cpi_keyboard.c

VC++视频开发实例集锦(包括“远程视频监控”"语音识别系统"等13个经典例子)

////////////////////////////////////////////////////////////////////////////////



#include "stdafx.h"
#include "globals.h"
#include "resource.h"
#include "CPI_Player.h"
#include "CPI_Playlist.h"
#include "CPI_PlaylistItem.h"


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//
//
//
void CP_HandleKeyPress_Playlist(HWND hWnd, const int iVKey, const BOOL bAlt, const BOOL bCtrl, const BOOL bShift)
{
    switch(iVKey)
    {
    case 'F':
        CPVERB_ToggleFindDialog(vaDoVerb, hWnd);
        return;
    case 'H':
        CPVERB_PlaylistShuffle(vaDoVerb, hWnd);
        return;
    case 'V':
        CPVERB_SavePlaylist(vaDoVerb, hWnd);
        return;
    case 'D':
        CPVERB_AddDirectory(vaDoVerb, hWnd);
        return;
    case VK_DELETE:
    case VK_BACK:
        if(bCtrl)
            CPVERB_PlaylistClearAll(vaDoVerb, hWnd);
        else
            CPVERB_PlaylistClearSelected(vaDoVerb, hWnd);
        return;
    case VK_UP:
        if(bAlt)
        {
            CPVERB_PlaylistOffsetUp(vaDoVerb, hWnd);
            return;
        }
        break;
    case VK_DOWN:
        if(bAlt)
        {
            CPVERB_PlaylistOffsetDown(vaDoVerb, hWnd);
            return;
        }
        break;
    case VK_ADD:
        if(bAlt)
        {
            CPVERB_PlaylistMaximise(vaDoVerb, hWnd);
            return;
        }
        break;
    case VK_SUBTRACT:
        if(bAlt)
        {
            CPVERB_PlaylistMinimise(vaDoVerb, hWnd);
            return;
        }
        break;
    }

    CP_HandleKeyPress_Player(hWnd, iVKey, bAlt, bCtrl, bShift);
}
//
//
//
void CP_HandleKeyPress_Player(HWND hWnd, const int iVKey, const BOOL bAlt, const BOOL bCtrl, const BOOL bShift)
{
    switch(iVKey)
    {
    case 'P':
        CPVERB_TogglePlaylistWindow(vaDoVerb, hWnd);
        break;
    case 'E':
    case 'Q':
        CPVERB_ToggleEqualiser(vaDoVerb, hWnd);
        break;
    case 'S':
        CPVERB_ToggleShuffle(vaDoVerb, hWnd);
        break;
    case 'R':
        CPVERB_ToggleRepeat(vaDoVerb, hWnd);
        break;
    case 'X':
    case VK_RETURN:
    case VK_NUMPAD5:
        CPVERB_Play(vaDoVerb, hWnd);
        break;
    case 'V':
    case VK_DECIMAL:
        CPVERB_Stop(vaDoVerb, hWnd);
        break;
    case 'C':
    case VK_PAUSE:
    case VK_NUMPAD0:
        CPVERB_Pause(vaDoVerb, hWnd);
        break;
    case 'B':
    case VK_NUMPAD6:
        CPVERB_NextTrack(vaDoVerb, hWnd);
        break;
    case 'Z':
    case VK_NUMPAD4:
        CPVERB_PrevTrack(vaDoVerb, hWnd);
        break;
    case VK_LEFT:
        if(bCtrl)
            CPVERB_PrevTrack(vaDoVerb, hWnd);
        else
            CPVERB_SkipBackwards(vaDoVerb, hWnd);
        break;
    case VK_RIGHT:
        if(bCtrl)
            CPVERB_NextTrack(vaDoVerb, hWnd);
        else
            CPVERB_SkipForwards(vaDoVerb, hWnd);
        break;
    case VK_ADD:
    case VK_NUMPAD8:
    case VK_UP:
        if(!bAlt)
            CPVERB_VolumeUp(vaDoVerb, hWnd);
        break;
    case VK_SUBTRACT:
    case VK_NUMPAD2:
    case VK_DOWN:
        if(!bAlt)
            CPVERB_VolumeDown(vaDoVerb, hWnd);
        break;

    case '0':
    case 'M':
    case VK_TAB:
        globals.m_iVolume=0;
        main_draw_vu_from_value(windows.wnd_main, VolumeSlider, globals.m_iVolume);
        CPI_Player__SetVolume(globals.m_hPlayer, globals.m_iVolume);
        break;

    case '1':
    case '2':
    case '3':
    case '4':
    case '5':
    case '6':
    case '7':
    case '8':
    case '9':
        globals.m_iVolume=10 + ((iVKey-'1') * 10);
        main_draw_vu_from_value(windows.wnd_main, VolumeSlider, globals.m_iVolume);
        CPI_Player__SetVolume(globals.m_hPlayer, globals.m_iVolume);
        break;

    case VK_F1:
        CPVERB_About(vaDoVerb, hWnd);
        break;
    case VK_F4:
        if(bAlt)
            CPVERB_Exit(vaDoVerb, hWnd);
        else if(bCtrl)
            CPVERB_TogglePlaylistWindow(vaDoVerb, hWnd);
        break;
    case VK_ESCAPE:
        CPVERB_Exit(vaDoVerb, hWnd);
        break;
    case 'L':
    case 'O':
        CPVERB_OpenFile(vaDoVerb, hWnd);
        break;
    case VK_DELETE:
        if(bShift)
        {
            CP_HPLAYLISTITEM hCurrent = CPL_GetActiveItem(globals.m_hPlaylist);
            CPVERB_Stop(vaDoVerb, hWnd);
            if(hCurrent)
            {
                const char *pcText = CPLI_GetPath(hCurrent);
                DeleteFile(pcText);
                CPL_RemoveItem(globals.m_hPlaylist, hCurrent);

            }
        }
        break;
    }
}
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