我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据: ) [! C% P4 S3 ?1 a. p7 iName = (WCHAR *) L"Poke"; * j2 o! a! ?! d6 ]6 d + L8 D% w& F! y0 L hr = m_pDisp->GetIDsOfNames (' W0 v. ]+ Q- d! S; \% B: f; L( n
IID_NULL, // reserved 5 V( h/ S. q6 ?7 F &Name, // Array of names to get IDs for . N s7 n) i) @( _ 1, // # of names in the array 4 @) x; n( L& q LOCALE_SYSTEM_DEFAULT, // System locale / L: I0 r% q0 Z &pokeID); // Array of IDs to fill on output: D8 Y/ J. W: \
5 C2 o5 U3 m0 {0 f2 ^; J
if (hr) / @/ J3 v9 J( X" B { 7 m* P; W4 g# f! ]3 ^* l MessageBox ("Get Poke Unsuccessful");6 i! N3 s. g* D# } I: g S
return; . i% G5 Z$ O# ^ H/ L2 U' B }4 m9 p- v0 k3 H* q! A! Q, x
; }9 | M* K) V" c+ L/**************************传递数据给extend**************************************/ {) i: }+ F, u2 Z0 C" r! t, H2 V1 H pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: _0 _0 X) ~. D+ e+ v# l" K2 Y: V
9 Z o+ d2 y! N7 n/ I" s3 K
valueStr = SysAllocString((WCHAR *) L"1232");; k+ E* O4 l& v/ _. M0 X
VariantInit(&pokeVariant[0]); 7 {# x% s5 o+ M: F% \! b3 B1 W pokeVariant[0].vt = VT_BSTR;8 T: E/ J1 a% }! Z
pokeVariant[0].bstrVal = valueStr; ' J1 F/ \# a6 ]0 m2 U : D' y* g4 m9 c8 \5 o% i3 w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& o3 S: |- _. P" w
VariantInit(&pokeVariant[1]); " \1 V+ B b8 E" s
pokeVariant[1].vt = VT_BSTR;( a! m( T9 n. b# h, X) Z1 f
pokeVariant[1].bstrVal = itemStr;% q& {7 n, f0 |* ~: S _
- E, L% `# k+ ^9 a3 l1 v, m
topicStr = SysAllocString((WCHAR *) L"system"); ' V6 I* B8 t7 \2 N VariantInit(&pokeVariant[2]); r1 J" y# @1 Q0 Q
pokeVariant[2].vt = VT_BSTR;8 Y" [8 u4 n, m' P
pokeVariant[2].bstrVal = topicStr; : T; [4 H8 L2 X * W8 T6 @! D/ D) h// Set the DISPPARAMS structure that holds the variant.: k% ~/ G7 R7 ]
, g5 O% B+ ~) J' t* N E" B" a1 r" ~: K
dp.rgvarg = pokeVariant;( O" i( ?" e* F6 U; B: |
dp.cArgs = 3; # l; ]" [' f% X- z/ \7 A8 Z dp.rgdispidNamedArgs = NULL; / U$ j3 ]! S* ?9 b; D% o5 { dp.cNamedArgs = 0; ' E$ \' {' G% I$ y; V/ D" w' ?1 Z; v/ E4 w
// Call IDispatch::Invoke() 6 L% ~6 s2 f+ I {! {2 J5 l) d8 ? / ~% Z6 T# P# T' r hr = m_pDisp->Invoke(4 J$ L1 n2 P* F9 ]$ o4 B
pokeID,8 G- w: Q* t8 y1 l+ K
IID_NULL, D; b) P; w+ x! _! [6 {
LOCALE_SYSTEM_DEFAULT,7 q; \5 _( h! a; B1 e9 p7 i. @! A6 V
DISPATCH_METHOD,2 v! g! p4 m, o+ a" F: R! f1 l
&dp, # P8 y# t; w( ~2 y' R% p @ NULL, & S! `) v7 M4 h &ei, * [: ]8 `" Y. }/ `+ Z8 l &uiErr); 5 r! n3 Z% L& Y! u/ ^2 ?6 f( S: N5 k. v5 @0 J1 K" N
SysFreeString(topicStr);8 B" |8 V+ k5 ]0 ^1 x
SysFreeString(itemStr); : a9 P1 ~; L' C, o SysFreeString(valueStr);7 S& _3 f' Z2 g
' t* Q5 j$ Z1 x4 _ f; _$ I9 m
现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? ( ]* N4 w+ o( {5 n4 q8 w# m此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现????# V4 T! p$ g* |; z6 T( V
. R3 m, F, B+ J, N8 {6 b8 v# P' E: V, ^; n
2.这是request的程序6 D6 y1 p* y8 p: b; F
// Request a value from Extend 1 N$ o: P5 U! ~0 `//$ S- J2 I+ J( j) q% J: M; a
// Initialize the variant that will hold the BSTR. Set the variant's/ M( I% h, ]8 w& z
// type flag to indicate the fact that this variant holds a BSTR. Place the$ }! [- w9 f% M0 A, p4 p4 ^+ P( A
// BSTR into the variant structure./ G9 l6 T7 X! I
" a% K: V+ h$ K8 `5 q8 s- f
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 U' Q2 Q0 Q; c1 m& \3 Z
* _' T6 x: `4 Q3 B* B$ y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + G( l0 k6 G* [ VariantInit(&requestVariant[0]); ! q A) D) e8 O# p
requestVariant[0].vt = VT_BSTR;. j4 Q' f, r4 q6 R. v& e
requestVariant[0].bstrVal = itemStr;9 L* [ C! f- \& [
/ _; U' e- z0 @2 P: g0 M6 t$ j topicStr = SysAllocString((WCHAR *) L"system"); 8 ^# s7 u8 `) q" H% [' p VariantInit(&requestVariant[1]); , s% P4 j! v6 R7 U; n requestVariant[1].vt = VT_BSTR; - O4 W. T0 s( A) L& t- O8 P# F5 _ requestVariant[1].bstrVal = topicStr; 3 h5 _0 i' m& d& h3 {8 S ; T* ?0 d) ]6 L" Z3 t) M: |// Set the DISPPARAMS structure that holds the variant.5 A" t. w1 ^% L- k0 u' P4 @- Q
/ R' `5 @5 a) I. Q* T
dp2.rgvarg = requestVariant; 0 p2 Z4 ~0 l, ] D# e dp2.cArgs = 2;. t6 p/ j d/ ~, R" c- ?
dp2.rgdispidNamedArgs = NULL; - @& M% H: A' i& O# M dp2.cNamedArgs = 0;! `! |) ^/ g3 Y* V- @8 G0 a1 h D, X
2 n5 T, T" H6 O
var.vt = VT_EMPTY; # _' H5 p) H" Y$ k* [ 7 b) S( y/ o: \ X: w/ i7 y// Call IDispatch::Invoke() / m4 M+ J, p3 R! i/ ^' q 4 ^9 x6 `" e. r3 n hr = m_pDisp->Invoke($ @; g# _$ t4 R
requestID,* k, q4 ~$ t/ f7 M; ~+ W% `4 \
IID_NULL,& z, Q0 H$ n$ U. S' Q
LOCALE_SYSTEM_DEFAULT, $ C' K3 X) z6 Q+ O4 T DISPATCH_METHOD,7 h" O: b* c6 L* V; x. P) N
&dp2, L' Q4 y2 @) J
&var, 5 `+ M( B& G s3 L) h& O6 y, P4 B% M &ei,$ x( _/ }" U' W. T% z' ?
&uiErr);6 S+ b* ^# l+ z
" ?: `& L/ ?7 M& c) O SysFreeString(topicStr);1 N m. }2 W; {' \
SysFreeString(itemStr);; U" h7 F4 U1 |/ k3 d* @
请问该程序是获得extend里面的哪个值? . s7 j ^+ a. } w0 Y a p如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????