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:# |8 W. U. d: K* c. v
Name = (WCHAR *) L"Poke";/ M& F7 @! B( g' c% ?; d1 K
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hr = m_pDisp->GetIDsOfNames ( ; K6 @. J+ N% k0 E' {* C( r$ J1 x IID_NULL, // reserved! J' T: y2 S$ p) P& ?& O. A
&Name, // Array of names to get IDs for( c) v( A3 N: O& Q- V7 _ Q; W% D
1, // # of names in the array+ z8 ?1 O# R3 |9 [
LOCALE_SYSTEM_DEFAULT, // System locale 3 Q- ^ I2 u2 O' F0 k& ~) D &pokeID); // Array of IDs to fill on output% u* e5 g( C1 ?; q0 f) S4 m9 f
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if (hr) . C2 h+ a5 I) I, m! w) M {' D" P/ W0 Z* W* E+ I
MessageBox ("Get Poke Unsuccessful");/ g$ v/ W% |) s% o2 [( D
return; z/ u. j! }8 D/ b4 ^- s
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/**************************传递数据给extend**************************************/% S3 }; O0 c' Y K, S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; K. Y z, v. \! T- q0 }5 e7 ? 0 P5 V- m# c: A. r# `9 c) B; B
valueStr = SysAllocString((WCHAR *) L"1232"); 8 }) r' `- O/ h: g0 t6 D6 v& B g$ I VariantInit(&pokeVariant[0]); % ?7 s7 f7 A" p/ C, W' f0 ~8 S pokeVariant[0].vt = VT_BSTR;9 Z7 { r$ Y7 Y. q: S2 |
pokeVariant[0].bstrVal = valueStr; 6 f, b$ k6 Z' Z, k 0 X' `5 ~! R# M: u4 _2 G1 e) v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 s6 [3 m# O; @4 l5 V0 N VariantInit(&pokeVariant[1]); 3 }' Y0 ^2 T+ x pokeVariant[1].vt = VT_BSTR; * E4 ~ y, h0 o- [0 B2 I/ {$ m pokeVariant[1].bstrVal = itemStr; ) k% |3 O: u+ X$ m; o7 O % r9 \ F, X6 y( r3 n+ P1 A$ [ topicStr = SysAllocString((WCHAR *) L"system");# Y3 R2 t$ l- f' ]; L. I
VariantInit(&pokeVariant[2]); ^9 y" r7 O8 \
pokeVariant[2].vt = VT_BSTR; 0 ?/ d7 s K8 v+ U' @+ ~! C pokeVariant[2].bstrVal = topicStr; : y! \/ f2 M: }8 Q! A, g 0 u; A" Z. |, Y% {2 Q/ B// Set the DISPPARAMS structure that holds the variant. - H5 \6 \% P' p% K, v3 h; Z) U# Q/ W
dp.rgvarg = pokeVariant; 8 @9 {0 `2 G3 a/ A9 [ dp.cArgs = 3;2 M& ^5 |3 R( t, }. g D2 K" I( s
dp.rgdispidNamedArgs = NULL;. i! W1 n9 y9 V4 Y& p8 U# S7 Y
dp.cNamedArgs = 0; % `3 c9 Q* H4 {( M: D3 b* Q# _5 Q2 _! Q' b$ R$ J( @
// Call IDispatch::Invoke()" n) m2 z a$ P& M5 c+ q& j
9 F/ @& R) S9 k) t hr = m_pDisp->Invoke(0 J5 S0 L) b& u6 S' Y9 S' t
pokeID, / H( G. B0 h% |6 U" C IID_NULL, , y, m4 k) o& N0 C! X& L' l LOCALE_SYSTEM_DEFAULT,/ p4 h: [$ D% p0 J5 D
DISPATCH_METHOD,% f2 ^+ \ b5 R6 Q6 H
&dp, , Y3 d9 V7 [2 d/ h4 p NULL, ! h0 _" E- N! A; Q, b9 T6 n &ei," d! ~3 P! F4 \, k3 b. U# c1 m$ T
&uiErr);4 j4 [5 k9 [9 \8 B! {" q# j
8 M: W9 J0 n6 _& Q SysFreeString(topicStr); 6 ~6 H9 P4 s* e( M" t( e SysFreeString(itemStr);" Y2 b8 y5 i P
SysFreeString(valueStr); ! H9 U: P5 z5 c1 S( h2 o& B5 c( q) 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???/ _$ t" y2 R) f& }/ t
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????+ D7 o+ u4 j+ G% b4 d
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2.这是request的程序 8 f0 u: e& o! l0 B8 W- @// Request a value from Extend! P( C6 P" V* {& q
// 0 o0 [+ N) |. k3 S" t3 x// Initialize the variant that will hold the BSTR. Set the variant's5 Z7 ?% F S# z% v
// type flag to indicate the fact that this variant holds a BSTR. Place the9 J R* t* F2 m) B
// BSTR into the variant structure. , Y, T1 M9 i" b! w" _0 Z' x4 Y, o7 s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 z/ h7 J) r. B 1 Y. b5 z+ p8 \2 ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ F) {- F/ J7 O" R7 V/ } VariantInit(&requestVariant[0]); ) W% g3 [4 z# y* N& v! {2 o1 E requestVariant[0].vt = VT_BSTR; : L$ w9 F' R1 Y; o requestVariant[0].bstrVal = itemStr; ]* e* o3 d; J' P) }
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topicStr = SysAllocString((WCHAR *) L"system");) P$ [3 D+ E/ t' W. Y6 {
VariantInit(&requestVariant[1]); - f& X+ g9 \' Y
requestVariant[1].vt = VT_BSTR; 3 o$ p$ Q8 m; l X requestVariant[1].bstrVal = topicStr;5 r; U! x( e% T& W5 M! ?! @; _" B
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// Set the DISPPARAMS structure that holds the variant.7 Y( u! q. X% A- s2 I
1 R) `8 Z" u8 x! \. w dp2.rgvarg = requestVariant;' S9 D. G) h4 c: E
dp2.cArgs = 2; 3 ^" @; m e5 W* z3 O6 z dp2.rgdispidNamedArgs = NULL; ; y. }6 K; G! \8 b dp2.cNamedArgs = 0;# B) Z. ]3 t% k+ U) k, F3 }' D, c
& n/ k1 X5 ?3 O0 B! y! Z2 V var.vt = VT_EMPTY; , v3 M" J$ t9 ^+ r& Y- ?9 w* I8 X7 d, W/ d' m+ Y4 [
// Call IDispatch::Invoke() 7 y5 K# ~* y* j2 B0 S- e/ l6 S/ w. z _
hr = m_pDisp->Invoke(; P0 q5 \9 N: J" ~1 o1 P) Q2 K
requestID,2 J+ @$ C. A2 o; D7 f8 y& O
IID_NULL, / ~8 B& d C! K+ K: _6 d) J) ` LOCALE_SYSTEM_DEFAULT, 6 ~9 _5 L" h/ E6 n DISPATCH_METHOD,8 q7 o9 x, s. f1 w* T
&dp2,* k% V. K4 d K# g# Y( ~0 C( U6 X
&var, 9 c# _/ _% {1 c) i2 e &ei,# n% l" o9 B& _, Q
&uiErr); $ \8 C% e) c+ K" S( k) K1 e7 r " a9 Q% S; M7 n1 m' h7 R7 t SysFreeString(topicStr);3 f& E& _; z- m- P
SysFreeString(itemStr); y( b8 ]7 n7 R" v, X5 y请问该程序是获得extend里面的哪个值? 5 V9 n. J* a& f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????