[1.7.10]Ensure to be loaded first|Catch log messages

[Flaghacker]

I have a couple of questions:

• How do I ensure my mod is loaded first, before any other mods?
  
• How can I "catch" all log messages from other mods & forge?
  

 

Thanks in advance.

[Flaghacker]

Thanks for your answers.

 

I want to make a small mod that open a JFrame with a progress bar that tells the user how long Iit will take to start minecraft, how much % it is already done, ... It will do so by rembering the old log lines, and compare them with the current ones. The mod will not any game content, so shouldn't it be safe to use before*?

 

I have another question: How can know when Minecraft is done starting, and the main menu is displayed?

 

EDIT: Do you mean registering a custom appender for log4j?