CODEWITHSUNDEEP
c#
Steve
Steve

Reputation: 11973

Do I need to free IntPtr handle aquired by Win32 API or WindowInteropHelper

right now I am acquiring the window and System Menu's handle by doing 

IntPtr hwnd = new WindowInteropHelper(this).Handle;
IntPtr menuHandle = GetSystemMenu(hwnd, false);

WindowInteropHelper is built in and GetSystemMenu is Win 32 API

[DllImport("user32.dll")]
static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);

My question is, do I need to release either of the handles? If I do, how and when should I do that?

Upvotes: 1

Views: 276

Answers (1)

user6996876
user6996876

Reputation:

It is a reference to a managed window, so the memory gets released when the window is closed. You don't need to free the pointer.

Look also at this answer: WindowInteropHelper.Handle — do I need to release it?

Similarly, also the following instruction is getting a copy/pointer of the menu already created and managed within the window lifecycle.

Upvotes: 1

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