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The BrowseVolumes class provides means to iterate through the volumes/drives mounted in the system.

使用 BrowseVolumes class always follows the same concept:

Allocate a BrowseVolumes instance.
Initializes the BrowseVolumes instance via BrowseVolumes::Init() .
Call BrowseVolumes::GetNext() at least once (but most likely in a loop) to get the first/next element (if any).
Use the below mentioned volume info functions on each element.

// This example demonstrates browsing volumes with BrowseVolumes.

AutoAlloc<BrowseVolumes> browseVolumes; if (browseVolumes == nullptr ) return maxon::OutOfMemoryError( MAXON_SOURCE_LOCATION );

browseVolumes-> Init (); ApplicationOutput ( "Available volumes:" _s); while (browseVolumes-> GetNext ()) // Note: GetNext() needs to be called at least once, to get the first element. { const Filename fn = browseVolumes-> GetFilename (); Int32 bvFlags = 0; const maxon::String volumeName = browseVolumes-> GetVolumeName (&bvFlags); if (bvFlags != BROWSEVOLUMES_VOLUME_NOT_AVAILABLE ) { UInt64 freecaller = 0, total = 0, freespace = 0; maxon::String freeText = "" _s; if ( GeFGetDiskFreeSpace (fn, freecaller, total, freespace)) { const maxon::String memoryFree = maxon::String::MemorySizeToString(freespace); const maxon::String memoryTotal = maxon::String::MemorySizeToString(total); const maxon::String memoryFreeForC4D = maxon::String::MemorySizeToString(freecaller); freeText = ": " _s + memoryFree + " of " _s + memoryTotal + " free, (" _s + memoryFreeForC4D + " available for C4D)" _s; } ApplicationOutput ( " @ (@)@" _s, maxon::String { fn. GetString () }, volumeName, freeText); } }