Search
Module:
Directory

   Desktop Functions:

   Smart Device Functions:


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

CM_Get_Device_Interface_List (cfgmgr32)
 
.
Summary
The CM_Get_Device_Interface_List function retrieves a list of device interface instances that belong to a specified device interface class.

C# Signature:

[DllImport("CfgMgr32.dll", CharSet = CharSet.Unicode)]
static extern uint CM_Get_Device_Interface_List(ref Guid interfaceClassGuid, string deviceID, char[] buffer, uint bufferLength, uint flags);

Notes:

Cannot use StringBuilder for buffer, since the buffer may contain several null terminated strings.

Sample Code:

static string[] GetDeviceInterfaces(Guid guid) {
     uint size;
     var result = CM_Get_Device_Interface_List_Size(out size, ref guid, null, 0);
     if (result != 0) throw new Exception("Unable to retrieve device interface list size: " + result);    

     var buffer = new char[(int)size];
     result = CM_Get_Device_Interface_List(ref guid, null, buffer, size, 0);
     if (result != 0) throw new Exception("Unable to retrieve device interface list: " + result);

     return new string(buffer).Split(new char[] { '\0' }, StringSplitOptions.RemoveEmptyEntries);
}

Documentation

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 PInvoke.net directly from VS:
Terms of Use
Find References
Show Printable Version
Revisions