SendKeys.send is sending more than one character

Question

sorry for my bad english.

I am writing a keyboard application for the touchscreen. but,

for example, when I press the A key, sometimes it's writes 5 times A key . I am using basically button click event.

private void button42_Click(object sender, EventArgs e)
    {
        SendKeys.Send("A");
        Thread.Sleep(100);
    }

there is no problem with the mouse_click event. just touch

how can i do it?

Code Name Jack · Answer

1.Try handling it in a mouse_up or touch_up event instead of using a delay here. Actual implementation and events will depend on you framework.
mouse_up /touch_up will make sure that you even only fires when touch is released.
To add repetition on touch and hold, you may have to add additional logic however.

Try declaring a field to toggle the value of event fired.
 private bool handling=false;
 private void button42_Click(object sender, EventArgs e)
 {
     if(!handling)
     {
         handling=true;
         SendKeys.Send("A");
         Task.Delay(100).Wait();
         handling=false;
    }
 }

SendKeys.send is sending more than one character

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