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VC中一些控件的小技巧
阅读量:4230 次
发布时间:2019-05-26

本文共 2264 字,大约阅读时间需要 7 分钟。

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1.让List Control有Check Box

用SetExtendedStyle方法可以设置,看代码:

(CListCtrl m_ListCtrl;)

DWORD dwStyle = m_ListCtrl.GetStyle();

dwStyle |= LVS_EX_CHECKBOXES;

m_ListCtrl.SetExtendedStyle(dwStyle);

2.让List Box有Check Box

首先,声明Control变量的时候用CCheckListBox代替CListBox。

然后,将List Box的Has Strings属性改为True;把Ower Draw属性改为Fixed。

3.Spin Control与Edit Control的绑定

首先,要让Spin Control的Tap Order紧跟着Edit Control(就是说,Spin Control的Tap Order是Edit Control的Tap Order加1)。

然后,设置Spin Control的Auto Buddy和Set Buddy Integer属性为True。

4.可以设置背景和文字颜色的Static控件

从CStatic类继承一个自己的Static类,相应WM_CTLCOLOR消息。下面是代码:

.h文件:

class ClxStatic : public CStatic

{

    DECLARE_DYNAMIC(ClxStatic)

public:

    ClxStatic();

    virtual ~ClxStatic();

    afx_msg HBRUSH CtlColor(CDC* /*pDC*/, UINT /*nCtlColor*/);

    void SetBackColor(COLORREF clrBack);

    void SetTextColor(COLORREF clrText);

protected:

    DECLARE_MESSAGE_MAP()

    CBrush m_brushBack;

    COLORREF m_clrBack;

    COLORREF m_clrText;

};

.cpp文件:

IMPLEMENT_DYNAMIC(ClxStatic, CStatic)

ClxStatic::ClxStatic()

{

    m_clrBack = ::GetSysColor(COLOR_BTNFACE);

    m_clrText = ::GetSysColor(COLOR_BTNTEXT);

}

ClxStatic::~ClxStatic()

{

}

void ClxStatic::SetBackColor(COLORREF clrBack)

{

    m_clrBack = clrBack;

}

void ClxStatic::SetTextColor(COLORREF clrText)

{

    m_clrText = clrText;

}

BEGIN_MESSAGE_MAP(ClxStatic, CStatic)

    ON_WM_CTLCOLOR_REFLECT()

END_MESSAGE_MAP()

HBRUSH ClxStatic::CtlColor(CDC* pDC, UINT /*nCtlColor*/)

{

    // TODO:  Change any attributes of the DC here

    m_brushBack.Detach();

    m_brushBack.CreateSolidBrush(m_clrBack);

    pDC->SetBkColor(m_clrBack);

    pDC->SetTextColor(m_clrText);

    // TODO:  Return a non-NULL brush if the parent's handler should not be called

    //return NULL;

    return (HBRUSH)m_brushBack.GetSafeHandle();

}

5.在Static控件中显示BMP

首先,给Static控件添加一个Control变量(ID要改了以后才能添加变量,也就是说ID不能为IDC_STATIC),本例为m_staticTest。

然后,用ModifyStyle函数修改Static控件的Style,让它可以显示图片:

m_staticTest.ModifyStyle(0, SS_BITMAP | SS_CENTERIMAGE);

最后,就是Load文件显示出来:

CRect rect;

m_staticTest.GetWindowRect(&rect);

//  下面的方法是按照Static控件的大小显示bmp,如果要安装图片实际大小显示,用这个方法Load图片:

//  HBITMAP hBmp = (HBITMAP)::LoadImage(0, _T("D://test.bmp"), IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);

HBITMAP hBmp = (HBITMAP)::LoadImage(0, _T("D://test.bmp"), IMAGE_BITMAP, rect.Width(), rect.Height(), LR_LOADFROMFILE);

m_staticTest.SetBitmap(hBmp);

DeleteObject(hBmp);

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