I am writing a file in Objc++ where I call a function of the library TooJpeg that is written in C++ and it receives a function as pointer in the first parameter, like this:
void writeByte(unsigned char byte)
{
//....
}
- (void)foo
{
//...
TooJpeg::writeJpeg(writeByte, array, width, height);
}
The code above works, but I need to call a objc function instead of a C++ one, like this:
- (void)writeByte:(unsigned char)byte
{
//....
}
- (void)foo
{
//...
TooJpeg::writeJpeg(writeByte, array, width, height);
}
The code above obviously does not compile.
The type of the first parameter is typedef void (*WRITE_ONE_BYTE)(unsigned char);
Any idea of what I can do to pass the function writeByte as pointer?
UPDATE:
The C++ code is this: https://create.stephan-brumme.com/toojpeg/
Thank you.
