Dlg類添加如下的兩個自定義函數(shù)InvalidateMyRemBkColor,TRUE);mIsPressed=FALSDlg類添加如下的兩個自定義函數(shù)InvalidateMyRemBkColor,TRUE);mIsPressed=FALSint;}elseif(IsDlgButtonCheckedGraphicsDlg:OnRadioSloidline()or,TRUE);InvalidateMyRect();}}ButtonChecked(IDCRADIOROUND)){IOLINE))//選擇的為畫直線or,TRUE);InvalidateMyRect();}}ButtonChecked(IDCRADIOROUND)){IOLINE))//選擇的為畫直線{dc.SetROP2(Rtstart=0;start<=step;start++)/COLORREFCDCdc;dc.SetBkMode(TRANSPARENT);{擇了矩形{dc.SetROP2(R2NOT);CPenpen(IDCRADIOSOLID);cb->SetCheck(1eck(1);cb=(CButton*)GetDlgItemht,rect.bottom),DTCENTER|DTVCE擇了矩形{dc.SetROP2(R2NOT);CPenpen(IDCRADIOSOLID);cb->SetCheck(1eck(1);cb=(CButton*)GetDlgItemht,rect.bottom),DTCENTER|DTVCE.bottom=500;invaRect.left=0;invOP2(R2NOT);CRectOldrect(mPointp,br);//用新顏色填充矩形區(qū)bottom=500;invaRect.left=0;invOP2(R2NOT);CRectOldrect(mPointp,br);//用新顏色填充矩形區(qū)::SelectObjecR);cb->SetCheck(1);}}voidCDraw{{}}{{}}}{}WM_LBUTTONDOWN和WM_LBUTTONUP),Nowrect,mForeColor,mBkColor,Origin,mpOld);dc.Rectangle(&OlnChecked(IDCRADIORECT))//選擇的為畫nstRECT&rect,COLORREFbegin,COL{),Nowrect,mForeColor,mBkColor,Origin,mpOld);dc.Rectangle(&OlnChecked(IDCRADIORECT))//選擇的為畫nstRECT&rect,COLORREFbegin,COL{}{}關ID；IDC_RADIO_RECTIDC_RADIO_ROUNDIDC_RADIO_LINEIDC_RADIO_SELFIDC_RADIO_SLOIDLINEIDC_RADIO_DOTTEDLINEIDC_COMBO_LINEVALUE矩形單選按鈕圓形單選按鈕直線單選按鈕涂鴉單選按鈕實線單選按鈕虛線單選按鈕線條粗細下拉列表IDC_STATIC_LINEEXAMPLE顯示線條粗細的Picture控件..MoveTo(mPointOrigin);dc.LineT);cb=(CButton*)GetDlgItem(IDCRficationhandlercodehereif(!IsD;CPenpen(mnPenStyle,mnWidth,mFIDC_CHECK_BORDERIDC_RADIO_SOLIDIDC_RADIO_GRADIENTIDC_RADIO_NULL.MoveTo(mPointOrigin);dc.LineT);cb=(CButton*)GetDlgItem(IDCRficationhandlercodehereif(!IsD;CPenpen(mnPenStyle,mnWidth,mFIDC_CHECK_BORDERIDC_RADIO_SOLIDIDC_RADIO_GRADIENTIDC_RADIO_NULLIDC_BUTTON_FORECOLORIDC_BUTTON_BKCOLORIDC_RADIO_PENIDC_RADIO_CLEARIDC_STATIC_GRAPHICS表-1{9、打開類向導，按圖-7所示，為相關控件添加關聯(lián)成員：..添加按鈕單擊消息，響應函數(shù)如下：voidCDrawGraphChecked(IDCRADIOLINE))//如果選擇了直添加按鈕單擊消息，響應函數(shù)如下：voidCDrawGraphChecked(IDCRADIOLINE))//如果選擇了直);if(IsDlgButtonChecked(IDCRADColor,TRUE);//更改背景色按鈕顏色Invalid}WM_LBUTTONDOWN和WM_LBUTTONUP，WM_MOUSEMOVE{{}{drect);//清除之前的矩形繪圖dc.SetROP2(RLLBRUSH));CRectNowrect(mPointOdrect);//清除之前的矩形繪圖dc.SetROP2(RLLBRUSH));CRectNowrect(mPointOdc.Ellipse(&Oldrect);dc.SetROP{{}}{{}{oint;pen.DeleteObject();}CDialRADIONULL))//既不能無邊框也不能無填充{CButoint;pen.DeleteObject();}CDialRADIONULL))//既不能無邊框也不能無填充{CButo(point);//繪制這一次的臨時線mpOld=poinmboLineValue.SetCurSel(3);mnWidc.SetROP2(R2_COPYPEN);變函數(shù){dc.SetROP2(R2_COPYPEN);數(shù)}}{t(pDmBkColor,TRUE);mIsPressed=FALS2(R2COPYPEN);CBrushbrush(mBkCo,mpOld);dc.Ellipse(&Oldrect);Ct(pDmBkColor,TRUE);mIsPressed=FALS2(R2COPYPEN);CBrushbrush(mBkCo,mpOld);dc.Ellipse(&Oldrect);C{}{}{}{{);for(inti=0;i<9;i++)mComboLin"5px","6px","8px","10px","12pxIsDlgButtonChecked(IDCRADIOSEL關控件添加關聯(lián)成員：);for(inti=0;i<9;i++)mComboLin"5px","6px","8px","10px","12pxIsDlgButtonChecked(IDCRADIOSEL關控件添加關聯(lián)成員：.cb=(CButton*)GetDlg}11、為背景色、前景色、無填充、實線、虛線、邊框、清空畫板按鈕添加按鈕單擊消息，響{{}}{{}}{handlercodehereand/orcalldefauADIONULL))//如果選擇無填充的話，使用空畫刷dc.handlercodehereand/orcalldefauADIONULL))//如果選擇無填充的話，使用空畫刷dc.awGraphicsDlg:OnRadioSloidline2COPYPEN);CBrushbrush(mBkColor{}}{}{}{{m_nPenStyle=PS_NULL;//繪制軌跡mpOld=point;//將當前點設置為舊點//繪制軌跡mpOld=point;//將當前點設置為舊點}h=4;mnPenStyle=PSSOLID;InvalidoLineValue.SetCurSel(3);mnWidtags,point);}voidCDrawGraphicsD{}}}{}12、為選擇畫筆寬度的下拉列表添加CBN_SELCHAGE消息，消息處理函數(shù)如下：{}{}ADIOPEN);cb->SetCheck(1);mComb;}CDialog::OnLButtonDown(nFlagLLBRUSH));CRectNowrect(mPointOOld);//ADIOPEN);cb->SetCheck(1);mComb;}CDialog::OnLButtonDown(nFlagLLBRUSH));CRectNowrect(mPointOOld);//擦去上一次的臨時線dc.SetROP2(R2C{HBRUSHbr;//創(chuàng)建畫刷句柄{刷顏色HBRUSH}}2、選擇顏色對話框以與清空畫圖板功能：2、選擇顏色對話框以與清空畫圖板功能：ltif(mIsPressed&&point.x>205)/L