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ITypeLib::GetDocumentation (Compact 2013)

3/26/2014

This method retrieves the library's documentation string, the complete Help file name and path, and the context identifier for the library Help topic.

Syntax

HRESULT GetDocumentation( 
  int index, 
  BSTR FAR* pBstrName, 
  BSTR FAR* pBstrDocString, 
  unsigned long FAR* pdwHelpContext, 
  BSTR FAR* pBstrHelpFile 
); 

Parameters

  • index
    [in] Index of the type description whose documentation is to be returned. I If index is1, then the documentation for the library itself is returned.
  • pBstrName
    [out] Returns a BSTR that contains the name of the specified item. If the caller does not need the item name, then pBstrName can be NULL.
  • pBstrDocString
    [out] Returns a BSTR that contains the documentation string for the specified item. If the caller does not need the documentation string, then pBstrDocString can be NULL.
  • pdwHelpContext
    [out] Returns a pointer to the Help context identifier associated with the specified item. If the caller does not need the Help context identifier, then pdwHelpContext can be NULL.
  • pBstrHelpFile
    [out] Returns a pointer to a BSTR that contains the fully qualified name of the Help file. If the caller does not need the Help file name, then pBstrHelpFile can be NULL.

Return Value

The following table shows the return values for this function.

Value

Description

S_OK

Success.

STG_E_INSUFFICIENTMEMORY

Out of memory.

E_INVALIDARG

One or more of the parameters is invalid.

TYPE_E_IOERROR

The function could not write to the file.

TYPE_E_INVDATAREAD

The function could not read from the file.

TYPE_E_UNSUPFORMAT

The type library has an older format.

TYPE_E_INVALIDSTATE

The type library could not be opened.

TYPE_E_ELEMENTNOTFOUND

The element was not found.

Remarks

The caller should free the BSTR parameters pBstrName, pBstrDocString, and pBstrHelpFile.

Example

for (i = 0; i < utypeinfoCount; i++)
{
CHECKRESULT(ptlib->GetDocumentation(i, &bstrName, NULL, NULL, NULL));
.
.
.
SysFreeString(bstrName);
}

Requirements

Header

oaidl.h,
oaidl.idl

Library

oleaut32.lib,
uuid.lib

See Also

Reference

ITypeLib
BSTR