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:, |7 }" q4 ?; h* n5 Z/ X6 j+ v
Name = (WCHAR *) L"Poke"; 0 ~+ C, q, Q$ \3 Y) W: p3 D ( g: G& i5 \1 `
hr = m_pDisp->GetIDsOfNames ( ( u7 g( x8 g" } IID_NULL, // reserved % h# ] }. _0 x8 d5 v- l2 B &Name, // Array of names to get IDs for/ `4 s- ]' S+ C8 r
1, // # of names in the array6 a. ^1 T% q' n; s" ^
LOCALE_SYSTEM_DEFAULT, // System locale) }1 H: \- k6 e% {% c( j+ }
&pokeID); // Array of IDs to fill on output! A k+ a& u! O7 {4 P' f& n# L
3 j" ^8 h- @# `4 N6 `2 w2 Q) R- P; L if (hr) 5 ^# v# G1 B! J! h* E. ?1 n {) B; @# {' V& j+ B9 X3 ]. n
MessageBox ("Get Poke Unsuccessful"); 9 v5 n, |: c% U9 a4 M( e7 _( o return;* c0 q2 t2 f. x; Y5 o
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/**************************传递数据给extend**************************************/- ?1 O/ h, T% k# m6 \# X
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 ?: j/ y' B* D- W& a& e
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valueStr = SysAllocString((WCHAR *) L"1232"); 6 }: O' [8 G3 Q$ w5 Y% @ VariantInit(&pokeVariant[0]); 2 R9 O( ?$ H7 C5 O# ~ pokeVariant[0].vt = VT_BSTR;9 x, a0 L% [- U) N
pokeVariant[0].bstrVal = valueStr; & u6 U3 w# v3 c. J3 G/ B ; {3 |5 o$ o4 C R" a: ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 Q9 |: X, v7 y# q- G% h
VariantInit(&pokeVariant[1]); 1 B- c4 ~! }" O4 ?. f7 f2 h pokeVariant[1].vt = VT_BSTR;3 C! X1 Q& R& P% m1 }
pokeVariant[1].bstrVal = itemStr; % s! E9 g2 S* \4 P5 g3 y$ l; C$ B) H% ]4 N, Q
topicStr = SysAllocString((WCHAR *) L"system");. k0 z" a+ F& {# a; `6 `
VariantInit(&pokeVariant[2]); 9 E) T" N8 M: r) q, j$ |1 c
pokeVariant[2].vt = VT_BSTR;& |' O4 G3 c: f0 M4 G
pokeVariant[2].bstrVal = topicStr; & z3 ^) G& q! \4 k7 o* J4 G9 p1 k6 O
// Set the DISPPARAMS structure that holds the variant. $ a9 W% [ o$ D, K; ` `; `. Y! K# e dp.rgvarg = pokeVariant;3 K& |+ _, L; _( g( V- ^3 @. L
dp.cArgs = 3;- @, @: a+ S, A& n% P# a- J; x: _
dp.rgdispidNamedArgs = NULL;3 X+ C! d! S6 L* w+ d- \
dp.cNamedArgs = 0;: }0 S$ g* g- K) c, ]: G
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// Call IDispatch::Invoke() ' c k j/ b$ p& N4 g, ~3 I! D. m9 u5 W9 F' b
hr = m_pDisp->Invoke( 7 o* ?; g: V1 A6 q3 t pokeID, ; p( e+ t/ F" T3 U- N( s+ w" d2 r IID_NULL,5 }/ F; Y5 Z' B9 ] d5 c
LOCALE_SYSTEM_DEFAULT, , O6 ]* y; s" [; n/ d3 } DISPATCH_METHOD, 8 g7 x. K( H4 f &dp,, o$ L, P; Z- F7 I- w
NULL,% m0 i. ^1 d3 m" Q3 d
&ei, 5 ~4 S& M/ z8 [& T- O9 L7 F &uiErr); r7 d# X9 ~: G( B ! H- i! P4 d3 R0 w/ v SysFreeString(topicStr); $ V% s; M8 C: x) p% V$ { Q. U) D SysFreeString(itemStr);* j B; a* X- s3 q; U+ [
SysFreeString(valueStr); 3 K5 Y# s- \3 B- y: U. V3 b1 K) k& |/ o, A3 X( l4 i
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??? - ]; Y9 J( i2 I& }2 O, X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???? - @6 O! k% i: }% q3 o% s' p& A. B8 q+ s1 P$ q8 x/ [# v
/ R6 G2 x- u9 _' i; N' W2.这是request的程序 $ I, e$ j4 x+ L' x& S( ~+ u( u// Request a value from Extend 5 @& e* H g j% a// 5 n" q/ }. D7 O& [8 Z- {# c// Initialize the variant that will hold the BSTR. Set the variant's 9 D4 b( J) o# S! s& k) ^: j; X& {// type flag to indicate the fact that this variant holds a BSTR. Place the$ t" U7 e, y4 k0 [
// BSTR into the variant structure.6 @( F* q" Z! F, I% X; v( \
' A* j/ M& ]+ d( d: p' h7 P9 C requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% E- e& M# }8 t9 o/ ]0 @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' H& |5 |: [; p1 b) G- h; p VariantInit(&requestVariant[0]); " y5 O4 U) P& _8 ]+ j0 N2 J) Z requestVariant[0].vt = VT_BSTR;. X8 ^$ d4 o _! \9 b7 w0 p
requestVariant[0].bstrVal = itemStr; ) c1 R. ^' L; f# X$ A. Y/ B- {3 a. C1 B8 Y. R! P0 Y4 S. Q
topicStr = SysAllocString((WCHAR *) L"system"); , P, ~4 }6 F1 t' `( q& r VariantInit(&requestVariant[1]); T) U: n' @4 T% \" B0 x) Y; _
requestVariant[1].vt = VT_BSTR; 9 p5 w' \: D3 ^5 D1 L. {6 p requestVariant[1].bstrVal = topicStr; " o- Y4 k+ J/ q# X- X! K 9 A0 G2 Z$ K9 r% ?- U7 d5 ?// Set the DISPPARAMS structure that holds the variant.3 N: W. E3 o4 z- _, x# Q
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dp2.rgvarg = requestVariant;/ I5 T, E! [5 ^: ^2 X
dp2.cArgs = 2;* U4 u, |- B* y/ T# C! e
dp2.rgdispidNamedArgs = NULL;; \2 D w) q% |; _6 [2 h* k8 W
dp2.cNamedArgs = 0;: C* o1 J' m! ~, Z0 u