bool KeyPressed() - How to implement this?!

[ClobberXD]

Please view my earlier topic for details : https://linustechtips.com/main/topic/565178-screw-the-key-pause/

 

I would like to know how to implement the bool KeyPressed() flag in my code. A snippet of code as an example will definitely help...

 

Thanks a ton!

[Paralectic]

Here is the documentation you need if you're using C++

https://msdn.microsoft.com/en-us/library/system.windows.forms.keypresseventargs.handled(v=vs.110).aspx

[ClobberXD]

2 minutes ago, Paralectic said:

Here is the documentation you need if you're using C++

https://msdn.microsoft.com/en-us/library/system.windows.forms.keypresseventargs.handled(v=vs.110).aspx

That's too complex - I don't understand anything! Please help me with this... I am still only capable of developing console "games" in C++. Why don't you post a very simple example - the function handles a keypress, and the definition of the function.

 

Thanks!

[Paralectic]

As from Stackoverflow.

GetAsyncKeyState() is what you're looking for. It reads the physical state of the keyboard, regardless of the input queue state. If the high-bit is set, then the key was down at the time of the call.

// Fetch tab key state.
SHORT tabKeyState = GetAsyncKeyState( VK_TAB );

// Test high bit - if set, key was down when GetAsyncKeyState was called.
if( ( 1 << 16 ) & tabKeyState )
{
    // TAB key down... 
}

And here is the documentation for the used function GetAsyncKeyState()

https://msdn.microsoft.com/en-us/library/windows/desktop/ms646293(v=vs.85).aspx

[Zeldhoron]

you need 2 arrays of booleans (each element represents a key, true = down, false = up)

1 array represents the state of the previous update

the other represents the state of the current update

bool KeyPressed(int keyCode)
{
	return !oldKeys[keyCode] && currentKeys[keyCode];
}

each update you will have to copy over currentKeys to oldKeys and update currentKeys

if using a HWND it will receive events of key state changes

[ClobberXD]

13 hours ago, Paralectic said:

As from Stackoverflow.

GetAsyncKeyState() is what you're looking for. It reads the physical state of the keyboard, regardless of the input queue state. If the high-bit is set, then the key was down at the time of the call.

// Fetch tab key state.
SHORT tabKeyState = GetAsyncKeyState( VK_TAB );

// Test high bit - if set, key was down when GetAsyncKeyState was called.
if( ( 1 << 16 ) & tabKeyState )
{
    // TAB key down... 
}

And here is the documentation for the used function GetAsyncKeyState()

https://msdn.microsoft.com/en-us/library/windows/desktop/ms646293(v=vs.85).aspx

Thanks man! Will try it out!