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GetFileSize The GetFileSize function retrieves the size, in bytes, of the specified file.
VB4-32,5,6
Declare Function GetFileSize Lib "kernel32" Alias "GetFileSize" (ByVal hFile As Long, lpFileSizeHigh As Long) As Long |
VB.NET
System.IO.FileInfo.Length |
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Operating Systems Supported |
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Requires Windows NT 3.1 or later; Requires Windows 95 or later |
- hFile
Specifies an open handle of the file whose size is being returned. The handle must have been created with either GENERIC_READ or GENERIC_WRITE access to the file.
- lpFileSizeHigh
Points to the variable where the high-order word of the file size is returned. This parameter can be NULL if the application does not require the high-order word. |
If the function succeeds, the return value is the low-order doubleword of the file size, and, if lpFileSizeHigh is non-NULL, the function puts the high-order doubleword of the file size into the variable pointed to by that parameter.
If the function fails and lpFileSizeHigh is NULL, the return value is 0xFFFFFFFF. To get extended error information, call GetLastError.
If the function fails and lpFileSizeHigh is non-NULL, the return value is 0xFFFFFFFF and GetLastError will return a value other than NO_ERROR. |
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