| LZCopy The LZCopy function copies a source file to a destination file. If the source file is compressed with the Microsoft File Compression Utility (COMPRESS.EXE), this function creates a decompressed destination file. VB4-32,5,6
Declare Function LZCopy Lib "lz32.dll" Alias "LZCopy" (ByVal hfSource As Long, ByVal hfDest As Long) As Long |
| Operating Systems Supported |
| Requires Windows NT 3.1 or later; Requires Windows 95 or later |
· hfSource
Identifies the source file.
· hfDest
Identifies the destination file. |
If the function succeeds, the return value specifies the size, in bytes, of the destination file.
If the function fails, the return value is an LZERROR_* code. These codes have values less than zero. Note that LZCopy calls neither SetLastError nor SetLastErrorEx; thus, its failure does not affect a thread’s last-error code.
Here is a list of the LZERROR_* codes that LZCopy can return upon failure:
LZERROR_BADINHANDLE
The handle identifying the source file is not valid. The file cannot be read.
LZERROR_BADOUTHANDLE
The handle identifying the destination file is not valid. The file cannot be written.
LZERROR_GLOBALLOC
The maximum number of open compressed files has been exceeded or local memory cannot be allocated.
LZERROR_GLOBLOCK
The LZ file handle cannot be locked down.
LZERROR_READ
The source file format is not valid. |
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