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:7 m; m5 T9 A8 D6 F ]- c0 q
Name = (WCHAR *) L"Poke";$ U- D9 }2 p: v- p* T
. h- H* \/ W! v4 E I hr = m_pDisp->GetIDsOfNames (( R- _+ Z2 r/ R' _0 o# U+ V3 I& R
IID_NULL, // reserved 3 v+ N( O( e% Z7 H; w* W &Name, // Array of names to get IDs for8 v9 C% ]. T2 N2 O8 a0 Q
1, // # of names in the array , q0 }1 p7 M6 E' s1 p LOCALE_SYSTEM_DEFAULT, // System locale 1 k9 I. A; c, S' g" h# R &pokeID); // Array of IDs to fill on output 7 Y9 Y) c* Y0 e5 C1 [2 N4 N % s1 m! h* o0 ^" [4 ^* |
if (hr): _: O& k. J: D* i2 ~( Z
{ ; q# d \1 _3 U# R! U" [" T) P( i MessageBox ("Get Poke Unsuccessful");4 \! ~4 q1 \1 I
return; . q8 T1 d0 k5 P/ ~& i' b- r } {8 Z' [$ g) ?
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/**************************传递数据给extend**************************************/ : a/ J, F% a% H5 Z. I m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 S' o4 q* O2 _1 A
8 ]& Q7 ^% ]0 G( M% j* ] valueStr = SysAllocString((WCHAR *) L"1232"); ; e5 o& ?2 r/ O3 r0 m/ m/ o VariantInit(&pokeVariant[0]); % U3 H7 Z. }: L5 ]$ \
pokeVariant[0].vt = VT_BSTR;+ `8 k3 U- u2 a3 o& x5 J$ c: ]/ U; S
pokeVariant[0].bstrVal = valueStr; & I4 T. O$ i' d- G |0 g# `, p \' b- \0 _, Y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! g. m$ z0 ]( f
VariantInit(&pokeVariant[1]); + y+ b4 K9 h: C3 T
pokeVariant[1].vt = VT_BSTR; 9 X) A0 `* g+ H1 j6 m pokeVariant[1].bstrVal = itemStr;& ~1 d- l: U6 y) S b' x, u
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topicStr = SysAllocString((WCHAR *) L"system");1 c [8 N" ]0 |2 y8 |
VariantInit(&pokeVariant[2]); " s, e# P( Q9 Z! y V$ ^' {
pokeVariant[2].vt = VT_BSTR; 0 @- B% z5 {3 n pokeVariant[2].bstrVal = topicStr; M1 N3 ^9 p4 m5 b$ s7 O4 h
. @. ]2 H. I' |& b) p8 D1 a. [// Set the DISPPARAMS structure that holds the variant. 0 c2 j1 M; V$ b# p1 u$ S. e8 W$ p8 V2 x0 O. z4 e& w% k( w
dp.rgvarg = pokeVariant;8 ?" l' a# @0 q6 h
dp.cArgs = 3;$ h7 T. z+ ~- ^0 t
dp.rgdispidNamedArgs = NULL; & o. c& O6 n0 `, P& a' X dp.cNamedArgs = 0;- M: X& P1 H u6 h+ n* E8 l
h* c" U2 a! Q9 R8 t3 s3 [0 q// Call IDispatch::Invoke()' j8 ^" l- h8 D7 M( v6 e
& n1 ?: C/ }6 r- E hr = m_pDisp->Invoke( % A' z7 I- |& F9 a9 p5 h7 m pokeID,$ S# n. d3 @6 w# _( m' \8 v- y% t
IID_NULL,1 K1 g, ^9 P4 X8 b3 S% l' H
LOCALE_SYSTEM_DEFAULT,- h0 X- o0 l8 _) T: O. l5 ^
DISPATCH_METHOD,$ O0 J8 U. S2 G5 k3 p: C: f) V
&dp, 4 N# Q3 G" A) |* Q0 q4 \8 S NULL, 4 X( e& {" f3 y1 u! o &ei,6 X/ G. G) v6 b* A: y
&uiErr); & _; q% v& Y& n( z) F1 h( l4 C5 q; {& ]! Y3 x; G4 V9 g& T: X
SysFreeString(topicStr); & k' |2 J; w6 f* o( Z: |, F! G SysFreeString(itemStr); 0 j+ L, s4 O8 A2 c- S K8 { SysFreeString(valueStr); p; U' X, X+ p8 l7 R( d L3 B0 o* v( z6 t* c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???' U) d' [, a* I
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????# b e) F: L% G& a) t7 q- |) |3 J# X8 v
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" f: p$ K! H8 _2 _$ h; @; V2.这是request的程序 $ g0 N6 w7 Y$ A$ G// Request a value from Extend ! c# I5 l, L& M" u, }//# u$ {8 J. L2 A) k( b' R
// Initialize the variant that will hold the BSTR. Set the variant's 0 _4 y2 n5 s' S* A: B! z// type flag to indicate the fact that this variant holds a BSTR. Place the + o; c2 x; R- x- O: l* K3 Z// BSTR into the variant structure. r H4 n) [, w2 u+ y( ^. o5 C
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 Y: y9 m$ P4 q. | 7 J2 ~ b7 g% T. g( l# U, X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); b) T' O3 }& ?: n VariantInit(&requestVariant[0]); 7 j5 W7 {7 E# T
requestVariant[0].vt = VT_BSTR;6 h. o; Z; {, @% _6 I$ l _' i
requestVariant[0].bstrVal = itemStr; k. V$ N( h9 a( ~4 E) W$ a3 n8 P5 K
9 R, Q' R+ `0 g topicStr = SysAllocString((WCHAR *) L"system");& T$ V0 d+ t1 i& @; S
VariantInit(&requestVariant[1]); & K* g. D' z j9 d7 u0 T+ _
requestVariant[1].vt = VT_BSTR; 6 q" N6 G# G* o% b' \5 @2 ?4 ^ requestVariant[1].bstrVal = topicStr;( o- |5 c+ S4 M% `" e
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// Set the DISPPARAMS structure that holds the variant.0 D0 o2 d9 S, V1 ]/ T3 Q2 ? k8 Z
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dp2.rgvarg = requestVariant; / X- i1 R& A& s2 r* b2 } dp2.cArgs = 2; ! y% J: O' V3 w' d( N: l dp2.rgdispidNamedArgs = NULL; . M- C$ }8 H, }3 V8 @( T dp2.cNamedArgs = 0;1 [/ I6 U! b c& ~. m; ~, [
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var.vt = VT_EMPTY;2 X6 D# Z1 S& `1 d* q
+ s% [" w; i. o( K3 x) a& ~// Call IDispatch::Invoke() 1 r# A( Z c! b( F+ {8 o; C5 G6 t6 N
hr = m_pDisp->Invoke( - L5 p @7 z( v8 _. m0 ~ requestID, 3 f+ e5 k& |$ h( ?5 ^( y IID_NULL,9 ~! U! [9 j s6 Z
LOCALE_SYSTEM_DEFAULT,% m i; H. }1 I2 c0 X( p0 u; R N
DISPATCH_METHOD, $ t* z; l7 f/ b &dp2, 9 F, f& k9 p' z" e/ K" N &var," k$ N- L/ K0 H' M+ K! Q' n
&ei,$ q0 `- F7 n& D% D0 T
&uiErr);9 S, K/ f$ K+ P) r- X. k
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SysFreeString(topicStr);+ ~: Y; j( C8 F% G L3 d
SysFreeString(itemStr);' K' S/ T3 H! q9 w7 L
请问该程序是获得extend里面的哪个值? # B* \9 \- h4 V! c5 T* A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????