VC中控件是否可以指定背景图

2010-01-19 05:22:31 216 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

vc picture控件载入背景图，随控件大小改变在mfc里，想要在Picture控件中载入一张图片有两种方法：静态的和动态的。静态的方法就是图片先载入资源（.rc）文件中，拥有一个唯一的ID；动态的方法就是制定图片的路径名即可。当然这样的方法网上一搜有很多，比如： vc picture控件的分类进行拉总结,(一) 非动态显示图片(即图片先通过资源管理器载入,有一个固定ID)(二) 动态载入图片(即只需要在程序中指定图片的路径即可载入)为方便说明阅读详情

如题

要美化程序不知道能不能给控件（text控件、static控件等）指定背景图

要是可以的话请留下思路~~~

...全文

VC中怎样改变TAB背景色和背景图片找了好久，最后用这种方法搞定的，也是别人的指点重载Tab控件类，类声明和实现文件下面有：#if !defined(AFX_BITMAPTABCTRL_H__7502D762_DAC6_4B57_B2B2_6563A23B9EAF__INCLUDED_)#define AFX_BITMAPTABCTRL_H__7502D762_DAC6_4B57_B2B2_6563A23B9EAF__INC 阅读详情

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zhuweiping2003 2010-01-20

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.cpp文件



// LabelEx.cpp : implementation file

//



#include "stdafx.h"

#include "LabelEx.h"



#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif



/////////////////////////////////////////////////////////////////////////////

// CLabelEx



CLabelEx::CLabelEx()

{

	m_bClicked=FALSE;

	m_bOver=FALSE;

	m_bUnderLine=FALSE;

	m_bAutoUnderLine=FALSE;

	m_bBorder=FALSE;

	m_bHighLight=TRUE;

	m_bBackUnderLine=FALSE;



	m_crText=RGB(0,0,0);

	m_crBorder=RGB(0,0,0);

	m_crBG=RGB(255,255,255);

	m_crUnderLine=RGB(0,0,255);



//	m_hHandCur=AfxGetApp()->LoadCursor(IDC_HAND);//鼠标光标形状手型

}



CLabelEx::~CLabelEx()

{

	if(m_BGBm.GetSafeHandle()!=NULL)

		m_BGBm.DeleteObject();

	if(m_MouseOverBGBm.GetSafeHandle()!=NULL)

		m_MouseOverBGBm.DeleteObject();

	if(m_ClickedBGBm.GetSafeHandle()!=NULL)

		m_ClickedBGBm.DeleteObject();

	if(m_LabelBm.GetSafeHandle()!=NULL)

		m_LabelBm.DeleteObject();

	if(m_MouseOverLabelBm.GetSafeHandle()!=NULL)

		m_MouseOverLabelBm.DeleteObject();

	if(m_ClickedLabelBm.GetSafeHandle()!=NULL)

		m_ClickedLabelBm.DeleteObject();

}





BEGIN_MESSAGE_MAP(CLabelEx, CStatic)

	//{{AFX_MSG_MAP(CLabelEx)

	ON_WM_PAINT()

	ON_WM_MOUSEMOVE()

	ON_WM_LBUTTONDOWN()

	//}}AFX_MSG_MAP

END_MESSAGE_MAP()



/////////////////////////////////////////////////////////////////////////////

// CLabelEx message handlers



void CLabelEx::OnPaint() 

{

	CPaintDC dc(this); // device context for painting

	dc.SetTextColor(m_crText);

	dc.SetBkMode(TRANSPARENT);

	dc.SelectObject(this->GetFont());

	///准备工作

	CRect rect;

	CDC MemDC;

	CPen BorderPen,*pOldPen,UnderLinePen;

	CBrush BGBrush,*pOldBrush;

	BITMAP bm;

	int nTextLeft=0,nTextTop=0; //文字输出的位置



	this->GetClientRect(&rect);



	MemDC.CreateCompatibleDC(&dc);

	MemDC.SetMapMode(dc.GetMapMode());



	///画边框

	if(m_bBorder)

	{

		BorderPen.CreatePen(PS_SOLID,1,m_crBorder);

		BGBrush.CreateSolidBrush(m_crBG);



		pOldPen=dc.SelectObject(&BorderPen);

		pOldBrush=dc.SelectObject(&BGBrush);



		dc.Rectangle(&rect);



		dc.SelectObject(pOldPen);

		dc.SelectObject(pOldBrush);



		rect.DeflateRect(1,1);

	}

	///贴背景图

	if(m_bClicked && m_ClickedBGBm.GetSafeHandle()!=NULL)

	{

		MemDC.SelectObject(m_ClickedBGBm);

		dc.BitBlt(rect.left,rect.top,rect.Width(),rect.Height(),

			&MemDC,0,0,SRCCOPY);

	}

	else if(m_bOver && m_MouseOverBGBm.GetSafeHandle()!=NULL)//鼠标经过的时候

	{

		MemDC.SelectObject(m_MouseOverBGBm);

		dc.BitBlt(rect.left,rect.top,rect.Width(),rect.Height(),

			&MemDC,0,0,SRCCOPY);

	}

	else if(m_BGBm.GetSafeHandle()!=NULL)

	{

		MemDC.SelectObject(m_BGBm);

		dc.BitBlt(rect.left,rect.top,rect.Width(),rect.Height(),

			&MemDC,0,0,SRCCOPY);

	}

	///贴标签图片

	if(m_bClicked && m_ClickedLabelBm.GetSafeHandle()!=NULL)

	{

		m_ClickedLabelBm.GetBitmap(&bm);

		double fScal=bm.bmWidth*1.0/bm.bmHeight;

		nTextLeft=int(rect.Height()*fScal)+4;

		MemDC.SelectObject(m_ClickedLabelBm);

		dc.StretchBlt(rect.left,rect.top,int(rect.Height()*fScal),rect.Height(),

			&MemDC,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY);

	}

	else if(m_bOver && m_MouseOverLabelBm.GetSafeHandle()!=NULL)

	{

		m_MouseOverLabelBm.GetBitmap(&bm);

		double fScal=bm.bmWidth*1.0/bm.bmHeight;

		nTextLeft=int(rect.Height()*fScal)+4;

		MemDC.SelectObject(m_MouseOverLabelBm);

		dc.StretchBlt(rect.left,rect.top,int(rect.Height()*fScal),rect.Height(),

			&MemDC,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY);

	}

	else if(m_LabelBm.GetSafeHandle()!=NULL)

	{

		m_LabelBm.GetBitmap(&bm);

		double fScal=bm.bmWidth*1.0/bm.bmHeight;

		nTextLeft=int(rect.Height()*fScal)+4;

		MemDC.SelectObject(m_LabelBm);

		dc.StretchBlt(rect.left,rect.top,int(rect.Height()*fScal),rect.Height(),

			&MemDC,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY);

	}

	else

	{

		nTextLeft=4;

	}

	///输出文字

	TEXTMETRIC tm;

	dc.GetTextMetrics(&tm);

	CString strText;

	this->GetWindowText(strText);

	//nTextTop=rect.top+(rect.Height()-tm.tmHeight)/2;

	if(strText.GetLength()>0)

	{	

		dc.TextOut(nTextLeft,nTextTop,strText);

	}

	

	///画下划线

	if(m_bUnderLine)

	{

		nTextLeft-=2;

		nTextTop=nTextTop+tm.tmHeight+1;

		UnderLinePen.CreatePen(PS_SOLID,1,m_crUnderLine);

		pOldPen=dc.SelectObject(&UnderLinePen);

		dc.MoveTo(nTextLeft,nTextTop);

		dc.LineTo(nTextLeft+tm.tmAveCharWidth*strText.GetLength(),nTextTop);

	}

}



void CLabelEx::PreSubclassWindow() 

{

	// TODO: Add your specialized code here and/or call the base class

	DWORD dwStyle = GetStyle();

    ::SetWindowLong(GetSafeHwnd(), GWL_STYLE, dwStyle | SS_NOTIFY);

	

	SetFont(GetParent()->GetFont());

	CStatic::PreSubclassWindow();

}



void CLabelEx::OnMouseMove(UINT nFlags, CPoint point) 

{

	// TODO: Add your message handler code here and/or call default

	if (m_bOver)        // Cursor is currently over control

    {

        CRect rect;

        GetClientRect(rect);



        if (!rect.PtInRect(point))

        {

            m_bOver = FALSE;

			if(m_bAutoUnderLine)  ///自动下划线

			{

				this->SetUnderLine(FALSE,RGB(0,0,0));

			}

			if(m_bHighLight)   //自动高亮

			{

				///恢复原来的字体颜色

				this->SetTextColor(m_crBackText);

			}

			RedrawWindow();

            ReleaseCapture();

            return;

        }

    }

    else                      // Cursor has just moved over control

    {

        m_bOver = TRUE;

		if(m_bAutoUnderLine)

		{

			this->SetUnderLine(TRUE,RGB(0,0,255));

		}

		if(m_bHighLight)

		{

			m_crBackText=m_crText;

			this->SetTextColor(RGB(255,255,0));//this->SetTextColor(RGB(0,0,255));

		}

        RedrawWindow();

        SetCapture();

		::SetCursor(m_hHandCur);

    }



	CStatic::OnMouseMove(nFlags, point);

}



void CLabelEx::SetTextColor(COLORREF crText)

{

	m_crText=crText;

}



void CLabelEx::SetUnderLine(BOOL bUnderLine, COLORREF crUnderLine)

{

	m_bUnderLine=bUnderLine;

	m_crUnderLine=crUnderLine;



}



void CLabelEx::SetBorder(BOOL bBorder, COLORREF crBorder)

{

	m_bBorder=bBorder;

	m_crBorder=crBorder;

}



void CLabelEx::SetBkColor(COLORREF crBkColor)

{

	m_crBG=crBkColor;



}



void CLabelEx::EnableAutoUnderLine(BOOL bAutoUnderLine)

{

	m_bAutoUnderLine=bAutoUnderLine;

	if(m_bAutoUnderLine)   ///设置了自动下划线

	{

		m_bBackUnderLine=m_bUnderLine;//保存原来下划线的状态

		m_bUnderLine=FALSE;

	}

	else   ///取消了自动下划线

	{

		m_bUnderLine=m_bBackUnderLine;//回复原来下划线的状态

	}

}



void CLabelEx::RedrawWindow()

{

	CStatic::RedrawWindow();

	//RECT rect;

	//this->GetWindowRect(&rect);

	//GetParent()->ScreenToClient(&rect);

	//GetParent()->InvalidateRect(&rect);

}



void CLabelEx::SetBGBitmap(UINT ID)

{

	if(m_BGBm.GetSafeHandle()!=NULL)

		m_BGBm.DeleteObject();

	m_BGBm.LoadBitmap(ID);



}



void CLabelEx::SetMouseOverBGBitmap(UINT ID)

{

	if(m_MouseOverBGBm.GetSafeHandle()!=NULL)

		m_MouseOverBGBm.DeleteObject();

	m_MouseOverBGBm.LoadBitmap(ID);

}



void CLabelEx::SetClickedBGBitmap(UINT ID)

{

	if(m_ClickedBGBm.GetSafeHandle()!=NULL)

		m_ClickedBGBm.DeleteObject();

	m_ClickedBGBm.LoadBitmap(ID);



}



void CLabelEx::SetLabelBitmap(UINT ID)

{

	if(m_LabelBm.GetSafeHandle()!=NULL)

		m_LabelBm.DeleteObject();

	m_LabelBm.LoadBitmap(ID);



}





void CLabelEx::OnLButtonDown(UINT nFlags, CPoint point) 

{

	// TODO: Add your message handler code here and/or call default

	m_bClicked=!m_bClicked;

	RedrawWindow();

	CStatic::OnLButtonDown(nFlags, point);

}



void CLabelEx::SetMouseOverLabelBitmap(UINT ID)

{

	if(m_MouseOverLabelBm.GetSafeHandle()!=NULL)

		m_MouseOverLabelBm.DeleteObject();

	m_MouseOverLabelBm.LoadBitmap(ID);



}



void CLabelEx::SetClickedLabelBitmap(UINT ID)

{

	if(m_ClickedLabelBm.GetSafeHandle()!=NULL)

		m_ClickedLabelBm.DeleteObject();

	m_ClickedLabelBm.LoadBitmap(ID);



}



///自动感应字体颜色

void CLabelEx::EnableHighLight(BOOL bHighLight)

{

	m_bHighLight=bHighLight;

}

这个.cpp文件里面的函数也可以按照自己需要进行修改

zhuweiping2003 2010-01-20

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举个例子：
static控件贴背景图的话可以自己写类继承CStatic
下面贴下.h文件和.cpp文件

.h文件



#if !defined(AFX_LABELEX_H__C9BE230C_B8E9_48DE_8022_F3D4F5260B65__INCLUDED_)

#define AFX_LABELEX_H__C9BE230C_B8E9_48DE_8022_F3D4F5260B65__INCLUDED_



#if _MSC_VER > 1000

#pragma once

#endif // _MSC_VER > 1000

// LabelEx.h : header file

//



/////////////////////////////////////////////////////////////////////////////

// CLabelEx window



class CLabelEx : public CStatic

{

// Construction

public:

	CLabelEx();



// Attributes

public:



// Operations

public:



// Overrides

	// ClassWizard generated virtual function overrides

	//{{AFX_VIRTUAL(CLabelEx)

	protected:

	virtual void PreSubclassWindow();

	//}}AFX_VIRTUAL



// Implementation

public:

	void EnableHighLight(BOOL bHighLight);

	void SetClickedLabelBitmap(UINT ID);

	void SetMouseOverLabelBitmap(UINT ID);

	void SetClickedBGBitmap(UINT ID);

	void SetLabelBitmap(UINT ID);

	void SetMouseOverBGBitmap(UINT ID);

	void SetBGBitmap(UINT ID);

	void RedrawWindow();

	void EnableAutoUnderLine(BOOL bAutoUnderLine);

	void SetBkColor(COLORREF crBkColor);

	void SetBorder(BOOL bBorder,COLORREF crBorder);

	void SetUnderLine(BOOL bUnderLine,COLORREF crUnderLine);

	void SetTextColor(COLORREF crText);

	virtual ~CLabelEx();



	// Generated message map functions

protected:

	HCURSOR m_hHandCur;

	CFont m_Font;

	BOOL m_bBorder;

	BOOL m_bClicked;

	BOOL m_bOver;

	BOOL m_bUnderLine,m_bBackUnderLine;

	BOOL m_bAutoUnderLine;

	BOOL m_bHighLight;

	CBitmap m_BGBm,m_MouseOverBGBm,m_ClickedBGBm;

	CBitmap m_LabelBm,m_MouseOverLabelBm,m_ClickedLabelBm;

	COLORREF m_crText,m_crBorder,m_crBG,m_crUnderLine;

	COLORREF m_crBackText;

	//{{AFX_MSG(CLabelEx)

	afx_msg void OnPaint();

	afx_msg void OnMouseMove(UINT nFlags, CPoint point);

	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);

	//}}AFX_MSG



	DECLARE_MESSAGE_MAP()

};



/////////////////////////////////////////////////////////////////////////////



//{{AFX_INSERT_LOCATION}}

// Microsoft Visual C++ will insert additional declarations immediately before the previous line.



#endif // !defined(AFX_LABELEX_H__C9BE230C_B8E9_48DE_8022_F3D4F5260B65__INCLUDED_)

一行乱码 2010-01-20

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谢谢各位高手大大~~~~~

glacierful 2010-01-19

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应该可以。
继承一个类，然后在他的擦除消息中把图用BItBlt或者StretchBlt贴上去，然后return TRUE,应该就可以了。

oldmanzhao 2010-01-19

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text可以用RichTextBox，Static可以获取它的DC，然后用BitBlt

VC中控件是否可以指定背景图

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