Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
How to change display settings: screen resolution, screen refresh rate
Capturing keyboard activity of another application with the Raw Input API (VFP9)
Converting Unicode data from the Clipboard to a character string using a given code page
Copying picture of the active form to the Clipboard using Enhanced Metafile API functions
Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
Enumerating data formats currently available on the clipboard
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
Disabling mouse and keyboard input for the main VFP window (with the app still running)
Storing content of the Clipboard to a bitmap file
Current keyboard type
Displaying icons in the system tray (VFP9)
Attaching menu to a top-level form
Custom HttpRequest class (WinINet)
Using Beep and Sleep functions to make the old tin buzz sing (WinNT only?)
How to activate Windows Calculator
Storing screen shot of a form to bitmap file
Using InternetSetFilePointer when resuming interrupted download from the Internet
Minimizing all running applications
How to print a bitmap file
Sending email messages with Simple MAPI
Drawing Windows predefined bitmaps using the LoadBitmap functions
Using Path functions from Shell Lightweight Utility APIs (shlapi.dll)
Obtaining current Internet Explorer browser version and UserAgent
Using EnumPrinters function to enumerate locally installed printers
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: 76  
    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 2001-2014 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 (54.226.168.96)
    4 sec.Example: 'Winsock: reading email messages (POP3, port 110)'
    7 sec.Function: 'ChooseFont'
    9 sec.Function: 'SHGetFolderLocation'
    12 sec.Example: 'Subclassing CommandButton control to create BackColor property'
    Google
    Advertise here!