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Calls a procedure in a dynamic link library or code resource. There are two syntax forms of this function. Use syntax 1 only with a previously registered code resource, which uses arguments from the REGISTER function. Use syntax 2a or 2b to simultaneously register and call a code resource.
Important This function is provided for advanced users only. If you use the CALL function incorrectly, you may cause errors that will require you to restart your computer. This function is only available from an Excel macro sheet.
Syntax 1
Used with REGISTER
CALL(register_id,argument1,...)
Syntax 2a
Used alone (in Microsoft Excel for Windows)
CALL(module_text,procedure,type_text,argument1,...)
Syntax 2b
Used alone (in Microsoft Excel for the Macintosh)
CALL(file_text,resource,type_text,argument1,...)
Register_id is the value returned by a previously executed REGISTER or REGISTER.ID function.
Argument1, ... are the arguments to be passed to the procedure.
Module_text is quoted text specifying the name of the dynamic link library (DLL) that contains the procedure in Microsoft Excel for Windows.
File_text is the name of the file that contains the code resource in Microsoft Excel for the Macintosh.
Procedure is text specifying the name of the function in the DLL in Microsoft Excel for Windows. You can also use the ordinal value of the function from the EXPORTS statement in the module-definition file (.DEF). The ordinal value must not be in the form of text.
Resource is the name of the code resource in Microsoft Excel for the Macintosh. You can also use the resource ID number. The resource ID number must not be in the form of text.
Type_text is text specifying the data type of the return value and the data types of all arguments to the DLL or code resource. The first letter of type_text specifies the return value. The codes you use for type_text are described in detail in Using the CALL and REGISTER Functions. For stand-alone DLLs or code resources (XLLs), you can omit this argument.
Example
Syntax 1 (32-Bit Microsoft Excel)
IN 32-bit Microsoft Excel for Windows, the following macro formula registers the GetTickCount function from 32-bit Microsoft Windows. GetTickCount returns the number of milliseconds that have elapsed since Microsoft Windows was started.
Syntax 1 (16-Bit Microsoft Excel)
In 16-bit Microsoft Excel for Windows, the following macro formula registers the GetTickCount function from 16-bit Microsoft Windows. GetTickCount returns the number of milliseconds that have elapsed since Microsoft Windows was started.
Example
Syntax 2a (32-Bit Microsoft Excel)
On a worksheet, you can use the following CALL formula (syntax 2a) to call the GetTickCount function:
Syntax 2a (16-Bit Microsoft Excel)
On a worksheet, you can use the following CALL formula (syntax 2a) to call the GetTickCount function:
Tip You can use optional arguments to the REGISTER function to assign a custom name to a function. This name will appear in the Insert Function dialog box, and you can call the function by using its custom name in a formula. For more information, see REGISTER.
Calls a procedure in a dynamic link library or code resource. There are two syntax forms of this function. Use syntax 1 only with a previously registered code resource, which uses arguments from the REGISTER function. Use syntax 2a or 2b to simultaneously register and call a code resource.
Important This function is provided for advanced users only. If you use the CALL function incorrectly, you may cause errors that will require you to restart your computer. This function is only available from an Excel macro sheet.
Syntax 1
Used with REGISTER
CALL(register_id,argument1,...)
Syntax 2a
Used alone (in Microsoft Excel for Windows)
CALL(module_text,procedure,type_text,argument1,...)
Syntax 2b
Used alone (in Microsoft Excel for the Macintosh)
CALL(file_text,resource,type_text,argument1,...)
Register_id is the value returned by a previously executed REGISTER or REGISTER.ID function.
Argument1, ... are the arguments to be passed to the procedure.
Module_text is quoted text specifying the name of the dynamic link library (DLL) that contains the procedure in Microsoft Excel for Windows.
File_text is the name of the file that contains the code resource in Microsoft Excel for the Macintosh.
Procedure is text specifying the name of the function in the DLL in Microsoft Excel for Windows. You can also use the ordinal value of the function from the EXPORTS statement in the module-definition file (.DEF). The ordinal value must not be in the form of text.
Resource is the name of the code resource in Microsoft Excel for the Macintosh. You can also use the resource ID number. The resource ID number must not be in the form of text.
Type_text is text specifying the data type of the return value and the data types of all arguments to the DLL or code resource. The first letter of type_text specifies the return value. The codes you use for type_text are described in detail in Using the CALL and REGISTER Functions. For stand-alone DLLs or code resources (XLLs), you can omit this argument.
Example
Syntax 1 (32-Bit Microsoft Excel)
IN 32-bit Microsoft Excel for Windows, the following macro formula registers the GetTickCount function from 32-bit Microsoft Windows. GetTickCount returns the number of milliseconds that have elapsed since Microsoft Windows was started.
REGISTER("Kernel32","GetTickCount","J")
Assuming that this REGISTER function is in cell A5, after your macro
registers GetTickCount, you can use the CALL function to return the number of
milliseconds that have elapsed:CALL(A5) Syntax 1 (16-Bit Microsoft Excel)
In 16-bit Microsoft Excel for Windows, the following macro formula registers the GetTickCount function from 16-bit Microsoft Windows. GetTickCount returns the number of milliseconds that have elapsed since Microsoft Windows was started.
REGISTER("User","GetTickCount","J")
Assuming that this REGISTER function is in cell A5, after your macro
registers GetTickCount, you can use the CALL function to return the number of
milliseconds that have elapsed:CALL(A5)
Example
Syntax 2a (32-Bit Microsoft Excel)
On a worksheet, you can use the following CALL formula (syntax 2a) to call the GetTickCount function:
CALL("Kernel32","GetTickCount","J!")
The ! in the type_text argument forces Microsoft Excel to recalculate the
CALL function every time the worksheet recalculates. This updates the elapsed
time whenever the worksheet recalculates.Syntax 2a (16-Bit Microsoft Excel)
On a worksheet, you can use the following CALL formula (syntax 2a) to call the GetTickCount function:
CALL("User","GetTickCount","J!")
The ! in the type_text argument forces Microsoft Excel to recalculate the
CALL function every time the worksheet recalculates. This updates the elapsed
time whenever the worksheet recalculates.Tip You can use optional arguments to the REGISTER function to assign a custom name to a function. This name will appear in the Insert Function dialog box, and you can call the function by using its custom name in a formula. For more information, see REGISTER.
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