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:. ^! h" [" X. \- L) F, Z1 t
Name = (WCHAR *) L"Poke"; / q) g7 Y# u q1 d3 Z 5 g) |) b! B0 h4 p' }" s
hr = m_pDisp->GetIDsOfNames (2 M6 k7 B4 R2 t/ n% c' s$ q# W4 J
IID_NULL, // reserved 0 t: [. i7 x- L+ T &Name, // Array of names to get IDs for 2 q0 s" ]1 ]3 g! y8 P+ _& X 1, // # of names in the array0 C! m; c g4 o5 h
LOCALE_SYSTEM_DEFAULT, // System locale " X# _# |0 p2 V6 B& | &pokeID); // Array of IDs to fill on output / G1 \" S' x1 z/ p$ f- b ; D3 [% A# R% W# j% H6 [4 u0 |
if (hr)4 ?# Q) J6 M; P6 s& q q/ w+ k$ u
{ : L) J4 S6 H X; w. C8 X MessageBox ("Get Poke Unsuccessful");/ F, r9 F- Y. K: f. n U4 T
return; # @. g9 B# `/ g- y8 B0 n } J6 G$ U- m; ?3 T" N# [6 X- L4 t ) f' |7 M, Q$ Z. q3 j/**************************传递数据给extend**************************************/ * t6 X) p" `9 @; ^ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % [; V) h& S3 d# x4 k2 @! s- S/ l 5 Q( O, a4 ?# S valueStr = SysAllocString((WCHAR *) L"1232");# e0 n$ j# z: j2 `
VariantInit(&pokeVariant[0]); , N( v' s) X/ B' s& l- l pokeVariant[0].vt = VT_BSTR;" M4 n) |# S! X& V. q
pokeVariant[0].bstrVal = valueStr;8 c5 E1 {# s+ B! }6 |
, d7 L. ^- Y- y6 Q, H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # t( {8 W8 M8 d# V. j VariantInit(&pokeVariant[1]); 9 F' s- N7 f7 R pokeVariant[1].vt = VT_BSTR;( | Z$ O; [/ P
pokeVariant[1].bstrVal = itemStr; " e7 l3 g/ w! w& l% k- F ( k7 Z' y& L( I, k8 G( F4 ` topicStr = SysAllocString((WCHAR *) L"system"); ! A5 U+ J2 s$ m VariantInit(&pokeVariant[2]); . [4 E0 }8 ^0 F, h0 |
pokeVariant[2].vt = VT_BSTR;: h t- D( B+ x7 n8 d
pokeVariant[2].bstrVal = topicStr;/ f( X$ D0 X' }. Z; p7 g
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// Set the DISPPARAMS structure that holds the variant. 5 `; w! {/ j: N) P& ]( E' y. i' N' Y2 H
dp.rgvarg = pokeVariant; 6 \; n$ x) r- v0 b: x2 { dp.cArgs = 3;- D" D9 A1 i& W' j0 s* V
dp.rgdispidNamedArgs = NULL; ' v% V- d5 j" Y3 [. ]$ Q dp.cNamedArgs = 0;4 }! P, i% x6 y) p" B4 i/ v p' R- i
/ O0 R( ~5 a6 y( [// Call IDispatch::Invoke()9 ~! I% T v3 r u7 R1 y
; q% u3 Y" \+ u4 _ hr = m_pDisp->Invoke( $ {: K4 p2 ^7 T) x: y pokeID,9 a% l$ |) U6 I' P" p( L* x
IID_NULL,$ t W$ m+ z1 u- @, n
LOCALE_SYSTEM_DEFAULT,! O: T0 L' d3 V; F/ x/ ]1 `
DISPATCH_METHOD, + Q2 F0 K6 T: N/ Q( N+ X0 ?9 C &dp, 7 v/ X1 Q6 U! A1 U" }6 m' I' L NULL, 5 r: \( W4 F/ X0 X% {" g &ei,7 w3 G* f. @& ^
&uiErr); 5 v; C- W- ?6 V . e1 F! K* c( s g* ` SysFreeString(topicStr); * s: N) c7 Z; H SysFreeString(itemStr); * N* ~% `* T3 d. x# u SysFreeString(valueStr);8 V; c" z- a# l/ h6 c4 R; n" m
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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??? / K3 A6 n6 `; B, j/ D9 s8 ?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! T8 [8 l
- Q+ N* Y' s& s! _3 ? 7 |& d) A- ^. \' W' B2.这是request的程序' I" Y# ?* @0 w7 I3 h
// Request a value from Extend : Z1 y+ b& Z9 s u// ' A4 O) L- Q7 h// Initialize the variant that will hold the BSTR. Set the variant's+ t; W1 S5 z/ Y. H% |
// type flag to indicate the fact that this variant holds a BSTR. Place the: D* t# a7 O8 W D
// BSTR into the variant structure.( ?( t5 ~1 J$ p2 |( [" q2 a4 v+ I) Q
* S& A$ U7 v$ `7 h Z0 H8 v3 { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' p! u& U1 [! \& y+ ? + _1 G7 ]1 {; _& |! j; b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / v, A, j, H6 {" W3 |. a VariantInit(&requestVariant[0]); 3 J k6 X6 I' e9 g7 H7 C requestVariant[0].vt = VT_BSTR; / g& F% D+ a. A5 a) D1 o requestVariant[0].bstrVal = itemStr; w6 Z+ y n! t, D- L/ v9 G1 w 3 O* ]& \5 R; p' g$ H5 L0 s8 f% {- r: ] topicStr = SysAllocString((WCHAR *) L"system"); ! {3 M. Q6 T# \8 K8 ~6 ^: R# k VariantInit(&requestVariant[1]); " b+ C! H6 c+ `1 E [ requestVariant[1].vt = VT_BSTR;, R3 E4 O* U# I# M+ _6 {! f# j% o
requestVariant[1].bstrVal = topicStr;/ R- s w5 N5 \
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// Set the DISPPARAMS structure that holds the variant.3 U2 Q5 H$ h! Z; X7 v) _
4 E7 a5 y, [9 h& o8 ]% n. ? dp2.rgvarg = requestVariant; ) x/ V% P z% {' Z2 H* X; k/ Q dp2.cArgs = 2; $ p" w* h9 G; v8 _' D dp2.rgdispidNamedArgs = NULL; / h4 [1 p4 o* Y4 ? dp2.cNamedArgs = 0;8 I3 H/ f/ \- l8 M7 q$ A- \( b
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var.vt = VT_EMPTY; ; J1 Z, a7 H' K" w0 |) Q4 a- v: }# \2 R' T; Z8 Y N( e. g
// Call IDispatch::Invoke()% g! S% D2 |2 N! k; } F
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hr = m_pDisp->Invoke( ; v' E' F* j+ V requestID,: {8 `$ I7 s7 O3 q
IID_NULL,3 t- ]( t, K+ A# B5 Z3 C
LOCALE_SYSTEM_DEFAULT, # l# w. u: }4 X DISPATCH_METHOD,! r7 p' w+ o d4 W4 ~2 s
&dp2, . m5 E. c: q" s+ ?9 f$ G' y &var,$ p3 b }& \' b$ i: y
&ei, " V9 u5 ]+ n' H f& F: ` &uiErr); ^1 P' @, O# C6 J P, u: i & I Z( e6 T6 b6 Q; P6 m SysFreeString(topicStr); ' O3 A. c2 \1 y: m SysFreeString(itemStr);5 @# x/ }' d2 Y/ n' S K( S
请问该程序是获得extend里面的哪个值?0 N% W0 A, U2 L) K8 W( x7 _% \% S
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????