Microsoft KB Archive/115087

= How To Change the Background Color of a Common Dialog =

Article ID: 115087

Article Last Modified on 11/21/2006

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APPLIES TO

 Microsoft Foundation Class Library 4.2, when used with:  Microsoft Visual C++ 1.0 Professional Edition

 Microsoft Visual C++ 1.5 Professional Edition

 Microsoft Visual C++ 1.51

 Microsoft Visual C++ 1.52 Professional Edition</li></ul>

 Microsoft Visual C++ 1.0 Professional Edition</li></ul>

 Microsoft Visual C++ 2.0 Professional Edition</li></ul>

 Microsoft Visual C++ 4.0 Standard Edition</li></ul> </li></ul>

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This article was previously published under Q115087

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SUMMARY
The common dialog-box classes provided by MFC can be used to modify the background color for common dialog boxes such as the File Open dialog box and the Print dialog box. It is necessary to derive a class from one of the MFC common dialog classes then override the OnCtlColor and OnDestroy member functions.

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MORE INFORMATION
The sample code below uses the CFileDialog common dialog-box class to demonstrate the process. Class Wizard was used to a generate message- handling function for the WM_CTLCOLOR message. The function called is "CMyDlg::OnCtlColor".

Sample Code
// mydlg.h : header file //   #include <dlgs.h>   ////////////////////////////////////////////////////////////////////// // CMyDlg dialog

class CMyDlg : public CFileDialog {  // Construction public: CMyDlg(CWnd* pParent = NULL);  // standard constructor

// Add a CBrush pointer to store the new background brush CBrush m_pBkBrush;

// Dialog Data //AFX_DATA

// Implementation protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support

// Generated message map functions //AFX_MSG DECLARE_MESSAGE_MAP };

// mydlg.cpp : implementation file //   #include "stdafx.h"   #include <afxdlgs.h>   #include "mydlg.h"

#ifdef _DEBUG #undef THIS_FILE static char BASED_CODE THIS_FILE[] = __FILE__; #endif

//////////////////////////////////////////////////////////////////////   // CMyDlg dialog

CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/) : CFileDialog(TRUE, NULL, NULL, OFN_HIDEREADONLY) {      //AFX_DATA_INIT }

void CMyDlg::DoDataExchange(CDataExchange* pDX) {      CDialog::DoDataExchange(pDX); //AFX_DATA_MAP }

BEGIN_MESSAGE_MAP(CMyDlg, CFileDialog) //AFX_MSG_MAP END_MESSAGE_MAP

//////////////////////////////////////////////////////////////////////   // CMyDlg message handlers

HBRUSH CMyDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) {      switch (nCtlColor) {

case CTLCOLOR_STATIC: // Set the static text to white on blue. pDC->SetTextColor(RGB(255, 255, 255)); pDC->SetBkColor(RGB(0, 0, 255)); // Drop through to return the background brush.

case CTLCOLOR_DLG: return (HBRUSH)(m_pBkBrush.GetSafeHandle);

default: return CFileDialog::OnCtlColor(pDC, pWnd, nCtlColor); }  }

Keywords: kbhowto kbuidesign kbfaq KB115087

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