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:+ N$ Y+ M. X. L1 K
Name = (WCHAR *) L"Poke"; # F/ x+ y8 F7 Q. ?. W" Q! L5 s2 p . c% F" `; T6 F' ?6 y hr = m_pDisp->GetIDsOfNames (' Q1 s$ W. \: U1 K1 \ l- L7 D
IID_NULL, // reserved 6 \* h- ]/ \4 |, n8 _2 F/ s3 ^ &Name, // Array of names to get IDs for+ }6 e: y& y( L i; J
1, // # of names in the array5 s9 `2 S; d2 q8 G G; b; `
LOCALE_SYSTEM_DEFAULT, // System locale B! m9 n) Q k9 Z: j& v0 @$ n &pokeID); // Array of IDs to fill on output O$ v3 K+ A& p7 @
h- ^7 e- X+ g if (hr) & ]. h; ^) k; C5 t% G' t { : a l9 g9 f. z3 z" r7 l MessageBox ("Get Poke Unsuccessful"); ( A; ~* ]/ H% D) f( F& r9 c return;8 m$ J8 P9 X- \! @! t5 W9 s
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/**************************传递数据给extend**************************************/3 Z5 H% V9 Y( U! R
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " B' C! g1 _" d" r$ v 8 F+ i- W) A6 }! d! }
valueStr = SysAllocString((WCHAR *) L"1232");" |% ^0 {# }3 X ?
VariantInit(&pokeVariant[0]); 1 B/ N! B7 x. k0 g pokeVariant[0].vt = VT_BSTR;: u- S; r [( ?0 ?5 U, I- K) w
pokeVariant[0].bstrVal = valueStr; ; w( x4 b2 A; \( Y- }6 P7 Y, u* ^: d4 J! Q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 ` r3 k0 `9 j# O6 d- D VariantInit(&pokeVariant[1]); 7 @" ]+ _1 Q4 J- H; Z3 M5 ^6 F
pokeVariant[1].vt = VT_BSTR;1 h5 `+ N6 w' N: \8 b
pokeVariant[1].bstrVal = itemStr; ) z8 ^( O7 @- I Y# S/ _3 _- q P, b/ m* c
topicStr = SysAllocString((WCHAR *) L"system");4 u9 _. J) R$ v" a
VariantInit(&pokeVariant[2]); 2 }4 b9 \, r* Q/ d8 F
pokeVariant[2].vt = VT_BSTR; 9 B9 N$ A2 m1 l- p. O; H7 I' M pokeVariant[2].bstrVal = topicStr;1 j: k" R2 X9 N% _& Q6 v
7 K; c( p9 |8 G8 b) ~9 y// Set the DISPPARAMS structure that holds the variant. 3 q: J8 ]3 F! g6 ]7 i2 t/ L! S$ |: I) b
dp.rgvarg = pokeVariant;. o! D. o% q& b0 O* t/ m4 r
dp.cArgs = 3;% n& ^ M( f. b' Y
dp.rgdispidNamedArgs = NULL; % \+ o* q+ f5 e' t( N6 @9 m dp.cNamedArgs = 0;2 z. J1 }# S6 L
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// Call IDispatch::Invoke() ( X- `: ~9 U Q+ [: [' S, S* V 6 ^7 k. u9 `3 N$ } hr = m_pDisp->Invoke( , ]& g q1 s( T- `* }0 e pokeID, 9 f) A- q9 }3 |2 {% Y: C' x" Y IID_NULL,8 A/ l8 N; G: g1 S
LOCALE_SYSTEM_DEFAULT, & J- m1 z- c& T, P! b5 x DISPATCH_METHOD,8 L+ }7 ?& ^4 y8 }% s: t8 B* J
&dp, @ n% j5 c( s9 w NULL,6 y1 d" i2 B$ C* s: Q; I4 u6 |
&ei,/ z5 \6 y/ K @: {/ b1 x1 V1 J& ?" X
&uiErr); & u5 n; G( Z9 G6 F& E$ Y5 Z3 g- g ) x! F& A) d6 g3 W6 `7 x SysFreeString(topicStr); 3 m9 u, w/ r. V+ j$ } SysFreeString(itemStr);: S" u5 h1 Q Z7 U0 r0 ^
SysFreeString(valueStr); ; C1 I- i' _- n5 z - B8 ^5 {# B E: K+ `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??? * i! m. D4 \6 _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????* p( R0 \5 V2 S5 C* \
& ?! f8 r4 U0 E- c ! Y( p: Z) G$ i$ ~/ {2.这是request的程序; Y) N/ I. L+ [' T% W$ P" d% j3 h
// Request a value from Extend0 h1 W0 S) s! P0 P \
// ) m. ~4 Q4 k8 s& Z% x// Initialize the variant that will hold the BSTR. Set the variant's4 y9 x8 Y( D! \; b8 N( H" j
// type flag to indicate the fact that this variant holds a BSTR. Place the : f; h, d6 L$ A1 \// BSTR into the variant structure.9 V' Q4 G# t' a3 M' j" O
1 O* h9 g7 R4 v5 ]" r$ P+ v/ f requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 Q9 b4 d: }6 T8 u% e 2 l: b. c* G/ W7 l v" _" m: ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. p: o( f3 |2 G# c
VariantInit(&requestVariant[0]); 2 N& x: q3 A# l1 ~( V
requestVariant[0].vt = VT_BSTR; : `. f. b; }' b; X0 n$ X* }0 i requestVariant[0].bstrVal = itemStr;: o' p) m% C# b' k* @
* h* u, w; `! D0 K; V topicStr = SysAllocString((WCHAR *) L"system");/ H0 a. O- ?0 t6 Z3 p) J
VariantInit(&requestVariant[1]); - [* s+ M P* N$ i/ P" z requestVariant[1].vt = VT_BSTR;9 R5 x+ P' _: _" }) R
requestVariant[1].bstrVal = topicStr;+ A2 O2 d8 b2 `( u4 x6 F5 c
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// Set the DISPPARAMS structure that holds the variant.- L. y. K6 d Q( J
+ V6 v, c8 f$ T9 u! z8 A dp2.rgvarg = requestVariant;! n% w8 f9 R. U4 s" d- H
dp2.cArgs = 2; 0 v5 u5 l' |: @# ]8 K" L dp2.rgdispidNamedArgs = NULL; & h& P, }! q {* _2 R$ r dp2.cNamedArgs = 0; 5 u, ?" D% k) ? 1 n1 `, K5 k7 S$ X9 D1 k6 f var.vt = VT_EMPTY;; h! r$ |* e8 e) b' N' T
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// Call IDispatch::Invoke()# }% ]& y7 _% R% O* f
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hr = m_pDisp->Invoke( 6 e" o. w# M* Q# @ requestID,1 x/ ?; `/ U( [% }
IID_NULL, + a1 T3 G1 x* e |+ M LOCALE_SYSTEM_DEFAULT,! G6 N9 r( c6 g- }
DISPATCH_METHOD, : C* Z$ [/ G/ C &dp2,6 n9 `0 \) {; S" \* ?" N# w
&var, + E0 _4 z# O" Q6 e! _/ K0 _ &ei,' R" _! {0 ^5 r- @, Q, |
&uiErr); / o8 s N) R2 T3 I% W4 O2 F: P8 E& t- H: F- C2 h- I
SysFreeString(topicStr);/ h/ |8 t1 m; H
SysFreeString(itemStr); 8 \4 Y4 z- i; L+ ]$ u* V2 m3 l- @请问该程序是获得extend里面的哪个值?/ d( I$ f k8 L" f) V, u) K
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????