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: 2 l. k" C/ a! m1 q& _2 YName = (WCHAR *) L"Poke"; Y: c5 V7 B. s : a- W$ A) F; E7 I; H8 O
hr = m_pDisp->GetIDsOfNames ( - L- h* }- K+ {& p! E# O8 J IID_NULL, // reserved4 d0 {) X; S6 M$ J
&Name, // Array of names to get IDs for 1 ~- G8 @4 U: {* A) a 1, // # of names in the array8 _% H$ [, \7 P
LOCALE_SYSTEM_DEFAULT, // System locale) w/ U' e- m6 S! |$ h1 y
&pokeID); // Array of IDs to fill on output " w9 T: u6 g7 |( k # L: _+ i7 N. {2 a& u: t if (hr)1 R1 u5 A3 B7 |& f+ y' G9 r
{ + N4 E& `5 ?( G" H: T6 n MessageBox ("Get Poke Unsuccessful");/ d5 \" U/ I2 c# b1 F0 F# B
return; % r6 ~4 Z' u" F6 x) { } ( v( I( D/ k3 L: j b $ v' l! H9 k. s$ I, J8 N0 ~' h @/**************************传递数据给extend**************************************/+ H! u% s$ Q4 Q, i/ w; s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ^0 _; r. g) @) |+ d
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valueStr = SysAllocString((WCHAR *) L"1232");& t* o. W$ n: i$ w! B4 i
VariantInit(&pokeVariant[0]); # B4 k9 z: s6 O) |" o
pokeVariant[0].vt = VT_BSTR; 9 b/ j& f. T7 E5 B: ]/ i P) E pokeVariant[0].bstrVal = valueStr;& y+ I, n' n( h5 x6 h7 [- m W/ h" g/ M
9 r; M+ p+ p% Y5 B: ^" p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , t# `) i' d( q8 u! D( b VariantInit(&pokeVariant[1]); ( q, a( |8 k+ c pokeVariant[1].vt = VT_BSTR;! U7 v7 ~% q8 q
pokeVariant[1].bstrVal = itemStr; ; F# l) G/ c6 y* O3 e* W ; f: b- T; c+ Y3 c topicStr = SysAllocString((WCHAR *) L"system");8 |2 A2 \! {7 D$ z7 @7 a
VariantInit(&pokeVariant[2]); 1 W( z% g, Y: W: A0 p) `) Y6 v
pokeVariant[2].vt = VT_BSTR;8 y4 N* C* z" i. l8 C. T+ \0 m
pokeVariant[2].bstrVal = topicStr; 6 B0 \0 W* M& ?. R # f* g h* i" o// Set the DISPPARAMS structure that holds the variant. 9 i0 g3 A7 Q7 W) d Q* B! k4 r* D4 q% | dp.rgvarg = pokeVariant;6 T! ^& f& T% y. m
dp.cArgs = 3; 8 ^$ W4 x# U3 A dp.rgdispidNamedArgs = NULL;# G% M1 M4 B8 z
dp.cNamedArgs = 0; 7 |/ O% h, {7 M 6 W/ G( K0 E3 t! D0 q// Call IDispatch::Invoke() 3 ~4 h- r2 }# v9 @% M& x) j7 G \9 U& A' U6 o
hr = m_pDisp->Invoke(: g2 H3 O3 J- f _" \, |4 |
pokeID,' a+ ~+ D/ o0 K& y" n: B
IID_NULL,; c% a4 P2 ?9 q% r, r6 S
LOCALE_SYSTEM_DEFAULT, ( C) U- m+ f. ]- J: ] DISPATCH_METHOD,7 }# Z! I4 F8 F, t$ k6 k
&dp, % _4 H# [% D& G: _ NULL, 4 Y6 m$ Y5 `3 S* J9 W& x &ei, 7 g+ V; q4 I+ q6 U9 u &uiErr);9 E( f+ i9 K$ j" K3 G: K N& N
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SysFreeString(topicStr);6 g( | s9 W" e( p; g& ]) H
SysFreeString(itemStr);9 l+ ?5 O% A/ F( p& G( }
SysFreeString(valueStr); ; v9 q+ D) u5 r$ l2 C/ f . Q; J. D6 J1 x, j, C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???# v- R# K9 X8 X7 r- V0 y$ O1 H2 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????. v) j; s! S B- r) [+ H: }& Q* F
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! D/ r0 w+ K% i) i+ f+ a1 T2.这是request的程序 - J% E0 n' f' b& ` |6 `3 [7 @// Request a value from Extend & z4 O! e* B) s8 `// * x" R* @+ X. c, w( C6 j- P4 I: T// Initialize the variant that will hold the BSTR. Set the variant's* C l: ]6 ^/ N2 Z0 P {2 U
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 k k8 I7 A3 n. P) g# q// BSTR into the variant structure.8 x3 }6 z% c- b. x7 B
$ `. _ |# O8 u+ x* t requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 X, r1 Q, P2 K; r' }
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( G6 I: T( E" e: J% [' J, V
VariantInit(&requestVariant[0]); : R! o3 P3 Y' q: c! h W
requestVariant[0].vt = VT_BSTR;9 Y) A4 O; D7 i) n' D3 [! h1 x
requestVariant[0].bstrVal = itemStr;( u3 b t- G- X' f' Y
& T! S2 w; C+ E4 h* ^# Q$ Y5 a3 i& Z topicStr = SysAllocString((WCHAR *) L"system");2 [1 U& v% P' _' p
VariantInit(&requestVariant[1]); ' E8 y6 p x, Z* ]" R2 o: _ ^ requestVariant[1].vt = VT_BSTR; . V' D9 R$ U2 a4 Y# U" M9 S requestVariant[1].bstrVal = topicStr;: k$ [ Z' `9 y7 c. m+ Z: j
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// Set the DISPPARAMS structure that holds the variant.: m0 M( \- _& n: R8 L3 a7 i N
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dp2.rgvarg = requestVariant;6 f2 u( ?1 I# B t# d; v
dp2.cArgs = 2; 6 R* C8 P' f7 X9 @' Y: O dp2.rgdispidNamedArgs = NULL;" o$ F6 i" y- G* Y% c7 f
dp2.cNamedArgs = 0;" b# U5 p0 p6 T$ w, e: T: j
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var.vt = VT_EMPTY;; ^8 R1 V; f9 c+ d1 f$ v8 }# f+ a
8 a( v [( X4 @8 s- A, s$ h' u, T5 C! f( r// Call IDispatch::Invoke()8 h' u1 c' ^, m$ b7 h$ a, _
- a9 O2 C- Z6 a hr = m_pDisp->Invoke(; T" l) n! b2 W8 {
requestID, % t6 b1 E3 P8 d2 y6 k IID_NULL,9 d% ?/ p, N) C
LOCALE_SYSTEM_DEFAULT, ) J" U# K; d3 C8 x) q$ e DISPATCH_METHOD, 8 W% L( l6 i. p &dp2,4 f0 @& V; ^& [) d, K; b, i
&var, " Y& @" s# L. t' B1 R9 X- u2 Q% Y &ei,# N* `9 k, n8 |! \
&uiErr);- V0 B. v" Z1 {1 N
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SysFreeString(topicStr);$ [" h8 O$ U2 T- g# l5 n2 z
SysFreeString(itemStr);% \+ E/ \& |4 g0 E
请问该程序是获得extend里面的哪个值?- L& L" q* p8 H% S$ m! a! E5 h
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????