mp3播放器程序設(shè)計(jì)說(shuō)明書(shū)(編輯修改稿)
2025-06-09 18:51 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 滑塊的移動(dòng)范圍0~1000(500)。//滑塊指針的初始位置設(shè)為500代表初始音量為50GetDlgItem(IDC_play)EnableWindow(false)。//文件沒(méi)有讀取時(shí)所有按鈕應(yīng)該是不可選的GetDlgItem(IDC_pause)EnableWindow(false)。GetDlgItem(IDC_stop)EnableWindow(false)。//TODO:AddextrainitializationherereturnTRUE。//returnTRUEunlessyousetthefocustoacontrol}voidCMP3Dlg::OnSysCommand(UINTnID,LPARAMlParam){if((nIDamp。0xFFF0)==IDM_ABOUTBOX){CAboutDlgdlgAbout。()。}else{CDialog::OnSysCommand(nID,lParam)。}}//Ifyouaddaminimizebuttontoyourdialog,youwillneedthecodebelow//todrawtheicon.ForMFCapplicationsusingthedocumentiewmodel,//thisisautomaticallydoneforyoubytheframework.voidCMP3Dlg::OnPaint(){if(IsIconic()){CPaintDCdc(this)。//devicecontextforpaintingSendMessage(WM_ICONERASEBKGND,(WPARAM)(),0)。//CentericoninclientrectangleintcxIcon=GetSystemMetrics(SM_CXICON)。intcyIcon=GetSystemMetrics(SM_CYICON)。CRectrect。GetClientRect(amp。rect)。intx=(()cxIcon+1)/2。inty=(()cyIcon+1)/2。//Drawtheicon(x,y,m_hIcon)。}else{CDialog::OnPaint()。}}//Thesystemcallsthistoobtainthecursortodisplaywhiletheuserdrags//theminimizedwindow.HCURSORCMP3Dlg::OnQueryDragIcon(){return(HCURSOR)m_hIcon。}voidCMP3Dlg::Onabout(){//TODO:AddyourcontrolnotificationhandlercodehereCAboutDlgdlg。()。}voidCMP3Dlg::Onexitbt(){//TODO:AddyourcontrolnotificationhandlercodehereCDialog::OnCancel()。}voidCMP3Dlg::OnCustomdrawSlider(NMHDR*pNMHDR,LRESULT*pResult){//TODO:AddyourcontrolnotificationhandlercodehereUpdateData(true)。m_int=()/10。setvolume(())。UpdateData(false)。*pResult=0。}voidCMP3Dlg::Onfilechoice(){//TODO:AddyourcontrolnotificationhandlercodeherecharszFileFilter[]=mp3文件(*.mp3)|*.mp3|16
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