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:1 k1 A# U: j0 v! e3 ~7 w% s
Name = (WCHAR *) L"Poke"; ) |$ X0 l8 R) F$ c; q% L4 ~ ! G- N0 R5 C; [. q" B
hr = m_pDisp->GetIDsOfNames (* a ^& I% P% J$ h
IID_NULL, // reserved 5 O. Q" P% F- z2 m y &Name, // Array of names to get IDs for6 l7 t! d1 i9 ]5 c( m M: f
1, // # of names in the array- N3 C4 a* ` a& |. f! T/ |( c
LOCALE_SYSTEM_DEFAULT, // System locale- Q) N' w1 m: @: U
&pokeID); // Array of IDs to fill on output# G6 ^. g }' c
+ K9 ^- S$ U: C# k' p* X' j$ {
if (hr)# ?! l7 b8 M7 C; \$ G* u
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MessageBox ("Get Poke Unsuccessful");+ Z! E- {; { }0 f* |- w& l1 ^
return;$ g3 _# R# W- h/ Z
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/**************************传递数据给extend**************************************/' f/ Y0 x, }: [5 y5 t
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / Q$ ~$ W5 W. n6 j$ W( a; _5 p 7 D% I `6 Y; I2 E# Q
valueStr = SysAllocString((WCHAR *) L"1232");) C# @) t3 P I( r9 S8 a
VariantInit(&pokeVariant[0]); ) Z* x6 \# G7 q pokeVariant[0].vt = VT_BSTR;. ^, `7 O9 q! @* Z& j
pokeVariant[0].bstrVal = valueStr;( z7 Q9 d3 V# C* V9 F) O9 U
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& t% B/ K6 z( m( ^. v+ W
VariantInit(&pokeVariant[1]); . Q- X) Y; s* c7 p2 O, X pokeVariant[1].vt = VT_BSTR; * y9 c( g3 `, X/ l9 H: t- S1 S pokeVariant[1].bstrVal = itemStr; ( G! ?" X$ o& ]& Y' i: G3 [ ; N0 J$ l; y) I$ _ K* f. K v topicStr = SysAllocString((WCHAR *) L"system"); & V! k- G( o5 O' B VariantInit(&pokeVariant[2]); $ C; p. ]3 _% N' x pokeVariant[2].vt = VT_BSTR; ; `( p# l' h3 ^ y pokeVariant[2].bstrVal = topicStr;& `8 s) I5 p7 Z0 O* Y( d% `
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// Set the DISPPARAMS structure that holds the variant.9 N* V! J. \: H4 Z9 u7 s9 N
. H4 r. P# K3 k& U" S dp.rgvarg = pokeVariant;1 L( c. B7 u) j: O( d
dp.cArgs = 3; ; L+ ?' R) L! i0 w7 x dp.rgdispidNamedArgs = NULL; 9 v5 n- P7 E# w2 X0 g* X# s' F dp.cNamedArgs = 0;# G: P# U! ~) M' q' |* z T1 l
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// Call IDispatch::Invoke() 8 c8 t4 q4 _; |3 h, V & O* P9 B& T( e0 h" l0 r) z9 @0 z/ G( x hr = m_pDisp->Invoke( q* a# V9 Z5 P+ a3 E* j" ?; Y0 k! @ pokeID,) x1 U/ X, X6 i" C# j! U/ X, A# p
IID_NULL, . {8 z& X) `* t, D, T LOCALE_SYSTEM_DEFAULT,( h+ B2 G1 I( {9 g3 U# q, D
DISPATCH_METHOD,& }1 C" V7 E3 v% c# `6 z
&dp, 1 o( S. d& t" D4 z& H NULL,# @ n$ e4 Y2 T- _! x" o& K5 | k6 m
&ei,6 r2 u& j+ _, I) x7 ]
&uiErr);( P5 N7 C o2 ]: B$ ?) j7 n
& L0 Y3 r$ f0 o: z SysFreeString(topicStr);0 p p/ c6 U& x% v( ?2 p: X4 ?7 e
SysFreeString(itemStr);# ~: P9 l9 d) g0 c1 V0 z8 w
SysFreeString(valueStr);/ O0 @! P0 B& f) Q6 m& J2 r
* o* i$ ~0 f: e) W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???% Z, W$ X5 x/ j
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???? 7 k# }* W3 w. I: q, L 2 A- O& O, e8 z- M3 W" t7 a) Q' t ! H7 T$ B3 z3 g1 W- S. K- j2.这是request的程序$ k, ?# z/ ~( l Z/ ~, M5 |) e
// Request a value from Extend $ j1 o E7 W6 p' F/ E//; o0 G F1 c1 i' O$ m2 V
// Initialize the variant that will hold the BSTR. Set the variant's : r1 S, l' L" f' f// type flag to indicate the fact that this variant holds a BSTR. Place the " ~: t' B* R7 p// BSTR into the variant structure. 7 }+ }7 T# z, f- n8 @, p, L4 n- c+ g- W- }: V7 e/ Z! Q& y$ q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # p K) X( U) I/ P2 ?# z0 p7 ` 0 k* }/ t( [: _$ X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 X: ^6 ]# x, ^" A' }3 s/ \/ `& [
VariantInit(&requestVariant[0]); - P, I, t& Q, O2 j: a) L
requestVariant[0].vt = VT_BSTR;; g$ e) n: Q h' S i
requestVariant[0].bstrVal = itemStr; 7 B1 @6 I- }2 x6 e5 w+ D, t- J ) t& k: m n8 ~ s+ d topicStr = SysAllocString((WCHAR *) L"system"); 4 ?8 M" k! a8 z+ H% C# ?7 L I VariantInit(&requestVariant[1]); . z4 R7 W9 K9 u: I, Z5 k% o' E! y requestVariant[1].vt = VT_BSTR; , n, a. n9 ~& N requestVariant[1].bstrVal = topicStr;! F- A) B' G3 e* {8 M3 {+ W
2 `5 l3 g8 _" {. ?" x- _" z// Set the DISPPARAMS structure that holds the variant. , ^2 l, R, i$ | 0 |- ?) b% x. e dp2.rgvarg = requestVariant;. \7 V/ N$ O, N( E- ]# g: U
dp2.cArgs = 2; 4 O6 x& [. L" k% H, p1 ?3 C dp2.rgdispidNamedArgs = NULL;. \; |& l* Q( P3 x8 _
dp2.cNamedArgs = 0;/ t; t' j6 m7 z1 G# I& X
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var.vt = VT_EMPTY; 5 n c8 \; }% [, v6 q5 M 5 Z6 j/ Z; F9 A: H u+ Y# h, x// Call IDispatch::Invoke() . S% s$ b0 m1 D9 n" h( Q1 J, W ! L9 b: f, `* f4 V6 V+ B+ @ hr = m_pDisp->Invoke(- F7 f, ?5 W# S" Z2 h' @
requestID, ' Y ~/ F* S8 \9 J: T4 x IID_NULL, , N) `' n; b! J, k1 b, h LOCALE_SYSTEM_DEFAULT, 4 [1 Q8 q2 }" C5 [- U% B/ i; z% | DISPATCH_METHOD,7 F# A3 _: z* E- Y r
&dp2, # _: N: |9 u {' z y6 y x &var, 9 Q8 P9 D+ B" G; K9 S &ei,/ N% ^8 J1 O& @9 J
&uiErr);) f9 i3 H2 D% U4 g# G
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SysFreeString(topicStr);1 `8 S& M; w1 N8 r2 Y" S) n# k
SysFreeString(itemStr);. i3 j% Z6 d/ L0 U) h
请问该程序是获得extend里面的哪个值?0 o- }$ M X' o/ z. ]0 c
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????