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 v: N. D" H, V) D
Name = (WCHAR *) L"Poke";* Y% o$ E3 B) A2 `; P
# I1 y: [, I: M7 ^# |7 H. X hr = m_pDisp->GetIDsOfNames ($ p2 Z* x% n( P3 o+ x
IID_NULL, // reserved( v( r9 i( S. @! U
&Name, // Array of names to get IDs for . I# n! `$ M% b 1, // # of names in the array( N5 a1 _& o: F
LOCALE_SYSTEM_DEFAULT, // System locale . o4 d2 Q1 K K# k+ u S0 s$ R &pokeID); // Array of IDs to fill on output ; [, [# ?$ W" i) j" y 3 g/ }; v7 I/ I8 b if (hr) 1 w: M# H4 Y: Z' f; E$ D& v$ l {' I* E1 I+ ~5 b n: y; f \
MessageBox ("Get Poke Unsuccessful"); " R; W9 a3 H# @; d return; * d, B1 [6 P& R9 K: q( @- b }. U" N( v3 ?8 n$ ]
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/**************************传递数据给extend**************************************/ F& Q0 ?4 p/ o
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- h0 l. u1 J, o5 ?- B5 T! A8 h6 h
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valueStr = SysAllocString((WCHAR *) L"1232");$ v6 n% v0 ^0 e7 k: ]
VariantInit(&pokeVariant[0]); * _) O( t: O l w. o9 C pokeVariant[0].vt = VT_BSTR;8 h0 X! Y8 {. C7 p! B
pokeVariant[0].bstrVal = valueStr; , l6 @) D: T' u$ S5 e 7 F2 _) |0 [. E% | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 B0 l. `4 P$ D' Q+ W1 v VariantInit(&pokeVariant[1]); % A4 f6 r5 r; F' H4 p# H
pokeVariant[1].vt = VT_BSTR;3 ~4 P8 O" I, p! a* V! E
pokeVariant[1].bstrVal = itemStr;2 k! k: ^# ~* T8 t$ m/ l
- l; {1 @: M, |) `# t topicStr = SysAllocString((WCHAR *) L"system");4 W$ ?5 k) b* N" D- R6 Q Q8 W
VariantInit(&pokeVariant[2]); 8 {4 C% u: @, h D: ^+ X
pokeVariant[2].vt = VT_BSTR; % ]- ]! Q9 [ ^8 ~7 L pokeVariant[2].bstrVal = topicStr;3 T- T ]& W o4 `
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// Set the DISPPARAMS structure that holds the variant. 9 M" P8 W* E' h, m, `. g: a7 u3 H* c* g( K& ^( y5 P* E
dp.rgvarg = pokeVariant;. }$ @- B7 M- K7 R6 A- L: ~
dp.cArgs = 3; ) ~8 v- ^1 U, o7 c, ~ dp.rgdispidNamedArgs = NULL; & j$ Q% X' L# d7 t1 D$ j& Z" U dp.cNamedArgs = 0; 4 i; X0 \. r3 e& |" `" K / D; w) _$ E/ |& z// Call IDispatch::Invoke()3 D4 b/ F! h% v5 C0 U: {' Z
4 L% D3 m0 Z( r# W hr = m_pDisp->Invoke(1 [4 x6 m$ b* F) S, ]
pokeID, 6 s0 c9 d; o5 _; e! z3 q. s IID_NULL,- b {9 o5 k9 Z* c9 j; ]" e: |* z' l
LOCALE_SYSTEM_DEFAULT,' W9 P+ W, _1 }
DISPATCH_METHOD,/ E, o! R0 h0 ^" L+ m; S
&dp,8 l: w. B6 P9 [- c) [
NULL,% d% k- _2 M* x7 w8 j
&ei,9 ~( s/ S; M4 @) X0 t5 b" j
&uiErr);# a- {2 z1 X ?) K, d
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SysFreeString(topicStr);& S4 [( f! i7 s3 s- V1 I( ^6 B
SysFreeString(itemStr);; s& ~0 L2 A2 i3 q4 n' D9 [) Z. y
SysFreeString(valueStr);, g4 |% W! N# V
, h& b: v* @8 p4 l0 N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??? % h/ J. H# Q9 y* U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???? 0 \( p; m9 s, E" x# c; C( P9 g Y- y, a * d6 S" d. ~/ E$ n3 |+ f5 E# A: q
2.这是request的程序 / u9 R3 K/ W5 o2 j/ u \// Request a value from Extend # c! `! Y1 f2 n// - {1 n5 E$ ?0 X- w// Initialize the variant that will hold the BSTR. Set the variant's5 A5 U2 \. z1 w2 f6 k; d1 n9 X
// type flag to indicate the fact that this variant holds a BSTR. Place the/ b8 @' D8 ?+ a# G7 l5 }
// BSTR into the variant structure. 4 J$ l/ Y/ ^ Q3 m2 y: j , c% h* T0 u& R# | requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 P$ F5 H' s/ [% x! {& a " }% L9 K7 m' T8 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! R, Q) X. I; _$ q- l VariantInit(&requestVariant[0]); : \, N6 q' e" _: a requestVariant[0].vt = VT_BSTR;4 b2 r& b3 n9 k' q4 G8 Y0 J! I
requestVariant[0].bstrVal = itemStr;' J; Y! i/ ]. q- g9 o# h
" E2 t/ ?7 o" y4 \! G topicStr = SysAllocString((WCHAR *) L"system"); 5 J+ Z! \/ V8 E; r VariantInit(&requestVariant[1]); 1 `3 |; J Z4 _% ^/ _% G2 L' M; o- Q$ V
requestVariant[1].vt = VT_BSTR; ; x% K/ }/ B& `# r; v+ U3 \$ n requestVariant[1].bstrVal = topicStr; 3 l: ~- N% p2 J7 `6 | s8 d* }: `
// Set the DISPPARAMS structure that holds the variant.$ i, c7 A: V5 _3 D
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dp2.rgvarg = requestVariant; : |- v' j9 g) H0 W+ M dp2.cArgs = 2;! p( f# D" g5 U% W& c% o
dp2.rgdispidNamedArgs = NULL; 7 ?5 M) E% l8 d0 S! J dp2.cNamedArgs = 0; - e, i8 s; B: H8 r; X) }5 g ' @9 O6 D& ]* O var.vt = VT_EMPTY; C- z2 p8 B- ]. {0 H * {0 O, Z( q- k& \ N8 L1 l// Call IDispatch::Invoke() \: R8 C M; O0 ^0 o2 i& }
2 `( F% m7 b0 \6 v# D. `4 c hr = m_pDisp->Invoke(' w- g5 z1 m0 ^5 ?! _4 Q7 y0 ~
requestID, 0 T7 Y& Q5 {, p& l/ o IID_NULL, 5 f: `9 H) {' V9 \' a5 G LOCALE_SYSTEM_DEFAULT," X1 o5 c$ ^; E* E
DISPATCH_METHOD, 2 R! ]" c' r4 Q6 t2 j, X8 x5 o &dp2,2 f/ X/ |: o: b" G
&var, - s" \8 r4 z5 d# t0 Q' `( } &ei,4 U. C5 ?- t# U6 Y
&uiErr);- F/ l0 W) }0 {+ e# j
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SysFreeString(topicStr); . X; v" d. R% j; e+ q4 s9 }1 N SysFreeString(itemStr);( N$ f( |! p9 r5 A
请问该程序是获得extend里面的哪个值?5 n1 M5 q1 C& x( I3 r& 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????