Keybd_event simulates the keyboard to send the combination key

If you want to simulate sending the "@" Key

When sending a normal real keyboard, You need to press the Shift key first, then press the "2" button on the left keyboard without popping up, then release the keyboard, and then press the button.

The operations in the Code are as follows:

Keybd_event (vk_shift, 0); // simulate the first shift key
Keybd_event (0x32, 0, 0, 0); // press the number "2" on the left keyboard if it does not pop up.
Keybd_event (0x32, 0, keyeventf_keyup, 0); // release the keyboard
Keybd_event (vk_shift, 0, keyeventf_keyup, 0); // release the keyboard
Complete.