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--- inserting_20characters_20into_20the_20keyboard_20buffer [2018/03/31 13:19] – external edit 127.0.0.1
+++ inserting_20characters_20into_20the_20keyboard_20buffer [2024/01/05 00:22] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 =====Inserting characters into the keyboard buffer=====
-//by Richard Russell, July 2006//\\ \\  On the //BBC Microcomputer// and some other Acorn computers you could insert a character into the keyboard buffer using the ***FX 138** command. For example the following code would insert the character "R" (CHR$82) into the keyboard buffer:\\ \\
+//by Richard Russell, July 2006//\\ \\  On the //BBC Microcomputer// and some other Acorn computers you could insert a character into the keyboard buffer using the ***FX 138** command. For example the following code would insert the character "R" (CHR$82) into the keyboard buffer:
-        *FX138,0,82
-//BBC BASIC for Windows// doesn't have a directly equivalent command, but you can achieve the same effect using the following procedure:\\ \\
+<code>
-        DEF PROCfx138(C%)
+      *FX138,0,82
-        WM_CHAR = 258
+</code>
-        SYS "PostMessage", @hwnd%, WM_CHAR, C%, 0
-        ENDPROC
+//BBC BASIC for Windows// doesn't have a directly equivalent command, but you can achieve the same effect using the following procedure:
-So to insert the character "R" into the keyboard buffer you would do:\\ \\
-        PROCfx138(82)
+<code bb4w>
-or, equivalently,\\ \\
+      DEF PROCfx138(C%)
-        PROCfx138(ASC("R"))
+      WM_CHAR = 258
+      SYS "PostMessage", @hwnd%, WM_CHAR, C%, 0
+      ENDPROC
+</code>
+The equivalent procedure for //BBC BASIC for SDL 2.0// is as follows:
+<code bb4w>
+      DEF PROCfx138(C%)
+      LOCAL ev{} : DIM ev{type%,stamp%,winid%,text&(1)}
+      ev.type% = &303 : ev.text&(0) = C% : SYS "SDL_PushEvent", ev{}
+      ENDPROC
+</code>
+So to insert the character "R" into the keyboard buffer you would do:
+<code bb4w>
+      PROCfx138(82)
+</code>
+or, equivalently,
+<code bb4w>
+      PROCfx138(ASC("R"))
+</code>