LoadRunner COM Script
Here is a sample script generated by VuGen against a login to the sample COM flight application:
Action()
{
{
int int_var1 = lrc_int("100A");
int int_var2 = lrc_int("A100");
lr_output_message("int 100A=%d, A100=%d",
int_var1,
int_var2);
}
{
uhyper uhyper_var1 = lrc_uhyper("650000");
}
{
// Create a BSTR which may include nulls:
BSTR bstr0 = lrc_BSTR1("abc\x00def\x00\x00ghi", 12);
// Create a BSTR which does not include nulls:
BSTR bstr1 = lrc_BSTR("abc\x00def\x00\x00ghi");
BSTR bstr2 = lrc_get_bstr_sub(bstr1, 7);
lrc_print_bstr(bstr0); /* prints "abc\x00def\x00\x00ghi" with nulls */
lr_output_message("BSTR Length=%d, First 7=%s (cut off by terminator)",
lrc_get_bstr_length(bstr0),
lrc_get_bstr_sub(bstr0, 7));
}
{
// Convert ASCII string "true" into a Boolean variant:
VARIANT_BOOL true_var = lrc_bool("true");
VARIANT_BOOL false_var = lrc_bool("false");
// Create an empty variant:
VARIANT empty_var = lrc_variant_empty();
VARIANT null_var = lrc_variant_null();
// Create a new variant containing an existing variant:
VARIANT var0 = lrc_variant_short("53");
VARIANT var1 = lrc_variant_variant_by_ref(&var0);
VARIANT var2 = lrc_variant_BSTR("HELLO");
// Retrieve the GUID of the Istudent interface named object
// VuGen to retrieve identifiers needed for retrieving interface identifiers and PROGIDs of COM objects to be used in COM communications:
GUID pClsid = lrc_GUID("student.student.1");
// Fill a byte array with strings of characters:
ByteArray var;
var = Create3DByteArray(0, 2, 0, 3, 0, 4);
Fill3DByteArray(var, 0, 0, "abcd", 4);
Fill3DByteArray(var, 0, 1, "efgh", 4);
Fill3DByteArray(var, 0, 2, "ijkl", 4);
Fill3DByteArray(var, 1, 0, "mnop", 4);
Fill3DByteArray(var, 1, 1, "qrst", 4);
Fill3DByteArray(var, 1, 2, "uvwx", 4);
// Save variant:
lrc_save_VARIANT("pvar0",var0);
lrc_save_VARIANT("pvar1",var1);
lrc_print_variant(var2);
// Example: Variant of type: BSTR ,with value: HELLO
}
return 0;
}
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Enterprise Application Development
A Detailed Comparison of CORBA, DCOM and Java/RMI by Gopalan Suresh Raj
takes an in-depth look at these technologies and provides specific code examples for each.
The Microsoft Way:
ADO,
COM,
DAO,
DCOM,
MDAC,
ODBC,
OLEDB,
RDO
Professional Dcom Programming; Richard T. Grimes
Take the Brainbench certification test
If you want to display more than 20 of these counters, see Mercury problem ID 26871 to change the ini file.
