SendInput

代替了 mouse_event 以及 keybd_event

prototype

UINT WINAPI SendInput(
_In_ UINT nInputs,
_In_ LPINPUT pInputs,
_In_ int cbSize              // 表示的是input的size，可以通过sizeof(INPUT) * n [这里传递的是 pInput的首地址，这个input可能不止一个]
);

LPINPUT

typedef struct tagINPUT {
    DWORD   type;
 
    union
    {
        MOUSEINPUT      mi;
        KEYBDINPUT      ki;
        HARDWAREINPUT   hi;
    };
} INPUT, *PINPUT, FAR* LPINPUT;

MOUSEINPUT

typedef struct tagMOUSEINPUT {
    LONG    dx;
    LONG    dy;
    DWORD   mouseData;
    DWORD   dwFlags;
    DWORD   time;
    ULONG_PTR dwExtraInfo;
} MOUSEINPUT, *PMOUSEINPUT, FAR* LPMOUSEINPUT;

KEYBDINPUT

typedef struct tagKEYBDINPUT {
    WORD    wVk;
    WORD    wScan;
    DWORD   dwFlags;
    DWORD   time;
    ULONG_PTR dwExtraInfo;
} KEYBDINPUT, *PKEYBDINPUT, FAR* LPKEYBDINPUT;

HARDWAREINPUT

typedef struct tagHARDWAREINPUT {
    DWORD   uMsg;
    WORD    wParamL;
    WORD    wParamH;
} HARDWAREINPUT, *PHARDWAREINPUT, FAR* LPHARDWAREINPUT;

use keyboard

ki -> key input; mi-> mouse input

#define WINVER 0x0500
#include <windows.h>
 
int main()
{
    // This structure will be used to create the keyboard
    // input event.
    INPUT ip;
 
    // Pause for 5 seconds.
    Sleep(5000);
 
    // Set up a generic keyboard event.
    ip.type = INPUT_KEYBOARD;
    ip.ki.wScan = 0; // hardware scan code for key
    ip.ki.time = 0;
    ip.ki.dwExtraInfo = 0;
 
    // Press the "A" key
    ip.ki.wVk = 0x41; // virtual-key code for the "a" key
    ip.ki.dwFlags = 0; // 0 for key press
    SendInput(1, &ip, sizeof(INPUT));
 
    // Release the "A" key
    ip.ki.dwFlags = KEYEVENTF_KEYUP; // KEYEVENTF_KEYUP for key release
    SendInput(1, &ip, sizeof(INPUT));
 
    // Exit normally
    return 0;
}

... 目前还未测试使用，仅仅见到了进行记录
https://stackoverflow.com/questions/22419038/how-to-use-sendinput-function-c
use of mouse event
https://stackoverflow.com/questions/62962636/how-to-use-sendinput-properly-to-simulate-mouse-input-in-c-sharp