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:' ~; I4 P$ j: g9 B# O
Name = (WCHAR *) L"Poke";, K. b* x9 @+ T! }8 Q. `/ W
( g2 C5 i4 I" K! ^. F hr = m_pDisp->GetIDsOfNames (' c: p+ f8 c& p3 L s
IID_NULL, // reserved . }+ s4 _% ^0 W9 L5 ~6 o4 U1 c &Name, // Array of names to get IDs for 5 i' H! s- _$ {* ^8 t+ K 1, // # of names in the array' a/ @8 W. O/ p' l9 W* u
LOCALE_SYSTEM_DEFAULT, // System locale. U! N$ H+ X/ ?/ A4 C' |/ N
&pokeID); // Array of IDs to fill on output 5 b, }2 F2 l# \ . K* F# [" A! s; i. p( ? if (hr) - C: c; U, q* k$ A I { ) e9 G- e- d% k' M4 P: Z/ m MessageBox ("Get Poke Unsuccessful");/ F2 p; N' T3 U
return; 4 W( y# X' d& S5 k# Q' ^/ E }/ I) o" u$ a0 \- G- a5 F4 Y# E
( S( s; j$ W2 C1 B2 S e
/**************************传递数据给extend**************************************/0 f! g J& m. ^. N' e Y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 A! ], ?0 F8 q8 V
9 i2 {* @5 Q) {: |
valueStr = SysAllocString((WCHAR *) L"1232"); g9 t+ ]0 J; d3 a* Z5 E VariantInit(&pokeVariant[0]); ' B& \: V) R' }1 j/ z% E) ~" J2 Q
pokeVariant[0].vt = VT_BSTR;; }( W5 d5 ~- B$ m, a5 J: ?/ x
pokeVariant[0].bstrVal = valueStr; 8 ?6 P# b; S$ S" @ G8 ]8 H& { P5 ]& ? {; n, x6 e6 `
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ y9 a# K9 ~; X- q o0 D0 U
VariantInit(&pokeVariant[1]); * ~+ B& d) o9 l+ T' j! i% Z pokeVariant[1].vt = VT_BSTR; ; h4 Q& a' ]1 ?, O2 r+ [ pokeVariant[1].bstrVal = itemStr; ! T, ?# @2 w+ n% Q; \- N+ f& t % r0 ~; l4 f9 P topicStr = SysAllocString((WCHAR *) L"system"); + E4 P) t4 t% }. r VariantInit(&pokeVariant[2]); ' ]4 q( G1 o" F( ^0 Y" Q3 k pokeVariant[2].vt = VT_BSTR; : y8 r1 M+ }3 \3 | pokeVariant[2].bstrVal = topicStr; 8 }. @" O* |8 P% ~: T! F) ? 9 B8 u0 {8 R% r$ Y1 S0 ]// Set the DISPPARAMS structure that holds the variant. 7 H, Z6 g% B7 Y" U6 d( Y8 N / M4 R8 m5 t/ r( ~! x dp.rgvarg = pokeVariant; ) g3 B4 c; b3 Z dp.cArgs = 3; - ^! b6 ^. v6 }- u2 \( ?# X' D dp.rgdispidNamedArgs = NULL; 7 ^0 k( y/ I! Z, b# m3 e3 v dp.cNamedArgs = 0; ' L+ D' p/ {' p9 ]7 y+ B& J$ }* j, i! U ^. k X# P* T
// Call IDispatch::Invoke()* [, |2 `/ ?: e' d1 W& \0 d
& e$ A- |5 g( a2 {: V' K
hr = m_pDisp->Invoke(7 e0 Z& t; X" }
pokeID,; h. e4 r- r6 Q# J4 o+ D/ o1 c) @
IID_NULL,( I2 w5 s8 x$ c8 L( X
LOCALE_SYSTEM_DEFAULT, / k, J# M) }4 y: P DISPATCH_METHOD,( O- J) @6 K! a$ G# M/ |' k' e2 n
&dp,/ e3 h* N7 H# h, o- m$ j2 R J, l
NULL, ' n) X8 k# z# {" s. n &ei, " R* S6 d. X7 W &uiErr);) Q2 _* z5 r6 Z- b6 C' [
2 Q" ^* ]6 w8 Q' Q$ [2 `- |" K SysFreeString(topicStr); 3 z8 c- l: Q& U SysFreeString(itemStr);& E) h8 ^7 I# ?/ h* N n
SysFreeString(valueStr); , ?( _3 _/ ?" x4 ~9 d 3 l6 \/ R: m) O, e& B: A; v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??? w W4 x, G! |" R* F
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???? ( ?' g) e, E: [ # _$ u" s3 \5 k, O. a; p2 b0 ~( |! {* {- S
2.这是request的程序 / C9 M# ]& Q; [. f* D. e- \// Request a value from Extend 4 [/ p- u7 Y1 q7 t7 p/ N// s- m7 |3 r. J; `7 k// Initialize the variant that will hold the BSTR. Set the variant's ' [5 C4 _3 S, v/ y// type flag to indicate the fact that this variant holds a BSTR. Place the ( w* u+ Y T" W, n// BSTR into the variant structure. 7 ~5 I, H& O6 ?/ C1 ]% @ 7 i1 w, V; c. J& D% I requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 X. Q1 p% Z6 M( y8 j: M! e ! k( l' p7 \, f' V
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 }% f$ T' u9 J VariantInit(&requestVariant[0]); 2 f5 h7 X8 o# n; ~$ C requestVariant[0].vt = VT_BSTR; 4 n: R* Y; e) ~8 u R requestVariant[0].bstrVal = itemStr;4 K# c5 Z1 |4 N% w3 x
, y) y! u. v% C0 O# \2 w topicStr = SysAllocString((WCHAR *) L"system"); ; Z2 s& D3 U) N0 o% z VariantInit(&requestVariant[1]); 5 Q7 G' P, j3 n& N+ {0 n requestVariant[1].vt = VT_BSTR; ( s& B' U# Y3 w+ j6 O* F0 v3 C requestVariant[1].bstrVal = topicStr;& e5 ?9 @( j" ? t
: U, H7 q' z: M+ ]4 s& w" E, z8 o// Set the DISPPARAMS structure that holds the variant. 2 H* ?" T4 K( N" K' t, A* Y( M! h: O; }: T, _& r. z6 z
dp2.rgvarg = requestVariant;0 m$ D( b4 A8 `, i( M
dp2.cArgs = 2;% s. `. L$ N, D( \% Y- v
dp2.rgdispidNamedArgs = NULL;1 ~9 p5 ?7 Z; Y4 E1 V
dp2.cNamedArgs = 0;# ]! G) X9 k) R% h) {! V- T7 _3 Z
) l5 H4 h" E! p7 |! |) D( ]* s
var.vt = VT_EMPTY;, [$ w7 F/ l1 c
B) o7 {+ d3 \/ W; A; y// Call IDispatch::Invoke()& u2 [. L$ f* f; l- K; [
3 {, g; k5 @$ H, K hr = m_pDisp->Invoke( % n- E" n ?, G requestID,9 j: f3 A5 T! g5 T4 G
IID_NULL,7 f4 X. r. J5 v4 ^. x$ N
LOCALE_SYSTEM_DEFAULT, ; e: v$ D4 X6 {5 w/ g. S _ DISPATCH_METHOD, . k" C7 [* J$ @, {4 r; E &dp2,# L- d. R- M. h: E) z
&var, 4 n5 N# n6 f* @* s- _ &ei,+ B; O) f0 w0 I
&uiErr); ) f* z& ~# l4 T5 y V: w5 f0 `6 z ! P% [3 N; z# X/ w SysFreeString(topicStr);0 p% _4 w& N' q: o
SysFreeString(itemStr);- |: b6 q4 a- p% U- D' ^8 \
请问该程序是获得extend里面的哪个值? + X2 |6 O/ q5 X2 c$ X! j! b p5 Y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????