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:! V* \1 A. q9 T6 E
Name = (WCHAR *) L"Poke"; ! U( |$ n$ E" c8 F3 k- {4 P8 v7 G % l0 g D0 `, c n7 ?$ b! _2 ? hr = m_pDisp->GetIDsOfNames (3 A2 V& H. j8 P! g9 ^
IID_NULL, // reserved % a" C" ^+ {7 }" \0 s! d% O &Name, // Array of names to get IDs for" X. r- p" c0 ?9 d, \3 c- d. T! J$ `
1, // # of names in the array8 t9 S6 X8 T3 f/ f) y
LOCALE_SYSTEM_DEFAULT, // System locale8 [, H/ L2 O ?( q( }3 \
&pokeID); // Array of IDs to fill on output* G5 I; @" A# o* u. G/ g' a
8 I" V7 s( R$ u" @# z/ _ if (hr)* j: S) q3 g1 p: Q7 S
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MessageBox ("Get Poke Unsuccessful");) W9 s3 T& N' ?$ P% u* b5 r( Y
return;1 g' w- L0 B* ]4 _+ l- I
} * j7 t: w9 D5 T- N I( t" K" U O+ C5 ~/**************************传递数据给extend**************************************/; G: x3 ]! N) g# x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , S) j p) T2 o4 `) } ' ~+ P. C; k W: R3 p( f valueStr = SysAllocString((WCHAR *) L"1232"); g2 U% ]7 A1 N/ {6 C$ l* R
VariantInit(&pokeVariant[0]); , t' I' z# G2 N5 X* K7 y+ B% C2 V pokeVariant[0].vt = VT_BSTR;% `! _. s+ {2 a7 j5 A( ]
pokeVariant[0].bstrVal = valueStr;" Q( P* D" J. X! L; }* ^- N1 L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ o0 v6 F$ Z6 i) _# F VariantInit(&pokeVariant[1]); / {: N! G% \$ t4 w" ?1 y8 H
pokeVariant[1].vt = VT_BSTR; ?, B6 @& Z. a
pokeVariant[1].bstrVal = itemStr; 3 ]2 }3 `) a* S7 y9 h O* e+ h8 A+ W* ~
topicStr = SysAllocString((WCHAR *) L"system"); C* v; G; x/ W' n' y
VariantInit(&pokeVariant[2]); % \% F l! ]8 \; b pokeVariant[2].vt = VT_BSTR; ' @$ b. \5 n& g) R0 ` pokeVariant[2].bstrVal = topicStr;( `3 H. i4 e: s6 F' V8 C
& G4 a9 q/ R( Z1 e4 s2 C// Set the DISPPARAMS structure that holds the variant. * F( H }7 \2 a9 l [ 7 O4 Z/ W! ~' Y dp.rgvarg = pokeVariant; 9 L4 N/ p, z6 I- {1 J dp.cArgs = 3; $ _' K& T$ i2 q% _* D3 i4 v' A1 f dp.rgdispidNamedArgs = NULL;' Y$ `5 f1 x% o9 a" e E
dp.cNamedArgs = 0; - y9 a7 D! R3 c3 D+ K) i% j5 {4 u- u/ a8 W* E2 p
// Call IDispatch::Invoke() e I g; D5 o% S' o- T
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hr = m_pDisp->Invoke( . V1 ?0 m# u: `7 ^6 H" p; G pokeID, / s# p4 E0 Z8 R- B# M0 z IID_NULL,7 i- O! U$ O$ D: }9 y0 v. T
LOCALE_SYSTEM_DEFAULT, 0 X6 y; c" H1 z" E: D# z DISPATCH_METHOD,9 X+ J) C5 Y( ^: I3 \
&dp, & }6 h9 Y: w7 y3 o1 n8 Z NULL,( C: M1 y. A4 ], _8 N5 c. A; l3 O
&ei,- L+ D! v# U+ d ?, d
&uiErr);) X |* h8 U; t/ i" t
. d( [$ G( s+ O: Z9 p SysFreeString(topicStr);5 ]" M4 x% M8 q2 P9 \
SysFreeString(itemStr);" l S9 I# L# N" f# T3 s) \
SysFreeString(valueStr); ( Z2 w/ k2 ]+ S! W # E- D$ ]: u6 d {9 `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??? ; P/ V' ?2 N$ r# X4 `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???? 3 w+ X" ^$ P: b. c3 a1 A9 R1 q9 B V' n
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2.这是request的程序$ w, W ^0 s7 q! L; s/ R" j
// Request a value from Extend* V0 D! `* m" C5 w* h ~5 P; F; Q
// " [* k. N. u! @1 g3 a// Initialize the variant that will hold the BSTR. Set the variant's : z8 Z5 @/ r1 `, `+ l% s2 }// type flag to indicate the fact that this variant holds a BSTR. Place the$ ^5 b* I$ Y4 I
// BSTR into the variant structure.' A- Y0 _- b4 w# O: L
+ T! N6 A3 B3 h. g; J0 w8 y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ q+ V0 O [; J9 o8 I4 `, z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 n! F& c! @6 H+ T4 w% N
VariantInit(&requestVariant[0]); ' N7 X; Q6 E( u7 N3 z+ r! r) j- x) L
requestVariant[0].vt = VT_BSTR;0 i+ {0 s; q" o# j4 P# w" ~
requestVariant[0].bstrVal = itemStr; 5 J1 [+ P Q- }: i8 o- T- l F% R8 T* j5 k6 E( E
topicStr = SysAllocString((WCHAR *) L"system"); U( p8 x3 j1 |2 u$ N* t VariantInit(&requestVariant[1]); 8 x9 r" _4 K" R) q0 s N
requestVariant[1].vt = VT_BSTR; 4 A* d* r# Q4 L requestVariant[1].bstrVal = topicStr; , |% k& {4 r! N _; z# }9 _* p' y' [2 c5 o# |/ K o
// Set the DISPPARAMS structure that holds the variant.8 ?: ~- b4 E! g9 v8 ]5 d
9 V6 N( K0 Y3 `6 Q) k; G( ~( i/ u dp2.rgvarg = requestVariant; + v, g& c# P- f6 a3 S; R dp2.cArgs = 2;4 p- {% y3 Z7 C3 K
dp2.rgdispidNamedArgs = NULL; ; I- O5 L; h& z1 f- q" g/ r2 y dp2.cNamedArgs = 0;/ R0 w9 x3 A' |- W1 w/ X5 r. Q
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var.vt = VT_EMPTY;5 @& c1 k0 }6 E% g( |* F2 k5 v
& i7 j7 c6 J" S& ^: S i// Call IDispatch::Invoke() 5 o9 i# {% x$ D ! a2 P2 Z% ?! M$ J' W hr = m_pDisp->Invoke(' F# C: c1 Z2 |; u0 |1 d$ Z" ?7 l
requestID,& q- ?! H1 H/ [/ G2 W% N
IID_NULL, 9 W ]9 Q# g: B" x LOCALE_SYSTEM_DEFAULT, 3 D* {0 Y. ?9 J: S' _* ^0 G DISPATCH_METHOD, ; P% t" m d3 g7 Z' X &dp2, " t& v" B5 Q- @7 s &var, + v0 r+ X4 I# n &ei, % U/ i& @ H( g' W1 a$ s- U &uiErr);* |" F, y S1 D/ v( s8 d/ s) v7 B+ G
8 n4 Q% a" B* L2 a, a SysFreeString(topicStr); # U7 ^8 A8 Q8 I; \( S4 e* { V* g/ | SysFreeString(itemStr); Y$ t9 M# C/ @请问该程序是获得extend里面的哪个值?6 c1 ^% N' B# E( A4 m2 e8 B5 E
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????