API Reference (Visual Studio Debugging)
Applies to: 
Visual Studio 
Visual Studio for Mac
Note
This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
The reference section includes a conceptual overview of the API, a guide that shows the syntax and usage for all API elements, and an assortment of code examples. All references are listed alphabetically by category.
The following table shows the common HRESULT values returned by methods.
| Name | Description | Value |
|---|---|---|
| S_OK | Success. | 0x00000000 |
| E_UNEXPECTED | Unexpected failure. | 0x8000FFFF |
| E_NOTIMPL | Not implemented. | 0x80004001 |
| E_OUTOFMEMORY | Not enough memory to complete the operation. | 0x8007000E |
| E_INVALIDARG | One or more arguments are invalid. | 0x80070057 |
| E_NOINTERFACE | No such interface supported. | 0x80004002 |
| E_POINTER | Invalid pointer. | 0x80004003 |
| E_HANDLE | Invalid handle. | 0x80070006 |
| E_ABORT | Operation aborted. | 0x80004004 |
| E_FAIL | Unexpected failure. | 0x80004005 |
| E_ACCESSDENIED | General access denied error. | 0x80070005 |
Note
When a Visual Studio debugging method returns S_OK, it is assumed that all out parameter pointers are valid, that is, no validation is conducted on out parameter pointers when S_OK is returned.
Note
Invalid or NULL [out] parameters may cause the IDE to crash.