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: }+ m1 m5 d" N( ^2 v IName = (WCHAR *) L"Poke";+ M7 a6 O x* ?! _$ C
8 N" X; X' h# d. U1 m3 p6 U hr = m_pDisp->GetIDsOfNames ( . G9 |9 U, y% J6 ?* k2 h g* V3 | IID_NULL, // reserved7 j& f8 N8 n; B2 H; y
&Name, // Array of names to get IDs for I8 L h; K) b! Q& Z2 J. H8 ?9 q
1, // # of names in the array ' n, r: ?. l8 _6 t LOCALE_SYSTEM_DEFAULT, // System locale- V$ ?2 J/ }7 l$ l1 \
&pokeID); // Array of IDs to fill on output 7 { P! U+ T* Z# u3 d; C9 g; ^$ \. _ e0 e$ `% R( w' k0 Y' c) \2 o3 _
if (hr) - {8 a0 y+ Y/ U4 g# P { 4 T8 `$ k" r: B MessageBox ("Get Poke Unsuccessful");3 [+ W9 A; `, J }2 m: k+ ^
return; 1 X' a& O6 p1 q, j- U } 3 P; }9 H# Q% d3 I, R1 a' p! _& n# G4 H
/**************************传递数据给extend**************************************/ 5 Z% a+ V" b: \1 ^' w7 ` pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( P1 d- }; L3 z4 p! A' H . K% }/ T$ ?6 g- }; b# G
valueStr = SysAllocString((WCHAR *) L"1232"); 2 m3 p* i, m# e& }8 O: C' I/ u VariantInit(&pokeVariant[0]); ! Q5 F9 W( O9 w( y7 B l
pokeVariant[0].vt = VT_BSTR; 8 o& W* Y6 O$ D& W `! V pokeVariant[0].bstrVal = valueStr;/ W9 a ~: U; j! v5 L
. }" l# ] p0 P% l J7 w" D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # }$ h6 o' K4 P& n' l VariantInit(&pokeVariant[1]); 6 o+ B( v* o$ |) D" j pokeVariant[1].vt = VT_BSTR; / ]$ R* g# ~& c' P) z; G B pokeVariant[1].bstrVal = itemStr;7 G0 g% J; _9 X2 R! f# n: z
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topicStr = SysAllocString((WCHAR *) L"system");3 v5 ]6 ]% ?# ~) w& s) E
VariantInit(&pokeVariant[2]); ; N2 g" S3 v- @+ _1 r0 f7 I' J pokeVariant[2].vt = VT_BSTR;! f, S ]8 |' _! z: T) [, A
pokeVariant[2].bstrVal = topicStr; . m1 N2 V0 R+ W# a2 n/ M ; B8 J, |/ J. @' U) g6 i/ ]. h// Set the DISPPARAMS structure that holds the variant.: I4 H1 d9 u7 X
5 t( y" S5 G( U3 z* R dp.rgvarg = pokeVariant; . W3 m5 n* ~0 N. ~8 d+ y dp.cArgs = 3;- R5 ]4 b- n. x! ~
dp.rgdispidNamedArgs = NULL; , _% u9 I9 M9 L dp.cNamedArgs = 0;# _8 V$ z' S. A( s7 H6 M- C% {
. j9 b( x0 [5 m: E; A2 r// Call IDispatch::Invoke(); H0 q3 {' ^5 F8 P
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hr = m_pDisp->Invoke(9 n. @, t* `! Z6 J {3 n
pokeID, - w$ `- m9 k5 M L d! F/ ?: i IID_NULL, & Y% }$ m/ E5 b) V+ d% M3 x LOCALE_SYSTEM_DEFAULT, . ~6 \: [8 Z7 `! Q, J3 [ DISPATCH_METHOD,! l1 z) ^4 d" {. E
&dp, ( ^ Q! D9 f7 w. W8 Y NULL,! F: f6 e T7 q4 P/ `2 f# ^
&ei,9 o2 b2 _! ^7 H7 J- h
&uiErr);0 }& q* P7 w* |9 H/ A
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SysFreeString(topicStr); / [3 e* y5 ~# i- n SysFreeString(itemStr);3 _* R0 O& F# w+ k7 }' K4 I) ^, _
SysFreeString(valueStr);1 s$ p0 c* J- U% y- @
+ {$ h5 a) C$ p- D4 y& p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???- B4 U7 t" O3 T& Q
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????4 R8 _3 q2 W+ g4 Y% V) h, N V
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2.这是request的程序 e$ \: {& u1 ]+ Q5 c9 B3 e" W// Request a value from Extend/ l9 [8 z& b9 r$ ~, Z& i
// ; Y- W1 L* Q) u# D0 l9 }' p1 H3 L' s// Initialize the variant that will hold the BSTR. Set the variant's3 m" ]( _1 `6 l# Q- u. [
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 I4 O i/ G& ~ r7 U* O- [// BSTR into the variant structure.& u0 S% N( p( {7 r; c
+ U# Q5 C6 L/ C n1 }+ K requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# M& R& h: J: ~! g! a% f# Q0 o
0 A5 W# z* [* n itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 F9 l# z/ u7 G$ W& z VariantInit(&requestVariant[0]); ; \1 _. q( }7 w$ |% @ requestVariant[0].vt = VT_BSTR;2 o" P2 \& J6 v5 v
requestVariant[0].bstrVal = itemStr; + Q- [/ s* Y2 ^# e: R; f3 {2 l 0 }7 P3 h. t: h- \ topicStr = SysAllocString((WCHAR *) L"system"); 7 ^# a" A/ c; r; d3 Q v VariantInit(&requestVariant[1]); " c& \, F- x6 U requestVariant[1].vt = VT_BSTR;7 p6 t4 @, j/ J+ Q$ S) W; B& g* {
requestVariant[1].bstrVal = topicStr; + `0 o3 ^ h2 t A( E* h/ @4 l) {5 ^% p7 `+ n$ ?7 i# X
// Set the DISPPARAMS structure that holds the variant. # a* W- B, M1 x # \. h2 ~+ F1 s( Q) { dp2.rgvarg = requestVariant; / X# b, Y: X/ ^; {: S3 u! U- n/ U2 J+ J7 X dp2.cArgs = 2;5 f" Y, a& h. m. l0 E8 f
dp2.rgdispidNamedArgs = NULL;0 x; w8 K% [, {2 ?8 p! A
dp2.cNamedArgs = 0; + M9 ^5 c$ e2 `8 G& {1 | D2 L* R/ Q1 K+ N5 Z8 `' V( v
var.vt = VT_EMPTY; : ^) h( ^7 D, H5 f 3 |9 g. a s1 S& E: R& F. S// Call IDispatch::Invoke()0 V7 y+ y8 O& w
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hr = m_pDisp->Invoke( * E- T" F3 U; O; x3 b) Y, W6 @ requestID, - S% d* P- |2 H/ A- \ IID_NULL," p1 k3 q$ ]8 n: e% j8 K
LOCALE_SYSTEM_DEFAULT, G/ T0 r; m9 ~- ~& O" U DISPATCH_METHOD,3 k8 c2 ~! V: u `9 J9 z9 Y% Y
&dp2,6 c' M, y7 J7 n [. E
&var,& p: \+ ~ B6 u# a0 y `- A' X/ x
&ei,, {# q5 k& ~+ I9 P% P/ g
&uiErr); 3 Y' m' h( t- Z% A( _4 ~) }! `; f8 L. T# w M
SysFreeString(topicStr);# L9 y, s4 i8 {* A
SysFreeString(itemStr);4 L3 M8 Q% T0 i+ ]- L. [' v; y
请问该程序是获得extend里面的哪个值? , \6 D! Y# s" c* 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????