C 實現的三種方式實現模擬鍵盤按鍵

模擬按鍵在.net中有三種方式實現。

第一種方式：system.windows.forms.sendkeys 

組合鍵：ctrl = ^ 、shift = + 、alt = %

模擬按鍵：a

private void button1_click(object sender, eventargs e)

");}

private void button1_click(object sender, eventargs e)

");}

sendkeys.sendwait // 同步模擬按鍵(會阻塞ui直到對方處理完訊息後返回)

第二種方式：keybd_event

模擬按鍵：a

[dllimport("user32.dll", entrypoint = "keybd_event", setlasterror = true)]

public static extern void keybd_event(keys bvk, byte bscan, uint dwflags, uint dwextrainfo);
private void button1_click(object sender, eventargs e)

public const int keyeventf_keyup = 2;

private void button1_click(object sender, eventargs e)

模擬按鍵：a / 兩次

[dllimport("user32.dll", entrypoint = "postmessagea", setlasterror = true)]

public static extern int postmessage(intptr hwnd, int msg, keys wparam, int lparam);
public const int wm_char = 256;
private void button1_click(object sender, eventargs e)

模擬組合鍵：ctrl + a

如下方式可能會失效，所以最好採用上述兩種方式

public const int wm_keydown = 256;

public const int wm_keyup = 257;
private void button1_click(object sender, eventargs e)
{webbrowser1.focus();
keybd_event(keys.controlkey, 0, 0, 0);
keybd_event(keys.a, 0, 0, 0); 
postmessage(webbrowser1.handle, wm_keydown, keys.a, 0);
keybd_event(keys.controlkey, 0, keyeventf_keyup, 0);

C 實現的三種方式實現模擬鍵盤按鍵

模擬按鍵在.net中有三種方式實現。第一種方式 system.windows.forms.sendkeys 組合鍵 ctrl shift alt 模擬按鍵 a private void button1 click object sender,eventargs e 模擬組合鍵 ctrl a priv...

C 實現的三種方式實現模擬鍵盤按鍵

組合鍵 ctrl shift alt 模擬按鍵 a private void button1 click object sender,eventargs e 模擬組合鍵 ctrl a private void button1 click object sender,eventargs e sendk...

C 三種方式實現模擬鍵盤按鍵

模擬按鍵在.net中有三種方式實現。第一種方式 system.windows.forms.sendkeys 組合鍵 ctrl shift alt 模擬按鍵 a private void button1 click object sender,eventargs e 模擬組合鍵 ctrl a priv...