Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
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Capturing keyboard activity of another application with the Raw Input API (VFP9)
How to register custom Event Log source
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Copying picture of the active form to the Clipboard using Enhanced Metafile API functions
Displaying icons in the system tray (VFP9)
Custom HttpRequest class (WinINet)
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)
Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
Storing content of the Clipboard to a bitmap file
Using Beep and Sleep functions to make the old tin buzz sing (WinNT only?)
Attaching menu to a top-level form
Enumerating data formats currently available on the clipboard
How to activate Windows Calculator
How to print a bitmap file
Storing screen shot of a form to bitmap file
Building a tree of subdirectories for a given path using FindFile functions
Drawing Windows predefined bitmaps using the LoadBitmap functions
Sending email messages with Simple MAPI
Retrieving the User Datagram Protocol (UDP) listener table
Minimizing all running applications
Using EnumPrinters function to enumerate locally installed printers
Retrieving the IP-to-physical address mapping table
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: 77  
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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Last Topics Visited (50.17.174.94)
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