wrappers/c_sync: Add dllexport to sync API - fixes OpenKinect#315

Signed-off-by: Benn Snyder <[email protected]>

wrappers/c_sync/libfreenect_sync.h

@@ -28,11 +28,26 @@
 #include "libfreenect.h"
 #include <stdint.h>
 
+
+/// If Win32, export all functions for DLL usage
+#ifndef _WIN32
+  #define FREENECTAPI_SYNC /**< DLLExport information for windows, set to nothing on other platforms */
+#else
+  /**< DLLExport information for windows, set to nothing on other platforms */
+  #ifdef __cplusplus
+    #define FREENECTAPI_SYNC extern "C" __declspec(dllexport)
+  #else
+    // this is required when building from a Win32 port of gcc without being
+    // forced to compile all of the library files (.c) with g++...
+    #define FREENECTAPI_SYNC __declspec(dllexport)
+  #endif
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-int freenect_sync_get_video(void **video, uint32_t *timestamp, int index, freenect_video_format fmt);
+FREENECTAPI_SYNC int freenect_sync_get_video(void **video, uint32_t *timestamp, int index, freenect_video_format fmt);
 /*  Synchronous video function, starts the runloop if it isn't running
 
     The returned buffer is valid until this function is called again, after which the buffer must not
@@ -49,7 +64,7 @@ int freenect_sync_get_video(void **video, uint32_t *timestamp, int index, freene
 */
 
 
-int freenect_sync_get_depth(void **depth, uint32_t *timestamp, int index, freenect_depth_format fmt);
+FREENECTAPI_SYNC int freenect_sync_get_depth(void **depth, uint32_t *timestamp, int index, freenect_depth_format fmt);
 /*  Synchronous depth function, starts the runloop if it isn't running
 
     The returned buffer is valid until this function is called again, after which the buffer must not
@@ -65,7 +80,7 @@ int freenect_sync_get_depth(void **depth, uint32_t *timestamp, int index, freene
         Nonzero on error.
 */
 
-int freenect_sync_set_tilt_degs(int angle, int index);
+FREENECTAPI_SYNC int freenect_sync_set_tilt_degs(int angle, int index);
 /*  Tilt function, starts the runloop if it isn't running
 
     Args:
@@ -76,7 +91,7 @@ int freenect_sync_set_tilt_degs(int angle, int index);
         Nonzero on error.
 */
 
-int freenect_sync_get_tilt_state(freenect_raw_tilt_state **state, int index);
+FREENECTAPI_SYNC int freenect_sync_get_tilt_state(freenect_raw_tilt_state **state, int index);
 /*  Tilt state function, starts the runloop if it isn't running
 
     Args:
@@ -87,7 +102,7 @@ int freenect_sync_get_tilt_state(freenect_raw_tilt_state **state, int index);
         Nonzero on error.
 */
 
-int freenect_sync_set_led(freenect_led_options led, int index);
+FREENECTAPI_SYNC int freenect_sync_set_led(freenect_led_options led, int index);
 /*  Led function, starts the runloop if it isn't running
 
     Args:
@@ -99,7 +114,7 @@ int freenect_sync_set_led(freenect_led_options led, int index);
 */
 
 
-void freenect_sync_stop(void);
+FREENECTAPI_SYNC void freenect_sync_stop(void);
 #ifdef __cplusplus
 }
 #endif