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:" h) z, e# }, G# R" P5 B! Y
Name = (WCHAR *) L"Poke"; 8 F t+ h3 q3 L0 l f, i 1 d; ^4 V/ y2 ]; O7 g' T4 v. q hr = m_pDisp->GetIDsOfNames (* g3 \" O4 {6 c: S! W
IID_NULL, // reserved * Z4 O5 i& L' b# B &Name, // Array of names to get IDs for 7 _* F* Q1 t0 W; G2 K 1, // # of names in the array 4 F# k3 v) l' K @3 {& Q4 s+ ]' S LOCALE_SYSTEM_DEFAULT, // System locale % k; ^* a$ V" y: L4 S; c1 X0 m &pokeID); // Array of IDs to fill on output . z0 m8 R. Z* `! ]# u; K * z( O" n5 v- S
if (hr)( E7 m$ T$ A% V- B1 q6 [
{ . j9 q* O! X: E7 [ I MessageBox ("Get Poke Unsuccessful");/ q% D' P9 x3 ~/ ?1 N# e5 }) m& E. s
return;3 }7 f5 d0 K6 S4 w p
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3 `) Z, N* t2 v/**************************传递数据给extend**************************************/ + |& K5 d, @8 u/ a6 o; x, P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' w- W2 X8 c z3 b* E 4 c0 N, }7 [7 |& F- L( c
valueStr = SysAllocString((WCHAR *) L"1232"); - [7 M+ t+ h- l V8 j VariantInit(&pokeVariant[0]); 7 o n! O. G8 ~& U* J$ M' f
pokeVariant[0].vt = VT_BSTR; 1 E6 E1 R/ B9 \3 Z" w/ Z( y+ ` pokeVariant[0].bstrVal = valueStr; / C% c+ }% I" `9 l! ]" M1 a! C3 @1 Q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' b1 w$ T, U- P7 M5 [" S6 F, O VariantInit(&pokeVariant[1]); 6 K: O4 Z6 D7 M
pokeVariant[1].vt = VT_BSTR; ; f4 c" V9 u9 P* ~ pokeVariant[1].bstrVal = itemStr;/ L& @- X. @9 z9 n
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topicStr = SysAllocString((WCHAR *) L"system"); / D0 b; m8 B& U' u7 w VariantInit(&pokeVariant[2]); & o- K3 V# ?. j7 p5 f& \' `' ]
pokeVariant[2].vt = VT_BSTR; ( W+ U0 V" y# k pokeVariant[2].bstrVal = topicStr; " v2 q \8 N9 M4 h& X# J& H0 b, e! h
// Set the DISPPARAMS structure that holds the variant. 3 {* h& w: Q1 O- j" S) q' j 1 w+ V; Y- k1 e7 a1 l dp.rgvarg = pokeVariant;& w6 }+ \6 o4 S) ^
dp.cArgs = 3; ( a7 D( E/ {( `9 I9 Y) v# u dp.rgdispidNamedArgs = NULL; 9 \& U, j1 B" [+ ]* q* `6 H) N1 h dp.cNamedArgs = 0;! N" f) i6 k* r( h
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// Call IDispatch::Invoke() ( A$ L/ N4 W- }4 }8 b: ]. C2 ^' m+ s: a8 h' {! h
hr = m_pDisp->Invoke(% x# J2 [8 T6 ?- [. x3 b; u+ v( J
pokeID, 6 d8 Z8 q3 b7 F1 {8 @- g Z8 s IID_NULL, 0 `& }$ f# m* a LOCALE_SYSTEM_DEFAULT, $ T+ a+ a" k% L1 z7 h7 f6 l DISPATCH_METHOD,$ M5 g/ Q* k" b/ i
&dp,9 j8 @- z4 o A
NULL,+ Q2 k0 f( T5 M/ ~% P& g! N6 G
&ei, $ ~% Q) A) {4 c2 T. F) ~ &uiErr); 2 H) b+ m" U# S9 ~7 t" j' U0 M! U; y' a
SysFreeString(topicStr); 5 s# G6 ~0 \: i+ N SysFreeString(itemStr);' w& r8 n" Z7 f ?5 E
SysFreeString(valueStr); % l* N) } S' v a! G; s' e' A ' } C; c3 u N, ] c9 [& o6 o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???' x; f7 j* K1 G0 n
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????9 V6 ^1 e% u& Y; {
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2.这是request的程序 " B! q% v* x0 ^* W6 m/ ~; u# B* _6 k7 g// Request a value from Extend) o% X% B* D7 ~8 W" x' @) n4 ` ~
// ; T" c% R! H5 ~0 i$ Z- G// Initialize the variant that will hold the BSTR. Set the variant's7 q! \+ i* A2 C; D- i4 F6 p4 z2 h! T$ y
// type flag to indicate the fact that this variant holds a BSTR. Place the" V, t2 p2 R/ x% l& V8 W; N6 N
// BSTR into the variant structure.: N: I- ?$ E, O' L
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' |7 d+ J: o/ v! m- o + r0 }$ W% D/ H: U+ d3 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. y# m5 \$ T3 c& |6 T7 ]# N
VariantInit(&requestVariant[0]); " D5 r& p2 [- {" q a requestVariant[0].vt = VT_BSTR; & ]) ]. O; j; `1 f: f$ V, o requestVariant[0].bstrVal = itemStr; 2 d' ~! w$ Z9 x2 ?& ^2 V $ O* Y1 w( P; i J7 @ topicStr = SysAllocString((WCHAR *) L"system"); - `5 |$ C; p' p' g VariantInit(&requestVariant[1]); $ F6 G0 C( X( y) A- ?& Q. P: d, _ requestVariant[1].vt = VT_BSTR;+ S E( o! v( {# `+ ~. g; a
requestVariant[1].bstrVal = topicStr; 3 K5 E) E% T' o# W9 \9 L! X3 f v" E. j
// Set the DISPPARAMS structure that holds the variant. ' H- B# S, d: _. o$ B% [& U- u. K W/ I) h5 {- n
dp2.rgvarg = requestVariant; 1 v. t! v0 `# Q( Z dp2.cArgs = 2;0 ~7 h. p/ c4 w$ @# ~( G" Y
dp2.rgdispidNamedArgs = NULL; 6 A# r! j& X; @ dp2.cNamedArgs = 0;4 O, T6 `3 K/ E1 P% `
+ y+ f% ^3 k% ?4 c4 |8 y3 h var.vt = VT_EMPTY; # k9 ?' R2 r$ _9 x* E3 S; F0 U$ M d; z* G
// Call IDispatch::Invoke() % e9 A' L/ E0 [- D7 ?. p: ~- ? 2 h: p7 @7 m; Z$ y! ^ hr = m_pDisp->Invoke( 9 S4 f7 c1 g) n. X7 h) e requestID, $ O+ C2 J. Y3 U$ O5 } IID_NULL,. n' w' G4 U2 N
LOCALE_SYSTEM_DEFAULT, 8 C* @! t" [7 [" e# O! S; F0 a) I d DISPATCH_METHOD,- }" R. x2 b* S" L. L: m/ K. c
&dp2, 8 r( U, i' d( [2 R. b4 D &var,* G3 k+ S4 ~- l; ~$ N: j" k
&ei,7 [5 K7 ]7 [3 j/ \; M* \1 W
&uiErr);# d$ y9 E% q( @4 T
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SysFreeString(topicStr);3 O, K" O% d- D3 C5 G# D
SysFreeString(itemStr); 6 \8 U, ^) s0 p. H8 X: ]请问该程序是获得extend里面的哪个值? + F1 j8 Z! c5 _ V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????