csdn博客-mfc學(xué)習(xí)筆記lesson10繪圖控制

Lesson101{//TODO:Addyourmessagehandlercodehereand/orcalldefaultCClientDCdc(this);CPenpen(m_nLineStyle,m_nLineWidth,m_clr);CBrush*pBrush=CBrush::FromHandle((HBRUSH)GetStockObject(NULL_BRUSH));{casecasecase3:case}}d.Groupview中增m_nLineStylevoid{//TODO:AddyourcommandhandlercodehereCSettingDlgdlg;{}}添加一個顏色框DoModalvoid{//TODO:AddyourcommandhandlercodehereCColorDialogdlg;dlg.m_cc.Flags|=CC_RGBINIT|//m_ccCHOOSECOLOR結(jié)構(gòu)體類型變量{}}調(diào)用Invadate()void{//TODO:AddyourcommandhandlercodehereCFontDialogdlg;{//WindowsGraphicsDeviceInterface（Windows}}a.當(dāng)編輯控件內(nèi)容改變時，發(fā)出En_change消息；而Radio按鈕則為Clicked。需先voidCSettingDlg::OnChangeLineWidth() void void void void{CPaintDCdc(this);//devicecontextfor//TODO:Addyourmessagehandlercodehere CPenpen(m_nLineStyle,m_nLineWidth,m_clr);CRect //DonotcallCDialog::OnPaint()forpainting}每個控件被繪制時都發(fā)出WM_CTlColorHBRUSHCSettingDlg::OnCtlColor(CDC*pDC,CWnd*pWnd,UINT{HBRUSHhbr=CDialog::OnCtlColor(pDC,pWnd,//TODO:ChangeanyattributesoftheDChere{return}{pDC-returnm_brush;} {pDC-}{returnm_brush;//TODO:Returnadifferentbrushifthedefaultisnotdesiredreturnhbr;//return}如何改變OKOKc.將OKCTestBtnOKOwnerDraw特性選中。CancelCSXBtn中重寫了DrawItemCSXBtn該類需要自己手動修改OwnerDraw屬性。BtnST這個類不需要自己手動修改該屬性，類CBitmapbitmap;B、創(chuàng)建兼容DC

patibleDC(pDC);//創(chuàng)建一個與pDC兼容的內(nèi)存設(shè)備上下文,CDCDDC中的位圖貼到當(dāng)前DCWM_EraseBkgnd()中調(diào)用，但不能再調(diào)用基類 {//TODO:Addyourmessagehandlercodehereand/orcalldefaultCBitmapbitmap;BITMAP CRectrect;