Index: live.c
===================================================================
--- live.c	(revision 51)
+++ live.c	(revision 52)
@@ -116,7 +116,7 @@
 /////// video (devices) part
 
 
-char raydium_live_video_isvalid(int i)
+signed char raydium_live_video_isvalid(int i)
 {
 if(i>=0 && i<RAYDIUM_MAX_VIDEO_DEVICES &&
     raydium_live_device[i].capture_style!=RAYDIUM_LIVE_FREE)
@@ -518,7 +518,7 @@
 
 
 
-char raydium_live_texture_isvalid(int i)
+signed char raydium_live_texture_isvalid(int i)
 {
 if(i>=0 && i<RAYDIUM_MAX_LIVE_TEXTURES && raydium_live_texture[i].state)
 	return 1;