WTL实现播放器控制窗口

#include "StdAfx.h" #include ".\maindlg.h" LRESULT CMainDlg::OnBnClickedOk(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/) { // TODO: Add your control notification handler code here return 0; } LRESULT CMainDlg::OnEraseBackground(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled) { RECT rc = {0}; BITMAP bm = {0}; HBITMAP hBitmap = NULL; HGDIOBJ hOldBitmap = NULL; HDC dc = (HDC)wParam; HDC hMemDC = ::CreateCompatibleDC(dc); if( hMemDC == NULL ) return E_FAIL; hBitmap = ::LoadBitmap( _AtlBaseModule.GetResourceInstance(), MAKEINTRESOURCE(IDB_CMD_BK)); if( hBitmap == NULL ) { ::DeleteDC(hMemDC); return E_FAIL; } // ASSERT( hBitmap != NULL ); this->GetClientRect(&rc); hOldBitmap = ::SelectObject(hMemDC, hBitmap); ::GetObject(hBitmap, sizeof(bm), &bm); ::StretchBlt(dc, 0, 0, rc.right, rc.bottom, hMemDC, 0, 0, bm.bmWidth, bm.bmHeight, SRCCOPY); ::SelectObject(hMemDC, hOldBitmap); ::DeleteObject(hBitmap); ::DeleteDC(hMemDC); return S_OK; } LRESULT CMainDlg::OnSize(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& /*bHandled*/) { int cx = LOWORD(lParam); int cy = HIWORD(lParam); LONG lDistance = 0; LONG lBtnWidth = 30; LONG lBtnHeight = 18; long left = lBtnWidth/2; long top = 27; int iLetPos = 0; int iRightPos = 0; int iHightSecSlider = 0; if( ::IsWindow(m_cSliderVideo.m_hWnd) ) ::SetWindowPos(m_cSliderVideo.m_hWnd, NULL, lBtnWidth/3, 0, cx-2 * lBtnWidth/3, 22, SWP_SHOWWINDOW); if( ::IsWindow(m_cSliderAudio.m_hWnd) ) ::SetWindowPos(m_cSliderAudio.m_hWnd, NULL, cx - left - 60, 25 + iHightSecSlider, 67, 24, SWP_SHOWWINDOW); if( ::IsWindow(m_cSilence.m_hWnd) ) ::SetWindowPos(m_cSilence.m_hWnd, NULL, cx - left - 60 - 17, 30 + iHightSecSlider, 17, 14, SWP_SHOWWINDOW); if( ::IsWindow(m_cBtnPlay.m_hWnd) ) ::SetWindowPos(m_cBtnPlay.m_hWnd, NULL, left, top + iHightSecSlider, lBtnWidth, lBtnHeight, SWP_SHOWWINDOW); //left = left + lBtnWide + lDistance; //if( ::IsWindow(m_cBtnContinue.m_hWnd) ) // ::SetWindowPos(m_cBtnContinue.m_hWnd, NULL, left, top + iHightSecSlider, lBtnWidth, lBtnHeight, SWP_SHOWWINDOW); left = left + lBtnWidth + lDistance; if( ::IsWindow(m_cBtnPause.m_hWnd) ) ::SetWindowPos(m_cBtnPause.m_hWnd, NULL, left, top + iHightSecSlider, lBtnWidth, lBtnHeight, SWP_SHOWWINDOW); left = left + lBtnWidth + lDistance; if( ::IsWindow(m_cDownRate.m_hWnd) ) ::SetWindowPos(m_cDownRate.m_hWnd, NULL, left, top + iHightSecSlider, lBtnWidth, lBtnHeight, SWP_SHOWWINDOW); left = left + lBtnWidth + lDistance; if( ::IsWindow(m_cUpRate.m_hWnd) ) ::SetWindowPos(m_cUpRate.m_hWnd, NULL, left, top + iHightSecSlider, lBtnWidth, lBtnHeight, SWP_SHOWWINDOW); left = left + lBtnWidth + lDistance; if(::IsWindow(m_cBtnStop.m_hWnd)) ::SetWindowPos(m_cBtnStop.m_hWnd, NULL, left, top + iHightSecSlider, lBtnWidth, lBtnHeight, SWP_SHOWWINDOW); left = left + lBtnWidth + lDistance; if( ::IsWindow(m_cBtnRec.m_hWnd) ) ::SetWindowPos(m_cBtnRec.m_hWnd, NULL, left, top + iHightSecSlider, lBtnWidth, lBtnHeight, SWP_SHOWWINDOW); if( !::IsWindow(m_cBtnStop.m_hWnd) || !::IsWindow(m_cBtnPlay.m_hWnd) ) return S_OK; _ASSERT( ::IsWindow(m_cBtnStop.m_hWnd) && ::IsWindow(m_cBtnPlay.m_hWnd) ); } LRESULT CMainDlg::OnMsgSliderPos(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled) { // ASSERT( uMsg == WM_SLIDER_POS_MSG ); switch( wParam ) { case IDC_SLIDER_VIDEO: { //this->OnVideoSliderPos(lParam); break; } case IDC_SLIDER_AUDIO: { //this->OnAudioSliderPos(lParam); break; } default: /*-- do nothing --*/ break; } return S_OK; } LRESULT CMainDlg::OnTimer(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/) { hash_map<__int64,__int64> MapArea; if( m_iEndPos == 101 ) return S_OK; //在此可以画多个区域，当在网络播放器上用时要显示下载的进度，这里就可根据下载的情况进行下载的区域填充。如果是播放器进行了SEEK操作， //那么就可能会出现多个不连续的数据块，此时可能根据已有下载数据进行分区域填充，以示当前下载的情况 //MapArea[ 区域开始 ] = 区域结束位置; m_cSliderVideo.SetPos(m_iEndPos); MapArea[ 0 ] = m_iEndPos++; m_cSliderVideo.DrawChannelBarBack( MapArea, 100 ); return S_OK; } LRESULT CMainDlg::OnBnClickedBtnPlay(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled) { //MessageBox("开始播放了！"); SetTimer(1,1000,NULL); m_cBtnPlay.EnableWindow(FALSE); m_cBtnPause.EnableWindow(); m_cBtnStop.EnableWindow(); m_cBtnRec.EnableWindow(); return S_OK; } LRESULT CMainDlg::OnBnClickedBtnStop(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled) { KillTimer(1); m_cBtnPlay.EnableWindow(TRUE); m_cBtnPause.EnableWindow(FALSE); m_cBtnStop.EnableWindow(FALSE); m_cBtnRec.EnableWindow(FALSE); m_cSliderVideo.Reset(); m_iEndPos = 0; return S_OK; }