C / C++ / MFC

<br />
	CColorDialog m_dlg;<br />
	m_dlg.DoModal();<br />
	COLORREF color=m_dlg.GetColor();<br />

huynhnb wrote:

i have just visited your blog, very cool.

Michael Dunn wrote:

0 is a valid COLORREF - it's black

#pragma once
#include "afxwin.h"

// CColorDialogEx
class CColorDialogEx : public CColorDialog
{
	DECLARE_DYNAMIC(CColorDialogEx)

public:
	CColorDialogEx(COLORREF clrInit = 0, DWORD dwFlags = 0, CWnd* pParentWnd = NULL);
	virtual ~CColorDialogEx();

protected:
	DECLARE_MESSAGE_MAP()
public:
	virtual BOOL OnInitDialog();
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnMouseMove(UINT nFlags, CPoint point);

	CEdit m_editRed;
	CEdit m_editGreen;
	CEdit m_editBlue;

private:
	void UpdateHexValues();
};

// ColorDialogEx.cpp : implementation file
//
#include "stdafx.h"
#include "ColorDialogEx.h"
#include ".\colordialogex.h"

// CColorDialogEx

IMPLEMENT_DYNAMIC(CColorDialogEx, CColorDialog)
CColorDialogEx::CColorDialogEx(COLORREF clrInit, DWORD dwFlags, CWnd* pParentWnd) :
	CColorDialog(clrInit, dwFlags, pParentWnd)
{
}

CColorDialogEx::~CColorDialogEx()
{
}

BEGIN_MESSAGE_MAP(CColorDialogEx, CColorDialog)
	ON_WM_LBUTTONDOWN()
	ON_WM_MOUSEMOVE()
END_MESSAGE_MAP()

// CColorDialogEx message handlers
BOOL CColorDialogEx::OnInitDialog()
{
	CColorDialog::OnInitDialog();

	// TODO:  Add extra initialization here

	CWnd *pRed = GetDlgItem(706);
	CWnd *pGreen = GetDlgItem(707);
	CWnd *pBlue = GetDlgItem(708);

	CRect rcRed;
	CRect rcGreen;
	CRect rcBlue;

	pRed->GetWindowRect(&rcRed);
	ScreenToClient(&rcRed);

	pGreen->GetWindowRect(&rcGreen);
	ScreenToClient(&rcGreen);

	pBlue->GetWindowRect(&rcBlue);
	ScreenToClient(&rcBlue);

	pRed->ShowWindow(SW_HIDE);
	pGreen->ShowWindow(SW_HIDE);
	pBlue->ShowWindow(SW_HIDE);

	m_editRed.CreateEx(WS_EX_CLIENTEDGE, _T("EDIT"), NULL, ES_LEFT | WS_CHILD | WS_VISIBLE | WS_TABSTOP , rcRed, this, 1000);
	m_editGreen.CreateEx(WS_EX_CLIENTEDGE, _T("EDIT"), NULL, ES_LEFT | WS_CHILD | WS_VISIBLE | WS_TABSTOP ,rcGreen, this, 2000);
	m_editBlue.CreateEx(WS_EX_CLIENTEDGE, _T("EDIT"), NULL,  ES_LEFT | WS_CHILD | WS_VISIBLE | WS_TABSTOP , rcBlue, this, 3000);

	m_editRed.SetFont(GetFont());
	m_editGreen.SetFont(GetFont());
	m_editBlue.SetFont(GetFont());

	UpdateHexValues();

	return TRUE;  // return TRUE unless you set the focus to a control
	// EXCEPTION: OCX Property Pages should return FALSE
}

void CColorDialogEx::UpdateHexValues()
{
	CWnd *pRed = GetDlgItem(706);
	CWnd *pGreen = GetDlgItem(707);
	CWnd *pBlue = GetDlgItem(708);

	CString strTemp;
	int nTemp;
	pRed->GetWindowText(strTemp);
	nTemp = _ttoi(strTemp);
	strTemp.Format(_T("%02X"), nTemp);
	m_editRed.SetWindowText(strTemp);

	pGreen->GetWindowText(strTemp);
	nTemp = _ttoi(strTemp);
	strTemp.Format(_T("%02X"), nTemp);
	m_editGreen.SetWindowText(strTemp);

	pBlue->GetWindowText(strTemp);
	nTemp = _ttoi(strTemp);
	strTemp.Format(_T("%02X"), nTemp);
	m_editBlue.SetWindowText(strTemp);
}

void CColorDialogEx::OnLButtonDown(UINT nFlags, CPoint point)
{
	// TODO: Add your message handler code here and/or call default
	CColorDialog::OnLButtonDown(nFlags, point);
	UpdateHexValues();
}

void CColorDialogEx::OnMouseMove(UINT nFlags, CPoint point)
{
	// TODO: Add your message handler code here and/or call default
	CColorDialog::OnMouseMove(nFlags, point);
	if(GetCapture() == this)
	{
		UpdateHexValues();
	}
}

Checker2003 wrote:

strRegPos = strColOrder[p];