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:% ^# \* H1 c1 j1 V; L
Name = (WCHAR *) L"Poke";. @0 a( i4 G; k s
- [7 b% L; _( X( G- H hr = m_pDisp->GetIDsOfNames (: ?& Y3 `) s; p2 O, u
IID_NULL, // reserved 1 R; P1 R$ x7 K; O &Name, // Array of names to get IDs for . i* M4 ~# e4 Q: S t 1, // # of names in the array 4 z- J5 O# g" O- t3 G7 N& e( w LOCALE_SYSTEM_DEFAULT, // System locale) r" y% p3 q# ~! y& D5 x. n
&pokeID); // Array of IDs to fill on output * Q+ U4 m% t" h2 W/ Z . @; j7 `# _' h* F- A if (hr) 7 K, Y' s% J9 y& c {- `1 T1 M# B) P/ r6 D, y
MessageBox ("Get Poke Unsuccessful"); $ S% R* M$ ], d9 L$ @ return; 7 O7 B6 ~0 _$ p2 w } 7 Y- a) `& b; V( w/ _% H( t% ^! p q7 m1 [
/**************************传递数据给extend**************************************/& I% i$ ]# p( m- c/ n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# L- p. `9 b+ v: c/ w, a
, y2 g) e* g* e4 |/ M- l valueStr = SysAllocString((WCHAR *) L"1232"); - j' L2 q2 _) U/ m8 \) r& Q VariantInit(&pokeVariant[0]); / @' [) \2 ^; r# ~: M1 G pokeVariant[0].vt = VT_BSTR;1 q3 d* {: M; _0 |/ Y f; @
pokeVariant[0].bstrVal = valueStr;+ C- s k$ a+ x
. k. S$ j" l' c& r- K4 A% j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ Z$ P6 o3 V& [4 | `! J4 _0 O
VariantInit(&pokeVariant[1]); * k% [& m" W% O: V F+ C
pokeVariant[1].vt = VT_BSTR;) C9 U; l( ^) K; C9 R
pokeVariant[1].bstrVal = itemStr; ( b2 ^# ~9 ]0 W0 H; T' y1 _4 b' Y5 l& v1 X
topicStr = SysAllocString((WCHAR *) L"system"); & [- B) a" M+ _; u; F" q, D" R VariantInit(&pokeVariant[2]); " E( S) C4 e+ _( r9 S0 s J
pokeVariant[2].vt = VT_BSTR; $ q0 A% O! Y) ^( J5 x) n pokeVariant[2].bstrVal = topicStr; n2 E% \) L) l# Q5 c% c" }( e! ~! d/ k6 G
// Set the DISPPARAMS structure that holds the variant. 5 L% {) Q' s1 F, x) e/ o' P. c: j. \
dp.rgvarg = pokeVariant; - i! D, m$ A- {3 B dp.cArgs = 3; e! k: ^$ `- P8 p6 U3 Z/ O* V
dp.rgdispidNamedArgs = NULL;$ }0 Z7 W8 h0 l& N- U0 A6 n
dp.cNamedArgs = 0; 0 Y' G* s# l& J# X3 D ! N" G. T$ T$ i; ?0 f// Call IDispatch::Invoke()( M* Y I1 Y F: n
# O7 R5 F; v: T) D( j hr = m_pDisp->Invoke(5 o @2 G3 v5 ^3 L3 e( H
pokeID,3 B1 q) o4 A" S2 h. L+ {- o! F
IID_NULL, 2 h% L2 y! u0 v }' |0 i3 e LOCALE_SYSTEM_DEFAULT, 8 ~( A: J- i( u7 x. R DISPATCH_METHOD, / v$ k* q6 Q" Y &dp,1 i+ e. x5 G7 n$ h* N/ e2 S' Z
NULL,+ I8 a! Q% t6 v+ l3 D6 \" M
&ei,+ @/ A2 t" c. q# f9 M
&uiErr); , o2 h, m" y* d2 v 8 g o* f5 r, ?. E SysFreeString(topicStr); & z" p3 g& @: s' P- Z* b) a* ^; c SysFreeString(itemStr); 0 M( C8 M/ k& V SysFreeString(valueStr);! T* T0 F' l, I5 o. x
# {4 s, p* I0 O/ h& f
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???3 }$ K% x1 w4 I$ J6 b8 E0 K1 {; 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???? I5 D' H' H! N+ Y$ F5 t8 V- I 4 m# T0 P0 b( ]2 g( V$ {6 X, D * _3 g+ r0 E" G* R8 w6 ]- o2.这是request的程序 3 z% P# H. o* ?( F0 \1 Y// Request a value from Extend' a" S: T: u8 _9 Z6 R/ P
// 8 E$ ]4 N A4 V0 H// Initialize the variant that will hold the BSTR. Set the variant's ' p: h/ T( q* }1 l// type flag to indicate the fact that this variant holds a BSTR. Place the* {8 ?# @- z: K& A7 y( T$ E7 W0 v' E
// BSTR into the variant structure. $ T% T; G- V: `3 t$ a8 N$ o# l7 Q. E$ o5 z' ~- i9 q, d
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + K: y! E4 l, p; b5 e- _" \3 c. S " R$ w; o- E5 P- Z m
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " W- |# |# O% N% D/ k VariantInit(&requestVariant[0]); 1 T# T% ]0 p- A* A- M' a
requestVariant[0].vt = VT_BSTR;5 i* O2 M$ o$ X# [+ _8 q
requestVariant[0].bstrVal = itemStr; 0 P _9 P" |7 m9 U" I3 ` ( r% N5 R3 v& p B topicStr = SysAllocString((WCHAR *) L"system"); b q% |8 R& o# u0 _
VariantInit(&requestVariant[1]); ) e- D+ N& J8 P; F5 ^
requestVariant[1].vt = VT_BSTR;2 N8 Z- E2 v( P2 A! J
requestVariant[1].bstrVal = topicStr;0 v3 K; z' U% p8 N* h% |
' Z7 `2 N, ^* Y
// Set the DISPPARAMS structure that holds the variant. ' J6 o: Y+ Q' H6 j- T) ~, b# r$ ^ / Z8 S K/ H3 H; g/ I dp2.rgvarg = requestVariant;1 v0 X7 o, s! M+ ]7 U: m
dp2.cArgs = 2;5 W) h, ~8 a: {' k/ s: k
dp2.rgdispidNamedArgs = NULL; $ O4 a& J# C5 x& L4 o# f8 q5 X/ a dp2.cNamedArgs = 0; - p0 o( ^1 ?: x, p- E3 a4 n. M0 ^) p( l; B
var.vt = VT_EMPTY; 5 f& ]8 A8 N, y. C) w+ q$ c/ a
// Call IDispatch::Invoke()+ r& d% z2 w3 g
# c& Y0 K+ G6 w9 l hr = m_pDisp->Invoke() |& ]1 @, g- h8 Z" V
requestID,9 j$ f. e$ M# z7 b% C' a4 @& {; W
IID_NULL, 0 c! b6 a' J) ^$ @/ m LOCALE_SYSTEM_DEFAULT, / L' \6 q8 D! A4 N DISPATCH_METHOD,& G$ Y0 ?' d9 P) x R; K
&dp2,2 Y# y' ~; ^4 i; \
&var, ; D4 \# E$ G/ s& o) z( C" p8 i. l &ei,, J0 s/ D o6 z+ P, a
&uiErr); % p, ~& i3 x* E! {1 P& G" e5 C8 c. j/ u6 e: E
SysFreeString(topicStr);1 J: Y T5 s; j' F* G2 T
SysFreeString(itemStr);2 j8 k* g; Z8 O6 m. w1 u K5 n, T
请问该程序是获得extend里面的哪个值?5 F1 i( F5 {- y9 G5 \+ T) X
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????