reactos/dll/cpl/mmsys/volume.c

   1 /* $Id: main.c 12852 2005-01-06 13:58:04Z mf $
   2  *
   3  * PROJECT:         ReactOS Multimedia Control Panel
   4  * FILE:            lib/cpl/mmsys/mmsys.c
   5  * PURPOSE:         ReactOS Multimedia Control Panel
   6  * PROGRAMMER:      Thomas Weidenmueller <w3seek@reactos.com>
   7  *                  Johannes Anderwald <janderwald@reactos.com>
   8  */
   9
  10 #include <windows.h>
  11 #include <commctrl.h>
  12 #include <setupapi.h>
  13 #include <cpl.h>
  14 #include <tchar.h>
  15 #include <stdio.h>
  16 #include "mmsys.h"
  17 #include "resource.h"
  18
  19 typedef struct _IMGINFO
  20 {
  21     HBITMAP hBitmap;
  22     INT cxSource;
  23     INT cySource;
  24 } IMGINFO, *PIMGINFO;
  25
  26
  27 static VOID
  28 InitImageInfo(PIMGINFO ImgInfo)
  29 {
  30     BITMAP bitmap;
  31
  32     ZeroMemory(ImgInfo, sizeof(*ImgInfo));
  33
  34     ImgInfo->hBitmap = LoadImage(hApplet,
  35                                  MAKEINTRESOURCE(IDB_SPEAKIMG),
  36                                  IMAGE_BITMAP,
  37                                  0,
  38                                  0,
  39                                  LR_DEFAULTCOLOR);
  40
  41     if (ImgInfo->hBitmap != NULL)
  42     {
  43         GetObject(ImgInfo->hBitmap, sizeof(BITMAP), &bitmap);
  44
  45         ImgInfo->cxSource = bitmap.bmWidth;
  46         ImgInfo->cySource = bitmap.bmHeight;
  47     }
  48 }
  49
  50 void
  51 InitVolumeControls(HWND hwndDlg)
  52 {
  53     UINT NumWavOut;
  54     WAVEOUTCAPS woc;
  55     MMRESULT errcode;
  56     DWORD dwDeviceID;
  57     DWORD dwStatus;
  58
  59     NumWavOut = waveOutGetNumDevs();
  60     if (!NumWavOut)
  61     {
  62         //FIXME
  63         // deactivate all controls
  64         return;
  65     }
  66
  67     errcode = waveOutMessage((HWAVEOUT)WAVE_MAPPER, DRVM_MAPPER_PREFERRED_GET, (DWORD_PTR)&dwDeviceID, (DWORD_PTR)&dwStatus);
  68     if (errcode != MMSYSERR_NOERROR)
  69     {
  70         MessageBox(hwndDlg, _T("Failed to enumerate default device"), NULL, MB_OK);
  71         return;
  72     }
  73
  74     if (waveOutGetDevCaps(dwDeviceID, &woc, sizeof(WAVEOUTCAPS)) != MMSYSERR_NOERROR)
  75     {
  76         MessageBox(hwndDlg, _T("waveOutGetDevCaps failed"), NULL, MB_OK);
  77         return;
  78     }
  79
  80     SendDlgItemMessage(hwndDlg, IDC_DEVICE_NAME, WM_SETTEXT, (WPARAM)0, (LPARAM)woc.szPname);
  81
  82     if (!(woc.dwSupport & WAVECAPS_VOLUME))
  83     {
  84         /// the device does not support volume changes
  85         /// disable volume control
  86         EnableWindow(GetDlgItem(hwndDlg, IDC_VOLUME_TRACKBAR), FALSE);
  87     }
  88     else
  89     {
  90         SendDlgItemMessage(hwndDlg, IDC_VOLUME_TRACKBAR, TBM_SETRANGE, (WPARAM)TRUE, (LPARAM)MAKELONG(0, 10));
  91         SendDlgItemMessage(hwndDlg, IDC_VOLUME_TRACKBAR, TBM_SETPAGESIZE, (WPARAM)FALSE, (LPARAM)1);
  92         SendDlgItemMessage(hwndDlg, IDC_VOLUME_TRACKBAR, TBM_SETSEL, (WPARAM)FALSE, (LPARAM)MAKELONG(0, 10));
  93         SendDlgItemMessage(hwndDlg, IDC_VOLUME_TRACKBAR, TBM_SETPOS, (WPARAM)TRUE, (LPARAM)4);
  94     }
  95 }
  96
  97 /* Volume property page dialog callback */
  98 //static INT_PTR CALLBACK
  99 INT_PTR CALLBACK
 100 VolumeDlgProc(HWND hwndDlg,
 101                 UINT uMsg,
 102                 WPARAM wParam,
 103                 LPARAM lParam)
 104 {
 105     static IMGINFO ImgInfo;
 106     UNREFERENCED_PARAMETER(lParam);
 107     UNREFERENCED_PARAMETER(wParam);
 108
 109     switch(uMsg)
 110     {
 111         case WM_INITDIALOG:
 112         {
 113             InitImageInfo(&ImgInfo);
 114             InitVolumeControls(hwndDlg);
 115             break;
 116         }
 117         case WM_DRAWITEM:
 118         {
 119             LPDRAWITEMSTRUCT lpDrawItem;
 120             lpDrawItem = (LPDRAWITEMSTRUCT) lParam;
 121             if(lpDrawItem->CtlID == IDC_SPEAKIMG)
 122             {
 123                 HDC hdcMem;
 124                 LONG left;
 125
 126                 /* position image in centre of dialog */
 127                 left = (lpDrawItem->rcItem.right - ImgInfo.cxSource) / 2;
 128
 129                 hdcMem = CreateCompatibleDC(lpDrawItem->hDC);
 130                 if (hdcMem != NULL)
 131                 {
 132                     SelectObject(hdcMem, ImgInfo.hBitmap);
 133                     BitBlt(lpDrawItem->hDC,
 134                            left,
 135                            lpDrawItem->rcItem.top,
 136                            lpDrawItem->rcItem.right - lpDrawItem->rcItem.left,
 137                            lpDrawItem->rcItem.bottom - lpDrawItem->rcItem.top,
 138                            hdcMem,
 139                            0,
 140                            0,
 141                            SRCCOPY);
 142                     DeleteDC(hdcMem);
 143                 }
 144             }
 145             return TRUE;
 146         }
 147     }
 148
 149     return FALSE;
 150 }