VOID keybd_event(
BYTE bVk, // virtual-key code
BYTE bScan, // hardware scan code
DWORD dwFlags, // flags specifying various function options
DWORD dwExtraInfo // additional data associated with keystroke
);
Parameters
bVk
Specifies a virtual-key code. The code must be a value in the range 1 to 254.
bScan
Specifies a hardware scan code for the key.
dwFlags
A set of flag bits that specify various aspects of function operation. An application can use any combination of the following predefined constant values to set the flags:
KEYEVENTF_EXTENDEDKEY
If specified, the scan code was preceded by a prefix byte having the value 0xE0 (224).
KEYEVENTF_KEYUP
If specified, the key is being released. If not specified, the key is being depressed.
dwExtraInfo
Specifies an additional 32-bit value associated with the key stroke.
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