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:5 q# W+ Z" y k+ `
Name = (WCHAR *) L"Poke";! z$ X0 T1 L' N; P
7 @! L3 |9 `$ x: | A hr = m_pDisp->GetIDsOfNames (; v* j2 J$ W% P0 m9 X" x! A; g+ N
IID_NULL, // reserved ) m+ P) s) `) l: G. q5 C &Name, // Array of names to get IDs for ' t8 f3 v% C/ \5 W3 y9 e' M 1, // # of names in the array" P* R ]0 f3 K9 n
LOCALE_SYSTEM_DEFAULT, // System locale + O. a1 \. \: W: M &pokeID); // Array of IDs to fill on output" Q6 h9 N8 s+ H
% }/ G, V3 t0 v if (hr) 6 [: [. c1 x: G! M {+ r( k* G1 q+ Q. F O9 J
MessageBox ("Get Poke Unsuccessful");/ f. f' k9 s! A0 ^! J' O
return; + e( Y; @! M8 {& H, w } 6 m- ~5 M, _) f c7 ~7 \3 G, { P7 B9 {- z/**************************传递数据给extend**************************************/" N2 B$ e. f. @5 S1 ]
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: y. w' m$ o. m# M& A
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valueStr = SysAllocString((WCHAR *) L"1232");1 g6 C, u: z9 m* ~9 g
VariantInit(&pokeVariant[0]); 6 }( \) Z. {+ m+ C! O# O
pokeVariant[0].vt = VT_BSTR; $ ^* U% h! a; E- w pokeVariant[0].bstrVal = valueStr; - b% a* @3 _; K8 N2 C( {, v) D; v9 {) {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ w9 e3 d$ h2 k' H Z) |1 I, U8 n
VariantInit(&pokeVariant[1]); * j; h, [* `% z2 F# l
pokeVariant[1].vt = VT_BSTR;/ \. K. y/ m V8 _: z
pokeVariant[1].bstrVal = itemStr;) ^8 y$ c8 i7 I Q7 Z0 D$ V+ n1 t: j
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topicStr = SysAllocString((WCHAR *) L"system");& o4 R; g) \8 A+ O3 @- F
VariantInit(&pokeVariant[2]); 0 O0 j+ X: L1 ~) v- |$ Q
pokeVariant[2].vt = VT_BSTR;9 u3 E) q1 k& x, c0 x4 E! N! j
pokeVariant[2].bstrVal = topicStr;/ h6 i4 \' m' K" |5 e+ f
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// Set the DISPPARAMS structure that holds the variant. 1 u5 u" O5 a- X: ~. I3 F/ e5 r2 p$ _ b8 k
dp.rgvarg = pokeVariant; # i) T0 M- L) {9 Q6 c& Y' j dp.cArgs = 3; 4 K' {% q- u* j' v1 s2 ^7 f+ N dp.rgdispidNamedArgs = NULL; 2 Q& a0 T! G: o9 _# G) X6 c dp.cNamedArgs = 0;' S; S! j. Y! S4 }, _* h+ g
7 W$ T) |0 T6 h+ t7 p// Call IDispatch::Invoke(), v: R6 C6 q( [9 B# w& a
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hr = m_pDisp->Invoke(1 G" T" z! j" P( B& i5 T
pokeID, 4 [. Z S% g. o IID_NULL,# v( p: I5 {, n
LOCALE_SYSTEM_DEFAULT, ) {& `7 h P1 l; h DISPATCH_METHOD,% V* ]& J) G$ Z. E+ _& ^5 D7 L
&dp, ) E" C# J' W g5 l( ~" p NULL, ) W& U1 T) X# ?" _' V0 O &ei, ( M- g7 \/ w @% Q &uiErr);/ `+ ^0 P7 G9 O% a, V, X
" M# k7 }; \8 g SysFreeString(topicStr); 4 B6 k ]" {' k- {7 {* X" H r SysFreeString(itemStr); L0 D8 G6 `3 L( k SysFreeString(valueStr); Z2 C" G7 A$ k" J) T
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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??? J% T/ \5 P/ b" T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 n; p& ~, M; o r8 X# {8 R4 s( Q1 p& G- S# ~* [1 u
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2.这是request的程序% |$ ?9 h; s2 r: @+ |
// Request a value from Extend , h Y* ]( P. P- k5 `9 L6 O// 0 J0 @$ y( v4 {5 |! i// Initialize the variant that will hold the BSTR. Set the variant's$ p! v0 [; R5 Q: X2 d# T Z7 H
// type flag to indicate the fact that this variant holds a BSTR. Place the - G: y1 Y& {( b// BSTR into the variant structure.; h. x; @/ _) w5 L& ~3 E
0 M" i' d: q& U2 B requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . D, a$ H" h$ s+ @5 x; | . W3 h; k( L% S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) c( X6 x* }; t+ A VariantInit(&requestVariant[0]); / N0 T6 b9 N3 F# Y3 A' p+ B requestVariant[0].vt = VT_BSTR; " F/ n8 G& M j3 ?" C! {9 ]$ L requestVariant[0].bstrVal = itemStr; ! a0 |! h6 v7 n( g: m( r! Z2 B 3 d# ]) W6 ^( D. }" B topicStr = SysAllocString((WCHAR *) L"system"); & \6 Z: [. T* b- T) q& y4 b9 [ VariantInit(&requestVariant[1]); 5 s0 k$ J* t/ i1 |: s
requestVariant[1].vt = VT_BSTR;; c: L4 R# { P D4 w" a7 a7 g
requestVariant[1].bstrVal = topicStr;9 w7 ?4 i$ l2 d0 L+ r! E+ l
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// Set the DISPPARAMS structure that holds the variant.- A5 B+ i {. }# v1 }
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dp2.rgvarg = requestVariant;( v) p! ]- N; M. D6 ^# q
dp2.cArgs = 2;" M& }2 N9 S0 v/ n- M
dp2.rgdispidNamedArgs = NULL;+ S/ s. y- F, a/ P n
dp2.cNamedArgs = 0;. C9 B0 U7 q( c% M( t& ?- W W
# O( v7 O, j& w V( r var.vt = VT_EMPTY;" ~2 l& f/ i, t- ?# F {9 j# k