更改对话框的背景颜色 mfc
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
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