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:8 ^8 Z- x" d v9 h0 R! K
Name = (WCHAR *) L"Poke";7 J# v% O P7 p" ^
3 s( d) c0 O/ S- d hr = m_pDisp->GetIDsOfNames ( ( ~ B; l) d' H6 t IID_NULL, // reserved0 U' }: p* K7 O# I% E9 s' n
&Name, // Array of names to get IDs for! q+ O" ]. c' p* @/ w+ J( N4 A) e# X
1, // # of names in the array 7 t2 {6 p5 e/ Z, E) d" G$ ~8 U LOCALE_SYSTEM_DEFAULT, // System locale& Y. f6 i/ \; k- {" }
&pokeID); // Array of IDs to fill on output # G, b9 M/ | ~) M, G # l8 G. X8 ?( A
if (hr)* V2 d/ d- i- ^; ?% _! Q
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MessageBox ("Get Poke Unsuccessful"); . I4 i4 N1 h6 F; r! v0 J3 n1 n return; ; g3 D6 {8 t( ~' E# \8 g6 u }; \: Y4 ~' L9 _
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/**************************传递数据给extend**************************************/ 0 X3 y! q1 `4 B3 k! S; L# S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * z6 l5 M0 [& O) t* T : e7 q* n+ r' P$ j4 p
valueStr = SysAllocString((WCHAR *) L"1232"); # V% \3 r2 H# l1 |4 a VariantInit(&pokeVariant[0]); 0 X/ i" I! g) T Z1 R
pokeVariant[0].vt = VT_BSTR; - ?4 [9 g( a4 r" W s pokeVariant[0].bstrVal = valueStr;1 [- o9 C. l. V$ X
) ?6 s/ ~- _) d! K; A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' |5 [8 ~/ R6 c* U/ V VariantInit(&pokeVariant[1]); 8 q0 Q% J+ v+ u& h' _: f( U* ` pokeVariant[1].vt = VT_BSTR; 2 z9 ]' `% |) M& M( H* Q* ^ pokeVariant[1].bstrVal = itemStr;6 U7 A2 w4 V8 \- k; {9 P
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topicStr = SysAllocString((WCHAR *) L"system");7 n Z1 o& l# y4 }. _* S5 l
VariantInit(&pokeVariant[2]); 7 D$ N" Q5 _1 Z" L. M
pokeVariant[2].vt = VT_BSTR;" N1 K ~( m6 h ^4 U
pokeVariant[2].bstrVal = topicStr; ) p$ H/ m2 B2 M& _+ O b$ _4 T: s: \
// Set the DISPPARAMS structure that holds the variant. , s3 C \$ e& [2 P* u. i+ b. T 4 z0 Y& e2 D0 C" s dp.rgvarg = pokeVariant;! U' T0 q/ u% ]* W' M
dp.cArgs = 3;: v4 x( I! j5 P: a {8 q. r% ?$ h
dp.rgdispidNamedArgs = NULL;, K' x; R9 Q. g. M2 ^0 c7 y7 T
dp.cNamedArgs = 0; & K) {2 h. {/ a- H$ P J 7 Q/ d* t' g% H+ b: P1 l( [// Call IDispatch::Invoke() R6 x" k9 Z3 M& b
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hr = m_pDisp->Invoke( 6 Z# i; X W* t" L pokeID,# w- _6 u1 L5 R" Q2 y/ g
IID_NULL, i- D5 P* }, o2 t* i3 P LOCALE_SYSTEM_DEFAULT,1 } {- ~. i, O# M0 Z
DISPATCH_METHOD,/ H9 g1 m- L1 R) e% I
&dp,5 h% ]8 _0 {5 O# K8 f
NULL, " ]4 e- O2 U$ |* m4 f9 [& L &ei,4 X6 t% }: h6 N% Y9 ~. y
&uiErr); 0 u5 Z% y' e P; e: }$ h. S A6 F% `9 K
SysFreeString(topicStr); 9 X. @7 z# `) n* j+ b SysFreeString(itemStr); " f7 g1 G- x0 ^% Q3 Q SysFreeString(valueStr); - C2 P+ d# H1 a, N1 j/ u& p( Z% e7 J
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???& Q7 F" s1 Z7 k+ I* | E; C3 I- Y
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????, P6 q! O+ u- P: W
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' i4 L: L- J1 p( T# ^. q2.这是request的程序4 W2 F7 J; F. R+ G( n% Z+ {6 r% G
// Request a value from Extend$ N. i/ y$ F7 s y. b- N9 M
// ) H8 D O6 X& b! H7 D// Initialize the variant that will hold the BSTR. Set the variant's7 P: V& B7 m* D2 o# G. I
// type flag to indicate the fact that this variant holds a BSTR. Place the , z9 ?$ c5 D/ {3 n. P) }# S8 r// BSTR into the variant structure. 5 q9 o% `6 O" K" ?/ P U) C+ J. w
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ e$ |( c5 V& w% O# W: `, o1 S
) k5 n: k$ n0 z1 l6 C7 k& C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 r2 `! k$ Q1 c$ [$ @- g; w VariantInit(&requestVariant[0]); # H: S" |# z* a9 H4 c8 Q requestVariant[0].vt = VT_BSTR; ' O+ z( g% i* q; {5 d2 R3 y* a requestVariant[0].bstrVal = itemStr; 3 q( S! _, ?1 W1 @1 r' v) V ! U2 q: _& \7 \7 P O topicStr = SysAllocString((WCHAR *) L"system"); 5 N9 M. I2 M I VariantInit(&requestVariant[1]); b+ S4 y9 \ Y% X; l, u$ P
requestVariant[1].vt = VT_BSTR;% o$ O1 @( E9 A. s* B0 b
requestVariant[1].bstrVal = topicStr;* {/ @) Z) k- [1 d& s
: `9 c* v+ r7 O- X// Set the DISPPARAMS structure that holds the variant.' W7 m5 c4 s. ^! b
) n3 Z/ |. @, t( { dp2.rgvarg = requestVariant; - C7 ?+ J1 q: h2 g4 j7 {6 l1 h; C dp2.cArgs = 2; 4 N( X4 S( ]2 E6 O" }8 W dp2.rgdispidNamedArgs = NULL;. v8 @& S5 [3 `9 b9 {( B! L: T0 ]
dp2.cNamedArgs = 0;3 X, Z9 J. w3 B C; e) C4 {" y1 H0 W
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var.vt = VT_EMPTY; y. o- @% o* F9 E5 \2 q P7 V
% d% m C# Q s4 o// Call IDispatch::Invoke() ( c% Y1 i5 i O5 j2 M6 \1 h 7 k2 J5 D% W' N hr = m_pDisp->Invoke( 7 m5 M r' ]. h5 R8 M& Y requestID, 0 W) R6 ?6 P7 k3 x IID_NULL,- D3 M& {0 |" k& [9 D( z# L
LOCALE_SYSTEM_DEFAULT,$ c6 o9 o% l1 }5 V
DISPATCH_METHOD,8 M( ~- G- b; Z6 y: |8 b% @
&dp2,* P6 b2 e$ F* u O( Q4 a
&var, 4 G, N) d+ S0 s9 c4 |0 H &ei,# y% T7 Z! R0 m- u/ ^1 D% B
&uiErr);" \" J# ?1 s. S) K& \6 O, Y
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SysFreeString(topicStr); 6 o4 E+ n3 z) n1 Z SysFreeString(itemStr);4 m8 C9 i: D- L2 M8 R' W
请问该程序是获得extend里面的哪个值? & B4 J6 |3 j4 p8 }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????