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:" W3 P( {6 q% o% ?
Name = (WCHAR *) L"Poke";8 u; }0 v% Z0 B1 u4 I
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hr = m_pDisp->GetIDsOfNames ( 0 E3 o1 d# }* z7 Y+ d: `: G IID_NULL, // reserved ( X5 @, e7 L- a &Name, // Array of names to get IDs for 9 p, n& ` ~ t 1, // # of names in the array 4 L% X7 m& ?' `9 x/ ~( O LOCALE_SYSTEM_DEFAULT, // System locale 4 k; e' k+ Z( b8 B0 n( Y &pokeID); // Array of IDs to fill on output" Z3 b& b; ?1 \! @$ o5 [
; L/ b7 R' Y! ?( Q/ B9 k if (hr): O) s# W- \( p( u3 L
{ ! H% z: F, z& Z) B7 Q MessageBox ("Get Poke Unsuccessful");# B7 @: A( }- E- Y; j* j* B3 R& m
return;% Y, ]4 Y' o" U0 U& L6 g8 A
} ( O6 d1 E9 B5 }5 H! J; e5 `6 D7 ] - E* ^2 ]9 K' a" J9 ^% ~: \/**************************传递数据给extend**************************************/6 M1 C; ?, Q1 p# B( [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / Y. L4 Z% y% r' E( n% n- U, m/ w/ n - V6 v' z9 b; I X8 t; z
valueStr = SysAllocString((WCHAR *) L"1232"); ) [/ r5 u+ f$ w VariantInit(&pokeVariant[0]); ) `. x! x# R/ @7 W: \# a pokeVariant[0].vt = VT_BSTR;* B0 D4 c( j7 L6 q' X3 N. t' ~
pokeVariant[0].bstrVal = valueStr;6 { R# E% d. @2 }6 |! T4 r; J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 R. I2 Z v$ G+ w6 `
VariantInit(&pokeVariant[1]); " h5 Q3 O% r* E) O* s pokeVariant[1].vt = VT_BSTR;- R# O9 y/ G. l2 T$ ]
pokeVariant[1].bstrVal = itemStr; / I, x' t, Q4 p$ x- L% x* X8 O3 o" N: b [7 Z3 ]
topicStr = SysAllocString((WCHAR *) L"system"); : i5 T- ]/ K; J: S0 G( D. y1 Z VariantInit(&pokeVariant[2]); ) l/ W9 S5 L6 A5 S8 i% W/ ] pokeVariant[2].vt = VT_BSTR; + u) a2 l8 h( R8 P7 u pokeVariant[2].bstrVal = topicStr; ; T4 V! v1 Y' a; a4 h# \% h8 n3 Z. b
// Set the DISPPARAMS structure that holds the variant. ! h3 y2 E8 i1 y0 g4 C6 i' T) }' y5 z) f7 f& P, v; X3 t
dp.rgvarg = pokeVariant; ; G3 `& ] c3 r- ~ dp.cArgs = 3; 0 s1 D, q$ ` C H dp.rgdispidNamedArgs = NULL; 9 {+ x& p5 G' `& j5 b dp.cNamedArgs = 0;% b/ n( n3 ~3 E$ U0 G
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// Call IDispatch::Invoke()8 a* m, G7 |1 o) n- @
9 Q% O8 l( p7 T; h hr = m_pDisp->Invoke( 0 A9 G1 A5 c6 f. s1 _& a6 ^ pokeID,# S& `6 J+ ]3 l2 P
IID_NULL,& `9 v7 P7 V9 W5 r
LOCALE_SYSTEM_DEFAULT,# S& J, N' h3 i% I& n; K6 O
DISPATCH_METHOD, : s' \6 ?- g2 A &dp, 5 s1 ~0 c( C$ r: G. V NULL, 9 `; v; G- h& B* q/ ~! r- C5 F &ei,9 B( E m1 x4 M0 u
&uiErr); 9 P) z/ d, E( _: \: E. S" d9 E" v0 z/ A* N4 C
SysFreeString(topicStr); 1 L4 |" t) K0 f7 G SysFreeString(itemStr);/ G+ w& |/ n* H
SysFreeString(valueStr);6 J9 `8 y- W( e5 Y, @& j
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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???$ [, O# D; B) k5 W$ J( v* b
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????. ?, M ^3 @9 Q" O
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2.这是request的程序/ ^4 q [* ?' |/ d0 Y+ ?0 T4 |1 D
// Request a value from Extend ; S, N; C3 }1 B; {5 H// 9 x; `' {. N; f, T# l( U! D// Initialize the variant that will hold the BSTR. Set the variant's# \- `' i: X( q2 M$ w0 t
// type flag to indicate the fact that this variant holds a BSTR. Place the# b# e& O' h. g' r/ M
// BSTR into the variant structure.; H9 F' u, d g8 N
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ i. h' F0 `3 i" Z% `( k
1 z; ~7 ^( A9 P1 N itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " ?8 w. h2 \* \" Z VariantInit(&requestVariant[0]); ! K5 F' w8 `, m2 w# u( l
requestVariant[0].vt = VT_BSTR;6 V6 t) f: L$ P# Z3 x$ J& H
requestVariant[0].bstrVal = itemStr;: R) _! O1 Y5 U4 M+ z5 O9 z$ C' \
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topicStr = SysAllocString((WCHAR *) L"system"); ' L" C' e7 b) v. l VariantInit(&requestVariant[1]); 9 l7 M% h; D* g/ [4 h# Z/ z' K9 N requestVariant[1].vt = VT_BSTR; / N% D. D. z6 q- n requestVariant[1].bstrVal = topicStr;7 V' T3 h6 J" w! Q
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// Set the DISPPARAMS structure that holds the variant. 3 ~" J" K% u3 w8 y9 N( a& G1 f0 L+ S+ X0 P; K* t; g
dp2.rgvarg = requestVariant; " _9 ], t1 a/ x( e6 H dp2.cArgs = 2;+ f- o$ D2 j) A5 g, N( Z& U( X
dp2.rgdispidNamedArgs = NULL;! H% ~& S3 O+ P* V: d
dp2.cNamedArgs = 0; 3 {2 d9 `+ i+ o }7 Z i" ^0 E5 o3 o; q+ h, C var.vt = VT_EMPTY; . E& {# Y. Y) j2 w- Z9 z! Z- L ' q- q. ~+ \9 {! v// Call IDispatch::Invoke() 6 w/ d, m8 v" a" d# a6 n. x- P+ p3 G- S8 u- i1 `( }
hr = m_pDisp->Invoke( / o. g# e; L. h! [7 w requestID, / l2 \2 M. ~3 g: t/ \ IID_NULL,% C+ B& V0 |+ n1 E' }( w4 Y4 J
LOCALE_SYSTEM_DEFAULT,# b- D ^* F0 x5 Z# j" C. {
DISPATCH_METHOD, ! W/ m3 M d# I* |" v$ ?. ?' S &dp2, 4 ?- l8 N. s! Q1 a) Y &var,8 A# R Q' {3 z/ k" p
&ei," E3 J/ C8 J& V7 v' a1 n- x
&uiErr); 6 O+ s7 D/ e ]: ^3 V3 V w- i Y" S; m/ [1 u
SysFreeString(topicStr);1 @' F }6 F: [3 B; _8 q/ _
SysFreeString(itemStr);( t6 p+ [8 d8 a" Y
请问该程序是获得extend里面的哪个值? # T: }8 F& u# S, K5 W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????