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:6 P0 P$ S- k! K* u$ W
Name = (WCHAR *) L"Poke"; % _# W) u6 k" r5 j, b ' e- |' D! `$ c' A8 F
hr = m_pDisp->GetIDsOfNames (% S0 q- x$ c$ `6 \! F8 G% D
IID_NULL, // reserved3 x+ R4 |7 J8 f; L. w
&Name, // Array of names to get IDs for 8 h' D$ N7 B, O- w- b 1, // # of names in the array . ^3 J4 L0 {+ c' Z; P' D" i! C LOCALE_SYSTEM_DEFAULT, // System locale3 z8 C# D$ P1 E, N' e: O
&pokeID); // Array of IDs to fill on output 8 v6 M) E, H% @8 w! M5 u ' U" d2 P- ^6 r
if (hr) 7 v! T7 c% }4 k+ | U2 _7 j {0 Z5 {- _. [ F/ o+ H* O3 Z' i
MessageBox ("Get Poke Unsuccessful"); , A+ v5 d+ J5 P return; n* i! b2 Z! ~! N5 i
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/**************************传递数据给extend**************************************/; T3 h; Q0 x) ]
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 f2 e( W' z6 d% v , E# P- v6 L1 z: Q. U3 _, h
valueStr = SysAllocString((WCHAR *) L"1232"); , T" K2 y* s4 U- i8 @( F VariantInit(&pokeVariant[0]); $ R) D1 j6 J+ N0 m* f- Z5 G
pokeVariant[0].vt = VT_BSTR; ' v' s6 p0 T) b ` pokeVariant[0].bstrVal = valueStr; : s- B$ R6 R+ e1 y3 Q) k- m$ F/ O: O' i+ z3 w3 [* ?
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & M% e7 Y$ f( w* ?8 x, l VariantInit(&pokeVariant[1]); ; [9 Z$ V$ a5 y$ C- l. {7 F5 ]% M pokeVariant[1].vt = VT_BSTR;: z% d' g5 U, t l2 U( Q- G( T
pokeVariant[1].bstrVal = itemStr; 5 }$ c4 S/ G! ~" f" C; `/ [+ p- t, j
topicStr = SysAllocString((WCHAR *) L"system"); , k* ~% g8 o# J( T VariantInit(&pokeVariant[2]); 7 p' s4 a( H$ ^. U7 i
pokeVariant[2].vt = VT_BSTR;6 M3 b2 T" t/ o8 B- }3 R5 {9 M- |
pokeVariant[2].bstrVal = topicStr;) H: C) ?$ T2 R" j5 Q2 M! s c5 O
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// Set the DISPPARAMS structure that holds the variant.9 ~+ L1 H+ I6 @" J6 k/ H; v
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dp.rgvarg = pokeVariant; 2 ?; ^2 o) Q" E* J/ N dp.cArgs = 3;- r7 P3 I m9 t- R5 C
dp.rgdispidNamedArgs = NULL; 5 ?& t' P) ^- t9 Q* Q- j! r dp.cNamedArgs = 0; 9 V$ n( L/ s- c+ z8 e& V$ r& P 3 x5 k \8 }# D// Call IDispatch::Invoke() . X' y9 i, D- }! D T" Z$ P1 \9 [: Z" ]( @6 \/ ?
hr = m_pDisp->Invoke(! j P) ^* r# q9 Q* Z9 R k7 m: e
pokeID, + g3 t! N% D) Y) }) Z% N IID_NULL, ( f9 p2 c2 s0 s$ T9 B0 y) G LOCALE_SYSTEM_DEFAULT,6 [1 x- R7 _7 m8 w+ C0 D% n
DISPATCH_METHOD, % z9 ^. h# q4 R$ O! R+ g6 l &dp,$ P7 w$ N0 Y: ~1 } V2 Y
NULL, 9 Y6 q5 Y5 W1 | &ei,: P& i1 p8 Y0 i
&uiErr); 5 m- Z* s5 @( }9 b) f: L! L" @* o; T t: t
SysFreeString(topicStr); , L4 }+ ^4 h7 S: b* C; r SysFreeString(itemStr);/ B% ]: b" @" X; z
SysFreeString(valueStr); ' |6 C8 W( A4 r5 Q0 Q' A/ z0 d& z$ x
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???3 A \7 O9 a* c. k: L& O
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????- m9 b/ B! E. [8 q" U; G
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# H4 S2 l! [- ] S; p) g" u2.这是request的程序 ( {. _* \, V$ y' z1 X// Request a value from Extend 9 z) I7 j0 p: V+ D u// 9 `( M( d9 d& c2 S" D6 T// Initialize the variant that will hold the BSTR. Set the variant's4 E1 h n5 k5 S+ g1 e9 C9 `# F
// type flag to indicate the fact that this variant holds a BSTR. Place the # C4 y7 }: C, D; \3 g! Y// BSTR into the variant structure. z4 J9 s) A* D. U! c9 E # A) ?. ^ y6 O) K" ]" s- i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 q9 m, [* y( k2 ]: p0 M
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 y0 b' z8 f2 o" @
VariantInit(&requestVariant[0]); 6 I& ]: _7 [- M. K1 l7 @5 H
requestVariant[0].vt = VT_BSTR; 3 s& ]$ c& b A* L7 V8 B6 a6 l6 a4 G requestVariant[0].bstrVal = itemStr;$ j5 }" H0 M( B7 [+ }* t" I6 ^
( ]8 ~5 l# g0 l2 B5 Z5 x5 \% W. v4 N topicStr = SysAllocString((WCHAR *) L"system"); , v8 w- _' T7 h& O4 Q4 b6 n# \ VariantInit(&requestVariant[1]); 5 T3 ]3 `+ `8 R( I3 r5 p- h
requestVariant[1].vt = VT_BSTR;1 S" j @# `' [" P1 t/ P$ ^) _. n
requestVariant[1].bstrVal = topicStr; : L1 V7 _: W d8 V' H+ g - q8 |- f# Z* o0 {' y// Set the DISPPARAMS structure that holds the variant.1 [5 Q6 K+ M7 r* X
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dp2.rgvarg = requestVariant; 7 @& Q( S. X0 G4 P3 V5 l dp2.cArgs = 2;( Y( d& [% O8 l/ _2 u
dp2.rgdispidNamedArgs = NULL;* E; f" A9 T: j" Z
dp2.cNamedArgs = 0; * r2 ]7 p1 b/ b+ K ! H1 Y. b- z: ~7 A% T+ `( o1 q var.vt = VT_EMPTY;" l/ W6 V* R+ ]; y( d
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// Call IDispatch::Invoke()2 Q# N L J% c9 X' e3 ~
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hr = m_pDisp->Invoke(0 P7 ~1 k+ c f, R
requestID, : e$ I* X. N9 l' { IID_NULL,. C# i6 f7 V8 Q
LOCALE_SYSTEM_DEFAULT,) F. s5 k- S. ^
DISPATCH_METHOD, ; g- w/ C/ C. h7 N- i3 d) v0 | O &dp2,7 z8 C* S5 h* m! F' t
&var,# q- i# L5 F+ r3 ^0 U" q# p
&ei,9 l3 R s6 j: D6 ?6 ^; o" C
&uiErr); : R% [3 `/ E. U3 ^+ n , t% s- J$ @# R6 \ SysFreeString(topicStr);# W2 }3 b5 D: j2 u( L V
SysFreeString(itemStr);) }2 b( e/ N6 U K, }* g# H2 o
请问该程序是获得extend里面的哪个值?# K1 C* ?4 k- T+ G4 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????