更改对话框的背景颜色 mfc

问题描述

我正在尝试更改对话框的背景颜色(win 7、vs2010、c++).我试图捕捉 WM_CTLCOLOR ，WM_ERASEBKGND 并改变颜色.我设法以这种方式更改背景颜色，但是当窗口完成上传时，颜色恢复为默认值，但我注意到框架的颜色正确.我认为我正在更改窗口而不是对话框或类似的东西.我用 WTL(不是 AFX)来做这个.

I'm trying to change the background color of a dialog box (win 7, vs2010,c++).I tried to catch WM_CTLCOLOR ,WM_ERASEBKGND and change the color.I manged to change in this way the backgroung color, but when the window is finish to upload itself, the color is back to default but I noticed that the frame is in the right color.I think that I'm changing the window and not the dialog box or something like that.I'm doing this with WTL (not AFX).

我该怎么办?

推荐答案

试试这个:

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
    CAboutDlg();

// Dialog Data
    //{{AFX_DATA(CAboutDlg)
    enum { IDD = IDD_ABOUTBOX };
    //}}AFX_DATA

    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(CAboutDlg)
    protected:
    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
    //}}AFX_VIRTUAL

// Implementation
protected:
    //{{AFX_MSG(CAboutDlg)
    //}}AFX_MSG
    afx_msg BOOL OnEraseBkgnd(CDC* pDC);
    DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
    //{{AFX_DATA_INIT(CAboutDlg)
    //}}AFX_DATA_INIT
}

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

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
    //{{AFX_MSG_MAP(CAboutDlg)
    ON_WM_ERASEBKGND()
    //}}AFX_MSG_MAP

END_MESSAGE_MAP()




BOOL CAboutDlg::OnEraseBkgnd(CDC* pDC)
{
    CRect rect;
    GetClientRect(&rect);
    CBrush myBrush(RGB(255, 255, 255));    // dialog background color
    CBrush *pOld = pDC->SelectObject(&myBrush);
    BOOL bRes  = pDC->PatBlt(0, 0, rect.Width(), rect.Height(), PATCOPY);
    pDC->SelectObject(pOld);    // restore old brush
    return bRes;                       // CDialog::OnEraseBkgnd(pDC);
}

看看 这里

这篇关于更改对话框的背景颜色 mfc的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！