Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
Custom GDI+ class
Using Video Capture: displaying on FoxPro form frames and previewing video obtained from a digital camera
Obtaining names and positions for shortcuts located on the Windows Desktop
How to change display settings: screen resolution, screen refresh rate
Enumerating devices installed on the local machine
Class for sound recording
Winsock: sending email messages (SMTP, port 25)
Monitoring clipboard content changes (VFP9)
Vertical Label control
How to convert a bitmap file to monochrome format (1 bpp)
Custom HttpRequest class (WinHTTP)
How to make a VFP form fading out when released (GDI version)
Custom FTP Class for Visual FoxPro application
How to print a bitmap file
How to put a horizontal text scrolling on the form (a news line, marquee)
Creating irregularly shaped FoxPro form using transparency color key
Passing data records between VFP applications via the Clipboard
Browsing Windows Known Folders (Special Folders)
How to print FoxPro form
How to copy the image of a form to the Clipboard using Bitmap API functions
Adding and deleting User Accounts
Storing screen shot of a form to bitmap file
How to set Creation Date/Time for a folder (WinNT)
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: 14  
    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 2001-2015 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 (5.1.68), the Open Source standard SQL database, AceHTML Freeware Version 4, freeware HTML Editor of choice.   Hosted by Korax Online Inc.
    Last Topics Visited (54.82.135.191)
    1.78 min.Function: 'waveInGetErrorText'
    Function group: 'Windows Multimedia'
    12.32 min.Function: 'ConfigurePort'
    10.06 hrs.Function: 'mmioAscend'
    Function group: 'Windows Multimedia'
    10.08 hrs.Function: 'NetScheduleJobEnum'
    Function group: 'Network Management'
    10.11 hrs.Function: 'GetTickCount'
    10.29 hrs.Function: 'TextOut'
    2 day(s)
    Function group: 'Window Station and Desktop'
    4 day(s)Example: 'GDI+: Scrolling through large image using the mouse'
     Function: 'CeCopyFile'
    Function group: 'Remote Application Programming (RAPI)'
     Example: 'Testing serial ports'
    Google
    Advertise here!