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: : Z1 c& J# h$ t _6 j2 CName = (WCHAR *) L"Poke"; 8 Z9 ^3 R+ u& t1 P1 K- o 7 ^. k+ @# ?# ~6 ^8 R+ ~4 ^! \3 Q; L hr = m_pDisp->GetIDsOfNames (; T/ e1 ?$ |' h- v, \( c
IID_NULL, // reserved: D; u R% S' L! g1 b
&Name, // Array of names to get IDs for+ e* V. S" J9 \
1, // # of names in the array, C' Y/ T% ?# c2 V
LOCALE_SYSTEM_DEFAULT, // System locale ) f6 S, x; m1 n3 i9 o: Z &pokeID); // Array of IDs to fill on output - }" O+ s* w6 e p, o+ w) g: v/ R ; L3 d: B# H3 i% I0 u; t if (hr) $ l1 `, e3 S) w Z% F7 c9 @ a& n {; D. Z) j7 i' e3 _
MessageBox ("Get Poke Unsuccessful"); 2 l9 m, q1 |8 i& \- {0 |7 g return;: Z5 R. @& ?! @+ d) C) u. P% b
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/**************************传递数据给extend**************************************/" o- t b1 g9 ?; _
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : D0 ]- ^9 Q8 g% W. c $ i# S: o9 Y- i- r. N+ b
valueStr = SysAllocString((WCHAR *) L"1232");: I; r" \$ `! V0 B: B
VariantInit(&pokeVariant[0]); ' A! N3 _4 q" V7 _/ ~
pokeVariant[0].vt = VT_BSTR;0 y) M0 e% ], P. F. C. E0 _4 o9 c
pokeVariant[0].bstrVal = valueStr;' q" c+ U2 r+ t6 d; S0 S+ [: E
7 Y# s$ j, u1 K9 y# I, ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: m2 L. n: G" M/ l; d) G7 A/ T8 B
VariantInit(&pokeVariant[1]); ) W2 l7 M( h8 _6 K
pokeVariant[1].vt = VT_BSTR; H L/ U8 d* i/ k8 O @. q
pokeVariant[1].bstrVal = itemStr;* o) t* j! q( Y/ P r8 u
/ E" q, I; \# G/ F topicStr = SysAllocString((WCHAR *) L"system");- e9 U! X" r9 o# W# W \& k
VariantInit(&pokeVariant[2]); 9 {7 k7 z6 t+ `- _4 T$ X pokeVariant[2].vt = VT_BSTR; 1 M* o0 _& v$ b, R$ |5 k; ~' u' ]- ?8 a; G pokeVariant[2].bstrVal = topicStr; : U+ l- N* b$ q7 e 3 e" c w4 E% V// Set the DISPPARAMS structure that holds the variant.5 b. j. i( X7 [, `& i
2 f n" M9 z: X" c3 a7 U dp.rgvarg = pokeVariant; 6 p, N2 i4 Q0 q* S [ dp.cArgs = 3;$ h1 l7 K) q) f; _
dp.rgdispidNamedArgs = NULL;9 v* a5 R4 g! T5 w& U
dp.cNamedArgs = 0;8 H) A$ G$ W6 l# u3 l
: \$ i: {- A8 G1 |+ `, ~// Call IDispatch::Invoke() / P& Z( X) a n9 t+ {0 G * j# i5 z8 X. h' d2 u9 U hr = m_pDisp->Invoke( + T D0 a( X# v" J" { pokeID,2 ^9 ^1 k2 c! c' W" }
IID_NULL,- K1 E( w" h8 q6 i% {: ]* n9 D0 q
LOCALE_SYSTEM_DEFAULT, 3 [* \7 m1 v+ h DISPATCH_METHOD, ; |! H( ^' z/ |+ _ I* l' }6 t &dp, + o# r! h. L3 f; ]2 } NULL, % X8 D5 R6 L- n& { &ei,. C. h# n) y2 |
&uiErr); , l3 F0 M3 S; Y$ r& A7 w1 u 9 a% M. T3 ]8 W SysFreeString(topicStr); . w) @# {4 H- I6 i! p+ F+ n) J SysFreeString(itemStr);3 X+ r7 o' B# [8 H
SysFreeString(valueStr);0 P K. \4 F* ~7 ?
8 ^% F7 v; F. `* O- q: C! ~% D1 {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???$ U) d/ w. H' S8 c' ]+ ^+ c
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???? 2 m; ?# M5 c6 _0 h$ h3 |- H% A- c5 e, y 0 j7 Y4 c1 z) l, _( [3 [, F. j . P+ j* X3 ~9 ^$ ~ ]9 y- J9 u7 m2 n2.这是request的程序 . t6 ~4 J% W( d# l& d* ?" y4 D& a0 v// Request a value from Extend . \$ V. H% m v" w* ]2 m1 s& P// % F2 c) p7 [1 D- b' B$ V: ^% H; r// Initialize the variant that will hold the BSTR. Set the variant's ' N7 ~# T# q0 X& ]7 g) M; r& I// type flag to indicate the fact that this variant holds a BSTR. Place the 6 }" y, `5 j: J5 H- ~0 P// BSTR into the variant structure.6 E" J- @' b3 t9 K; i
( J6 |3 m8 J0 d% H7 S s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" X! f+ p) P2 l& L2 K8 \9 j; l
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # F7 |! J) y2 B; W; Z" U VariantInit(&requestVariant[0]); - S( }3 D; c) t/ L k6 r i5 L requestVariant[0].vt = VT_BSTR; T* h0 x6 \ Z( z: }/ l requestVariant[0].bstrVal = itemStr;. `+ K$ y9 T1 z4 r1 y6 I( \+ q
/ l; [1 U; k e. z& s. O topicStr = SysAllocString((WCHAR *) L"system");) A u# M; k& S: Q& }
VariantInit(&requestVariant[1]); 9 r! J' A2 u+ }3 V2 K" m# p requestVariant[1].vt = VT_BSTR;- e- R; G, \+ }& v
requestVariant[1].bstrVal = topicStr; 4 ]! u; y: G! _: k' h+ C % P! t9 s) m& D9 {1 T' o// Set the DISPPARAMS structure that holds the variant.' o4 J. o- ] _7 O% v
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dp2.rgvarg = requestVariant; , i5 k$ n* {) u dp2.cArgs = 2;5 J+ [8 _1 g/ d% \ W' X2 j1 c* x
dp2.rgdispidNamedArgs = NULL;5 F5 \7 f0 D$ D E
dp2.cNamedArgs = 0;: c. U% x# e$ U- B0 D0 U2 D
; d2 `! ?5 m. T* b9 T3 V2 l var.vt = VT_EMPTY; 4 G( ~; e3 T9 _, U- D8 ` H ( X2 D |" y/ l9 P6 f3 w$ ]5 R8 _// Call IDispatch::Invoke() , v9 G, J8 [$ q* a. t, u# a' b/ G% |3 N- S; p) i _
hr = m_pDisp->Invoke( : [+ H4 ~- b" I/ Z9 W' t requestID, ' _! T" b8 K" C4 \ IID_NULL, , b, K+ T$ p; u4 U9 @ LOCALE_SYSTEM_DEFAULT, . R% K4 e$ [0 z# |9 }8 G DISPATCH_METHOD,* s" i, o @; w ~9 {4 ~
&dp2,! F: r$ D t0 \% J j/ I
&var,' F9 Y o) }9 _9 z/ m2 K/ z
&ei,; S& x" ]# r! ]0 c' |8 B5 l
&uiErr); " w7 G1 y! M- x$ n* W4 d( C+ h ' {; R! E! ?& n- m7 F SysFreeString(topicStr);# _; q( D3 E8 h" K3 t: Z
SysFreeString(itemStr); $ d. D. z/ l' |# D请问该程序是获得extend里面的哪个值? I) c/ d) _; A; ~) P* u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????