VC++实现工具栏上添加平面组合框控件.doc

VC+实现工具栏上添加平面组合框控件网站建设-找友创互联 开网店-找友创互联 0元招收代理【CN域名0.5元】 2008年11月13日 社区交流关键字： xcopy AppBuilder CRecordSet FileMapping File Mapping VC+实现工具栏上添加平面组合框控件。 但是仅仅产生平面组合框是不够的，必须实现组合框的消息响应函数，才能方便地运用组合框。在Vsiaul C+中，消息响应函数通常都是用类向导来实现，但是此处由于组合框是用函数创建的，所以必须亲自动手来写代码，也并不麻烦，与类向导生成的代码格式是一样的，可以参照来写。下面代码定义了组合框的选择变化消息响应函数：/BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)/AFX_MSG_MAP(CMainFrame)ON_WM_CREATE()ON_CBN_SELENDOK(ID_TOOL_ZOOM, OnSelectZoomed)/AFX_MSG_MAPEND_MESSAGE_MAP()/afx_msg void OnSelectZoomed();二、编程步骤1、启动Visual C+6.0，生成一个单文档项目，将该项目命名为ToolBar；2、通过资源编辑器新增一个工具按钮，Caption设置为空，ID资源标志符命名为ID_TOOL_ZOOM；3、启动Class Wizard从CToolBar派生一个新类CMainToolBar；4、在MainFrm.h文件中添加#include MainToolBar.h语句，然后找到 CToolBar m_wndToolBar语句，用CMainToolBar代替CToolBar；5、添加代码，编译运行程序。三、程序代码/ FlatComboBox.h : header file#if !defined(FLATCOMBOBOX_H_INCLUDED)#define FLATCOMBOBOX_H_INCLUDED#if _MSC_VER 1000#pragma once#endif / _MSC_VER 1000#define FC_DRAWNORMAL 0x00000001#define FC_DRAWRAISED 0x00000002#define FC_DRAWPRESSD 0x00000004/ CFlatComboBox windowclass CFlatComboBox : public CComboBox/ Constructionpublic:CFlatComboBox();/ Attributespublic:bool m_bLBtnDown;COLORREF m_clrHilite;COLORREF m_clrShadow;COLORREF m_clrDkShad;COLORREF m_clrButton;/ Operationspublic:void DrawCombo(DWORD dwStyle, COLORREF clrTopLeft,COLORREF clrBottomRight);int Offset();/ Overrides/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CFlatComboBox)/AFX_VIRTUAL/ Implementationpublic:virtual CFlatComboBox();/ Generated message map functionsprotected:/AFX_MSG(CFlatComboBox)afx_msg void OnMouseMove(UINT nFlags, CPoint point);afx_msg void OnLButtonDown(UINT nFlags, CPoint point);afx_msg void OnLButtonUp(UINT nFlags, CPoint point);afx_msg void OnTimer(UINT nIDEvent);afx_msg void OnPaint();/AFX_MSGDECLARE_MESSAGE_MAP();#endif / !defined(FLATCOMBOBOX_H_INCLUDED)/#include stdafx.h#include FlatComboBox.h#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CFlatComboBoxCFlatComboBox:CFlatComboBox()m_bLBtnDown = false;CFlatComboBox:CFlatComboBox()BEGIN_MESSAGE_MAP(CFlatComboBox, CComboBox)/AFX_MSG_MAP(CFlatComboBox)ON_WM_MOUSEMOVE()ON_WM_LBUTTONDOWN()ON_WM_LBUTTONUP()ON_WM_TIMER()ON_WM_PAINT()/AFX_MSG_MAPEND_MESSAGE_MAP()/ CFlatComboBox message handlersvoid CFlatComboBox:OnMouseMove(UINT nFlags, CPoint point)SetTimer(1,10,NULL);CComboBox:OnMouseMove(nFlags, point);void CFlatComboBox:OnLButtonDown(UINT nFlags, CPoint point)m_bLBtnDown = true;CComboBox:OnLButtonDown(nFlags, point);void CFlatComboBox:OnLButtonUp(UINT nFlags, CPoint point)m_bLBtnDown = false;Invalidate();CComboBox:OnLButtonUp(nFlags, point);void CFlatComboBox:OnTimer(UINT nIDEvent)POINT pt;GetCursorPos(&pt);CRect rcItem;GetWindowRect(&rcItem);static bool bPainted = false;/ OnLButtonDown, show pressed.if (m_bLBtnDown=true) KillTimer (1);if (bPainted = true) DrawCombo(FC_DRAWPRESSD, :GetSysColor(COLOR_BTNSHADOW),:GetSysColor(COLOR_BTNHIGHLIGHT);bPainted = false;return;/ If mouse leaves, show flat.if (!rcItem.PtInRect(pt) KillTimer (1);if (bPainted = true) DrawCombo(FC_DRAWNORMAL, :GetSysColor(COLOR_BTNFACE), :GetSysColor(COLOR_BTNFACE);bPainted = false;return;/ On mouse over, show raised.else if (bPainted = true)return;else bPainted = true;DrawCombo(FC_DRAWRAISED, :GetSysColor(COLOR_BTNSHADOW), :GetSysColor(COLOR_BTNHIGHLIGHT);CComboBox:OnTimer(nIDEvent);void CFlatComboBox:OnPaint()Default();DrawCombo(FC_DRAWNORMAL, :GetSysColor(COLOR_BTNFACE),:GetSysColor(COLOR_BTNFACE);void CFlatComboBox:DrawCombo(DWORD dwStyle, COLORREF clrTopLeft,COLORREF clrBottomRight)CRect rcItem;GetClientRect(&rcItem);CDC* pDC = GetDC();/ Cover up dark 3D shadow.pDC-Draw3dRect(rcItem, clrTopLeft, clrBottomRight);rcItem.DeflateRect(1,1);if (!IsWindowEnabled() pDC-Draw3dRect(rcItem, :GetSysColor(COLOR_BTNHIGHLIGHT), :GetSysColor(COLOR_BTNHIGHLIGHT);else pDC-Draw3dRect(rcItem, :GetSysColor(COLOR_BTNFACE),:GetSysColor(COLOR_BTNFACE);/ Cover up dark 3D shadow on drop arrow.rcItem.DeflateRect(1,1);rcItem.left = rcItem.right-Offset();pDC-Draw3dRect(rcItem, :GetSysColor(COLOR_BTNFACE),:GetSysColor(COLOR_BTNFACE);/ Cover up normal 3D shadow on drop arrow.rcItem.DeflateRect(1,1);pDC-Draw3dRect(rcItem, :GetSysColor(COLOR_BTNFACE),:GetSysColor(COLOR_BTNFACE);if (!IsWindowEnabled() return;switch (dwStyle)case FC_DRAWNORMAL:rcItem.top -= 1;rcItem.bottom += 1;pDC-Draw3dRect(rcItem, :GetSysColor(COLOR_BTNHIGHLIGHT),:GetSysColor(COLOR_BTNHIGHLIGHT);rcItem.left -= 1;pDC-Draw3dRect(rcItem, :GetSysColor(COLOR_BTNHIGHLIGHT),:GetSysColor(COLOR_BTNHIGHLIGHT);break;case FC_DRAWRAISED:rcItem.top -= 1;rcItem.bottom += 1;pDC-Draw3dRect(rcItem, :GetSysColor(COLOR_BTNHIGHLIGHT),:GetSysColor(COLOR_BTNSHADOW);break;case FC_DRAWPRESSD:rcItem.top -= 1;rcItem.bottom += 1;rcItem.OffsetRect(1,1);pDC-Draw3dRect(rcItem, :GetSysColor(COLOR_BTNSHADOW),:GetSysColor(COLOR_BTNHIGHLIGHT);break;ReleaseDC(pDC);int CFlatComboBox:Offset()/ Thanks to Todd Brannam for this suggestion.return :GetSystemMetrics(SM_CXHTHUMB);/ MainToolBar.h: interface for the CMainToolBar class.#if !defined(AFX_MAINTOOLBAR_H_76CF28F4_005F_11D7_8F58_00E04C0BECE6_INCLUDED_)#define AFX_MAINTOOLBAR_H_76CF28F4_005F_11D7_8F58_00E04C0BECE6_INCLUDED_#if _MSC_VER 1000#pragma once#endif / _MSC_VER 1000#include FlatComboBox.hclass CMainToolBar : public CToolBarpublic:CMainToolBar();virtual CMainToolBar();public:CFlatComboBox m_wndZoom;#endif/ MainToolBar.cpp: implementation of the CMainToolBar class.#include stdafx.h#include ToolBar.h#include MainToolBar.h#ifdef _DEBUG#undef THIS_FILEstatic char THIS_FILE=_FILE_;#define new DEBUG_NEW#endifCMainToolBar:CMainToolBar()CMainToolBar:CMainToolBar()/int CMainFrame:OnCreate(LPCREATESTRUCT lpCreateStruct)if (CFrameWnd:OnCreate(lpCreateStruct) = -1)return -1;if (!m_wndToolBar.CreateEx(this, TBSTYLE_FLAT, WS_CHILD | WS_VISIBLE |CBRS_TOP| CBRS_GRIPPER | CBRS_TOOLTIPS | CBRS_FLYBY |CBRS_SIZE_DYNAMIC) |!m_wndToolBar.LoadToolBar(IDR_MAINFRAME)TRACE0(Failed to create toolbarn);return -1; / fail to createif (!m_wndStatusBar.Create(this) | !m_wndStatusBar.SetIndicators(indicators,sizeof(indicators)/sizeof(UINT)TRACE0(Failed to create status barn);return -1; / fail to create/ TODO: Delete these three lines if you dont want the toolbar to be dockablem_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);EnableDocking(CBRS_ALIGN_ANY);DockControlBar(&m_wndToolBar);int index = 0;RECT rect;/找到指定的工具项while(m_wndToolBar.GetItemID(index)!=ID_TOOL_ZOOM)index+;/设置指定工具项的宽度并获取新的区域 80是宽度m_wndToolBar.SetButtonInfo(index, ID_TOOL_ZOOM, TBBS_SEPARATOR, 80);m_wndToolBar.GetItemRect(index, &rect);/设置位置rect.top+=2;rect.bottom += 200;/ 创建并显示if (!m_wndToolBar.m_wndZoom.Create(WS_CHILD|WS_VISIBLE |CBS_AUTOHSCROLL|CBS_DROPDOWNLIST |CBS_HASSTR