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GetDeviceList
GetDeviceList Provides a handle to the first gDevice in the DeviceList
#include <Quickdraw.h> Graphics Devices
GDHandle GetDeviceList( );
returns handle to gDevice record structure
GetDeviceList can be used to show which device is first on the Device list.
Returns: a GDHandle; a handle to the first gDevice.
Notes: A handle to the first item in the device list can be found in the
DeviceList global variable.
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