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:. Q6 ^; {8 c1 h" e+ M! T
Name = (WCHAR *) L"Poke"; / x5 S" I- J" [2 b8 l P/ J- ~" e# k: C hr = m_pDisp->GetIDsOfNames ( ( o" l# x+ E: n# ^- {* w IID_NULL, // reserved7 H( Q9 e! u% h7 V2 Q5 x
&Name, // Array of names to get IDs for t$ e; e& B! l3 e# o* ^& k
1, // # of names in the array* y# H! o1 v, M7 W, _
LOCALE_SYSTEM_DEFAULT, // System locale2 I: ]; B7 ?1 ?- B7 m/ I
&pokeID); // Array of IDs to fill on output 9 q" ^8 C5 x. w( G - F$ V$ J- D4 `2 D' j' O4 C t if (hr)$ d4 X. i7 J8 T) ] Y$ g
{ & m; }, Y' B' s$ n i! k MessageBox ("Get Poke Unsuccessful");- P. U" |" W7 j
return; 8 k+ Y4 w* E, q" K } ; G; U1 M& d# a, L0 J6 M `* k3 a4 Y( i
/**************************传递数据给extend**************************************/ W1 r# ^6 x6 X pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 R# w" U0 L. g0 P) K8 T, X
( f. m. c% o- u2 t! m8 S valueStr = SysAllocString((WCHAR *) L"1232"); 1 f+ ~ U" |- ~2 J: _8 u8 [; j# u1 g. q VariantInit(&pokeVariant[0]); - f% B2 [( G( b9 |: r) g
pokeVariant[0].vt = VT_BSTR; 6 i, D2 k: W- d6 `4 Y5 i3 h pokeVariant[0].bstrVal = valueStr; 8 U7 i: p; _7 |# n1 I7 r " q! A7 T+ j$ _; o3 P! W! a+ w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 b# s& P0 d- p8 j. U" Z* W VariantInit(&pokeVariant[1]); % f+ k" k0 @ K; i" Q/ T, e# g2 j
pokeVariant[1].vt = VT_BSTR;9 u- x9 O4 A0 g2 }3 g$ O
pokeVariant[1].bstrVal = itemStr;8 @& W' v9 }' D. |" v2 p# [
H4 g( m) L& @: n: |8 U4 I( U topicStr = SysAllocString((WCHAR *) L"system"); \ r& x2 \/ p$ V( v! H, D5 Z- v, r VariantInit(&pokeVariant[2]); & B# V: D- e5 I0 v( \4 B, g- k2 o pokeVariant[2].vt = VT_BSTR;6 E/ ^1 ~4 k3 \1 N+ V' F: S t
pokeVariant[2].bstrVal = topicStr;$ r0 X2 m. v' b7 u0 }
( Q& C6 c; x4 |, V$ R+ m6 [0 p* M// Set the DISPPARAMS structure that holds the variant. & Q; @- V' G! k" V+ l3 v ; F0 h& u2 G5 j3 j4 d dp.rgvarg = pokeVariant; v$ y" d& R; @7 l0 @1 j
dp.cArgs = 3; - [& m! p" ]. r dp.rgdispidNamedArgs = NULL; 9 L3 m4 j8 y+ z0 [4 B& S dp.cNamedArgs = 0;' i4 s+ M; X) R9 q) |
' D8 m. r G* t' g/ w// Call IDispatch::Invoke(), V% W0 V: }& `3 |
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hr = m_pDisp->Invoke(- f p! u5 Q# l' g
pokeID, ; H7 p( i' Z) e+ S% g IID_NULL, $ v( ] ^8 ^: R" c) F LOCALE_SYSTEM_DEFAULT,' ~( C3 N; n9 s# F j# B
DISPATCH_METHOD, 8 i* I8 e, D1 ?/ `1 N) Z/ L &dp,* \6 ]# G1 ~2 S; k
NULL, - H+ Y5 g0 k9 s &ei, - ]1 T( ]2 b# s9 O2 G d &uiErr);& `6 X0 U# F# w( z7 j
- O7 Y3 F7 a+ U6 X5 z* X
SysFreeString(topicStr);+ g+ O1 `8 u& P6 v. `3 \/ d. X
SysFreeString(itemStr);; Z2 ~% ~1 z- i
SysFreeString(valueStr);2 S" o% {! q9 B: ^. J3 g+ D
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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???$ W, i9 K- P% r X% y
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????! a8 ^0 l k3 [+ u6 G
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2.这是request的程序 # U) a+ |0 o9 K. [% X3 X// Request a value from Extend* t/ B! m% @" d3 N
// * I+ `$ o! x& C// Initialize the variant that will hold the BSTR. Set the variant's0 ?, L% k6 f9 L- m
// type flag to indicate the fact that this variant holds a BSTR. Place the% k k- Z+ R1 j$ X' T
// BSTR into the variant structure. 0 Z4 P6 h C& j 7 q# h A4 G7 R3 h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); n4 ?2 A, x; g2 F' I6 f& l
* T7 c' D. ^( E6 G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' z( D& Y: ? K+ V8 K. ?3 X3 }" Y
VariantInit(&requestVariant[0]); `% e ]1 M. g
requestVariant[0].vt = VT_BSTR;4 @: A0 M$ s1 G/ v# V* r
requestVariant[0].bstrVal = itemStr;$ ^$ G$ D) t C5 C0 z5 A
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topicStr = SysAllocString((WCHAR *) L"system"); * k2 a: O2 j# y, ~ VariantInit(&requestVariant[1]); - m" ], V, y3 E% w4 O4 V requestVariant[1].vt = VT_BSTR; 4 g: C N7 I" `. O6 d8 u requestVariant[1].bstrVal = topicStr; $ O+ {/ F+ E0 X0 G o u* v k) b2 i9 c9 R
// Set the DISPPARAMS structure that holds the variant. ! @1 |8 g- N3 C, N& B \ P ; D; X( P) ~6 m4 O) u dp2.rgvarg = requestVariant; 5 H3 }0 ~0 o4 X F7 }/ @ dp2.cArgs = 2; " k: J) P1 f, ^0 `' g3 y9 I dp2.rgdispidNamedArgs = NULL;% a# l5 Q2 @, J+ [8 Y; L- w
dp2.cNamedArgs = 0; 6 `/ E1 b/ G; v' X9 P4 n ; ]2 x" r4 b" a, j3 }* I* c4 ` var.vt = VT_EMPTY;* |' S, y$ p# F: f$ z9 s
4 u U, }9 N* x/ O9 Z. _) C1 [- b// Call IDispatch::Invoke() ( W- l( J" d* u7 o' u: m, O: H* u, g( J. P1 X0 i& f. y; g* D' n
hr = m_pDisp->Invoke(+ M: t/ \& b1 r' H; ?* M S1 A
requestID,9 {; R2 A! s; i" w, R3 V) G: q9 K+ J- A5 I
IID_NULL, - h$ T) g! |9 Z9 ]5 F1 Q7 h8 N LOCALE_SYSTEM_DEFAULT,. x. l7 [$ p* h( @2 c7 w
DISPATCH_METHOD, , x6 U9 R8 Y3 {& Z' o: r &dp2,9 k& L8 f% ^- B/ F
&var,2 M P( D7 o& k" G& q$ Z5 Q8 g& V* x
&ei, ) v4 N0 S8 a3 H2 \; I7 ]) a &uiErr); 8 v# ?! J( n9 z6 ?6 |2 T8 j) ]- P! X' Z; c$ D: y6 u/ l3 h
SysFreeString(topicStr); ?0 k. c8 B; u" q
SysFreeString(itemStr); v) a) P6 K; ?3 v
请问该程序是获得extend里面的哪个值? . m$ T3 a, p+ r/ {' l3 Q: ?5 ^" u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????