From 523d303e2ab6a35845cd7ae07821d6aa0b14965c Mon Sep 17 00:00:00 2001
From: Jan Breuer <jan.breuer@jaybee.cz>
Date: 周一, 21 10月 2013 17:16:21 +0800
Subject: [PATCH] Add example to ParamChoice

---
 examples/common/scpi-def.c |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/examples/common/scpi-def.c b/examples/common/scpi-def.c
index 485cd85..492ba8b 100644
--- a/examples/common/scpi-def.c
+++ b/examples/common/scpi-def.c
@@ -89,6 +89,30 @@
     return SCPI_RES_OK;
 }
 
+
+const char * trigger_source[] = {
+    "BUS",
+    "IMMediate",
+    "EXTernal",
+    NULL /* termination of option list */
+};
+
+
+scpi_result_t TEST_ChoiceQ(scpi_t * context) {
+
+    size_t param;
+    
+    if (!SCPI_ParamChoice(context, trigger_source, &param, true)) {
+        return SCPI_RES_ERR;
+    }
+    
+    fprintf(stderr, "\tP1=%s (%u)\r\n", trigger_source[param], param);
+    
+    SCPI_ResultInt(context, param);
+
+    return SCPI_RES_OK;
+}
+
 static const scpi_command_t scpi_commands[] = {
     /* IEEE Mandated Commands (SCPI std V1999.0 4.1.1) */
     { .pattern = "*CLS", .callback = SCPI_CoreCls,},
@@ -139,6 +163,8 @@
     
     {.pattern = "SYSTem:COMMunication:TCPIP:CONTROL?", .callback = SCPI_SystemCommTcpipControlQ,},
 
+    {.pattern = "TEST:CHOice?", .callback = TEST_ChoiceQ,},
+
     SCPI_CMD_LIST_END
 };
 

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