$com
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$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
Contents
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 openParamters
- 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().
Example
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.