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: ) ?5 u" m8 T3 L* A0 P; R. l3 z2 yName = (WCHAR *) L"Poke"; # }# ^6 w* T; h* e( }! n 8 Q! w. X% ]- Q# e
hr = m_pDisp->GetIDsOfNames (3 C4 m2 f5 l$ s& A7 p3 n+ H
IID_NULL, // reserved 2 g% `3 c' H2 X8 Q7 t- w2 }6 \/ ` &Name, // Array of names to get IDs for 8 r8 T; A- e7 b2 _) g; n 1, // # of names in the array $ K( C# N# k8 p7 _7 J, r) Y2 g LOCALE_SYSTEM_DEFAULT, // System locale X J- C& G9 s3 O$ X &pokeID); // Array of IDs to fill on output5 g0 L' y+ F k6 [- B& z
! E; {0 i4 n1 I9 ^: } if (hr) |# ~ k6 B2 d) C* {& | { % Y5 j# d/ g0 U, [ MessageBox ("Get Poke Unsuccessful");+ `7 V2 @& P- S3 L$ s4 [% _
return;1 m. k' z4 r$ {1 c- ?) x% y
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/**************************传递数据给extend**************************************/ % n3 B: u/ A) G; b- b6 B pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 ~: O2 X' x$ p9 W3 x4 q5 Q3 B4 [
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valueStr = SysAllocString((WCHAR *) L"1232"); 5 r/ ]* u% m" E5 D7 h% ^0 y& |. ^8 X. l VariantInit(&pokeVariant[0]); - x t7 m" p e- d
pokeVariant[0].vt = VT_BSTR; 3 K6 x$ C# r* E$ Z pokeVariant[0].bstrVal = valueStr; 5 Q6 ~9 [- y. m7 x1 S' b7 H % T# a/ h$ y0 _: T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 f& R6 ?; a( Y N8 b0 ~ VariantInit(&pokeVariant[1]); 3 K& Q4 a) S H! R3 h' o8 Y j
pokeVariant[1].vt = VT_BSTR; 8 D7 U/ D- T6 }! V! r! T1 U pokeVariant[1].bstrVal = itemStr; f6 C5 S/ e W$ P, e0 S
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topicStr = SysAllocString((WCHAR *) L"system"); # {1 S |% J: {" |# `( K6 k J VariantInit(&pokeVariant[2]); 8 Q0 v* z, h, e) z& O$ o2 _. ] pokeVariant[2].vt = VT_BSTR; 2 ~( c$ @9 |, i0 C# K* n( d, | pokeVariant[2].bstrVal = topicStr;/ W2 M' l/ ]: @6 R; B+ D5 T( K* ^
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// Set the DISPPARAMS structure that holds the variant.' {6 [+ p \5 ]0 w/ B7 e
/ _/ s' k1 s& j8 o; `& @9 } dp.rgvarg = pokeVariant; " J' V7 E+ ?' `' W) A* r% y dp.cArgs = 3; 8 u; j8 N. ]) A5 M dp.rgdispidNamedArgs = NULL;: Q5 a' L0 ]% ?2 v6 @) s
dp.cNamedArgs = 0; ) O( d3 p! }$ I' x! b% s* i/ x3 o i: t+ _( ~6 r. T
// Call IDispatch::Invoke() 9 o. S: R. @: o$ l4 U4 i" _3 A( B& m 0 [' g* i4 a; b& v @# H- w$ J% r( O hr = m_pDisp->Invoke(* |$ J% E" U3 ~4 e( ]
pokeID, ; Z1 ^8 K1 D3 }% X+ N2 O1 S IID_NULL,: A! |$ t$ o8 H- d
LOCALE_SYSTEM_DEFAULT,4 u5 h, O7 x, U& [3 F2 Z6 t
DISPATCH_METHOD, . R8 j" a- V* ]. k8 c &dp,3 _) P# K7 o- C+ N9 {6 G+ s
NULL,# w* t% P' D3 e
&ei,/ q; l( w, C9 T x8 a
&uiErr);9 w& S3 W9 z: w
; B, s7 E; E5 t7 ?6 P SysFreeString(topicStr); , i, n2 m* L9 O" i SysFreeString(itemStr); : B% L# E7 l) e7 C8 `: J L+ B SysFreeString(valueStr);/ c: Z `) O6 `
6 Y' m. a5 R3 V0 J* Q- s9 J+ a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???) _: K8 U; y" @6 H& R) Y; H6 s
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 [; v/ y3 m) P, o
0 V$ p" J+ {* W5 [ ! t/ x' v0 w; w2.这是request的程序" R9 ]4 N: c5 @6 }9 ^% F
// Request a value from Extend / n& ?+ K( K/ x+ z' G+ [# g// # }; z! k9 A5 b8 T5 N" ?# ]// Initialize the variant that will hold the BSTR. Set the variant's 4 R7 v7 H9 l4 \! y5 M3 g// type flag to indicate the fact that this variant holds a BSTR. Place the7 _6 F; {% J+ T) C
// BSTR into the variant structure.) A( Q j/ Q; X' S9 B" ?4 B1 O7 z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ s+ y- @1 V8 q8 {( J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( f/ c8 `4 u: t VariantInit(&requestVariant[0]); 2 Q7 o8 }* E& A9 H% U requestVariant[0].vt = VT_BSTR;5 {/ V. s% S0 z# j7 N; N8 P
requestVariant[0].bstrVal = itemStr;- k* i) `3 U$ t7 m$ D2 i1 c' H% L( ?* h
( P. u- T8 b/ G5 W) T# }' P topicStr = SysAllocString((WCHAR *) L"system"); . C/ k0 X; ~+ R$ e, M: a VariantInit(&requestVariant[1]); # C& \5 S7 d; n$ Q7 m* T1 c; H requestVariant[1].vt = VT_BSTR;- e0 {" @* s" J Y7 W' |
requestVariant[1].bstrVal = topicStr;8 z6 ?* C3 _' w7 s& o* K( O. p
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// Set the DISPPARAMS structure that holds the variant. . k: M4 q" Y' I! D! U* `- y; n5 w S. m, t: V
dp2.rgvarg = requestVariant;. a9 k4 t* U! n* q) p
dp2.cArgs = 2;$ A& q3 t' I1 N4 h
dp2.rgdispidNamedArgs = NULL;/ ~* u/ X9 K& }( R
dp2.cNamedArgs = 0;# J( N/ i0 \- E; `. o& }
' j/ L6 b; s: N. g' l, W var.vt = VT_EMPTY; % @- D9 Q- n- A: l$ F 2 Z& \) E) _9 l) M0 Z. B// Call IDispatch::Invoke()( k0 u4 E/ @' S) }) s
! a* b( ^, a; g) Q( m hr = m_pDisp->Invoke( 3 I. q3 m2 Z3 `& ?. l; J requestID,' ?9 @' C% T" ^. c" ?
IID_NULL,5 W7 i9 M/ _. e, r: Z0 {3 _4 A% u
LOCALE_SYSTEM_DEFAULT,2 V6 C5 X# O- e4 y+ U; i* o
DISPATCH_METHOD,+ {/ m5 ?4 ~, t8 g
&dp2,+ a) B" o7 n! a( C: e9 b) j# Z2 b
&var,4 [( [5 c, g0 V# e; ]
&ei,5 Y# K! P9 m& Y
&uiErr);6 c7 N% T& }. A7 S
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SysFreeString(topicStr); & I" h# d+ I7 Y+ |1 I* S7 F SysFreeString(itemStr); 8 }7 ^9 C- t$ h请问该程序是获得extend里面的哪个值?2 _6 M" Y9 z1 n' `" D0 W) R6 [
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????