TGA_SETTING_IGNORE_ALPHA
if (fSettings->SetGetBool(TGA_SETTING_IGNORE_ALPHA))
{TGA_SETTING_IGNORE_ALPHA, TRAN_SETTING_BOOL, false}
fSettings->SetGetBool(TGA_SETTING_IGNORE_ALPHA, &ignoreAlpha);
int32 val = (fSettings->SetGetBool(TGA_SETTING_IGNORE_ALPHA)) ? 1 : 0;