Radio Button with color C++ - c++

Question

Hy i have build with MFC a interface dialog Box Simply with one radio button.
like this:
CONTROL " Encode",IDC_RADIO1,"Button",BS_AUTORADIOBUTTON | BS_RIGHT | BS_NOTIFY,35,20,41,10,WS_EX_TRANSPARENT in the RC file
i have create la class and with m_radio_0.SubclassDlgItem(IDC_RADIO1, this);.
I have writen my DrawItem. So I have a problem when i click on, i see the checkbow change but never stay check. And when i want getcheck() said 0.
My code is that on:
CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
CString strText;
int h = lpDrawItemStruct->rcItem.bottom - lpDrawItemStruct->rcItem.top;
CRect rect(lpDrawItemStruct->rcItem.left + 2,
lpDrawItemStruct->rcItem.top + 2,
lpDrawItemStruct->rcItem.left + h - 3,
lpDrawItemStruct->rcItem.top + h - 3);
// just draws focus rectangle when listbox is empty
int selChange = lpDrawItemStruct->itemAction & ODA_SELECT;
int focusChange = lpDrawItemStruct->itemAction & ODA_FOCUS;
int drawEntire = lpDrawItemStruct->itemAction & ODA_DRAWENTIRE;
BOOL sel = lpDrawItemStruct->itemState & ODS_SELECTED;
// Draws background rectangle, color depends on transparency
pDC->FillSolidRect(&lpDrawItemStruct->rcItem,::GetSysColor((GetExStyle()&WS_EX_TRANSPARENT) ? COLOR_BTNFACE : COLOR_WINDOW));
if (lpDrawItemStruct->itemState & ODS_SELECTED) //
{
pDC->DrawFrameControl( rect, DFC_BUTTON, DFCS_CHECKED | DFCS_BUTTONRADIO);
CButton::SetCheck(TRUE);
}
else
{
pDC->DrawFrameControl( rect, DFC_BUTTON, DFCS_BUTTONRADIO);
CButton::SetCheck(FALSE);
}
// Draws item text
::SetTextColor(lpDrawItemStruct->hDC, m_crTextColor);
// DEFAULT ==> BS_RIGHT
UINT Option = DT_RIGHT;
if ((uStyle & BS_RIGHT) == BS_RIGHT) Option = DT_RIGHT;
if ((uStyle & BS_LEFT) == BS_LEFT) Option = DT_LEFT;
if ((uStyle & BS_CENTER) == BS_CENTER) Option = DT_CENTER;
GetWindowText(strText);
::DrawText(lpDrawItemStruct->hDC, strText, strText.GetLength(),
&lpDrawItemStruct->rcItem, Option);
::SetBkColor(lpDrawItemStruct->hDC, m_crBkColor);
>
Do have a solution for me.
Thanks

Answer 1

Just my response :
#include the header:
<<
// This file was created on March 28th 2001. By Robert Brault
//
//
#if !defined(AFX_COLORBUTTON_H__714C19E7_EA25_42DF_928A_51AC901B813D__INCLUDED_)
#define AFX_COLORBUTTON_H__714C19E7_EA25_42DF_928A_51AC901B813D__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// ColorRadio.h : header file
//
#include "color.h"
/////////////////////////////////////////////////////////////////////////////
// ColorRadio window
class CColorRadioButton : public CButton
{
// Construction
public:
void SetTextColor(COLORREF crColor); // This Function is to set the Color for the Text.
void SetBkColor(COLORREF crColor); // This Function is to set the BackGround Color for the Text.
void SetCheck(UINT Value);
UINT GetCheck();
CColorRadioButton();
void PreSubclassWindow();
virtual void DrawItem(LPDRAWITEMSTRUCT /*lpDrawItemStruct*/);
DWORD Mystyle;
// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(ColorRadio)
//}}AFX_VIRTUAL
virtual ~CColorRadioButton();
// Generated message map functions
protected:
//{{AFX_MSG(CColorStatic)
CBrush m_brBkgnd; // Holds Brush Color for the Static Text
COLORREF m_crBkColor; // Holds the Background Color for the Text
COLORREF m_crTextColor; // Holds the Color for the Text
BOOL m_rb1Checked;
afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor);
UINT Value_Check;
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
/////////////////////////////////////////////////////////////////////////////
//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
#endif // !defined(AFX_COLORSTATIC_H__614C19E7_EA25_42DF_928A_51AC901B813D__INCLUDED_)
>>
and the class
<<
// This file was created on March 28th 2001 by Robert Brault.
// I created this Class to be able change the Color of your Static Text.
// This is Derived from CButton.
//
// There are three functions available Currently:
// SetBkColor(COLORREF crColor)
// SetTextColor(COLORREF crColor)
//
// How To Use:
// Add three files to your project
// CColorRadioButton.cpp, CColorRadioButton.h and Color.h
// Color.h has (#define)'s for different colors (add any color you desire).
//
// Add #include "CColorRadioButton.h" to your Dialogs Header file.
// Declare an instance of CColorRadioButton for each button being modified.
// Ex. CColorRadioButton m_radio;
//
// In your OnInitDialog() add a SubclassDlgItem for each CColorStatic member variable.
// Ex. m_radio.SubclassDlgItem(IDC_ST_TEXT, this);
// In this same function initialize your color for each piece of text unless you want the default.
// CColorRadioButton.cpp : implementation file
//
#include "stdafx.h"
#include "resource.h"
#include "ColorRadioButton.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CColorRadioButton
CColorRadioButton::CColorRadioButton()
{
m_crBkColor = ::GetSysColor(COLOR_3DFACE); // Initializing the Background Color to the system face color.
m_crTextColor = BLACK; // Initializing the text to Black
m_brBkgnd.CreateSolidBrush(m_crBkColor); // Create the Brush Color for the Background.
}
CColorRadioButton::~CColorRadioButton()
{
}
BEGIN_MESSAGE_MAP(CColorRadioButton, CStatic)
//{{AFX_MSG_MAP(CColorStatic)
ON_WM_CTLCOLOR_REFLECT()
ON_WM_CTLCOLOR()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CColorRadioButton message handlers
HBRUSH CColorRadioButton::CtlColor(CDC* pDC, UINT nCtlColor)
{
HBRUSH hbr;
hbr = (HBRUSH)m_brBkgnd; // Passing a Handle to the Brush
pDC->SetBkColor(m_crBkColor); // Setting the Color of the Text Background to the one passed by the Dialog
pDC->SetTextColor(m_crTextColor); // Setting the Text Color to the one Passed by the Dialog
if (nCtlColor) nCtlColor += 0;
return hbr;
}
void CColorRadioButton::SetBkColor(COLORREF crColor)
{
m_crBkColor = crColor; // Passing the value passed by the dialog to the member varaible for Backgound Color
m_brBkgnd.DeleteObject(); // Deleting any Previous Brush Colors if any existed.
m_brBkgnd.CreateSolidBrush(crColor); // Creating the Brush Color For the Static Text Background
RedrawWindow();
}
void CColorRadioButton::SetTextColor(COLORREF crColor)
{
m_crTextColor = crColor;
RedrawWindow();
}
void CColorRadioButton::SetCheck(UINT Value)
{
m_rb1Checked = Value;
RedrawWindow();
}
UINT CColorRadioButton::GetCheck()
{
return (m_rb1Checked);
}
void CColorRadioButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
UINT uStyle = Mystyle;
CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
CString strText;
UINT Option = DT_RIGHT;
CRect rcBullet(&lpDrawItemStruct->rcItem);
rcBullet.right = rcBullet.left + rcBullet.Height();
GetWindowText(strText);
pDC->FillSolidRect(&lpDrawItemStruct->rcItem,::GetSysColor((GetExStyle()&WS_EX_TRANSPARENT) ? COLOR_BTNFACE : COLOR_WINDOW));
UINT nState = DFCS_BUTTONRADIO|DFCS_ADJUSTRECT;
if (m_rb1Checked) nState |= DFCS_CHECKED;
pDC->DrawFrameControl(rcBullet, DFC_BUTTON, nState);
if ((uStyle & BS_RIGHT) == BS_RIGHT) Option = DT_RIGHT;
if ((uStyle & BS_LEFT) == BS_LEFT) Option = DT_LEFT;
if ((uStyle & BS_CENTER) == BS_CENTER) Option = DT_CENTER;
::SetTextColor(lpDrawItemStruct->hDC, m_crTextColor);
::DrawText(lpDrawItemStruct->hDC, strText, strText.GetLength(), &lpDrawItemStruct->rcItem, Option);
}
void CColorRadioButton::PreSubclassWindow()
{
CButton::PreSubclassWindow();
Mystyle =GetButtonStyle()| BS_OWNERDRAW;
SetButtonStyle(Mystyle);
}
in your's dlg header do
<<
CColorRadioButton m_radio_0;
>>
and then you can call it
<<`enter code here`
m_radio_0.SubclassDlgItem(IDC_RADIO1, this);
m_radio_0.SetTextColor(GREEN);
m_radio_0.SetCheck(BST_CHECKED);
>
It's Simply in fact