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/IDLOUT (Name MIDL Output Files)

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Syntax

/IDLOUT:[path]filename

Argument

path
An absolute or relative path specification. By specifying a path, you affect only the location of an .idl file; all other files are placed in the project directory.

filename
Specifies the name of the .idl file created by the MIDL compiler. No file extension is assumed; specify *filename.idl if you want an .idl extension. When expanded, the fully qualified filename must not exceed MAX_PATH (260 characters).

Remarks

The /IDLOUT option specifies the name and extension of the .idl file.

The MIDL compiler is called by the MSVC linker when linking projects that have the module attribute.

/IDLOUT also specifies the file names of the other output files associated with the MIDL compiler:

  • filename.tlb
  • filename_p.c
  • filename_i.c
  • filename.h

filename is the parameter that you pass to /IDLOUT. If /TLBOUT is specified, the .tlb file will get its name from /TLBOUT filename.

If you specify neither /IDLOUT nor /TLBOUT, the linker will create vc70.tlb, vc70.idl, vc70_p.c, vc70_i.c, and vc70.h.

To set this linker option in the Visual Studio development environment

  1. Open the project's Property Pages dialog box. For details, see Set C++ compiler and build properties in Visual Studio.
  2. Select the Configuration Properties > Linker > Embedded IDL property page.
  3. Modify the Merge IDL Base File Name property.

To set this linker option programmatically

See also

MSVC linker reference
MSVC Linker Options
/IGNOREIDL (Don't Process Attributes into MIDL)
/MIDL (Specify MIDL Command Line Options)
Building an Attributed Program