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:* n. w3 g; S- e- O
Name = (WCHAR *) L"Poke";& M. s& K1 X( L. y
2 e& X* v2 g) o( t( `) U hr = m_pDisp->GetIDsOfNames (0 c" u- L( N( m' G r
IID_NULL, // reserved6 [' d* y; h% S# e' D
&Name, // Array of names to get IDs for) h+ S; ^4 h5 i! j+ N" m; j
1, // # of names in the array ! w1 ]$ Q9 v/ _! |$ \5 ` LOCALE_SYSTEM_DEFAULT, // System locale% H' Z h, q7 G0 `8 B- z
&pokeID); // Array of IDs to fill on output ; `4 f0 q3 C6 v4 F# n" i5 w 2 g. c4 D: n' F9 Y+ g( a/ L' o }
if (hr) * }8 H: C( [" z8 p {& [4 b% q/ T4 b7 W. S" e
MessageBox ("Get Poke Unsuccessful");1 ?+ Y2 R4 |( D: u; H: H9 m: S
return;1 q9 [* P8 s7 x# Y
} ( m' \% @5 q* ?) K/ B( W # Y2 @5 _) O1 g+ Y- {" @6 n, b9 ~/**************************传递数据给extend**************************************/: V5 R# q3 k5 t. u. m- Q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);2 m0 j5 O }# X8 `. R" O
9 B3 L% K, o$ F( ~ valueStr = SysAllocString((WCHAR *) L"1232"); + U. J" c$ E' P& A% c) w- ] VariantInit(&pokeVariant[0]); $ B8 J6 e& j) Z/ W0 T. F; ~
pokeVariant[0].vt = VT_BSTR;( e4 P8 K( N Y0 s4 I
pokeVariant[0].bstrVal = valueStr;1 R- u4 A* a( e. U/ ?2 }
4 a$ _- u0 Z1 e$ E// Set the DISPPARAMS structure that holds the variant. + j( f# a q! d# P + i" a! P, _# Q. V3 `7 H5 e dp.rgvarg = pokeVariant;! z! ~6 @4 o3 d% t4 k2 u$ ?
dp.cArgs = 3;' G# y5 W( ~5 N& X2 y: j
dp.rgdispidNamedArgs = NULL;8 H! l' j6 Y9 L
dp.cNamedArgs = 0;+ p' s+ R* e: t0 _, W. m* z" A0 h
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// Call IDispatch::Invoke() 2 A* y$ Q8 D& J" O # g& u; v& {4 L8 k* N- Q$ e hr = m_pDisp->Invoke( - @& y4 `) e& g pokeID,0 }" u" I1 L4 Z" p$ F* q
IID_NULL, 2 B, e5 P' I) g! F, V LOCALE_SYSTEM_DEFAULT,9 \; J7 I* v& D5 u# l- ^! D: w
DISPATCH_METHOD, $ f2 g2 R% y, u3 J &dp, $ R6 c4 R6 {! O: P# J NULL,+ U+ [$ r4 {. F
&ei, % {" E$ h% n7 H+ D7 G &uiErr);: |0 X! \ f9 N# ]
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SysFreeString(topicStr); 6 v& L4 [- t% p F SysFreeString(itemStr); 0 C2 T( r9 t$ q- v4 {/ s2 [# m SysFreeString(valueStr); # [3 F% D/ A; \; v7 r8 p( L: `; ?( x h! V
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???$ N& }1 D/ }3 {! ~
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????7 W) G0 b9 A5 T! l, P E
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' d/ i/ t+ D5 G2.这是request的程序6 B) u1 j( I; f
// Request a value from Extend6 l/ ?$ y+ S; H% C" C1 N0 v
//& b, q) N G: |, m
// Initialize the variant that will hold the BSTR. Set the variant's ! W7 U/ B# E* O2 T+ t- ^# s// type flag to indicate the fact that this variant holds a BSTR. Place the# m' t3 b+ T8 w( f
// BSTR into the variant structure. 4 Q. j5 m" z5 e5 `+ y5 J* c0 @ z' _+ J0 a0 O! a. u! g requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # | F" I0 X, M9 c" K6 B - q8 V1 ?8 D9 V, x2 D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 \9 Y6 o" s0 a* s- S2 E! O. {6 Q$ D VariantInit(&requestVariant[0]); }# A9 U* X x) t6 J3 _# O; ]+ \, B requestVariant[0].vt = VT_BSTR; - } @ c! Y( ^$ x1 y8 M. r! B requestVariant[0].bstrVal = itemStr;; X# q6 S+ [4 Z5 p1 P
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topicStr = SysAllocString((WCHAR *) L"system"); ( [1 p8 g) @" V }7 C& R- f VariantInit(&requestVariant[1]); 8 [; s) N6 g6 K' R5 m) D7 d R7 G
requestVariant[1].vt = VT_BSTR;! }) r& o+ s: j) e, r4 \% r' X
requestVariant[1].bstrVal = topicStr;7 m- |& a& l# z: O
4 a, F7 C4 G9 o' w0 k// Set the DISPPARAMS structure that holds the variant. ) {! t, T+ h9 m' k8 S y 3 `$ @" k/ B* \. u5 D dp2.rgvarg = requestVariant;) i/ v, p. i/ [# L1 i/ S
dp2.cArgs = 2;: S5 e% H0 H) u0 e4 V
dp2.rgdispidNamedArgs = NULL;: F2 k" w% Z5 x4 R: ^
dp2.cNamedArgs = 0; ; K3 S( P3 J# M& G7 M 0 w e, b/ H9 N var.vt = VT_EMPTY; * ^4 _; X1 I+ v( R: X' m * {. u1 ?3 R9 \9 N8 E* ~/ L// Call IDispatch::Invoke()3 _4 b" `0 [) X1 {3 j
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hr = m_pDisp->Invoke( ]6 G' N+ q" j6 a$ \, i4 B. H
requestID,+ g% B) ?/ l, N k* V' P0 C1 v/ I6 Z
IID_NULL,* b- Q5 k$ Y5 u% t; t
LOCALE_SYSTEM_DEFAULT, ' n1 y5 H1 u- E. H" e. ] DISPATCH_METHOD,9 y9 D% c! P2 K7 b) v' C
&dp2, ; h0 }& J% t0 H& w( x9 m) _ &var, ( x/ O% {2 q9 F, \6 }/ \, l4 @ &ei, 5 K9 r: Q: M3 m/ K) m7 O+ | &uiErr); ) V3 ?6 A$ @5 W& I9 c, |% y* n " X. `/ C4 g- S SysFreeString(topicStr); ( z5 u, o4 x# C+ G9 J SysFreeString(itemStr);8 a* c2 H2 P/ c9 i( g2 e- u
请问该程序是获得extend里面的哪个值?: x* d0 a: K. i' N: ~) F
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????