//=========================================================
//
// Copyright (c) 2000-2004  iWise Technologies，Co. Ltd.
// All Rights Reserved.
//
// Class: CTransparentStatic

//
// Product: iW988
// File   : TransparentStatic.h
// Author : 天衣有缝

// TransparentStatic.cpp : implementation file
//

#include "stdafx.h" 
#include "TransparentStatic.h" 

// CTransparentStatic

IMPLEMENT_DYNAMIC(CTransparentStatic, CStatic)
CTransparentStatic::CTransparentStatic()
{
}

CTransparentStatic::~CTransparentStatic()
{
}

BEGIN_MESSAGE_MAP(CTransparentStatic, CStatic)
	ON_WM_PAINT()
END_MESSAGE_MAP()

// CTransparentStatic message handlers

void CTransparentStatic::OnPaint()
{
	CPaintDC dc(this); // 控件的设备文件

	// 取得位置
	CRect client_rect;
	GetClientRect(client_rect);

	// 取得文本
	CString szText;
	GetWindowText(szText);

	// 取得字体，并选入设备文件
	CFont *pFont, *pOldFont;
	pFont = GetFont();
	pOldFont = dc.SelectObject(pFont);

	// 用透明背景填充设备文件
	dc.SetBkMode(TRANSPARENT);

	// 显示文字
	dc.DrawText(szText, client_rect, 0);

	// 清除字体
	dc.SelectObject(pOldFont);

}


 
 
转载请注意：
下面的背景对话框是从CButtonST整理二来，
版权属于：Davide Calabro' [email protected]

//=========================================================
//
// Copyright (c) 2000-2004  iWise Technologies，Co. Ltd.
// All Rights Reserved.
//
// Class: CBkDialogST
//
// Product: iW988
// File   : BkDialogST.h
// Author : 天衣有缝
// Created: 2004.12.29 23:50
//  
// Description:
//     ValueAdded main program for iW988.
//                   Contact:ShenZhen @ GuangDong
//                       [email protected]
//
//========================================================= 
#pragma once 

class CBkDialogST : public CDialog
{
public:
	CBkDialogST(CWnd* pParent = NULL);				// 标准构造函数
	CBkDialogST(UINT uResourceID, CWnd* pParent = NULL);
	CBkDialogST(LPCTSTR pszResourceID, CWnd* pParent = NULL);
	virtual ~CBkDialogST();						// 析构

	DWORD SetMode(BYTE byMode, BOOL bRepaint = TRUE);		// 设置背景位图显示模式

	DWORD SetBitmap(HBITMAP hBitmap);				// 设置背景位图
	DWORD SetBitmap(int nBitmap);					// 设置背景位图

	DWORD ActivateEasyMoveMode(BOOL bActivate);			// 客户区可以随意拖动
	DWORD ShrinkToFit(BOOL bRepaint = TRUE);			// 使对话框只显示一个背景位图大小，左上角位置不变

	enum	{							// 背景位图显示模式
			BKDLGST_MODE_TILE	,				// 平铺
			BKDLGST_MODE_CENTER	,				// 居中
			BKDLGST_MODE_STRETCH	,				// 拉伸
			BKDLGST_MODE_TILETOP	,				// 只平铺一行，top
			BKDLGST_MODE_TILEBOTTOM	,				// 只平铺一行，bottom
			BKDLGST_MODE_TILELEFT	,				// 只平铺一列，left
			BKDLGST_MODE_TILERIGHT	,				// 只平铺一列，right
			BKDLGST_MODE_TOPLEFT	,				// 只显示一图：top left
			BKDLGST_MODE_TOPRIGHT	,				// 只显示一图：top right
			BKDLGST_MODE_TOPCENTER	,				// 只显示一图：top center
			BKDLGST_MODE_BOTTOMLEFT	,				// 只显示一图：bottom left
			BKDLGST_MODE_BOTTOMRIGHT,				// 只显示一图：bottom right
			BKDLGST_MODE_BOTTOMCENTER,				// 只显示一图：bottom center

			BKDLGST_MAX_MODES
		};

	enum	{
			BKDLGST_OK		,				// 函数设置成功
			BKDLGST_INVALIDRESOURCE	,				// 无效的位图资源
			BKDLGST_INVALIDMODE				         // 无效的显示模式
		};

protected:
	//{{AFX_MSG(CBkDialogST)
	afx_msg BOOL OnEraseBkgnd(CDC* pDC);
	afx_msg void OnSize(UINT nType, int cx, int cy);
	//}}AFX_MSG
	virtual void DoDataExchange(CDataExchange* pDX);		 // DDX/DDV 支持
	virtual void OnPostEraseBkgnd(CDC* pDC);			 // 扩展功能
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);		 // 支持鼠标拖动对话框

	static short GetVersionI()		{return 11;}	 // 程序版本
	static LPCTSTR GetVersionC()	{return (LPCTSTR)_T("1.1");}// 程序版本

private:
	void Init();
	void FreeResources(BOOL bCheckForNULL = TRUE);

	HBITMAP		m_hBitmap		; // 位图句柄Handle to bitmap
	DWORD		m_dwWidth		; // 位图宽度
	DWORD		m_dwHeight		; // 位图高度
	BYTE		m_byMode		; // 当前显示模式
	BOOL		m_bEasyMoveMode		; // 是否可用鼠标拖动对话框

	DECLARE_MESSAGE_MAP()
};
 
 
//=========================================================
//
// Copyright (c) 2000-2004  iWise Technologies，Co. Ltd.
// All Rights Reserved.
//
// Class: CBkDialogST
//
// Product: iW988
// File   : BkDialogST.cpp
// Author : 天衣有缝
// Created: 2004.12.29 23:50
//  
// Description:
//     ValueAdded main program for iW988.
//                   Contact:ShenZhen @ GuangDong
//                       [email protected]
//
//========================================================= 
 
#include "stdafx.h" 
#include "BkDialogST.h" 

CBkDialogST::CBkDialogST(CWnd* pParent /*=NULL*/)
{
	Init();
}

CBkDialogST::CBkDialogST(UINT uResourceID, CWnd* pParent)
	: CDialog(uResourceID, pParent)
{
	Init();
}


CBkDialogST::CBkDialogST(LPCTSTR pszResourceID, CWnd* pParent)
	: CDialog(pszResourceID, pParent)
{
	Init();
}

CBkDialogST::~CBkDialogST()
{
	FreeResources();
}

void CBkDialogST::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CBkDialogST, CDialog)
	ON_WM_ERASEBKGND()
	ON_WM_SIZE()
	ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()

void CBkDialogST::Init()
{
	FreeResources(FALSE);

	// 默认的位图显示模式
	m_byMode = BKDLGST_MODE_TILE;

	// 客户区可以随意拖动窗口
	m_bEasyMoveMode = TRUE;
}

void CBkDialogST::FreeResources(BOOL bCheckForNULL)
{
	// 卸载资源
	if (bCheckForNULL == TRUE)
	{
		if (m_hBitmap)	::DeleteObject(m_hBitmap);
	}

	m_hBitmap = NULL;
	m_dwWidth = 0;
	m_dwHeight = 0;
}

void CBkDialogST::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// 客户区可以随意拖动窗口
	if (m_bEasyMoveMode == TRUE)
	    PostMessage(WM_NCLBUTTONDOWN, HTCAPTION, MAKELPARAM(point.x, point.y));
	
	CDialog::OnLButtonDown(nFlags, point);
}

DWORD CBkDialogST::ActivateEasyMoveMode(BOOL bActivate)
{
	// 设置是否可以随意拖动窗口
	m_bEasyMoveMode = bActivate;
	return BKDLGST_OK;
}

DWORD CBkDialogST::SetBitmap(int nBitmap)
{
	HBITMAP		hBitmap	= NULL;
	HINSTANCE	hInstResource	= NULL;

	// 找到位图资源的句柄
	hInstResource = AfxFindResourceHandle(MAKEINTRESOURCE(nBitmap), RT_BITMAP);

	// 加载位图
	hBitmap = (HBITMAP)::LoadImage(hInstResource, MAKEINTRESOURCE(nBitmap), IMAGE_BITMAP, 0, 0, 0);

	return SetBitmap(hBitmap);	// 调用下面的函数
}

DWORD CBkDialogST::SetBitmap(HBITMAP hBitmap)
{
	int	nRetValue;
	BITMAP	csBitmapSize;

	// 卸载资源
	FreeResources();

	if (hBitmap)
	{
		m_hBitmap = hBitmap;

		// 取得位图信息
		nRetValue = ::GetObject(hBitmap, sizeof(csBitmapSize), &csBitmapSize);
		if (nRetValue == 0)
		{
			// 无效的位图句柄
			FreeResources();
			return BKDLGST_INVALIDRESOURCE;
		}
		m_dwWidth = (DWORD)csBitmapSize.bmWidth;	// 位图宽度
		m_dwHeight = (DWORD)csBitmapSize.bmHeight;	// 位图高度
	}

	Invalidate();

	return BKDLGST_OK;
}

DWORD CBkDialogST::SetMode(BYTE byMode, BOOL bRepaint)
{
	if (byMode >= BKDLGST_MAX_MODES)	return BKDLGST_INVALIDMODE;

	// 设置位图显示模式
	m_byMode = byMode;

	if (bRepaint == TRUE)	Invalidate();

	return BKDLGST_OK;
}

DWORD CBkDialogST::ShrinkToFit(BOOL bRepaint)
{
	// 使对话框只显示一个背景位图大小，左上角位置不变
	CRect	rWnd;
	CRect	rClient;
	DWORD	dwDiffCX;
	DWORD	dwDiffCY;

	::GetWindowRect(m_hWnd, &rWnd);			// 相对于屏幕的位置
	::GetClientRect(m_hWnd, &rClient);		// 客户区相对于对话框左上角的位置

	dwDiffCX = rWnd.Width() - rClient.Width();	// 左右边框线宽度之和
	dwDiffCY = rWnd.Height() - rClient.Height();	// 对话框标题兰和下边框宽度之和

	m_byMode = BKDLGST_MODE_CENTER;			// 显示模式为居中一副图

	// 计算边框大小，再移动之，使客户区只显示一个位图大小
	MoveWindow(rWnd.left, rWnd.top, dwDiffCX + m_dwWidth, dwDiffCY + m_dwHeight, bRepaint);

	return BKDLGST_OK;
}

void CBkDialogST::OnSize(UINT nType, int cx, int cy) 
{
	CDialog::OnSize(nType, cx, cy);

	// 如果有位图资源则重画
	if (m_hBitmap != NULL)
	{
		Invalidate();
	}
}

void CBkDialogST::OnPostEraseBkgnd(CDC* pDC)
{
	// 留作扩展用
}

BOOL CBkDialogST::OnEraseBkgnd(CDC* pDC) 
{
	CRect		rWnd;
	int		nX			= 0;
	int		nY			= 0;

	BOOL	bRetValue = CDialog::OnEraseBkgnd(pDC);

	// 位图加载时才执行重画背景
	if (m_hBitmap)
	{
		GetClientRect(rWnd);		// 客户区位置，相对于对话框左上角

		CDC		dcMemoryDC;	// 目标图形设备
		CBitmap		bmpMemoryBitmap;  // 上面设备的位图
		CBitmap*	pbmpOldMemoryBitmap = NULL;

		dcMemoryDC.CreateCompatibleDC(pDC);			// 创建与设备文件兼容的内存图形设备
		bmpMemoryBitmap.CreateCompatibleBitmap(pDC, rWnd.Width(), rWnd.Height());
								// 用内存图形设备初始化这个内存位图
		pbmpOldMemoryBitmap = (CBitmap*)dcMemoryDC.SelectObject(&bmpMemoryBitmap);
								// 内存图形设备中选入这个位图
		dcMemoryDC.FillSolidRect(rWnd, pDC->GetBkColor());	// 填充背景色


		CDC		dcTempDC;		// 源图形设备，位图先选入之
		HBITMAP		hbmpOldTempBitmap = NULL;
		dcTempDC.CreateCompatibleDC(pDC);
		hbmpOldTempBitmap = (HBITMAP)::SelectObject(dcTempDC.m_hDC, m_hBitmap);

		switch (m_byMode)
		{
			case BKDLGST_MODE_TILE:
				// 平铺位图
				while (nY < rWnd.Height()) 
				{
					while(nX < rWnd.Width()) 
					{
						dcMemoryDC.BitBlt(nX, nY, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
						nX += m_dwWidth;
					}
					nX = 0;
					nY += m_dwHeight;
				}
				break;
			case BKDLGST_MODE_CENTER:
				nX = ((rWnd.Width() - m_dwWidth)/2);
				nY = ((rWnd.Height() - m_dwHeight)/2);
				dcMemoryDC.BitBlt(nX, nY, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
				break;
			case BKDLGST_MODE_STRETCH:
				// 拉伸位图
				dcMemoryDC.StretchBlt(0, 0, rWnd.Width(), rWnd.Height(), &dcTempDC, 0, 0, m_dwWidth, m_dwHeight, SRCCOPY);
				break;
			case BKDLGST_MODE_TILETOP:
				while(nX < rWnd.Width()) 
				{
					dcMemoryDC.BitBlt(nX, 0, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
					nX += m_dwWidth;
				}
				break;
			case BKDLGST_MODE_TILEBOTTOM:
				while(nX < rWnd.Width()) 
				{
					dcMemoryDC.BitBlt(nX, rWnd.bottom - m_dwHeight, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
					nX += m_dwWidth;
				}
				break;
			case BKDLGST_MODE_TILELEFT:
				while (nY < rWnd.Height()) 
				{
					dcMemoryDC.BitBlt(0, nY, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
					nY += m_dwHeight;
				}
				break;
			case BKDLGST_MODE_TILERIGHT:
				while (nY < rWnd.Height()) 
				{
					dcMemoryDC.BitBlt(rWnd.right - m_dwWidth, nY, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
					nY += m_dwHeight;
				}
				break;
			case BKDLGST_MODE_TOPLEFT:
				dcMemoryDC.BitBlt(0, 0, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
				break;
			case BKDLGST_MODE_TOPRIGHT:
				dcMemoryDC.BitBlt(rWnd.right - m_dwWidth, 0, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
				break;
			case BKDLGST_MODE_TOPCENTER:
				nX = ((rWnd.Width() - m_dwWidth)/2);
				dcMemoryDC.BitBlt(nX, 0, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
				break;
			case BKDLGST_MODE_BOTTOMLEFT:
				dcMemoryDC.BitBlt(0, rWnd.bottom - m_dwHeight, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
				break;
			case BKDLGST_MODE_BOTTOMRIGHT:
				dcMemoryDC.BitBlt(rWnd.right - m_dwWidth, rWnd.bottom - m_dwHeight, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
				break;
			case BKDLGST_MODE_BOTTOMCENTER:
				nX = ((rWnd.Width() - m_dwWidth)/2);
				dcMemoryDC.BitBlt(nX, rWnd.bottom - m_dwHeight, m_dwWidth, m_dwHeight, &dcTempDC, 0, 0, SRCCOPY);
				break;
		}

		pDC->BitBlt(0, 0, rWnd.Width(), rWnd.Height(), &dcMemoryDC, 0, 0, SRCCOPY);

		OnPostEraseBkgnd(&dcMemoryDC);

		::SelectObject(dcTempDC.m_hDC, hbmpOldTempBitmap);
		dcMemoryDC.SelectObject(pbmpOldMemoryBitmap);
	}

	return bRetValue;
}