Windows API core programming experience and api learning experience

Windows API core programming experience and api learning experience

I. Error Handling

Internally, when a windows function detects an error, it uses the "Thread Local Storage Area" mechanism to associate the error code with the "main thread.

WinError. h is generally in the C: \ Program Files \ Microsoft SDKs \ Windows \ v6.0A \ Include directory.

Each error has three representations:

1. A Message ID

2. Message Text

3. A serial number

To view the specific error, call the GetLastError function.

The Error lookup software is used to view the Error message text corresponding to the message number.

The FormatMessage function converts the error code to the corresponding text description.