timing how long key is down(pressed)

if it helps you to see how i've written the program with the KeyDown and the KeyUp function here it is: (the timers interval is 10)

private void timer1_Tick(object sender, EventArgs e)

this.timing++;

private void timer2_Tick(object sender, EventArgs e)

this.timing2++;

private void Form1_KeyDown(object sender, KeyEventArgs e)

if (this.timing2 >= 50 && this.timing2 <= 150)

this.morseLeter = " ";

this.timing2 = 0;

this.mst += this.morseLeter;

this.morseLeter = null;

private void Form1_KeyUp(object sender, KeyEventArgs e)

if (this.timing > 0 && this.timing <= 15)

this.morseLeter = ".";

if (this.timing > 15)

this.morseLeter = "-";

this.timing = 0;

this.mst += this.morseLeter;

this.morseLeter = null;

Hi again,

After successfully building my Morse translating program i've built an electronic circuit with a buzzer and a microphone who record the buzzer morse signals. i've placed there also a LPT port with which i can get the signal data received by the microphone to my computer.

in order to read this data i've placed a dll file called "inpout32.dll" into my WINDOWS\system32\ dir, then i've put these lines in my program:

[DllImport("inpout32.dll", EntryPoint = "Inp32")]

public static extern int Input(int adress);

and then when my microphone receives a buzz (similar to KeyDown) the Input(0x379) function returns 111 (an integer), and when it doesn't receive a buzz (similar to KeyUp) the Input(0x379) function returns 127 (an integer).

With that information in mind, how do i build the same morse code translating program using this Input function?

Thank you very much! It helped me undrstanding what should I do.

If I have more problems I will ask here again.

yes i'm using C#