mIRC

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$com calls a member of an open COM connection with the specified method and parameter, or returns informations about a currently opened COM or returns the value of the specified variable name

Synopsis

$com(name,member,method,type1,value1,...,typeN,valueN) - calls a member of an open COM connection with the specified method and parameters, returns 1 if the call succeeds, 0 = fail.

$com(name/N,varname) - returns the value of the specified variable name

$com(name/N) - returns the name of the Nth open COM connection or the name of that connection if it's open

Paramters

• name/N - The name of the connection or the Nth connection
• varname - The name of a variable previously saved
• member - The name of the function of the object
• method - A combination of the following value added together:

Value	Method
1	DISPATCH_METHOD - Call a member of an object
2	DISPATCH_PROPERTYGET - Return a value
3	(1+2) Call a member and return a value *
4	DISPATCH_PROPERTYPUT - Set a property
5	(1+4) Set a property with a member call *
6	(2+4) Set a property and return a value *
7	(1+2+4) Set a property and return a value with a member call *
8	DISPATCH_PROPERTYPUTREF - Set a property by reference
9	(1+8) Set a property by reference with a member call *
10	(2+8) Set a property by reference and return a value *

• type1 - The variable type, can be:

Type	Description	Values
i1	single byte signed integer	0 to 225
ui1	single byte unsigned integer	0 to 255
i2	two byte signed integer	-32768 to 32767
ui2	two byte unsigned integer	0 to 65535
i4	four byte signed integer	+/- 2147483647
ui4	Holds unsigned 32-bit (4-byte) integers	0 through 4,294,967,295
int	integer	-2147483648 to 2147483647
uint	unsigned integer	0 to 4294967295
r4	real, 4-byte floating point number	1.17549435E-38 to 3.40282347E+38
r8	double real, 8-byte floating point number	2.2250738585072014E-308 - 1.7976931348623157E+308
cy	eight byte curreny number	-922337203685477.5625 to 922337203685477.5625
date	contains date and time, stored as an 8-byte floating-point number	+/-79,228,162,514,264,337,593,543,950,335
decimal	Holds signed 128-bit (16-byte) values representing 96-bit (12-byte) integer numbers.	+/-79,228,162,514,264,337,593,543,950,335
bool	contain any string or numeric representation.
bstr	null-terminated unicode character string value.	A string can contain from 0 to approximately 2 billion (2^31) Unicode characters.
variant	can contain string, date, time, boolean, or numeric values. When used, a data type must follow it: for example: variant int 5
dispatch	This data type indicates a pointer to an IDispatch interface on an OLE object (DBTYPE_IDISPATCH).
unknown	This data type indicates a pointer to an IUnknown interface on an OLE object (DBTYPE_IUNKNOWN).
error	This data type indicates a 32-bit error code (DBTYPE_ERROR)

You can pass a binary variable by prefixing the type of the variable with an '&' sign eg. $com(name,member,method,&bstr &binvar)

To make a variable by reference, postfix the data type with an asterisk and a variable name, for example: int* pIntOfBeer.

• value1 - the value assigned to the variable type

Properties

When only one parameter is passed to $com (name/N), you can use the following properties:

• .progid - returns the object name
• .result - returns the value returned by the COM object member call, you can save this result to a binary variable with $com(name/N,&binvar).result
• .error - returns the error value, if there were any error
• .errortext - returns the error description associated with the .error value
• argerr - returns the Nth argument that caused the error, if the error were due to an invalid variable type.
• .dispatch - returns the name of the dispatched pointer if it exist
• .unknown - returns the name of the unknown pointer if it exist

In the case of retrieving an unknown pointer, mIRC will extend it to a dispatch pointer if it can, allowing you to call it directly via $com().

Compatibility

Added: mIRC v5.9
Added on: 26 Apr 2001
Note: Unless otherwise stated, this was the date of original functionality.
Further enhancements may have been made in later versions.

See Also

• $comval
• $comerr
• /comopen
• /comclose