Dlg類添加如下的兩個(gè)自定義函數(shù)InvalidateMyRemBkColor,TRUE);mIsPressed=FALSDlg類添加如下的兩個(gè)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(guān)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(shí)線單選按鈕虛線單選按鈕線條粗細(xì)下拉列表IDC_STATIC_LINEEXAMPLE顯示線條粗細(xì)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?qū)?，按圖-7所示，為相關(guān)控件添加關(guān)聯(lián)成員：..添加按鈕單擊消息，響應(yīng)函數(shù)如下：voidCDrawGraphChecked(IDCRADIOLINE))//如果選擇了直添加按鈕單擊消息，響應(yīng)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I(xiàn)nvalid}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(shí)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(guān)控件添加關(guān)聯(lián)成員：);for(inti=0;i<9;i++)mComboLin"5px","6px","8px","10px","12pxIsDlgButtonChecked(IDCRADIOSEL關(guān)控件添加關(guān)聯(lián)成員：.cb=(CButton*)GetDlg}11、為背景色、前景色、無填充、實(shí)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(dāng)前點(diǎn)設(shè)置為舊點(diǎn)//繪制軌跡mpOld=point;//將當(dāng)前點(diǎn)設(shè)置為舊點(diǎn)}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(shí)線dc.SetROP2(R2C{HBRUSHbr;//創(chuàng)建畫刷句柄{刷顏色HBRUSH}}2、選擇顏色對(duì)話框以與清空畫圖板功能：2、選擇顏色對(duì)話框以與清空畫圖板功能：ltif(mIsPressed&&point.x>205)/L