Need help with a problem concerning IEventReceiver

[Peter Müller]

Hi there!
I've got a problem concerning the IEventReceiver

Here's a bit of my code

Code: Select all

// In "EventReceiver.h"
class CEventReceiver : public IEventReceiver
{
 public:

 void test(void)
 {
  printf("This text is shown\n");
 };

 virtual bool OnEvent(SEvent event)
 {
  printf("This text not :(\n");
  return false;
 };
};

Code: Select all

// In "Game.cpp"
void CGame::init_grafic(EDriverType edtDriverType)
{
 printf("Start:\n");
 this->svGameVar = (SGameVar*)malloc(sizeof(SGameVar));
 printf("1\n");
 this->svGameVar->receiver = (CEventReceiver*)malloc(sizeof(CEventReceiver));
 printf("2\n");
 this->svGameVar->receiver->test();
 printf("2.1\n");
 this->svGameVar->device = createDevice(edtDriverType, dimension2d<s32>(300,300), 32, false, false, this->svGameVar->receiver);
 printf("3\n");
 this->svGameVar->driver = this->svGameVar->device->getVideoDriver();
 printf("4\n");
 this->svGameVar->env = this->svGameVar->device->getGUIEnvironment();
 printf("5\n");
 this->svGameVar->smgr = this->svGameVar->device->getSceneManager();
 printf("6\n");
};

This is shown in the console:

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Start:
1
2
This text is shown
2.1

And then an error message with 0x1005afc0 and 0xcdcdcdcd




If I take

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this->svSpielVar->device = createDevice(edtDriverType, dimension2d<s32>(300,300), 32, false, false);

instead of

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this->svSpielVar->device = createDevice(edtDriverType, dimension2d<s32>(300,300), 32, false, false, this->svGameVar->receiver);

all works




I really hope, someone can help me, please

[Peter Müller]

somebody?

[rincewind]

Hm, i'm not shure, but why don't you create your eventreceiver with new?
like

Code: Select all

this->svGameVar->receiver = new CEventReceiver();

greetings, rincewind

[schick]

First use a debugger , 2nd use a debugger.

If you write c++ applications, please do use new instead of malloc. The error messages are SEGFAULTS.

Try to create the eventreceiver using new. If it does not work try to make it static. But in fact if you would use a debugger there should be no problem to find out more information about the bug and finally get it fixed.

[Peter Müller]

Thanks!
I'll trie it.

But I used a debugger. He showed me ASM Source, so I couldn't lokate the problem.

He only said this->SGameVar->receiver "Kann Ausdruck nicht auswerten" (in English: Expression cannot evaluate)

[Peter Müller]

Yahoo! Now it works. And I also know why!
When using malloc, I have to call the constructor manuell.

[Dragon7]

Yes, also, get more into C++ a bit and get rid of hungarian notation ;o