Function SetFilePointerEx_CURRENT_get [src]

The SetFilePointerEx function with parameters to get the current offset.

Prototype

pub fn SetFilePointerEx_CURRENT_get(handle: HANDLE) SetFilePointerError!u64

Parameters

handle: HANDLE

Possible Errors

Unexpected

Source

  pub fn SetFilePointerEx_CURRENT_get(handle: HANDLE) SetFilePointerError!u64 {
    var result: LARGE_INTEGER = undefined;
    if (kernel32.SetFilePointerEx(handle, 0, &result, FILE_CURRENT) == 0) {
        switch (GetLastError()) {
            .INVALID_PARAMETER => unreachable,
            .INVALID_HANDLE => unreachable,
            else => |err| return unexpectedError(err),
        }
    }
    // Based on the docs for FILE_BEGIN, it seems that the returned signed integer
    // should be interpreted as an unsigned integer.
    return @as(u64, @bitCast(result));
}  