about VC++. It is nearly impossible to help someone who has almost no knowledge of VC++ or C++ through a forum. It will take ages to explain some basic concepts. You will be much more efficient by reading a book first.

Cédric Moonen Software developer
Charting control [v3.0] OpenGL game tutorial in C++

Niklas L

Pretty much.

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lgmanuel

and how do i get the current coordinates of the three buttons?

lgmanuel

i think that's the best thing to do for now?.. read a book and understand the concepts and terminology used in VC++. anyway, thanks for the advice.

Niklas L

Using GetWindowRect()[^] And then convert to client coords using ScreenToClient()[^]

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lgmanuel

by the way, here is the app. that i was trying create. you can download the project and check it, it's just a design and no codes yet, i just named the controls to their ID's.. what i am tring to do is move the three buttons until they are totally out the the app window.. thanks for the help guys, appreciate it. here is the URL to download the project. http://h1.ripway.com/lgmanuel/VC MFC/MoveTheButton.rar

lgmanuel

..... update by the way, here is the app. that i was trying create. you can download the project and check it, it's just a design and no codes yet, i just named the controls to their ID's.. what i am tring to do is move the three buttons until they are totally out the the app window.. thanks for the help guys, appreciate it. here is the URL to download the project. http://h1.ripway.com/lgmanuel/VC MFC/MoveTheButton.rar

Niklas L

How did you end up in this situation anyway? Did you spice up your CV?

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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.