Initial (manual) import

TempleOSCD/Demo/Graphics/BSpline.HC

@@ -0,0 +1,35 @@
+#define PTS_NUM	16
+
+U0 BSplineDemo()
+{
+  CDC *dc=DCAlias;
+  I64 arg1,arg2,i=0,msg_code;
+  CD3I32 c[PTS_NUM];
+
+  SettingsPush;
+  Fs->win_inhibit=WIG_TASK_DFT-WIF_SELF_FOCUS-WIF_SELF_BORDER;
+
+  DocClear;
+  "Sel ctrl points with left mouse.  Right when finished.\n";
+  DCFill;
+  do {
+    msg_code=GetMsg(&arg1,&arg2,1<<MSG_MS_L_UP+1<<MSG_MS_R_UP);
+    if (msg_code==MSG_MS_L_UP) {
+      c[i].x=arg1; c[i].y=arg2; c[i].z=0;
+      dc->color=GREEN;
+      GrCircle(dc,arg1,arg2,10);
+      i++;
+    }
+  } while (i<PTS_NUM && msg_code!=MSG_MS_R_UP);
+  dc->color=RED;
+  Gr2BSpline(dc,c,i,TRUE);
+  dc->color=BLUE;
+  Gr3BSpline(dc,c,i,TRUE);
+  DCDel(dc);
+  SettingsPop;
+
+  PressAKey;
+  DCFill;
+}
+
+BSplineDemo;