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: - j3 S9 ~( ~( N+ Y2 RName = (WCHAR *) L"Poke"; - h: q2 Q6 E) t7 {2 e: P) |* \ ( t# Z& K% k8 N hr = m_pDisp->GetIDsOfNames (6 E% u7 ~0 |# U2 z0 m5 L
IID_NULL, // reserved 8 q7 [ f' P7 y& B3 Y/ P &Name, // Array of names to get IDs for 2 [1 s7 i' h( T7 n. V 1, // # of names in the array! Q) G5 B: o0 f& c) A. g5 V8 G
LOCALE_SYSTEM_DEFAULT, // System locale " M+ j' ]0 `! ?8 D k8 z7 c+ P+ Q! O &pokeID); // Array of IDs to fill on output$ G5 |$ U4 a8 W4 Q8 b7 o8 t
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if (hr) - E% }8 L/ S" w3 X) f; L {$ ]! \, w2 T: i/ B
MessageBox ("Get Poke Unsuccessful");! M0 |/ ]9 q- T6 W) o
return; / c2 u( n$ g" N# ` }5 B* f) I' `6 ?- d" K5 }4 N" J
8 A% [. Y2 w9 o1 x) v5 V# H/**************************传递数据给extend**************************************/; ]1 M1 l' {. y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 e# q. d; @" o9 K
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valueStr = SysAllocString((WCHAR *) L"1232");8 \* D" X% v) d$ p8 |: i, L# k
VariantInit(&pokeVariant[0]); " c& P9 N/ k( C+ o# b! y
pokeVariant[0].vt = VT_BSTR; 0 U6 c, r5 R2 D) w" C4 ` pokeVariant[0].bstrVal = valueStr; 7 ]' c9 Y N( B! n' T1 } 2 u6 p; e9 a ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + v6 ^* S4 {+ D9 f4 n ? VariantInit(&pokeVariant[1]); + \* s0 _# f9 @: z1 Y. o% u
pokeVariant[1].vt = VT_BSTR;- s4 ^5 W* K9 l3 b
pokeVariant[1].bstrVal = itemStr;" T9 a6 o# ^, i8 k: M4 `
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topicStr = SysAllocString((WCHAR *) L"system"); Q0 w, J. @5 u( @) F A VariantInit(&pokeVariant[2]); 3 M( E( _/ W$ |, G pokeVariant[2].vt = VT_BSTR;1 q& F9 `+ l- h% _! z: k* n4 }
pokeVariant[2].bstrVal = topicStr;8 a) p- m: P& u7 @$ J# C
" w- M$ `2 \( f# t0 [: I2 @// Set the DISPPARAMS structure that holds the variant., r0 Q9 j$ x c( F
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dp.rgvarg = pokeVariant;. D, z$ B8 {6 E) o0 m
dp.cArgs = 3;* f: n% H' @! _# w( \" ^% m, E# b$ F
dp.rgdispidNamedArgs = NULL; 6 R$ d# O1 O8 z+ v0 t" p- B+ _ dp.cNamedArgs = 0; / L, I7 G. z5 c2 }. D+ f; n6 e' q4 r! g. \ r" I
// Call IDispatch::Invoke()1 Y/ W& E/ c; i
( f; F; b8 b# p9 J$ S" Y, X" e- G2 a hr = m_pDisp->Invoke( 1 C& }2 H1 |) c1 K% A3 c pokeID, ) ^, v8 m4 m2 C# N( J% w' F IID_NULL, : }. }* u: u& X) P LOCALE_SYSTEM_DEFAULT,: Z, ?0 Q( h* c/ w& s2 o# b {
DISPATCH_METHOD,' ~( t* N/ j. \/ c, v3 Z' C% `
&dp,+ `3 v& [1 b5 y5 d$ p5 Q& }3 l+ o: E
NULL, $ U, m5 F) T# H- Y& y8 m/ ~+ j &ei, $ M0 \9 T) n% ~$ u6 Y &uiErr); 2 o: W$ O, |: B! Z' f2 h. P9 \" A1 H7 V2 B# {
SysFreeString(topicStr); 4 Z/ f9 x2 m# M8 a4 f" }% w6 d SysFreeString(itemStr);: e# |/ Y, e) A3 D0 o3 e- e
SysFreeString(valueStr); 9 g* Y, i4 Q$ Y# e' Q+ m+ Q - H6 a& U% `: V' x* a7 M! I1 O5 t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???6 e" X5 m& Q3 b1 j1 ~5 x9 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????0 o7 N' c4 _# n) @7 j
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2.这是request的程序9 f; d- m& n) f5 R- V
// Request a value from Extend( Q# a* g D( a0 K" @2 @7 ^( N% P& n' i
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// Initialize the variant that will hold the BSTR. Set the variant's* ~/ u- V5 k3 {/ S$ R: g
// type flag to indicate the fact that this variant holds a BSTR. Place the2 K# ~. {' v8 T4 L
// BSTR into the variant structure. 3 i( g7 ~) Q N5 a ; y/ @6 u& Q% z* X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 G2 b0 `& V. w9 s; J. ]4 C ' d( }5 H/ o/ \! }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) J) S: C9 l7 z9 ? VariantInit(&requestVariant[0]); 2 f Z+ b8 n* J2 E# f
requestVariant[0].vt = VT_BSTR; & ~# ~2 ]; m4 V$ | requestVariant[0].bstrVal = itemStr;2 T0 g# O# d: b+ O0 f; q R
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topicStr = SysAllocString((WCHAR *) L"system");8 d7 ^# q- u8 l" g5 u* l' A
VariantInit(&requestVariant[1]); 4 F% K3 f H; Y% H T) I O
requestVariant[1].vt = VT_BSTR; 0 c4 r% R9 E( H H6 X- n requestVariant[1].bstrVal = topicStr;2 V. ^. x% |# \ T. z7 S, v' Z
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// Set the DISPPARAMS structure that holds the variant.' H- u. n$ [& w4 @; B( O- R
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dp2.rgvarg = requestVariant; 7 ]' f- V1 {, H! v( j- R { dp2.cArgs = 2; * i. [! B Y- H; C, t' [& o$ N$ k dp2.rgdispidNamedArgs = NULL;6 _1 y( b$ K+ |( m o3 @, u
dp2.cNamedArgs = 0; : `/ O! e' u. U t* {, i8 G# Z* \ q
var.vt = VT_EMPTY;( {6 I8 s+ _ U8 ]) U# i, M
/ I) L# ]$ {4 R v. r" u// Call IDispatch::Invoke() 8 v& ^. x" j$ Q; ~5 _: T: v ' V, h9 c& q6 ]0 A1 E! X$ ~ hr = m_pDisp->Invoke( ( y8 Q8 V& v1 C! z- e: D requestID,, S2 \) s9 |" |- K
IID_NULL,9 X0 }9 c$ e9 d' K) ~/ S5 x0 G; B. r
LOCALE_SYSTEM_DEFAULT, * w5 i3 m/ g; o. p j$ w; | DISPATCH_METHOD, " ]# @. b6 Y4 R- q &dp2, E1 A0 V0 b) w7 S* ], K. b &var, 8 l$ R, V6 i7 y: d1 }" S0 y" Q &ei,' K/ ^ t6 E5 V# T$ Y+ Z2 N
&uiErr); ( Q l$ M; o: v2 Y" W 3 u$ F# E# t* C( S5 w$ U SysFreeString(topicStr);8 K/ d/ {9 J, Y- d# |
SysFreeString(itemStr); m. H' W' g$ |- ^- Z& [
请问该程序是获得extend里面的哪个值?2 L. d: F3 {8 M) Z9 W& \
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????