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:$ }7 ]0 Q! {1 D
Name = (WCHAR *) L"Poke"; % n2 q% h9 j. L0 B; K B8 O 0 s2 Z& _: Z8 [- K1 ^ hr = m_pDisp->GetIDsOfNames ( - ~6 c: T* O8 k5 m IID_NULL, // reserved - v' q6 Z4 g+ \/ ]* j &Name, // Array of names to get IDs for - I5 Z+ d# @. t- X2 c: e. Z 1, // # of names in the array; C0 Z/ {4 W; j: o9 L$ z
LOCALE_SYSTEM_DEFAULT, // System locale 0 @8 ^% o4 @# j5 Q# R6 ^ &pokeID); // Array of IDs to fill on output; \5 h5 u& q" ?/ t
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if (hr) 8 L6 Q0 U" F+ V" S {2 L" W7 a& B' x4 @4 V( x
MessageBox ("Get Poke Unsuccessful"); ( J( O, ~% F4 p6 X6 k% x return;( c5 L2 I" f& K6 a6 @5 u4 i7 r4 l4 ]# R
} " a% B8 d6 A9 V+ e, _: Z4 ^$ u. e( t& q0 S
/**************************传递数据给extend**************************************/& o3 T# a& Q0 c' n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ ?- u1 ]0 G+ r4 S + j4 T+ @$ m/ b& t% e" h9 v1 } m
valueStr = SysAllocString((WCHAR *) L"1232"); 0 q% J- f. ?5 L1 D# c VariantInit(&pokeVariant[0]); - k! O" n, u2 o1 Q
pokeVariant[0].vt = VT_BSTR;' S, @( e+ }( Q$ ]( j. P0 i8 G* d
pokeVariant[0].bstrVal = valueStr; : C/ F1 @4 \, p/ C6 D6 U2 o2 z& X8 ]- b/ r, D U0 |
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' J7 L5 }' |6 b
VariantInit(&pokeVariant[1]); 8 [# w( E' i" t+ V* D! ^ pokeVariant[1].vt = VT_BSTR;3 ?: n$ L% _1 h: |" I
pokeVariant[1].bstrVal = itemStr;8 S9 c; P' b- l$ V* J
) J3 q3 f5 p i3 F! _" Y* A topicStr = SysAllocString((WCHAR *) L"system"); # g- \0 |3 b( X2 \; e% U, q8 ? VariantInit(&pokeVariant[2]); 9 g6 N6 n2 `; b- K: y
pokeVariant[2].vt = VT_BSTR;7 y: f4 P. Z9 B; j$ R
pokeVariant[2].bstrVal = topicStr;+ q0 N! X, b, g B6 T
" w6 `+ D2 f4 T% X( C) j% I$ S2 c k// Set the DISPPARAMS structure that holds the variant.3 \* s, `& }& ~# g7 E
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dp.rgvarg = pokeVariant; $ k1 H v9 R2 I$ o. j dp.cArgs = 3;% R: B. B, R8 q' U3 n
dp.rgdispidNamedArgs = NULL;" z0 F/ Q+ w% K* _" G
dp.cNamedArgs = 0; . A2 \5 L: }! P3 l, ]2 s + S4 X% h/ V7 ?- p3 E6 b/ |// Call IDispatch::Invoke() , h1 [2 X/ f7 g0 e1 U: F& @+ x* T5 b% U
hr = m_pDisp->Invoke( {) [. E# k7 o/ K* y7 f
pokeID,4 Y/ r0 ~; S& p: ]) ]
IID_NULL, " F+ A# I3 e9 ^. | LOCALE_SYSTEM_DEFAULT,; B, Q S7 y, }7 t8 s* P) W( T' O
DISPATCH_METHOD,& g2 U8 m& w u) S) b
&dp,$ M4 ^' U8 k) \3 ^
NULL, + R' E/ m2 o. B$ _2 A9 ` &ei,+ q: V8 Q" k ]; H& z
&uiErr); : I0 w" `% k9 F8 v " V& Q" h( l) P; A; b1 a6 w# Z SysFreeString(topicStr); / ?/ ?, |3 F0 Q4 E SysFreeString(itemStr);/ G4 s+ T: [6 H1 p7 w
SysFreeString(valueStr);! B) A$ _6 w1 z
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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???9 i% }. F& D) x% y6 c. j
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????; w+ U: p, T( ]$ L/ d
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$ F0 A) T+ ~/ z8 Q' `2.这是request的程序 " s8 v* {2 V! \7 L& H// Request a value from Extend 3 N* ^" Q5 U1 h" u& C5 T( D/ u//1 y7 q0 @. ~; O- \, p) }
// Initialize the variant that will hold the BSTR. Set the variant's% I( U8 K% e1 H) `* e; Q$ L
// type flag to indicate the fact that this variant holds a BSTR. Place the / v9 l c, z9 g. \' _# L// BSTR into the variant structure. ( ~+ X5 o5 \3 F# q2 i G( B s 7 |' }2 X' O" @9 n4 } requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; r9 m1 o3 }2 A! Y$ x+ }
/ Y |& K+ F5 x3 M% \6 X7 a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ ^/ L0 O: P3 t. S- i ^7 E& B
VariantInit(&requestVariant[0]); ; N% H% B' t% d2 d+ Y9 _% C
requestVariant[0].vt = VT_BSTR; # y" F1 u. { I requestVariant[0].bstrVal = itemStr; q; ]$ |( |( Z0 H5 ^
! Q$ l; U, C8 |: L. e topicStr = SysAllocString((WCHAR *) L"system"); 4 G T# h! z6 H' _1 [ VariantInit(&requestVariant[1]); % `2 {0 K, F0 V& l& @" y" ~ requestVariant[1].vt = VT_BSTR;( Z/ H$ |, }# V2 O+ }1 t& f' t
requestVariant[1].bstrVal = topicStr;/ c) h: C" d* V' X9 N
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// Set the DISPPARAMS structure that holds the variant.4 q6 ]. @! G: B2 K v
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dp2.rgvarg = requestVariant;: ]6 G6 ]2 Q# D% z6 x
dp2.cArgs = 2;# Q; G7 W+ }( q) X0 Z
dp2.rgdispidNamedArgs = NULL;8 c u+ E8 X5 j+ |: r
dp2.cNamedArgs = 0;) r) Y/ p9 S) [% Z
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var.vt = VT_EMPTY; ( b% W+ X% g [( _: e! Z8 N5 W: O* |4 O- T
// Call IDispatch::Invoke() " `0 t6 i8 x! o( [' j, V6 e) j7 U6 R/ {& J: V
hr = m_pDisp->Invoke(1 Y, q& \% Y9 D
requestID, 7 U/ I" f, A8 g1 n+ D. ] IID_NULL, 9 o$ x% A0 S6 ]6 s LOCALE_SYSTEM_DEFAULT, " @" i8 S+ C/ [ t/ ]8 j$ b DISPATCH_METHOD,3 ]" u, }; k( q- o$ ~1 ]% k: n3 d# a
&dp2, / o+ M' y) N9 e/ I$ \6 q &var,& I1 @4 g! u) W8 A! n( p, V
&ei,- M7 D. Y' M9 ^/ ?5 @; t; F. S
&uiErr); % B6 d0 l. ?& S) m 2 q5 T9 m( ]; z SysFreeString(topicStr);3 W: N1 o0 u# j
SysFreeString(itemStr);$ a: D" [7 U* \( c
请问该程序是获得extend里面的哪个值?0 c1 M, z; \" P! S
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????