疑难问题啊!数据拷贝
[DllImport("kernel32", EntryPoint = "RtlMoveMemory", ExactSpelling = true, CharSet = CharSet.Ansi, SetLastError = true)]
private static extern void CopyMemory(object Destination, object Source, long Length);
private static string aa(byte[] fbytFile)
{
dim dbl as double
CopyMemory(ByVal VarPtr(dbl), ByVal VarPtr(fbytFile(0)) + 90, 8)
}
这是VB6的一段代码.调用了一个API.
哪位帮下我,写成C#要怎么写啊
[解决办法]
private static string aa(byte[] fbytFile) --->VB是这样吗?
{
double dbl ;
CopyMemory(object VarPtr(dbl), object (VarPtr(fbytFile(0)) + 90), 8) ;
}
private static void CopyMemory(object Destination, object Source, long Length);
[解决办法]
参考如下代码
- C# code
[DllImport("kernel32", EntryPoint = "RtlMoveMemory")]private static extern void CopyMemory( IntPtr destination, IntPtr source, int length); private static string aa(byte[] fbytFile) { double[] dbl = new double[1]; CopyMemory(Marshal.UnsafeAddrOfPinnedArrayElement(dbl, 0), Marshal.UnsafeAddrOfPinnedArrayElement(fbytFile, 0), Marshal.SizeOf(typeof(double))); return dbl[0].ToString();} private void button1_Click(object sender, EventArgs e){ double[] d = new double[] { 20071009 }; byte[] b = new byte[8]; Buffer.BlockCopy(d, 0, b, 0, 8); Text = aa(b);}