|Online Development Notebook > Index > Programming Overview > DLL Commands > CloseDevice|
CloseDevice - Close the open device
This is a USBm.dll function that closes access to a USB device.
true⁄false USBm_CloseDevice( device )
The USBm_CloseDevice function syntax has these parts:
|device||Valid device from 0 to the maximum number of devices found (minus 1). Any other number results in a FALSE return.|
Note: USBm_CloseDevice returns TRUE if the device successfully closes.
VB Declaration (USBmAPI.bas)
|Public Declare Function USBm_CloseDevice _|
Lib "USBm.dll" _
(ByVal device As Byte) _
|Dim result As Integer|
result = USBm_CloseDevice 3
This code fragment closes device number three. "Result" will contain TRUE or FALSE.
|int USBm_CloseDevice( unsigned char device );|
Returns true if the device was successfully closed. False otherwise.
Hardware: U401 USB Interface U421 USB Interface U451 USB Interface
Programming: USBm DLL Programming Download Files
Application Notes: U4x1 Application Notes Misc Applications and Information FAQ
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