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- Here is the DLL, DiskInfo.DLL. It contains one function, also called
- DiskInfo. The declaration is as follows:-
-
- Declare Function DiskInfo Lib "DiskInfo.DLL" (ByVal DriveNum%,
- ByVal DriveInfo%) As Long
-
- DriveNum% is the drive that you want the figures for: 0=Default
- Drive, 1=drive A, 2=B, 3=C etc.
-
- DriveInfo% is the information you want: 1 = Free Space, 2 = Total
- Space, 3 = Total Clusters, 4 = Available Clusters, 5 = Sectors per
- Cluster, 6 = Bytes per Sector.
-
- If you pass an incorrect DriveNum%, the function returns -1, if
- there is an error related to DriveInfo% it returns -2. Otherwise
- it returns either a number (of clusters/sectors) or a number of Bytes.
-
- **********
-
- I have added another two functions, to return the free system
- resources and the free memory.
-
- Declare Function GetFreeMem Lib "DiskInfo.DLL" () As Long
- ' returns the amount of free system memory in bytes
-
- Declare Function GetFreeRes Lib "DiskInfo.DLL" ( ByVal InfoType% )
- As Integer
- ' returns a number between 0-100, which is the percentage of free
- 'resources of the type specified in InfoType%. 0 = System Resources,
- '1 = GDI Resources, 2 = User Resources. It will return -1 if you
- 'specify an incorrect type.
-
- I have included a tiny VB app called DiskInf which very quickly
- demonstrates the three functions.
-
- Ian Taylor
- 100025,557