用c++制作的播放器的课程设计报告(4)

2019-01-19 15:38

简单音乐播放器

参考文献

[1]姬涛、周启生，《计算机程序设计基础（上册）》[Z]，北京：中国传媒大学出版社，2010 [2]谭浩强，《C程序设计教程》[Z]，北京：清华大学出版社，2007 [3]任哲，《MFC Windows应用程序设计（第二版）》[Z]，北京：清华大学出版社，2007

简单音乐播放器

附录

void CPlayerDlg::OnAhand() {

// TODO: Add your control notification handler code here isPause=true;

MCI_STATUS_PARMS mciStatusParms; MCI_PLAY_PARMS mciPlayParms;

mciStatusParms.dwItem=MCI_STATUS_POSITION;

mciSendCommand(m_wDeviceID,MCI_STATUS,MCI_STATUS_ITEM,(DWORD)(LPVOID)&mciStatusParms);

dCurrentPosition=mciStatusParms.dwReturn;

if((m_dLength-dCurrentPosition)<=(m_dLength/16)) {

mciSendCommand(m_wDeviceID,MCI_SEEK,MCI_SEEK_TO_END,NULL);

mciSendCommand(m_wDeviceID,MCI_PLAY,0,(DWORD)(LPVOID)&mciPlayParms); } else {

mciPlayParms.dwFrom=dCurrentPosition+(DWORD)(m_dLength/16);

mciSendCommand(m_wDeviceID,MCI_PLAY,MCI_FROM,(DWORD)(LPVOID)&mciPlayParms); } }

void CPlayerDlg::OnPause() {

// TODO: Add your control notification handler code here if(isPause) {

CString strshow;

strshow=\当前歌曲:\状态：暂停\ this->SetWindowText(strshow);

GetDlgItem(IDC_PAUSE)->SetWindowText(\暂停\ isPause=FALSE;

MCI_GENERIC_PARMS mciPause;

mciSendCommand(m_wDeviceID,MCI_PAUSE,0,(DWORD)(LPVOID)&mciPause); }

简单音乐播放器

else {

CString strshow;

strshow=\当前歌曲：\状态：播放\ this->SetWindowText(strshow);

GetDlgItem(IDC_PAUSE)->SetWindowText(\播放\ isPause=TRUE;

if(strFileExt==\{

MCI_STATUS_PARMS mciStatusParms; MCI_PLAY_PARMS mciPlayParms;

mciStatusParms.dwItem=MCI_STATUS_POSITION;

mciSendCommand(m_wDeviceID,MCI_STATUS,MCI_STATUS_ITEM,(DWORD)(LPVOID)&mciStatusParms); } else {

MCI_GENERIC_PARMS mciResume;

mciSendCommand(m_wDeviceID,MCI_RESUME,0,(DWORD)(LPVOID)&mciResume); } } }

void CPlayerDlg::OnPlay() {

// TODO: Add your control notification handler code here CString strshow;

strshow=\当前歌曲：\\状态：播放\ this->SetWindowText(strshow); isPause=true;

SetTimer(1,33,NULL);

mciSendCommand(m_wDeviceID,MCI_CLOSE,0,NULL); MCI_OPEN_PARMS mciOpen; MCI_PLAY_PARMS mciPlay;

mciOpen.lpstrElementName=strFileName.GetBuffer(strFileName.GetLength());

mciSendCommand(NULL,MCI_OPEN,MCI_OPEN_ELEMENT,(DWORD)(LPVOID)&mciOpen);

m_wDeviceID=mciOpen.wDeviceID; MCI_STATUS_PARMS mciStatusParms;

mciStatusParms.dwItem=MCI_STATUS_LENGTH;

mciSendCommand(m_wDeviceID,MCI_STATUS,MCI_WAIT|MCI_STATUS_ITEM,(D

简单音乐播放器

WORD)(LPVOID)&mciStatusParms);

m_dLength=mciStatusParms.dwReturn;

mciSendCommand(m_wDeviceID,MCI_PLAY,0,(DWORD)(LPVOID)&mciPlay); m_position.SetRange(0,m_dLength); m_position.SetPos(0); }

void CPlayerDlg::OnNext() {

// TODO: Add your control notification handler code here currentcursel++;

if(currentcursel==m_playlist.GetCount()) {

currentcursel=0; } else

m_playlist.GetText(currentcursel,strFileName); m_playlist.SetFocus();

m_playlist.SetCurSel(currentcursel); OnPlay(); }

void CPlayerDlg::OnBack() {

// TODO: Add your control notification handler code here isPause=true;

MCI_STATUS_PARMS mciStatusParms; MCI_PLAY_PARMS mciPlayParms;

mciStatusParms.dwItem=MCI_STATUS_POSITION;

mciSendCommand(m_wDeviceID,MCI_STATUS,MCI_STATUS_ITEM,(DWORD)(LPVOID)&mciStatusParms);

dCurrentPosition=mciStatusParms.dwReturn; if(dCurrentPosition<=(m_dLength/16)) {

mciSendCommand(m_wDeviceID,MCI_SEEK,MCI_SEEK_TO_START,NULL);

mciSendCommand(m_wDeviceID,MCI_PLAY,0,(DWORD)(LPVOID)&mciStatusParms); } else {

mciPlayParms.dwFrom=dCurrentPosition-(DWORD)(m_dLength/16);

mciSendCommand(m_wDeviceID,MCI_PLAY,MCI_FROM,(DWORD)(LPVOID)&mciP

简单音乐播放器

layParms); } }

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