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:2 z7 m8 R, M6 Y, W8 S
Name = (WCHAR *) L"Poke"; ) w3 M* [" f! y6 w" t. V0 Q 9 d7 [& \# ~/ X2 x' G hr = m_pDisp->GetIDsOfNames ( 4 r1 y% z" H5 Q( P8 o IID_NULL, // reserved+ r& N' [# d3 l9 M5 e6 L! s# J7 h
&Name, // Array of names to get IDs for 7 Y0 I( Q2 r2 c3 o* `8 L 1, // # of names in the array. M4 p M4 o* W5 d' X
LOCALE_SYSTEM_DEFAULT, // System locale % h, q5 [5 R4 P) O &pokeID); // Array of IDs to fill on output5 w9 O) Z$ M! ?- M# K+ Y
, v. k: ^0 r) u+ j* b* w if (hr) ! C- v! Q& H) W2 E4 p {& d1 \. `1 [ @) w6 s* y4 Y
MessageBox ("Get Poke Unsuccessful");+ x# n: M% |3 Y' o% D" X* J
return; " I, o( n7 V* f/ w6 R }4 ^; {1 {7 @/ B( V0 [
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/**************************传递数据给extend**************************************/ " ^3 H, w) w7 r6 b/ {) N- p) O% Q; R/ l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & o" p$ H0 s# v% E 2 f3 N! q" l/ J" e4 u
valueStr = SysAllocString((WCHAR *) L"1232"); . w5 A' u7 f8 a- X/ S, k VariantInit(&pokeVariant[0]); 4 C6 P4 \/ J, P" T. x pokeVariant[0].vt = VT_BSTR;$ r/ v% O* E% ^8 c. `5 `" `+ L
pokeVariant[0].bstrVal = valueStr;8 ^ c. w d5 ?& }* W0 K+ l [
5 \% @( y0 Q; m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% w$ ]7 w9 O8 I5 g
VariantInit(&pokeVariant[1]); $ w6 f0 P" O1 O) d; ^. I; p: _" Y
pokeVariant[1].vt = VT_BSTR; " |3 r {# d+ H. J2 ~ pokeVariant[1].bstrVal = itemStr; - X2 x8 g% F) t4 y+ p . d- V, _- I8 n6 k7 j4 T) a topicStr = SysAllocString((WCHAR *) L"system");; X9 f# ?" A. l8 ~( @# n
VariantInit(&pokeVariant[2]); 6 y7 s5 j7 k' V) ^/ U! k# e& r pokeVariant[2].vt = VT_BSTR; 0 e% [5 H4 J; n- X2 X0 d pokeVariant[2].bstrVal = topicStr;4 j: ~ D# w$ q& ^: U4 Q* E
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// Set the DISPPARAMS structure that holds the variant. 3 e$ H6 V" l$ \ , L6 L! C' ~1 j1 i7 d dp.rgvarg = pokeVariant; : @0 V, s' Z/ k8 T; P+ H N, { dp.cArgs = 3;5 j1 i7 y) O: k2 A
dp.rgdispidNamedArgs = NULL; ' \, y+ E/ B' ]/ f; @6 e dp.cNamedArgs = 0;5 T* N0 E9 ?7 e: y( a" }2 @; }
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// Call IDispatch::Invoke() ' ~' s* P# [1 r3 E# f O; A7 S6 a: N N' u
hr = m_pDisp->Invoke(% f0 |1 L0 b4 p7 d" M9 a I- y
pokeID,- q3 @6 d& q+ J9 C6 o, `; |
IID_NULL, & z j) I& z& ^2 T LOCALE_SYSTEM_DEFAULT,+ V4 j1 Y& I% D# |5 @7 @
DISPATCH_METHOD, $ W2 K2 u' j' e/ W$ o: H: A; \ &dp, - u. w* H% w4 E4 [+ E2 z0 } NULL,# e2 r) _7 \, {
&ei,, B4 m# {* Y, k! _
&uiErr); , @! z9 Y' q% L- R- e1 n1 h/ w* _5 C, w9 B, d3 n
SysFreeString(topicStr);) B% k5 ~. E0 V
SysFreeString(itemStr); ) L, ~3 h: Z1 b1 A+ V SysFreeString(valueStr);; r. e* |0 \; O
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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???4 Y; F( ~( g. c. A: u
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????; N3 D1 @4 ^ c) c+ ?
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8 q! y+ [" U4 ^& C2.这是request的程序 & L6 n7 L" M: A) D: F, N2 S// Request a value from Extend 1 V" ^) `% q- W0 X4 f( E// . P; Q6 X3 I- z5 ^& P// Initialize the variant that will hold the BSTR. Set the variant's 7 k9 W- ?8 j+ E7 g! j/ t( }// type flag to indicate the fact that this variant holds a BSTR. Place the 4 N7 ?' ?. K1 Q9 O& ?% X// BSTR into the variant structure. : s" Q# {" Y2 V. M/ A- D3 Z + q' a8 q0 D; L4 b$ f' g2 n. O* D6 m requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); H: |. h6 N T3 p 3 ^( C: f9 N! V h8 [9 l/ {% k
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " @8 j& d( i A5 Q VariantInit(&requestVariant[0]); 0 i2 D5 O; Z3 o% G/ H! d+ O& @
requestVariant[0].vt = VT_BSTR;; v1 ~! X; m( t6 `' f0 B0 i# Z. d
requestVariant[0].bstrVal = itemStr;1 V; d2 \. @+ f( u8 f( W
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topicStr = SysAllocString((WCHAR *) L"system"); - S [6 Q: k) ~ G# S5 D% | VariantInit(&requestVariant[1]); 7 v# e0 T$ d. ]5 ]4 c/ s
requestVariant[1].vt = VT_BSTR; # T9 K+ Y. o, S4 E, X1 f: K requestVariant[1].bstrVal = topicStr;4 m8 N1 O, h) V* S# |
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// Set the DISPPARAMS structure that holds the variant.$ F$ }* _ Q+ y- q
% t/ b9 L4 D2 V! d% g- w0 ~ dp2.rgvarg = requestVariant;! ~+ t* z4 u2 A+ m; [+ L9 J
dp2.cArgs = 2; , x* o) n5 Y# v3 Z4 h, u% f: \* n dp2.rgdispidNamedArgs = NULL; 4 ], H. c2 g6 C5 P, o! G dp2.cNamedArgs = 0;+ C+ B. O1 ~, [ S/ s T; N: Z
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var.vt = VT_EMPTY; ( w; D" J/ ?6 p( y6 _3 q I$ E! y" t) d; r- O1 C( A H- n" e) t
// Call IDispatch::Invoke() ! I# b) S4 X$ }; V% |/ |% Z; q- s* g+ A. w& w
hr = m_pDisp->Invoke(# _& w( D. `+ B) b' n7 y2 q
requestID, # j$ R) k/ X6 [5 ` IID_NULL,% d7 E4 E2 n9 ~) T) q
LOCALE_SYSTEM_DEFAULT, ' f8 T8 ^3 T* q/ H7 Q# v DISPATCH_METHOD,+ g, t) Q* E# e6 V! k6 [
&dp2, 7 E8 O( @0 z' E &var,* K# J- s& J$ B# _5 H0 R
&ei, 5 i( O$ n- y& T" m+ l &uiErr); 6 {/ ?/ M* U6 T/ w& W 1 p& k4 J5 i7 O. w \/ B- O: [ SysFreeString(topicStr); - {* w9 a$ N' X9 o SysFreeString(itemStr);7 R: B" k7 C! s) o* J }
请问该程序是获得extend里面的哪个值? - K- }2 b# ^" v' N: k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????