CAM_OPTIONAL_EXTRA_BUTTON 257 include/camera.h #undef CAM_OPTIONAL_EXTRA_BUTTON // extra button (remapped, for use in ALT mode) can be set from menu, must set next two values as well CAM_OPTIONAL_EXTRA_BUTTON 70 platform/a470/platform_camera.h #define CAM_OPTIONAL_EXTRA_BUTTON 1 // allow the Power button to be remapped in ALT mode CAM_OPTIONAL_EXTRA_BUTTON 100 platform/ixus110_sd960/platform_camera.h #define CAM_OPTIONAL_EXTRA_BUTTON 1 // allow the Power button to be remapped in ALT mode