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：% b+ _2 V$ `* @' J4 d$ g
Name = (WCHAR *) L"Poke";- f+ Z; |* m, C9 C t: I
1 X9 `0 y" P5 s- C0 b6 P hr = m_pDisp->GetIDsOfNames ( 7 z7 ~* `! v7 } IID_NULL, // reserved b- r* @) @5 ~3 I. T: K2 E &Name, // Array of names to get IDs for ' Z$ j. t2 J+ S/ ] 1, // # of names in the array # @/ k: [ n( D7 W, {/ j& d, m LOCALE_SYSTEM_DEFAULT, // System locale% u) |' j. ]6 R. Q5 y! ?
&pokeID); // Array of IDs to fill on output ( l5 V8 @9 j# N$ I 1 ?. _; I- L& Y9 d% \# i$ q' k if (hr)0 @9 I3 z% F' |& c% A% w
{ 7 }2 Z! {! W) o; U/ K1 K6 ?" T MessageBox ("Get Poke Unsuccessful"); $ O8 ] A! C) x$ k) l6 t* I | return; ' p9 P: j( `. Q; g/ R3 c/ y } , m% P% Y2 K2 P5 l * t S! ~( J: _" B! I7 d b4 _" b/**************************传递数据给extend**************************************/ 1 C; w+ r7 B3 {% l$ D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 ^3 g/ E7 V. z0 t% q 1 Y, N' B$ ?" Q: @; B, s$ F. N& l& \ valueStr = SysAllocString((WCHAR *) L"1232"); 4 e4 [! G6 F x9 G/ l VariantInit(&pokeVariant[0]); " F% R! }' q* M! { pokeVariant[0].vt = VT_BSTR; D& I/ m D& \* H, S
pokeVariant[0].bstrVal = valueStr;5 E7 G1 e l; P+ i
- O9 T$ L- ]; q4 C. x: c& c5 L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 }! G: w& _& B
VariantInit(&pokeVariant[1]); , g+ r, D- o% t& b2 D
pokeVariant[1].vt = VT_BSTR;+ a1 N7 v6 j7 \, z
pokeVariant[1].bstrVal = itemStr;0 {. C: X+ S/ g& F+ c
- K9 b) V7 Y' v topicStr = SysAllocString((WCHAR *) L"system"); ; K: P7 @ d( s- ^9 h- \ VariantInit(&pokeVariant[2]); 4 C" E% ^" h2 I$ k B
pokeVariant[2].vt = VT_BSTR;9 Q( o# g3 b! x4 G) I H4 ]( J; G
pokeVariant[2].bstrVal = topicStr;9 P# `: d. @9 m
9 D6 p N9 u( \// Set the DISPPARAMS structure that holds the variant.0 n- C/ L ?& a# r. O, e7 j+ I
& [! l( [* t! ? z J- M/ `3 J
dp.rgvarg = pokeVariant; ( F, O; K, X8 n& M2 ~/ A/ g1 w# ]. ^3 j dp.cArgs = 3; 3 s+ H2 F; i% Y( }6 Z dp.rgdispidNamedArgs = NULL; ; b; I8 f0 ?0 j& x! M7 F dp.cNamedArgs = 0; * F5 q8 X: K" Q$ o1 B$ \2 z" I' c5 Q7 t- |$ o: ?* I
// Call IDispatch::Invoke() 8 E/ q) O, z3 N$ G . V5 Q- i: M& r7 v( A) y4 I" t8 H hr = m_pDisp->Invoke( 1 A( {4 B" Q4 a pokeID, - e# C( T/ e8 w& K IID_NULL, % J1 j9 _/ ?1 G$ @2 I* j9 M: Q" o: w LOCALE_SYSTEM_DEFAULT, ( u8 C: Q7 p6 v: o# X5 ^' x DISPATCH_METHOD, " o5 U* F2 k, S7 N &dp, % I# @8 J5 b6 ? NULL, 7 i# g/ c$ k$ [9 v &ei, 1 l* k9 i& t% Z) h/ J9 X2 a &uiErr);, I& ^- {. `" I2 f$ Y. O
0 n; E5 U; V! L* E
SysFreeString(topicStr); / R7 l; d7 |* R5 Y3 T9 L8 S+ e SysFreeString(itemStr);* O$ e* v6 \2 S J0 B
SysFreeString(valueStr);' d5 o0 |' d3 R, D+ a9 a1 J
1 x; u4 n2 B+ K9 h: ~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？？？ ( ?( G/ E$ X- e" |7 o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？？？？' g/ G& X. w* M, D
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( }: t- Q# T2 b$ ]! \6 T+ ?5 {2.这是request的程序 9 v- p5 u4 w1 M+ @( u5 A2 X// Request a value from Extend . {& S8 [2 i0 d5 o# E/ Q//* `0 C* E- ~$ M
// Initialize the variant that will hold the BSTR. Set the variant's' b3 n) s+ d+ ]; m* d1 K7 s
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 M7 p, W& S6 p' [// BSTR into the variant structure. ; U; Y8 n. J7 R$ w! w" a$ P: Z& t2 _6 s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 h. E- x+ q' A
' \' U$ d. l4 V4 W! }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) `+ o: s7 q/ H+ t, R1 D9 a VariantInit(&requestVariant[0]); 3 U4 n! S% F& g' T
requestVariant[0].vt = VT_BSTR; 5 h- P1 U& B1 p% J requestVariant[0].bstrVal = itemStr; : f1 l8 F$ ?+ p( p9 x/ Q- J . f) d/ R( o: @6 ^! N topicStr = SysAllocString((WCHAR *) L"system"); 3 ^ c8 ^* {8 u. E VariantInit(&requestVariant[1]); $ M7 t' x3 @6 a5 M# h
requestVariant[1].vt = VT_BSTR;- r7 N" U$ N/ w9 W ^% A3 |
requestVariant[1].bstrVal = topicStr; - u" \; u( x. y1 r0 t3 q# k7 S* U6 d, T9 L8 l5 N" O# j& b
// Set the DISPPARAMS structure that holds the variant. t/ X9 N. F! K, |. H) M% `* u' s. k" w
dp2.rgvarg = requestVariant;0 e0 @+ h; ~* Z5 E1 J5 _" r, X9 ~
dp2.cArgs = 2;" r" O. X$ P3 ~' i9 G
dp2.rgdispidNamedArgs = NULL; t8 m, k5 b: @- K: k
dp2.cNamedArgs = 0; . C8 F e0 W6 N6 e3 y2 v' }' K3 b4 \, a
var.vt = VT_EMPTY; 3 C% F( X0 A; ^+ g" V# U) z& s" i7 ~* @7 N
// Call IDispatch::Invoke()$ D+ b7 s% D) G9 T7 K$ P7 u% w
$ |2 _+ U: b. l7 n c hr = m_pDisp->Invoke(: j% l# s, \) r3 z
requestID,6 P$ ~: M( q( P. Q2 j$ J! v$ ?
IID_NULL, 3 P- h9 v4 }% G M5 g LOCALE_SYSTEM_DEFAULT, ( ^# ?5 M( k! b& F+ v DISPATCH_METHOD,- ]0 P9 H- W& z: ~1 p5 V4 [
&dp2, ! E8 z7 y% Y Q( D' d' S, @6 k &var, $ K' E% |7 k. A- {( H: n1 | &ei,; d7 ?. ^) z6 x- z
&uiErr); 8 w1 G8 e; |/ I, T( |9 l: x1 r, a* P6 D; E9 O: c; m0 O
SysFreeString(topicStr); . Q w) V8 d; c/ | SysFreeString(itemStr); 1 h& B: W" ?! _# f' h; D请问该程序是获得extend里面的哪个值？ 7 j* ~6 Y- P+ [& Q# j/ G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？？？？
发表于 2008-11-25 19:37:03
