Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
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How to print FoxPro form
Obtaining current Internet Explorer browser version and UserAgent
Enumerating data formats currently available on the clipboard
Custom GDI+ class
Creating a clipping region from the path selected into the device context of a form
Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
Storing content of the Clipboard to a bitmap file
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Using EnumPrinters function to enumerate locally installed printers
Enumerating Processes -- WinNT
A procedure for setting file times
Storing screen shot of a form to bitmap file
Retrieving the name of the primary domain controller (PDC) and join status information
Using FrameRgn for displaying system colors
Using the DeleteFile
Using the Semaphore object to allow only one instance of VFP application running
Placing a button on the VFP form as a new child window
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: 155  
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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