I have 2 different GUIs that I want to be able to swap between when the player presses a key inside either of the GUIs. Does anyone know how to do this?

Here is a keybinding tutorial, did you already read it?

 

http://www.minecraftforge.net/wiki/Key_Binding

I got that working. It just prints a message to the console. But I can't open my GUI anymore like I could before...

Okay it isn't anything to with that I have just messed something up

You don't need a KeyBinding for detecting keys inside Guis. Just override the keyPressed method in the GuiScreen and you'll be able to switch easily.

ah, didn't know that there already is something build in.

Which class do you mean by GuiScreen, the actual GUI class I am guessing and I can't find the keyPressed method.

Ahhh, I thought keyPressed didn't exist and I saw keyTyped but wasn't sure it was the same. Thanks.

I am going to use the KeyBinding approach as first suggested as it means the button can be changed in the controls menu. But I don't know how to check whether a certain GUI is open and how to open another one inside my KeyHandler class. I haven't really used events that much.

if(Minecraft.getMinecraft().currentScreen instanceof SomethingGui)  ?

 

That doesn't seem to work...