Desktop Functions:

   Smart Device Functions:

Show Recent Changes
Subscribe (RSS)
Misc. Pages
Helpful Tools
Suggested Reading
Website TODO List
Support Forum
Download Visual Studio Add-In

Terms of Use
Privacy Policy
UIntPtr (user32)

A platform-specific type for unsigned pointers, handles and integers.

its "Ptr" postfix is misleading, UIntPtr can be used to represent any native unsigned integer including pointers.

One usage of UIntPtr is to represent the platform-specific size_t type. e.g.

//#include <cstring>
//void *memcpy( void *to, const void *from, size_t count );

[DllImport("msvcrt.dll", EntryPoint = "memcpy", CallingConvention = CallingConvention.Cdecl, SetLastError = false)]
public static extern IntPtr MemCopy(byte[] dest, byte[] src, UIntPtr count);

//Console Prints: 0 0 1
public static void CopyPrint()
    byte[] dest = new byte[] { 1, 1, 1 };
    byte[] src = new byte[] { 0, 0, 0 };
    UIntPtr count = new UIntPtr(2u);

    MemCopy(dest, src, count);

    for (int i = 0; i < dest.Length; i++)
    Console.Write(dest[i] + " ");

Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

Access directly from VS:
Terms of Use
Edit This Page
Find References
Show Printable Version