Homebrew What's the easiest way to check if a title is installed?

[JoostinOnline]

The next version of Settings Editor GUI prompts you how you want to exit when in an emu nand (using exit(0) doesn't work). Currently all the options (various channels and shutdown/reset) are displayed, but, if the channel isn't installed, it gives a message and asks again. That works okay, but I want to limit the list of channels depending on what you have installed. Here is my code:

void EmuExitPrompt(void) {
int item;
char menu[1024];
do
{
*menu = '\0';
grlib_menuAddItem (menu, 1, "Load Homebrew Channel");
grlib_menuAddItem (menu, 2, "Load Homebrew Filter");
grlib_menuAddItem (menu, 3, "Load PostLoader Channel");
grlib_menuAddSeparetor (menu);
grlib_menuAddItem (menu, 4, "Restart Wii");
grlib_menuAddItem (menu, 5, "Shutdown Wii");

item = grlib_menu ("------ Select an exit type ------", menu);
if (item == 1) {
WII_LaunchTitle(TITLE_ID(0x00010001,0xAF1BF516)); // HBC v1.0.7+
WII_LaunchTitle(TITLE_ID(0x00010001,0x4a4f4449)); // HBC JODI
WII_LaunchTitle(TITLE_ID(0x00010001,0x48415858)); // HBC HAXX
Message ("Homebrew Channel not installed");
sleep (1);
}
if (item == 2) {
WII_LaunchTitle(TITLE_ID(0x00010001,0x54484246)); // Homebrew Filter THBF
Message ("Homebrew Filter not installed");
sleep (1);
}
if (item == 3) {
WII_LaunchTitle(TITLE_ID(0x00010001,0x504f5354)); // postLoader2 Channel POST
Message ("PostLoader Channel not installed");
sleep (1);
}
if (item == 4) {
SYS_ResetSystem(SYS_RESTART,0,0); // Restart Wii
}
if (item == 5) {
SYS_ResetSystem(SYS_SHUTDOWN,0,0); // Shutdown Wii
}
}
while (true);

} // EmuExitPromt

 

[JoostinOnline]

Anybody have a response to this?

 

[obcd]

Either you can scan the title/00010001 folder or you can search for entries in the uid.sys file.

You can find usfull code snippets in channel loader programs like Mighty Channels, Postloader, Triiforce.

 

[JoostinOnline]

Either you can scan the title/00010001 folder or you can search for entries in the uid.sys file.

You can find usfull code snippets in channel loader programs like Mighty Channels, Postloader, Triiforce.

Thanks. Wouldn't uid.sys contain entries for deleted channels?

 

[obcd]

Don't know. Logically, they should be removed from that file if the channel is properly deinstalled. Scanning the folder is a better solution.

 

[SifJar]

uid.sys will include deleted channels, it's not a log of what is installed, it's a log of what has been run (and the uids associated with them). Scanning the folder is the best way to do I think.

 

[JoostinOnline]

Thanks guys. I'm about to release a new version already (just waiting for one more report), but I'll probably add this in the one after.

 

[giantpune]

ES_GetNumContents or whatever its called
or ISFS_ReadDir( "/title/00010001/blablabla/content", ... )