diff options
-rw-r--r-- | maintain_focus.c | 78 | ||||
-rw-r--r-- | makefile | 8 |
2 files changed, 86 insertions, 0 deletions
diff --git a/maintain_focus.c b/maintain_focus.c new file mode 100644 index 0000000..3835e7e --- /dev/null +++ b/maintain_focus.c @@ -0,0 +1,78 @@ +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <gphoto2/gphoto2.h> +#include <time.h> + +#define FOCUS_WIDGET_NAME "manualfocusdrive" +#define VIEWFINDER_WIDGET_NAME "viewfinder" + +/** + gp_widget_set_value(CameraWidget*, const void) <-sets value + gp_widget_get_child_by_label(CameraWidget* widget, const char* label, CameraWidget ** child) <- child is widget + gp_camera_get_config(Camera* camera, CameraWidget **window, GpContext* context) <- window is parent + + camera_init(Camera* camera, GPContext *context) + + + Create context: + context = gp_context_new(); + gp_context_set_error_func (context, ctx_error_func, NULL); + gp_context_set_status_func (context, ctx_status_func, NULL); + Create camera: + gp_camera_new(&camera); <- point to return value + +**/ + + +int set_widget_value(CameraWidget *widget, void *widget_value, const char *widget_name, Camera *camera, GPContext *context) { + int err; + if ((err = gp_widget_set_value(widget, widget_value)) != 0) { + printf("Error setting local widget value: %s\nThis is not the hardware\'s fault. Fix your code!\n", gp_result_as_string(err)); + return(1); + } + if((err = gp_camera_set_single_config(camera, widget_name, widget, context)) != 0) { + printf("Error modifying camera widget: %s\n", gp_result_as_string(err)); + return(2); + } + +} + +int main() { + char *focus_large_temp = "Near 3"; + int viewfinder_state = 1; //wish there was a better way to do this... + int err; + Camera *cam; + CameraWidget *widget_root; + CameraWidget *focus_widget; + CameraWidget *liveview_widget; + + GPContext *context = gp_context_new(); + gp_camera_new(&cam); + + //start up and connect to camera + printf("Initilizing camera...\n"); + if ((err = gp_camera_init(cam, context)) != 0) { + printf("Couldn't connect to camera: %s\n", gp_result_as_string(err)); + return(1); + } + + //get configuration tree + gp_camera_get_config(cam, &widget_root, context); + //get child widgets + gp_widget_get_child_by_name(widget_root, FOCUS_WIDGET_NAME, &focus_widget); + gp_widget_get_child_by_name(widget_root, VIEWFINDER_WIDGET_NAME, &liveview_widget); + + //set to liveview so we can ajust focus + set_widget_value(liveview_widget, &viewfinder_state, VIEWFINDER_WIDGET_NAME, cam, context); + + + + + gp_camera_exit(cam, context); + + + return(1); + +} diff --git a/makefile b/makefile new file mode 100644 index 0000000..c352f29 --- /dev/null +++ b/makefile @@ -0,0 +1,8 @@ +CC=gcc +OUT=capture_focus + +make: maintain_focus.c + $(CC) maintain_focus.c -lgphoto2 -o $(OUT) +debug: maintain_focus.c + $(CC) maintain_focus.c -lgphoto2 -ggdb -o $(OUT) + |