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module

  • [アーティクル]

This statement defines a group of functions, typically a set of DLL entry points.

Syntax

[attributes]
module modulename {
   elementlist
};

attributes

The attributes uuid, version, helpstring, helpcontext, hidden, and dllname are accepted before a module statement. The dllname attribute is required. If uuidis omitted, the module is not uniquely specified in the system.

modulename

The name of the module.

elementlist

The list of constant definitions and function prototypes for each function in the DLL. Any number of function definitions can appear in the function list. A function in the function list has the following form:

[attributes] returntype [calling convention] funcname(params);
[attributes] const constanttype constname = constval;

Only the attributes helpstring and helpcontext are accepted for a const.

The following attributes are accepted on a function in a module: helpstring,helpcontext, string, entry, propget, propput, propputref, vararg. If vararg is specified, the last parameter must be a safe array of VARIANT type.

The optional calling convention can be one of __pascal/_pascal/pascal, __cdecl/_cdecl/cdecl, or __stdcall/_stdcall/stdcall. The calling convention can include up to two leading underscores.

The parameter list is a comma-delimited list.

[attributes] type paramname

Remarks

The type can be any previously declared type or built-in type, a pointer to any type, or a pointer to a built-in type. Attributes on parameters are in, out, and optional.

If optional is specified, it must only be specified on the right-most parameters, and the types of those parameters must be VARIANT.

The header file (.h) output for modules is a series of function prototypes. The module keyword and surrounding brackets are stripped from the header file output, but a comment (\\modulemodulename) is inserted before the prototypes. The keyword extern is inserted before the declarations.

Example

[uuid(D00BED00-CEDE-B1FF-F001-A100FF001ED),
   helpstring("This is not GDI.EXE"), helpcontext(190), dllname("MATH.DLL")] 
module somemodule{
   [helpstring("Color for the frame")] unsigned long const COLOR_FRAME 
      = 0xH80000006;
   [helpstring("Not a rectangle but a square"), entry(1)] pascal double square([in] double x);
};

ODL Statements and Directives