自绘按钮

普通按钮：

#pragma once#include"stdafx.h"class MyButton : public CButton{private:bool is_pressed;  //鼠标是否按下int type;//按钮形状COLORREF m_bkColor;//背景色COLORREF m_roundColor;//边框色COLORREF m_textColor; //文字色public:virtual void PreSubclassWindow();  //修改自绘属性virtual void DrawItem(LPDRAWITEMSTRUCT /*lpDrawItemStruct*/);  //绘制 圆形按钮void SetAttribute(int,COLORREF, COLORREF, COLORREF);public:DECLARE_MESSAGE_MAP()afx_msg void OnLButtonDown(UINT nFlags, CPoint point);  //鼠标按下afx_msg void OnLButtonUp(UINT nFlags, CPoint point);  //鼠标松开afx_msg BOOL OnEraseBkgnd(CDC* pDC);  //不擦除背景};//实现文件// MyButtonvoid MyButton::SetAttribute(int t=0,COLORREF bk=RGB(255,128,0),COLORREF rd=RGB(0,255,0),COLORREF txt=RGB(255,255,255)){type = t;m_bkColor = bk;m_roundColor= rd;m_textColor=txt;}void MyButton::PreSubclassWindow(){ModifyStyle(0, BS_OWNERDRAW);is_pressed = false;CButton::PreSubclassWindow();}void MyButton::DrawItem(LPDRAWITEMSTRUCT lp){CRect rc = lp->rcItem;CDC dc;dc.Attach(lp->hDC);dc.SetBkMode(TRANSPARENT);CBrush br;if (is_pressed){//按下去的颜色设为一样，都是灰色CPen pen(PS_SOLID, 2, RGB(200, 200, 255));//边框颜色br.CreateSolidBrush(RGB(180, 180,180)); //按钮背景色dc.SelectObject(&br);dc.SelectObject(&pen);switch (type){case 0:dc.Rectangle(0, 0, rc.Width(), rc.Height());dc.Rectangle(1, 1, rc.Width() - 1, rc.Height() - 1);//画边框break;case 1:dc.Ellipse(0, 0, rc.Width(), rc.Height());dc.Ellipse(1, 1, rc.Width() - 1, rc.Height() - 1);//画边框break;case 2:dc.RoundRect(0, 0, rc.Width(), rc.Height(), 20, 20);dc.RoundRect(1, 1, rc.Width() - 1, rc.Height() - 1, 20, 20);//画边框break;default:break;}}else{CPen pen(PS_SOLID,2, m_roundColor);dc.SelectObject(&pen);br.CreateSolidBrush(m_bkColor); //按钮背景色dc.SelectObject(&br);switch (type){case 0:dc.Rectangle(0, 0, rc.Width(), rc.Height());dc.Rectangle(1, 1, rc.Width() - 1, rc.Height() - 1);//画边框break;case 1:dc.Ellipse(0, 0, rc.Width(), rc.Height());dc.Ellipse(1, 1, rc.Width() - 1, rc.Height() - 1);//画边框break;case 2:dc.RoundRect(0, 0, rc.Width(), rc.Height(), 30,30);dc.RoundRect(1, 1, rc.Width() - 1, rc.Height() - 1, 30, 30);//画边框break;default:break;}}CString str;GetWindowText(str);dc.SetTextColor(m_textColor);dc.DrawText(str, CRect(0, 0, rc.right, rc.bottom), DT_CENTER | DT_VCENTER | DT_SINGLELINE);dc.DeleteDC();}BEGIN_MESSAGE_MAP(MyButton, CButton)ON_WM_LBUTTONDOWN()ON_WM_LBUTTONUP()ON_WM_ERASEBKGND()END_MESSAGE_MAP()void MyButton::OnLButtonDown(UINT nFlags, CPoint point){is_pressed = true;CButton::OnLButtonDown(nFlags, point);}void MyButton::OnLButtonUp(UINT nFlags, CPoint point){is_pressed = false;CButton::OnLButtonUp(nFlags, point);}BOOL MyButton::OnEraseBkgnd(CDC* pDC){return TRUE;  //不擦除背景}

开关按钮：

#pragma once#include"stdafx.h"class MyButton : public CButton{private:int is_open; // 是否打开int type;//按钮形状COLORREF m_bkColor;//背景色COLORREF m_roundColor;//边框色COLORREF m_textColor; //文字色public:virtual void PreSubclassWindow();  //修改自绘属性virtual void DrawItem(LPDRAWITEMSTRUCT /*lpDrawItemStruct*/);  //绘制 圆形按钮void SetAttribute(int,COLORREF, COLORREF, COLORREF);public:DECLARE_MESSAGE_MAP()afx_msg void OnLButtonDown(UINT nFlags, CPoint point);  //鼠标按下afx_msg BOOL OnEraseBkgnd(CDC* pDC);  //不擦除背景};//实现文件// MyButtonvoid MyButton::SetAttribute(int t=0,COLORREF bk=RGB(255,128,0),COLORREF rd=RGB(0,255,0),COLORREF txt=RGB(255,255,255)){type = t;m_bkColor = bk;m_roundColor= rd;m_textColor=txt;}void MyButton::PreSubclassWindow(){ModifyStyle(0, BS_OWNERDRAW);is_open = -1;CButton::PreSubclassWindow();}void MyButton::DrawItem(LPDRAWITEMSTRUCT lp){CRect rc = lp->rcItem;CDC dc;dc.Attach(lp->hDC);dc.SetBkMode(TRANSPARENT);dc.SelectObject(GetStockObject(NULL_PEN));CBrush close, open,round; //分别代表关闭 打开 还有圆的颜色close.CreateSolidBrush(RGB(192, 192, 192));open.CreateSolidBrush(RGB(0, 220, 0));round.CreateSolidBrush(RGB(120, 120, 120));POINT pt = { 15,15};if (is_open == -1){dc.SelectObject(close);dc.RoundRect(rc,pt);dc.SelectObject(round);dc.Ellipse(rc.left+2, rc.top+2, rc.bottom - rc.top-2, rc.bottom-2);}else{dc.SelectObject(open);dc.RoundRect(rc, pt);dc.SelectObject(GetStockObject(WHITE_BRUSH));dc.Ellipse(rc.right-(rc.bottom - rc.top)+2, rc.top+2, rc.right-2, rc.bottom-2);}dc.DeleteDC();}BEGIN_MESSAGE_MAP(MyButton, CButton)ON_WM_LBUTTONDOWN()ON_WM_ERASEBKGND()END_MESSAGE_MAP()void MyButton::OnLButtonDown(UINT nFlags, CPoint point){is_open = -is_open;CButton::OnLButtonDown(nFlags, point);}BOOL MyButton::OnEraseBkgnd(CDC* pDC){return TRUE;  //不擦除背景}

最小化以及关闭按钮：

#pragma once#include"stdafx.h"class MyButton : public CButton{public:MyButton(int t) :type(t) {}virtual void PreSubclassWindow();  //修改自绘属性virtual void DrawItem(LPDRAWITEMSTRUCT /*lpDrawItemStruct*/);  //绘制 圆形按钮public:DECLARE_MESSAGE_MAP()afx_msg BOOL OnEraseBkgnd(CDC* pDC);  //不擦除背景afx_msg void OnTimer(UINT_PTR nIDEvent);void DrawAlphaRect(CRect);private:BOOL bInBtn;//鼠标是否在按钮的区域内int type; //按钮的类型 0为最小化，1为关闭};//实现文件void MyButton::PreSubclassWindow(){ModifyStyle(0, BS_OWNERDRAW);SetTimer(1, 200, NULL);bInBtn = FALSE;CButton::PreSubclassWindow();}void MyButton::DrawItem(LPDRAWITEMSTRUCT lp){CRect rc = lp->rcItem;CDC dc;dc.Attach(lp->hDC);dc.SetBkMode(TRANSPARENT);dc.SelectObject(GetStockObject(NULL_PEN));CPen pen;pen.CreatePen(PS_SOLID, 2, RGB(160,160,160));dc.SelectObject(pen);if (type == 0){dc.MoveTo(rc.left + 6, (rc.bottom - rc.top) / 3 * 2);dc.LineTo(rc.right - 6, (rc.bottom - rc.top) / 3 * 2);}else if (type == 1){dc.MoveTo(rc.left + 6, rc.top + 6);dc.LineTo(rc.right - 6, rc.bottom - 6);dc.MoveTo(rc.left + 6, rc.bottom - 6);dc.LineTo(rc.right - 6, rc.top + 6);}pen.DeleteObject();dc.DeleteDC();}BEGIN_MESSAGE_MAP(MyButton, CButton)ON_WM_ERASEBKGND()ON_WM_TIMER()END_MESSAGE_MAP()BOOL MyButton::OnEraseBkgnd(CDC* pDC){return FALSE;  //不擦除背景}void MyButton::DrawAlphaRect(CRect rect){CDC *dc = GetDC();CDC cdc;cdc.CreateCompatibleDC(dc);CBitmap bitmap, *pOldBitmap;bitmap.CreateCompatibleBitmap(dc, rect.right, rect.bottom);CRect src(rect);src.OffsetRect(CSize(-rect.left, -rect.top));pOldBitmap = cdc.SelectObject(&bitmap);cdc.FillSolidRect(src, RGB(0, 85, 255)); //透明色  if (::AlphaBlend == 0){dc->BitBlt(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, &cdc, src.left, src.top, SRCINVERT);}else {BLENDFUNCTION bf;memset(&bf, 0, sizeof(bf));bf.SourceConstantAlpha = 0x3f; //透明程度//值越大越不透明  bf.BlendOp = AC_SRC_OVER;::AlphaBlend(dc->GetSafeHdc(), rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,cdc.GetSafeHdc(), src.left, src.top, src.right - src.left, src.bottom - src.top, bf);}cdc.SelectObject(pOldBitmap);}void MyButton::OnTimer(UINT_PTR nIDEvent){CRect rc;GetClientRect(&rc);CPoint pt;GetCursorPos(&pt);ScreenToClient(&pt);CDC *dc = GetDC();dc->SelectObject(GetStockObject(NULL_PEN));if (rc.PtInRect(pt)) //如果鼠标悬浮在按钮上，则画出一个矩形{if (bInBtn){CRect r = { rc.left + 1,rc.top + 1,rc.right - 1,rc.bottom - 1 };//由于画透明矩形时有1像素的边框，所以画的区域为按钮的区域-1DrawAlphaRect(r);bInBtn = FALSE;}}else{bInBtn = TRUE;CBrush brush;brush.CreateSolidBrush(RGB(240, 240, 240));//屏幕默认RGBdc->SelectObject(brush);dc->Rectangle(rc);CPen pen;pen.CreatePen(PS_SOLID, 2, RGB(160, 160, 160));dc->SelectObject(pen);if (type == 0){dc->MoveTo(rc.left+6, (rc.bottom - rc.top) / 3*2);dc->LineTo(rc.right-6, (rc.bottom - rc.top) /3*2);}else if (type == 1){dc->MoveTo(rc.left + 6, rc.top + 6);dc->LineTo(rc.right - 6, rc.bottom - 6);dc->MoveTo(rc.left + 6, rc.bottom - 6);dc->LineTo(rc.right - 6, rc.top + 6);}pen.DeleteObject();}ReleaseDC(dc);CButton::OnTimer(nIDEvent);}