Registering your callbacks

The first thing to do is to register your own callbacks, so whenever a module calls a function it's passed to you. The following function does it:

int gocr_guiSetFunction ( gocrGUIFunction type, void *func );

Where func is a pointer to the callback function (converted to void *), and type is one of the following:

Type	Arguments
gocrBeginWindow	( wchar_t *title, wchar_t **buttons )
gocrEndWindow
gocrDisplayCheckButton
gocrDisplayImage
gocrDisplayRadioButtons
gocrDisplaySpinButton
gocrDisplayText
gocrDisplayTextField