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:/ l0 t! I( x, B# v4 y
Name = (WCHAR *) L"Poke";" _9 |- r$ |& t
8 u) N* ?8 v$ i. ^+ [/ G! I8 v hr = m_pDisp->GetIDsOfNames ( # q3 ~4 y* j) ^$ g) `" \, n IID_NULL, // reserved- J4 Q; I _7 a; s% [0 j7 v) v6 F
&Name, // Array of names to get IDs for , g: e* p* Q7 t' S$ b/ H7 a9 N. {. q 1, // # of names in the array ) q& {4 `' m/ h+ ` LOCALE_SYSTEM_DEFAULT, // System locale ) q8 {* l$ ^8 n( s! A# | &pokeID); // Array of IDs to fill on output% ?/ m8 `2 V5 d5 j; E. v% u( g3 g- b' q
8 u0 C5 f" |- ]4 d0 q if (hr) , m6 f( n3 v( @9 r0 c {0 e: }+ k u+ {# D& e9 i0 S
MessageBox ("Get Poke Unsuccessful"); 7 ^9 |* z* d. { return; % V3 H# z! z: b/ v } " G8 {! N) K, \- i% U3 T6 ~$ v) n6 } V' a
/**************************传递数据给extend**************************************/9 ?' U1 `! K- u3 n3 D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ }1 y0 G6 h; g; g7 d l$ V
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valueStr = SysAllocString((WCHAR *) L"1232"); $ ?3 y5 p# L$ l3 f VariantInit(&pokeVariant[0]); 5 s# y+ u$ S( u" C" W7 ^ pokeVariant[0].vt = VT_BSTR;6 _9 e4 T. o5 [
pokeVariant[0].bstrVal = valueStr;2 z) M" t! J$ O! z/ s) X
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ }$ c2 _. M5 d, e# i' v
VariantInit(&pokeVariant[1]); 0 t* C# Z o0 |. x. T
pokeVariant[1].vt = VT_BSTR; 2 N; s' Y) X( j6 P3 T: m2 N( R pokeVariant[1].bstrVal = itemStr; M+ `" p. g0 B
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topicStr = SysAllocString((WCHAR *) L"system"); 1 O i/ v |) C0 D VariantInit(&pokeVariant[2]); 2 I( s" I b9 n" g
pokeVariant[2].vt = VT_BSTR;% @) F8 X5 s5 n5 h2 Q
pokeVariant[2].bstrVal = topicStr;) j$ n# |; \1 \# z$ d5 o
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// Set the DISPPARAMS structure that holds the variant. [7 r U2 c# r) ]# a 5 ?! C7 R! m9 X% ~( ? dp.rgvarg = pokeVariant;7 i9 L! _) C7 Q9 Z
dp.cArgs = 3; 6 b8 y4 m! U; q# R8 ] dp.rgdispidNamedArgs = NULL;; Y. w4 \. j7 O9 h/ ]8 j% }
dp.cNamedArgs = 0; - P _& x0 C. m/ ]7 c+ Y7 g$ T3 h; K7 b) C/ T3 K/ a$ p; ^) u- [
// Call IDispatch::Invoke()/ O+ r, i, c) l5 P
b0 j( h+ Y! w: G0 \, {* S hr = m_pDisp->Invoke( . R! i" o# \6 ^ pokeID, & d! ~0 b- |3 [5 d( u IID_NULL,9 V4 Y% u2 q9 Y' X' w( x
LOCALE_SYSTEM_DEFAULT, 5 A# n$ t0 k# i7 r8 [$ H* r DISPATCH_METHOD,2 o! W6 H6 r# U2 ?7 K: u" x
&dp,- H; P; M& L+ w7 i4 E& {; n; k
NULL, ( V- i# a) Q: W2 Z &ei, " s+ g9 T8 j: p! u7 e6 m &uiErr);. M; N- t: T" H! c
" E* o; r+ z' w1 q# H9 K) m SysFreeString(topicStr); 4 R0 O2 W s! R5 D; M( @, t SysFreeString(itemStr);3 D+ C. z# l6 C6 b9 F- J2 K
SysFreeString(valueStr); ; j- c# h/ t2 `9 }! u! r, B ?$ I7 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??? ' v+ n( u$ `/ X# |! M: U6 A @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????8 l0 Z# l1 h$ u' z( A# O: n
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2.这是request的程序+ F( z: h9 d6 R; F8 Z
// Request a value from Extend2 T% ]4 P) a' d @+ w# o3 ?& ?5 [/ \
// 9 ]# l& z7 |& b, G( X' _6 K/ n4 O* b4 m4 L// Initialize the variant that will hold the BSTR. Set the variant's( r7 H/ f$ b8 I: r1 ~3 ~2 z o
// type flag to indicate the fact that this variant holds a BSTR. Place the u3 Q! m' _0 G' v; ]// BSTR into the variant structure.) n! K( ~* ]1 u L8 E, F! a. j8 F' |
8 ?/ B( u) G/ `. e, q+ W; r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 K7 t( U+ p; }) G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# {8 u+ {6 j' V* U; g
VariantInit(&requestVariant[0]); 3 w1 \2 I2 o/ z: K) {6 H2 B+ b) u
requestVariant[0].vt = VT_BSTR;4 f8 y, _4 [ m; H) ?6 E7 L
requestVariant[0].bstrVal = itemStr; ) T+ D; R$ W8 b2 S 1 r6 `" _- ~; v$ e. z/ n topicStr = SysAllocString((WCHAR *) L"system");. N/ H' u4 W$ Y1 g8 ]
VariantInit(&requestVariant[1]); 8 g- y: [5 ~6 I/ x9 y8 v7 W# R
requestVariant[1].vt = VT_BSTR;0 q2 q* D+ l1 A9 r: R8 ?7 y
requestVariant[1].bstrVal = topicStr;3 I. e% n5 Z `% U1 I
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// Set the DISPPARAMS structure that holds the variant.8 {/ i( n( v: o! ^1 A. S$ e+ z9 C) I
! o% s! K0 U2 G9 k$ {- V dp2.rgvarg = requestVariant; " U3 Z) z, q; k: r+ B3 ] dp2.cArgs = 2;1 F: K0 D2 n( [0 [
dp2.rgdispidNamedArgs = NULL; $ K* [. w" f3 _! k% j; e dp2.cNamedArgs = 0; 1 m1 X4 a% z5 L( N1 l$ V- @; n8 C1 i7 V3 O7 v- p, C
var.vt = VT_EMPTY; # A& Y0 R1 D+ B 6 k; B7 B6 Z5 }: N4 p+ p X// Call IDispatch::Invoke() , a, c! s J# q% a0 e" `; e$ h/ w# K8 p% {) c4 J- a
hr = m_pDisp->Invoke(& ?; \: n$ o# ]
requestID,0 Y4 Z# V! k9 N1 ^
IID_NULL,/ }! W) B7 e0 k" P5 {, a% ?4 B
LOCALE_SYSTEM_DEFAULT, * ^# Z7 V. A) Y; I9 Q DISPATCH_METHOD, 0 L5 X' S5 K9 W* h# _8 N &dp2, 0 A6 Q1 |' a7 T- r1 R1 _ &var, 8 P' `0 u+ f6 N( c0 O. T &ei,: D# m6 o) U* }: {% F
&uiErr); 5 A! q7 X( k! n, j' ?2 t, k# V y" \* ~% d
SysFreeString(topicStr); 3 }, `' x# T% s1 m; U, ~4 c" { SysFreeString(itemStr);2 E7 E ^- V; K/ P9 s* m) G
请问该程序是获得extend里面的哪个值?* `. F! e" C4 ^: G( D* U( w( Z
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????