The R13B03 release.OTP_R13B03

1 files changed, 42 insertions, 0 deletions

diff --git a/lib/gs/doc/src/examples/ex7.erl b/lib/gs/doc/src/examples/ex7.erl
new file mode 100644
index 0000000000..a80c36fdcb
--- /dev/null
+++ b/lib/gs/doc/src/examples/ex7.erl
@@ -0,0 +1,42 @@
+-module(ex7).
+-copyright('Copyright (c) 1991-97 Ericsson Telecom AB').
+-vsn('$Revision: /main/release/2 $ ').
+
+-export([mk_window/0]).
+
+mk_window() ->
+    S= gs:start(),
+    Win= gs:create(window,S,[{motion,true},{map,true}]),
+    gs:config(Win,[{configure,true},{keypress,true}]),
+    gs:config(Win,[{buttonpress,true}]),
+    gs:config(Win,[{buttonrelease,true}]),
+    event_loop(Win).
+
+event_loop(Win) ->      
+    receive
+        {gs,Win,motion,Data,[X,Y | Rest]} ->
+            %% mouse moved to position X Y
+            io:format("mouse moved to X:~w  Y:~w~n",[X,Y]);
+        {gs,Win,configure,Data,[W,H | Rest]} ->
+            %% window was resized by user
+            io:format("window resized W:~w  H:~w~n",[W,H]);
+        {gs,Win,buttonpress,Data,[1,X,Y | Rest]} -> 
+            %% button 1 was pressed at location X Y
+            io:format("button 1 pressed X:~w  Y:~w~n",[X,Y]);
+        {gs,Win,buttonrelease,Data,[_,X,Y | Rest]} ->
+            %% Any button (1-3) was released over X Y
+            io:format("Any button released X:~w  Y:~w~n",[X,Y]);
+        {gs,Win,keypress,Data,[a | Rest]} -> 
+            %% key `a' was pressed in window
+            io:format("key a was pressed in window~n");
+        {gs,Win,keypress,Data,[_,65,1 | Rest]} ->
+            %% Key shift-a
+            io:format("shift-a was pressed in window~n");
+        {gs,Win,keypress,Data,[c,_,_,1 | Rest]} ->
+            %% CTRL_C pressed
+            io:format("CTRL_C was pressed in window~n");
+        {gs,Win,keypress,Data, ['Return' | Rest]} ->
+            %% Return key pressed
+            io:format("Return key was pressed in window~n")
+        end,
+    event_loop(Win).