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:/ P' Z0 r! A$ s& p% H2 ^. y
Name = (WCHAR *) L"Poke";2 u \9 `' z8 B
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hr = m_pDisp->GetIDsOfNames ( ' t' a2 j& V5 a2 l IID_NULL, // reserved 7 C8 `! u* {( g &Name, // Array of names to get IDs for7 F0 h* e! t/ X& q1 c
1, // # of names in the array- C1 B# ~$ ?" [" |
LOCALE_SYSTEM_DEFAULT, // System locale ; c) ~# n. {0 E. u9 k/ B8 } &pokeID); // Array of IDs to fill on output" w' F! B& `* q
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if (hr); R' ?+ v6 F2 I$ S$ l' w
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MessageBox ("Get Poke Unsuccessful"); 7 i; A8 L$ ^3 ~ return; 6 y! u$ O+ ?6 z! d- ]' f5 Y+ n! c } " s/ j! d% ~& T+ X! Q0 _# a& M 0 x# N7 M0 L1 B; r9 r/ }. ^/**************************传递数据给extend**************************************/* k1 t( p9 A5 \8 I$ Z. R5 Y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + U/ b) y- b* @$ p" q1 A2 D+ E . V0 d! x6 m, z/ n; J
valueStr = SysAllocString((WCHAR *) L"1232"); / M: q5 P% x$ C" Q6 |. y c VariantInit(&pokeVariant[0]); ; H! j. j, @3 @; q0 ]
pokeVariant[0].vt = VT_BSTR;: y) R1 p$ _4 _) K2 `7 b
pokeVariant[0].bstrVal = valueStr; # g6 `9 B4 P+ M$ S. m) A% D8 k/ {' {: z) f- x! h% F' m1 o
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); c( G2 |1 b& R+ H
VariantInit(&pokeVariant[1]); % Z ?9 I. i4 J; o p7 Q
pokeVariant[1].vt = VT_BSTR;+ \ b5 [; M; s) j
pokeVariant[1].bstrVal = itemStr; 2 g# u" p P: x' b4 _+ g M& K1 m+ h' E8 g7 t6 M. N
topicStr = SysAllocString((WCHAR *) L"system"); V* z* P, T2 q* _
VariantInit(&pokeVariant[2]); + c% K) f' m( u$ X' A0 }6 d pokeVariant[2].vt = VT_BSTR;# h# I+ V& c$ D! }, d$ W# z% \! D
pokeVariant[2].bstrVal = topicStr;. P/ g* u& Y/ \8 y
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// Set the DISPPARAMS structure that holds the variant. $ ~7 q9 h# p$ G& h& G9 j Z. S. \/ n+ J% a$ K
dp.rgvarg = pokeVariant;* N8 K5 _: `$ C8 K
dp.cArgs = 3; 5 y; h+ k: ] F1 `, ~ dp.rgdispidNamedArgs = NULL; - }6 [5 r4 P( W U( o1 ] dp.cNamedArgs = 0; 0 u8 D* C( l9 |" r9 N+ }6 w) A" ~ # F$ k/ u$ b! ]3 L// Call IDispatch::Invoke(); K) m$ n- S3 l" Q+ o4 |8 @
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hr = m_pDisp->Invoke( ) q0 w3 n7 n5 G% k pokeID,4 H z9 d. E3 B' C7 @) G% q
IID_NULL,; i7 o& [' E- z, u* C9 l _, c$ j
LOCALE_SYSTEM_DEFAULT,: q0 Y3 z$ H) ^
DISPATCH_METHOD,; a9 ~! o( w% f" a! }! t
&dp, h; R: {- Y, V+ K1 C: o8 c {1 C NULL,; X: U) `# O9 p* \5 e
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&uiErr);6 B! F6 M; m! H& G# b+ p
+ q: V1 @8 `4 h0 m9 q: h/ \ SysFreeString(topicStr); & c7 ?) j! G y/ ], I SysFreeString(itemStr);6 {" N* B& e" y6 o2 h. D
SysFreeString(valueStr);0 C: s- m" ^' K: \4 ^
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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???" y1 i: N. N- \7 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???? , m X' y1 ?4 O2 D9 D7 @* z: n ]6 k% ]1 d" y$ l: q8 |0 K
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2.这是request的程序: d& p% p! X2 i$ O& L+ P
// Request a value from Extend - u, S7 |/ ?1 S// 8 R+ m2 J4 h! I% N! x// Initialize the variant that will hold the BSTR. Set the variant's3 e; j y, l; M x
// type flag to indicate the fact that this variant holds a BSTR. Place the5 t a' }" J; n3 C
// BSTR into the variant structure. ( Y; a8 l3 D5 Z, K) q6 T : A* E( z3 k$ P* Z) _0 l, x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ R" j3 {4 A, E/ V0 U
. n) K9 E$ s0 y% b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- T; P! Z, J9 ?0 }3 O
VariantInit(&requestVariant[0]); $ Y; I# K% F7 Z' u' N+ m! ?& @ requestVariant[0].vt = VT_BSTR; y% F; b/ Z2 a1 E- @ requestVariant[0].bstrVal = itemStr;1 A' K& t& g; q8 Z0 |+ S
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topicStr = SysAllocString((WCHAR *) L"system"); 9 q; `- \) G, \; N2 U$ z, H VariantInit(&requestVariant[1]); ' s: |5 ]3 [" E! C; A" { requestVariant[1].vt = VT_BSTR; 7 ]. \+ K; Z) O6 S1 Y0 [/ ?1 X requestVariant[1].bstrVal = topicStr;: A9 l4 F; h* j( w8 ?" P3 z5 }! U
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// Set the DISPPARAMS structure that holds the variant.0 z0 B G! i3 i {
7 `' K( l* v6 t4 j# e7 {) L dp2.rgvarg = requestVariant; 4 U1 e! W; ~' @% p7 o* Y. K# w1 ^ dp2.cArgs = 2; ( c$ t, n& u, X: ~4 p; O2 Y0 s- l. l dp2.rgdispidNamedArgs = NULL; j* S1 o% a6 v6 L, f dp2.cNamedArgs = 0; C w9 _8 u) }! D( Y2 U
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var.vt = VT_EMPTY;7 n0 _* X9 y5 L: ~! {& }
8 i6 }( ~+ Q4 F// Call IDispatch::Invoke() , u+ L. Z3 s' P ' D; z: G J8 n8 J/ v, J3 L$ ] hr = m_pDisp->Invoke( ( [' A8 i- u2 c4 ~: N5 S/ L/ o$ f, y requestID, + z; z0 I; f' {0 S; Z- o IID_NULL, : M; b5 e, r) }2 p0 r LOCALE_SYSTEM_DEFAULT, - \1 K, }; B- \9 ]/ |/ s DISPATCH_METHOD, ; w4 `$ h& [$ l% Z3 r0 \( N &dp2, $ n$ o' f* V& C* C& c &var,. D" Z! V7 j* @
&ei, , d0 w* `8 P- B2 G4 ^" m( ]. t8 q &uiErr); # J; H; [, _% D( F* ~' h& z9 i) c/ b. E
SysFreeString(topicStr); + e) B2 z. [/ e- c h SysFreeString(itemStr);2 G2 f6 `) \5 |" h, S6 `
请问该程序是获得extend里面的哪个值? 1 K0 x! F" [/ u, C b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????