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:; z. n7 m- Y1 Z6 y
Name = (WCHAR *) L"Poke"; ' L) A. T5 y9 f: D% U % v& C: e: @" G; X2 ?) u( W$ v, C2 g
hr = m_pDisp->GetIDsOfNames (% h P f- p i7 e. o
IID_NULL, // reserved% n$ ^1 u% w) T- } c) D @" I
&Name, // Array of names to get IDs for : ^( J5 M M. r$ |: P7 u 1, // # of names in the array4 Y) D0 l% S# o0 U; T0 A( E' ^
LOCALE_SYSTEM_DEFAULT, // System locale3 K3 T9 [4 {* ^
&pokeID); // Array of IDs to fill on output # _( x9 x. E- }. f# G7 w; H % c4 m8 y6 @; {, D9 }, }8 W! n! o
if (hr) * [0 M# N! d: p) l, F {. L; t) g7 D! M
MessageBox ("Get Poke Unsuccessful"); # [3 R7 V9 @- |: ~; [4 Y return; ' a: A$ v+ R3 K6 f' ?. i" J }' G. Z* [; d( e* F, v( H
; F9 T* g% s& I/**************************传递数据给extend**************************************/) f, v5 n1 S3 b& d3 p. o& @
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, e+ m# y& ^ V9 d4 y5 n9 L
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valueStr = SysAllocString((WCHAR *) L"1232");2 P6 \7 t7 d# s- V& p) S
VariantInit(&pokeVariant[0]); 7 [+ |, s3 f( ^ v/ Y: M! T pokeVariant[0].vt = VT_BSTR;. t, n! L: Q* d3 z h: u
pokeVariant[0].bstrVal = valueStr; 8 R0 s! h- ?! U0 q# \" R3 _( T7 } ! H( V5 |% t, @0 a' w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : w4 p, `, w- X' @6 E VariantInit(&pokeVariant[1]); + X3 f6 `$ w5 p& d pokeVariant[1].vt = VT_BSTR;. D4 k* _; r7 X" z( a- ^
pokeVariant[1].bstrVal = itemStr;( I a @# N+ v; B7 n
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topicStr = SysAllocString((WCHAR *) L"system");6 e6 k$ ]" D5 j3 x$ i
VariantInit(&pokeVariant[2]); 2 c5 p0 \: d* m7 |5 P; m b pokeVariant[2].vt = VT_BSTR; # k- j4 H0 j4 M$ W pokeVariant[2].bstrVal = topicStr;0 G+ r3 H4 N& s: k
& z' |; P% Y) \. F# i// Set the DISPPARAMS structure that holds the variant.( R7 g3 c- [, O- |) Q
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dp.rgvarg = pokeVariant;( M8 [. I! Q4 G+ C; T; A5 E: Z+ `
dp.cArgs = 3; * k5 I! b) _+ c! s* l dp.rgdispidNamedArgs = NULL;0 }2 U2 e: ~3 l( e+ V
dp.cNamedArgs = 0; ( j9 }8 B9 t" r3 {9 d . ~4 ^: u" ]+ b& @ A// Call IDispatch::Invoke() ; ?; ^, t) y0 Y, q2 ~ 3 {0 G& e# P3 B% k. D/ ` hr = m_pDisp->Invoke( ( f) `- [6 C6 j$ P; Y+ `- ] pokeID, ! Q& [" n, B; s IID_NULL, + Q7 _ _, y8 g/ y LOCALE_SYSTEM_DEFAULT,* p$ w- D m+ Q; X; O! v& W% l
DISPATCH_METHOD,# t% n c; k0 D7 m6 c, [
&dp,- e! w1 F+ D+ o. c* } _4 \4 V
NULL, ! `5 w2 S- K) m &ei,+ B1 j9 k7 e8 a% s0 \3 R2 P7 ?& t% D
&uiErr);* F1 X. }+ W3 [3 L- y9 i" l( a! A
( }5 l- g* {7 k1 c2 r. h SysFreeString(topicStr);% Y. I$ I6 {% G* O1 k& w" o' c. T
SysFreeString(itemStr);- m" ~* Y: \# X( H
SysFreeString(valueStr); 2 R7 w- w4 b" A @' A) d' v1 Y+ S8 Y9 _ 2 `0 Q( x9 V! ]) Q j, ?1 ^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??? 7 D. g! k4 o3 i- b$ q0 M4 \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????5 |! p& C6 T0 I) T9 l7 T: b
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2.这是request的程序4 @3 q( T* q* N7 s
// Request a value from Extend; ?' v! w$ n) m* K9 S! Y0 |. o
// : q2 W" i" @& H// Initialize the variant that will hold the BSTR. Set the variant's . p& {# H: F6 P7 o8 k Z! \// type flag to indicate the fact that this variant holds a BSTR. Place the% d! [7 C/ b2 n1 E
// BSTR into the variant structure. 0 A1 W1 F7 V3 M8 P5 v$ g! ?' U" C2 y4 B
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' N$ r: e; F8 D3 Z7 m" y / t. {: G! g' p9 g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& M, a4 H# e, J( N+ z( B
VariantInit(&requestVariant[0]); ; f3 N- d N" V, ]! ?* ?
requestVariant[0].vt = VT_BSTR; * M1 f8 J; C) x+ P requestVariant[0].bstrVal = itemStr;0 O4 b8 k4 V5 N! M- @
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topicStr = SysAllocString((WCHAR *) L"system"); 3 w5 @; O2 l) ~" W9 M$ l VariantInit(&requestVariant[1]); 7 @& |* Y% q# D; X4 x
requestVariant[1].vt = VT_BSTR; ( B3 [ v! U0 z, R2 m) U requestVariant[1].bstrVal = topicStr;/ s! l$ o, `3 S4 o' d8 C
, L$ _0 m3 G3 ^# G8 p7 `// Set the DISPPARAMS structure that holds the variant. / ?& A1 V2 @/ Z2 O+ c5 N4 x3 N* D+ O+ Y6 g
dp2.rgvarg = requestVariant;: \0 \+ R9 r" ~7 A. m- m
dp2.cArgs = 2;/ Q2 F. q ~( H/ E) e
dp2.rgdispidNamedArgs = NULL;/ Z# {& F& _) s3 A+ c( Z" E+ `
dp2.cNamedArgs = 0; , B/ y! u: o8 Y9 I " Y z' P5 k+ D' x4 O var.vt = VT_EMPTY; 3 B8 Q/ z: [4 B6 ~+ U6 W 7 d8 i8 K. t' m. c// Call IDispatch::Invoke() ) y: ~; t/ c& l1 v ' a1 L! S2 {7 H* Z7 |# A. g hr = m_pDisp->Invoke(- w4 ]- u$ U7 N M x; K# `
requestID, + D& c) {8 \0 C# b IID_NULL,% b7 [$ j" t3 X. A- Z
LOCALE_SYSTEM_DEFAULT, , K8 l% _$ a- p DISPATCH_METHOD,# Z d) \9 V" b* S
&dp2, / |) q5 X$ p# {; }1 _ &var, : r% {5 N" B- T6 ]3 p e &ei, ( [% A# }8 ], X; r% b6 C8 P4 _1 s &uiErr);7 C, ^2 V7 A) `