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 E+ n5 j" \, \3 R9 v! W$ F
Name = (WCHAR *) L"Poke";# o0 _, _5 U+ I [, i
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hr = m_pDisp->GetIDsOfNames (3 j! i" F: N/ [5 G2 q4 E
IID_NULL, // reserved ' g8 o* F0 v) F6 `7 ]! Q1 r &Name, // Array of names to get IDs for : X% B4 K6 Y$ `* } 1, // # of names in the array # ?8 S7 \# R9 z. ?* t2 D+ Y i LOCALE_SYSTEM_DEFAULT, // System locale2 K; P0 j8 x. K
&pokeID); // Array of IDs to fill on output % F% w v3 y- E) a) F ! l' ~/ ~3 c( h2 l" w7 E5 U if (hr) % O' F/ y3 y+ I {8 P: e* J- r7 P; l8 ~
MessageBox ("Get Poke Unsuccessful"); " u" c& S1 w; u- y) P return;- }5 e9 X2 q9 `% c
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& A M$ P4 M! t3 L4 @/**************************传递数据给extend**************************************/' r, f/ p/ J* ?# G4 b& m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& H3 P- b" n$ ~) J2 I2 V5 C
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valueStr = SysAllocString((WCHAR *) L"1232");9 _7 K, V% { e. t6 _$ g2 b1 _
VariantInit(&pokeVariant[0]); # f! q4 j( ^" G( e7 C
pokeVariant[0].vt = VT_BSTR; H/ F4 @3 w, Z pokeVariant[0].bstrVal = valueStr;" e2 z0 X) S2 p9 [# f- d/ N. _
$ X9 i3 T1 I7 K1 Y/ s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! m! N+ o. R: D! J# V& J5 w VariantInit(&pokeVariant[1]); ) G% ]+ D7 `' b& ^0 ]" W8 n: }4 ^+ e) r
pokeVariant[1].vt = VT_BSTR;9 z" P% Z9 X% b5 p H0 b. j7 e2 w
pokeVariant[1].bstrVal = itemStr;) n! ~8 h9 [. i* @' Z
. Z' _" Y) p" l3 a% J5 W topicStr = SysAllocString((WCHAR *) L"system");) Z9 w9 g' u- W8 n
VariantInit(&pokeVariant[2]); 3 w5 }, r$ x' z$ S& Q" X8 O- I
pokeVariant[2].vt = VT_BSTR;1 ^, J0 j9 J% p0 N' d
pokeVariant[2].bstrVal = topicStr;. P/ }1 y, A: y1 E7 L3 G# W5 n
4 o. ], I0 s4 a7 R5 z// Set the DISPPARAMS structure that holds the variant. 4 e9 e* @$ R9 M+ D( Z: F1 k; Q% E: I ?. x* z B& u) ?, Q
dp.rgvarg = pokeVariant; 1 t: e* P) Z. v/ d6 G$ z2 D- J3 C3 q, x dp.cArgs = 3;* M, T% [ T; o, P5 s/ P; T8 n- {
dp.rgdispidNamedArgs = NULL;% u' d$ B4 q$ @: Q3 Y6 k- T$ P
dp.cNamedArgs = 0;# ~8 Q; ~+ A8 o: z7 y/ k
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// Call IDispatch::Invoke()* Z0 @ S, W9 f
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hr = m_pDisp->Invoke(1 e' Z5 X$ |7 u# w3 f d+ Q1 L
pokeID,9 D) u& F4 K9 B3 R
IID_NULL, 0 @; |' M5 k3 g5 V% l4 |' w- h LOCALE_SYSTEM_DEFAULT,6 r, p( H! n/ l; O% [
DISPATCH_METHOD, , k' r2 C" T1 A% ` V &dp, 6 I% O7 ^% u+ b) }. r- @# d NULL,$ T9 q" X: P+ e; Z* H* q
&ei,6 Q3 }! v) r6 }
&uiErr); 9 K% v* a- f# c$ D, k m 9 O2 W4 |9 I& B( E SysFreeString(topicStr);( ? F, x& c: Q7 f9 F
SysFreeString(itemStr);, ^+ y- J& L9 Z% N: c* B( P
SysFreeString(valueStr); / P( Q2 x+ {+ W* {8 W6 h) H' c$ i+ R+ }
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??? & j3 D# n# m/ m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????/ Q$ r/ B9 @6 \9 [: q
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2.这是request的程序6 F" n+ h' {- s" L
// Request a value from Extend2 y6 M8 k' T* w" w0 q: F% U
// ' @( t! [% L3 U, ]* z5 Q, E. f// Initialize the variant that will hold the BSTR. Set the variant's ' V% l, V; \9 w" K6 f9 n// type flag to indicate the fact that this variant holds a BSTR. Place the4 H/ J! U9 m8 A6 l, l' q- H# t
// BSTR into the variant structure.7 ^" q7 s5 X, `* g
8 [1 f& m. A! b# P4 O& U$ c requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); * ]: G- R3 w \. W2 v; P S# f6 y Y# r" Y3 m
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ U/ u/ j: r, I6 S& G VariantInit(&requestVariant[0]); 1 E! u r) U2 O- I
requestVariant[0].vt = VT_BSTR; : }: N g2 d! i2 o" I+ ~, l requestVariant[0].bstrVal = itemStr;) d& ]7 Z" d) ^9 \/ [" G
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topicStr = SysAllocString((WCHAR *) L"system"); . s, c/ v4 f, T: |0 r VariantInit(&requestVariant[1]); 5 b5 ^' Q$ t; y3 a$ Q+ N& X: o7 M0 z requestVariant[1].vt = VT_BSTR; |; m& _+ C! O; L2 }7 P
requestVariant[1].bstrVal = topicStr;/ l% p5 o! J% e" G: D9 J3 p/ T
9 g9 q( n' C5 a) _% Q( D9 f7 j// Set the DISPPARAMS structure that holds the variant.3 t) T1 V( h! ?* C9 h( Y
: w* t# R( U( }- e; @ dp2.rgvarg = requestVariant;, H! I/ ?5 |8 a
dp2.cArgs = 2;2 R) R7 {+ M; F# ?4 H( `& K1 e( s
dp2.rgdispidNamedArgs = NULL; ; \4 @& ^8 b" c/ M! i dp2.cNamedArgs = 0; 2 i: A2 j& X+ { ) M( D: r; G& Z+ h: J/ [ var.vt = VT_EMPTY; ' P5 e" p+ t9 ?& Z( H1 f1 b ) \- M' u/ @6 C. n d4 g// Call IDispatch::Invoke()* x1 i3 B( q$ Q" G* |& N
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hr = m_pDisp->Invoke(, E6 j* x4 `9 [! l) q
requestID,% r6 ~! N. H! b) h0 }7 `
IID_NULL, 1 R s# e; j0 h/ E1 R LOCALE_SYSTEM_DEFAULT, * y4 G8 o- s, ?" i' T DISPATCH_METHOD,! U8 t `0 F9 T( }5 a7 D
&dp2, " c( F! s! o. E, V& ^; v% J &var, 4 n6 k5 J/ x# t U/ D2 V &ei,( M4 _" s: o) e; d9 I: h
&uiErr); 0 p! n# \% h4 u! v5 m6 G- _% P R" n; @2 H
SysFreeString(topicStr);* N: f& q* W6 p
SysFreeString(itemStr); ' ]6 z8 U" l$ J& ]! _请问该程序是获得extend里面的哪个值? ' {% H% P& G+ I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????