Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Custom GDI+ class
How to change display settings: screen resolution, screen refresh rate
Obtaining names and positions for shortcuts located on the Windows Desktop
GDI+: Implementing image scrolling with inertia
Extensible Storage Engine class library
Displaying dimmed window behind VFP top-level form
Winsock: connecting to a news server (NNTP, port 119)
Winsock: sending email messages (SMTP, port 25)
Printing Image File, programmatically set print page orientation to landscape
How to make a VFP form fading out when released (GDI version)
Custom HttpRequest class (WinHTTP)
Enumerating devices installed on the local machine
Displaying icons in the system tray (VFP9)
Splash Screen for the VFP application
Winsock: reading email messages (POP3, port 110)
Subclassing CommandButton control to create BackColor property
Disconnecting USB Mass Storage Device programmatically
Browsing Windows Known Folders (Special Folders)
How to load a user profile
WAV file player
How to create non-blocking Winsock server
Vertical Label control
Capturing keyboard activity of another application with the Raw Input API (VFP9)
Moving shortcut to a specified position on the Windows Desktop
Enumerating MIDI output devices

User rating: 0/10 (0 votes)
Rate this code sample:
  • ~
More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
Before you begin:
See also:
  • How to play MIDI notes
  • DO declare
    
    LOCAL nCount, nIndex, nBufsize, cBuffer
    
    nCount = midiOutGetNumDevs()
    FOR nIndex=0 TO nCount-1
        nBufsize = 1024
        cBuffer = REPLICATE(CHR(0), nBufsize)
    
        IF midiOutGetDevCaps(nIndex, @cBuffer, nBufsize) = 0
            LOCAL oMidiOutCaps As MIDIOUTCAPS
            oMidiOutCaps = CREATEOBJECT("MIDIOUTCAPS", cBuffer)
            ? oMidiOutCaps.szPname
        ENDIF
    NEXT
    * end of main
    
    PROCEDURE declare
        DECLARE INTEGER midiOutGetNumDevs IN Winmm
    
        DECLARE INTEGER midiOutOpen IN Winmm;
            INTEGER @lphmo, INTEGER uDeviceID, INTEGER dwCallback,;
            INTEGER dwCallbackInstance, INTEGER dwFlags
    
        DECLARE INTEGER midiOutClose IN Winmm INTEGER hmo  
    
        DECLARE INTEGER midiOutGetDevCaps IN Winmm;
            INTEGER uDeviceID, STRING @lpMidiOutCaps,;
            INTEGER cbMidiOutCaps
    
    DEFINE CLASS MIDIOUTCAPS As Session
    #DEFINE MAXPNAMELEN 32
        wMid=0
        wPid=0
        vDriverVersion=0
        szPname=""
        wTechnology=0
        wVoices=0
        wNotes=0
        wChannelMask=0
        dwSupport=0
    
    PROCEDURE Init(cBuffer)
        THIS.wMid = buf2word(SUBSTR(cBuffer, 1, 2))
        THIS.wPid = buf2word(SUBSTR(cBuffer, 3, 2))
        THIS.vDriverVersion = buf2dword(SUBSTR(cBuffer, 5, 4))
    
        THIS.szPname = SUBSTR(cBuffer, 9, MAXPNAMELEN) + CHR(0)
        THIS.szPname = SUBSTR(THIS.szPname, 1, AT(CHR(0),THIS.szPname)-1)
    
        THIS.wTechnology = buf2word(SUBSTR(cBuffer, MAXPNAMELEN+9, 2))
        THIS.wVoices = buf2word(SUBSTR(cBuffer, MAXPNAMELEN+11, 2))
        THIS.wNotes = buf2word(SUBSTR(cBuffer, MAXPNAMELEN+13, 2))
        THIS.wChannelMask = buf2word(SUBSTR(cBuffer, MAXPNAMELEN+15, 2))
        THIS.dwSupport = buf2dword(SUBSTR(cBuffer, MAXPNAMELEN+17, 4))
    
    ENDDEFINE
    
    FUNCTION buf2dword(cBuffer)
    RETURN Asc(SUBSTR(cBuffer, 1,1)) + ;
        BitLShift(Asc(SUBSTR(cBuffer, 2,1)),  8) +;
        BitLShift(Asc(SUBSTR(cBuffer, 3,1)), 16) +;
        BitLShift(Asc(SUBSTR(cBuffer, 4,1)), 24)
    
    FUNCTION buf2word(lcBuffer)
    RETURN Asc(SUBSTR(lcBuffer, 1,1)) + ;
           Asc(SUBSTR(lcBuffer, 2,1)) * 256
    
    
    

    User rating: 0/10 (0 votes)
    Rate this code sample:
    • ~
    1903 bytes  
    Created: 2006-03-02 09:02:20  
    Modified: 2008-04-10 08:04:40  
    Visits in 7 days: 54  
    Listed functions:
    midiOutClose
    midiOutGetDevCaps
    midiOutGetNumDevs
    midiOutOpen
    Printer friendly API declarations
    Word Index links for this example:
    Translate this page:
      Spanish    Portuguese    German    French    Italian  
    FreeTranslation.com offers instant, free translations of text or web pages.
    User Contributed Notes:
    There are no notes on this subject.


    Copyright 2001-2017 News2News, Inc. Before reproducing or distributing any data from this site please ask for an approval from its owner. Unless otherwise specified, this page is for your personal and non-commercial use. The information on this page is presented AS IS, meaning that you may use it at your own risk. Microsoft Visual FoxPro and Windows are trade marks of Microsoft Corp. All other trademarks are the property of their respective owners. 

    Privacy policy
    Credits: PHP (4.4.9), an HTML-embedded scripting language, MySQL (5.6.37), the Open Source standard SQL database, AceHTML Freeware Version 4, freeware HTML Editor of choice.   Hosted by Korax Online Inc.
    Last Topics Visited (54.162.255.186)
    5 sec.Function: 'FillRect'
    8 sec.Example: 'Displaying bitmap using the AlphaBlend function'
    13 sec.Function: 'GetIconInfo'
    18 sec.Function: 'GetMonitorContrast'
    22 sec.Example: 'How to activate Windows Calculator'
    28 sec.Function: 'mmioRead'
    Function group: 'Windows Multimedia'
    33 sec.Function: 'SearchPath'
    Function group: 'File Management'
    37 sec.Example: 'How to create non-blocking Winsock server'
    Language: 'C++'
    43 sec.Function: 'WNetGetProviderName'
    Function group: 'Windows Networking'
    47 sec.Example: 'Subclassing CommandButton control to create BackColor property'
    Google
    Advertise here!