Keyboard input

[bigzpanda]

Good morning,
I've just discovered Irrlicht and my first questions are coming.
I would like to get to keyboard entry and put it into a statictext.

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const char* input;
stringc charconvert;
class TraitementDesMessages : public IEventReceiver
{
public:

	virtual bool OnEvent(SEvent event)
	{
		if (event.EventType == EET_KEY_INPUT_EVENT  && event.KeyInput.PressedDown)
		{
  			
			stringc charconvert=key2string(event.KeyInput.Key);
			input = charconvert.c_str();
			printf("%s",input);
		return true;
	}
	}
};

(key2string is a function given in this forum)
So with this little code when the user presses on a letter, the programm writes it in the console.
But now, how can I do to write the letter in my statictext ?

Thank you for your future help !

[Acki]

(key2string is a function given in this forum)

that's nice, but what does it do?

well, you should learn general coding first...
you declare charconvert two times, first as a global and then as a local !!!
Then input is declared as global and even not needed at all...

you need a global string to hold the complete text...
then instead of printing the key input you add it to this string...
this string you can use for example to set the text of a static text box...

for example:

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stringc theString;
class TraitementDesMessages : public IEventReceiver
{
public:

	virtual bool OnEvent(SEvent event)
	{
		if (event.EventType == EET_KEY_INPUT_EVENT  && event.KeyInput.PressedDown)
		{
  			// add key to string
  			theString += key2string(event.KeyInput.Key).c_str();
  			// set string as text for staticText box
			txtBox->setText(theString.c_str());
		return true;
	}
	}
};

[bigzpanda]

Hi Acki and thank you for the help.
Since that point, i have no problem, but what I don't understand is:

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debuginput->setText(theString.c_str()); 

I can't use debuginput and this function, because I declare them after, in the main function:

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int main(void)
{
...
IGUIStaticText *debuginput = gui->addStaticText(L">>", core::rect<s32>(5,768-85,1024,768), false, true, 0, -1, false);
...
}

My compilator says:"'debuginput' was not declared in this scope."
How can i do ?

[mqrk]

then make debuginput global (global variables are declared outside of any function)

[bigzpanda]

Good morning mqrk,
I've been trying to declare debuginput as global, but with any method, I get an error. Could you make me an example of what you mean in this snippet ?

#include "global.h"
#include "fonctions.h"

stringc theString;
class TraitementDesMessages : public IEventReceiver
{
public:

virtual bool OnEvent(SEvent event)
{
theString += key2string(event.KeyInput.Key).c_str();
debuginput->setText(theString.c_str());
return true;
}
}
};



int main(void)
{
//initialisation moteur
TraitementDesMessages traitement;
IrrlichtDevice *device = createDevice (video::EDT_OPENGL, core::dimension2d<s32>(1024,768),32,false,true,false,&traitement);
video::IVideoDriver* driver = device->getVideoDriver ();
scene::ISceneManager *scenegraph = device->getSceneManager();


IGUIStaticText *debuginput = gui->addStaticText(L">>", core::rect<s32>(5,768-85,1024,768), false, true, 0, -1, false);
//boucle de rendu
while (device->run())
{
//rendu
driver->beginScene(true, true, video::SColor(0,0,0,0));
scenegraph->drawAll ();
driver->endScene ();
device->drop ();
return 0;
}

[Acki]

If you don't know how to make a variable global, then you realy should read some C/C++ books first !!!

another question, why don't you simply use an edit box ???

#include "global.h"
#include "fonctions.h"

stringc theString;
IGUIStaticText *debuginput;
class TraitementDesMessages : public IEventReceiver
{
public:

virtual bool OnEvent(SEvent event)
{
theString += key2string(event.KeyInput.Key).c_str();
debuginput->setText(theString.c_str());
return true;
}
}
};



int main(void)
{
//initialisation moteur
TraitementDesMessages traitement;
IrrlichtDevice *device = createDevice (video::EDT_OPENGL, core::dimension2d<s32>(1024,768),32,false,true,false,&traitement);
video::IVideoDriver* driver = device->getVideoDriver ();
scene::ISceneManager *scenegraph = device->getSceneManager();


debuginput = gui->addStaticText(L">>", core::rect<s32>(5,768-85,1024,768), false, true, 0, -1, false);
//boucle de rendu
while (device->run())
{
//rendu
driver->beginScene(true, true, video::SColor(0,0,0,0));
scenegraph->drawAll ();
driver->endScene ();
device->drop ();
return 0;
}

[bigzpanda]

I know how to declare a variable as global and I had written exactly the same code.
In fact, I've been trapped with your code:

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debuginput->setText(theString.c_str()); 

This doesn't work, because setText must have a wchar_t for its parameter.

The working code is

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			swprintf(input, 100, L"%s", key2string(event.KeyInput.Key).c_str());
			wcscat(inputtext,input);
			debuginput->setText(inputtext);  

[Acki]

ahh, yeah...
you can also try to declare the string as a wide char...

Code: Select all

stringw theString;

then it should work without converting...