Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
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GDI+: Implementing image scrolling with inertia
Storing content of the Clipboard to a bitmap file
How to convert a bitmap file to monochrome format (1 bpp)
GetFileOwner - Get the owner of an NTFS file
Retrieving the name of the primary domain controller (PDC) and join status information
GDI+: custom Clock Control
Winsock: sending email messages (SMTP, port 25)
Using EnumPrinters function to enumerate locally installed printers
Copying picture of the active form to the Clipboard using Enhanced Metafile API functions
How to change the name and the size of the font in the MessageBox dialog
How to create MD-5 and SHA-1 hash values from a string
How to detect if additional monitor is connected and active
How to register custom Event Log source
Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
Mapping and disconnecting network drives
Class for sound recording

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Before you begin:
This class is able to record audio input from playback devices like Wave, Microphone etc. It implements methods
OpenDevice
CloseDevice
StartRecording
StopRecording
CreateWaveFile(cFilename)


Some parameters are hard-coded: max recording time, bits per sample, samples per second and channels. Though it is easy to make this basic class more flexible.

Click to open an example based on this class: WAV file recorder:

 
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10155 bytes  
Created: 2003-09-16 13:54:14  
Modified: 2013-09-20 13:29:00  
Visits in 7 days: 59  
Listed functions:
GlobalAlloc
GlobalFree
GlobalReAlloc
mmioAscend
mmioClose
mmioCreateChunk
mmioDescend
mmioFlush
mmioOpen
mmioWrite
waveInAddBuffer
waveInClose
waveInGetErrorText
waveInGetPosition
waveInOpen
waveInPrepareHeader
waveInReset
waveInStart
waveInStop
waveInUnprepareHeader
Printer friendly API declarations
My comment:
Yet another reason to wish threads and callback functions to be supported in VFP -- the waveInProc callback function can provide a smooth transition to the next memory block while the previous one being written to a file and released.
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