UPdated Dispcount handling

harbour/source/rtl/gtsln/gtsln.c

@@ -39,10 +39,14 @@
 
 #include "hbapigt.h"
 
+static USHORT s_uiDispCount;
+
 void hb_gt_Init( int iFilenoStdin, int iFilenoStdout, int iFilenoStderr )
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_Init()"));
 
+   s_uiDispCount = 0;
+
    SLtt_get_terminfo();
    SLkp_init();
    SLang_init_tty(34, /* Ctrl-G */
@@ -286,6 +290,8 @@ void hb_gt_DispBegin( void )
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_DispBegin()"));
 
+   ++s_uiDispCount;
+
    /* TODO: Is there a way to change screen buffers?
             ie: can we write somewhere without it going to the screen
             and then update the screen from this buffer at a later time?
@@ -297,6 +303,8 @@ void hb_gt_DispEnd()
 {
    HB_TRACE(HB_TR_DEBUG, ("hb_gt_DispEnd()"));
 
+   --s_uiDispCount;
+
    /* TODO: here we flush the buffer, and restore normal screen writes */
 }
 
@@ -360,3 +368,8 @@ char * hb_gt_Version( void )
 {
    return "Harbour Terminal: Slang";
 }
+
+USHORT hb_gt_DispCount()
+{
+   return s_uiDispCount;
+}