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 `4 @# f J; I
Name = (WCHAR *) L"Poke";; h/ }5 H4 M, e
/ w6 D) _, D& @. E2 b( _ hr = m_pDisp->GetIDsOfNames ( ; J8 i0 b1 d2 Y" \4 s4 O+ a IID_NULL, // reserved , p: N* j2 F: T/ W5 M5 S/ r( g &Name, // Array of names to get IDs for7 w9 p& d% K, w4 r7 }
1, // # of names in the array f+ O/ {3 K5 K: Z6 ]
LOCALE_SYSTEM_DEFAULT, // System locale0 b4 b( w v8 _: T! a6 a
&pokeID); // Array of IDs to fill on output " x1 Z/ ]% [/ ]% p; ~9 g6 Z$ ^" _ 6 m9 e4 L# ?9 X* U2 d
if (hr) ! u& U9 q% n& x m. {# Y { / r; ]4 W+ ~( ~/ R. g) Q MessageBox ("Get Poke Unsuccessful"); / p) o# ~9 k) i& L return; 7 b$ n$ A4 y$ s/ s0 \6 L1 p }$ q; R3 j+ O) d8 s/ P+ H! V, t
" m' y T) A+ V) C/**************************传递数据给extend**************************************/ " t. m; ]+ i' j* G$ C; M" g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 {' G1 E3 Y3 p
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valueStr = SysAllocString((WCHAR *) L"1232"); & E; T" j# [0 ~2 a VariantInit(&pokeVariant[0]); $ Q0 n; W' T, {5 u* J
pokeVariant[0].vt = VT_BSTR; : D' d) u. ~; x+ h6 Z+ k pokeVariant[0].bstrVal = valueStr;% c* |/ ^9 `: C8 Z7 l; N
- N! k. k" b% s4 Y$ i topicStr = SysAllocString((WCHAR *) L"system");1 v2 a- _2 B( @% E, Z# j1 d
VariantInit(&pokeVariant[2]); ]3 w7 b/ x0 Z" L- {1 h
pokeVariant[2].vt = VT_BSTR;$ y- o% n( O* F4 ~* C
pokeVariant[2].bstrVal = topicStr;3 s, [. u# g- q4 `: J
# D/ z% u* v- d8 f// Set the DISPPARAMS structure that holds the variant.* i/ t- m" }, ]9 P6 Z9 Z
/ F4 [& v1 f4 N, @ dp.rgvarg = pokeVariant; 3 E/ u7 V$ J# a8 K2 u/ M dp.cArgs = 3; 3 u4 u- A3 t! W9 m dp.rgdispidNamedArgs = NULL;) i) a- N/ R" Z: C) B: K
dp.cNamedArgs = 0; % O. r# B" F ~5 I1 E2 _" H3 ` g" P' Q5 _0 [
// Call IDispatch::Invoke() & K9 I: ]+ M$ K# B- \; | ( {* i# F# U; [$ p hr = m_pDisp->Invoke(1 Y3 s: ]# V. S1 k8 N
pokeID,) @/ z- Z8 E! Z/ G9 b1 I9 Q
IID_NULL," `6 ^) N0 M# m! d j1 M* P
LOCALE_SYSTEM_DEFAULT," i7 h# s) ]' I; w9 ^; Q
DISPATCH_METHOD, 6 N6 d; ?. o( q. Q: o &dp,) \8 o# k: u1 W; p& A& Z
NULL, , Z, u4 Y" L* y# q &ei, 7 T9 |* K" x# u- {& {2 H &uiErr);7 \0 K; s5 J6 {) N1 Z# W$ \
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SysFreeString(topicStr);" N3 n! Z4 U6 f8 ^; l
SysFreeString(itemStr);3 a5 N, H% H5 J9 x
SysFreeString(valueStr); + _; v7 U1 ?, @2 {: E/ W% O4 F4 F- n4 a, ` |$ V c( c
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??? 9 x- b, L3 }* ~: o7 Y8 k& e6 y5 \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????/ ^/ b- m0 r1 F0 v. ^% R
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% v7 I5 f {( I# X" ^ h2.这是request的程序; R5 z; `. D+ d3 n3 v5 d
// Request a value from Extend 5 H' N7 f0 X% N& g//5 |6 o' E2 A3 b- v
// Initialize the variant that will hold the BSTR. Set the variant's2 v1 R1 o, L0 D8 c0 W. y. O( z
// type flag to indicate the fact that this variant holds a BSTR. Place the" u0 Y0 z7 Q" F2 @+ r
// BSTR into the variant structure.+ f2 H" f( j; s- [
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; J: ~0 b+ W+ f
0 Q! J g. I6 j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 c! [( e- m% n) a
VariantInit(&requestVariant[0]); : i0 M; v. H5 j& S
requestVariant[0].vt = VT_BSTR; ?( u7 m8 _! t requestVariant[0].bstrVal = itemStr;) x/ O/ D- C# u4 U+ }. I) _
2 b; h" A9 G6 M topicStr = SysAllocString((WCHAR *) L"system");0 w- l: ^: l2 I1 I
VariantInit(&requestVariant[1]); 9 ^6 i2 O4 J2 k j9 i
requestVariant[1].vt = VT_BSTR; 5 y- M1 m# Y: [0 S1 b% g requestVariant[1].bstrVal = topicStr;$ s5 \( ~# [, k
! ^; d+ T0 i: Z) J; k' k: B// Set the DISPPARAMS structure that holds the variant.7 P0 E0 ?$ d" N- p7 a- M
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dp2.rgvarg = requestVariant;4 c* E4 w! C) V' f% m
dp2.cArgs = 2; 9 t S; F( ^% t5 t! T dp2.rgdispidNamedArgs = NULL;* `: W4 y9 W6 X' B( x3 `
dp2.cNamedArgs = 0; P" {% Y0 F' Z$ E: \ l$ s0 r
& e; {3 F, e' W% }) @/ m var.vt = VT_EMPTY;& x$ ~6 R% p0 P+ F8 {( {% w! l
: \# R! }' i B6 ]. F
// Call IDispatch::Invoke()$ G" c# z( }1 B( f
5 Z/ `1 [( Y0 n: V( |( D4 @ hr = m_pDisp->Invoke(6 v4 V9 U" q# r3 w* S% ]
requestID, 9 T- B8 f# m4 Q" P' d* K' ? IID_NULL,5 @9 I1 q" Z# I. _1 c/ l' Y
LOCALE_SYSTEM_DEFAULT, l. W8 k5 c: i- x$ q DISPATCH_METHOD, 2 ^% R7 X$ f; [4 J &dp2, ' x5 z5 h( _" N4 E) D &var,% o, ?' Z. R( L4 @6 w" ^ T8 ~, N8 W/ E
&ei,- X! x7 J, g" x$ e6 i
&uiErr);1 L+ c ?2 }7 Q! w, F1 S5 Z, V
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SysFreeString(topicStr);3 p3 [. T/ @& [2 d: k; R4 p/ l z
SysFreeString(itemStr); ) ^, J; K/ P/ S% [/ _' ?# u" O, i请问该程序是获得extend里面的哪个值? 1 B% }: W3 G- j8 `* m S" c/ Y! v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????