Current version: 1.2 (01-30-2017)

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Hello everyone. Today I'm releasing a Windows tool that will make the GB injection process much easier and customizable. I'm introducing Ultimate GB VC Injector for 3DS.

What does it do?:
It takes a Gameboy (non color) backup file and converts it to an installable CIA for your 3DS with CFW. It does all in a one single program.

Features:

• VC GB injection into a CIA
• Easy made custom 3D banner
• Easy made custom text/footer banner
• Easy made custom ingame palletes!
• Easy made whole process!

Requeriments: Microsoft .NET framework 4.5

Tutorial:
You'll just follow the steps in program. But just in case:

Tutorial + screenshots

Step 1:

Rom file selection

Open the program. You'll see this screen:


Press Open GB File button. It'll prompt you to pick a .gb file.


For this tutorial I'll pick the game The Legend of Zelda: Link's Awakening (not DX version).

When you pick a rom you'll be able to go to Step 2 (icon and name).

Step 2:

VC game icon and name

This is the Step 2 main screen:


All the fields are explained in the info boxes, but let me know if something doesn't understand.

Complete the fields making the most legit as possible (if you want to). For example:


I used a title screen screenshot in it's original size as icon (the program will automatically stretch it).
To get that "old pallete" style in my screenshot, I took it with BGB Emulator, doing right click> Options...> GB Colors, and setting like this:




When you complete all the fields you'll able to go to Step 3 (3d banner).

Step 3:

VC GB 3D banners

This is the Step 3 main screen:


Note: The program will load some default values (based on those in Step 2), but you can anyway replace these default values with ohter ones.
Example: if you want the icon and 3D banner to have different images, then first complete Step 2 with the icon image that you want and then complete Step 3 with the banner image that you want. Otherwise if you are too lazy or you want the same standard as legit VC CIA, leave it as is.

For this example, I'll let the same image as the icon, but I'll edit the bottom banner, importing a custom one I made with GIMP (using the import and use custom footer image option):



You can also make your own text banner without leaving the application, as a quick and easy solution. You can change the font type, size, and brightness. Also there's a preview of that text banner (ignore the red borders, they won't be there in the console).

Doing my changes for this example:


When you complete or modify all the fields you'll able to go to Step 4 (VC parameters).

Step 4:

VC parameters

This is the Step 4 main screen:

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In this screen you can make the game full screen (as long as you launch the game without holding START or SELECT button).
You can also edit the ingame palletes for both normal and "green effect" modes.
The normal mode pallete is the one you'll see by default.
The "green effect" mode pallete is the one you'll see when you change mode by pressing L+R+Y.

It doesn't support custom ingame frame borders right now.

For this example I'll pick the Super Gameboy pallete for the normal mode. To do this I press the Edit normal pallete button, which summon a pallete selector form.


The pallete selector form supports exporting a pallete to a file, so they can be shared between you.


For this example want the full screen mod, and the Super Gameboy pallete as normal pallete. For the "green effect" pallete I'll let the green original one. This is the result:


There's some things I didn't say, but I think they're self-explanatory (If not, let me know!).

Once we have everything ready, press Finish button.

That's it! The application will ask you where do you want to save the CIA file and It took some seconds to create it.
When the CIA is ready, the application will let you know it.



Then you can install the CIA in sdcard using any CIA manager (actually I use the new FBI).

(The tutorial's screenshot are from v1.0)

Console screenshots:

Warning: Spoilers inside!

Warning: Spoilers inside!

TODO, petitions, etc: For now I'll just read this thread and make changes acording to the best for all. The code will be released much later; I'm planing to do a series of VC injectors... If a new version comes, I'll post here and I'll edit the OP.

Download links:

Warning: Spoilers inside!

v1.2: MEGA
v1.1: MEGA
v1.0: MEGA

Changelog:

Warning: Spoilers inside!

v1.2:
+ Added: Now when you change the palletes ingame the pallete swapping splash icon will have the properly pallete color. (see this)
+ Added: Option to make an injection with the new Virtual Console (that one which has no savestates and supports Link Cable if you have the correct game patches for that). Thanks to @Traiver.
* Fixed: Override the imported icon.bin flags with another ones, so the game will show on the activity log, and the parental controls won't be a problem.
* Fixed: Now everytime you open a new gbc rom, the program will auto-generate a new random Title ID and product code.
+ Added: Option to make 160x144 (GBC pixel perfect original) screen without pressing START or SELECT (but with black borders).
+ Added: Game recognition. Most of official roms (non hacks/translated roms) now will be recognized and it'll auto-complete game name and publisher.
+ Added: Automatic title screen and/or box cover download! Thanks to @natinusala!
+ Added: Now the random Title ID's won't match an eShop app Title ID.
+ Added: Progress bar on step 4.
+ Added: Now you can write two separate lines in the banner text with custom font and size for each one. Asked by @dbzkamehameha.
+ Added: VC SoundMultiSample option. With this you can enhance the VC audio quality. Useful if your inject makes bad sounds. Reported issue by @dbzkamehameha & @angelhp and solved by @angelhp.
+ Added: Now you can choose the message that we will see in the Home Menu when closing the game after suspending. Asked by @noctis90210.
+ Added: Native IPS patching. Now you can apply an IPS patch directly before making the CIA. Useful for use with GBA enhanced patches (just an example, any IPS patch will work).
* Fixed: Support for Windows XP (Now it uses Framework 4.0).
* Got rid of the interpolation mode selection.
* Better quality icon and banner resizing.
* Fixed the ampersands missing on the game name.
* Fixed the bug that causes line breaks on the Title name and publisher to become question marks.

v1.1:
+ Added: Now you can specify a short game name when making the icon of the CIA.
* Fixed: Now the injections should be region-free (not tested).
* Fixed: Now the parental control won't be a trouble.
* Fixed: Support for 32 bits operative systems.

v1.0: Initial release

Enjoy!