static void ProtectionSafeMemoryCopy(IntPtr dest, IntPtr source, int count)
{
// UIntPtr = size_t
var bufferSize = new UIntPtr((uint)count);
Enums.VirtualProtectionType oldProtection, temp;
// unprotect memory to copy buffer
if (!NativeImport.VirtualProtect(dest, bufferSize, Enums.VirtualProtectionType.ExecuteReadWrite, out oldProtection))
{
throw new Exception("Failed to unprotect memory.");
}
byte *pDest = (byte *)dest;
byte *pSrc = (byte *)source;
// copy buffer to address
for (int i = 0; i < count; i++)
{
*(pDest + i) = *(pSrc + i);
}
// protect back
if (!NativeImport.VirtualProtect(dest, bufferSize, oldProtection, out temp))
{
throw new Exception("Failed to protect memory.");
}
}
