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 `! w L( Q. f: F F. v/ r
Name = (WCHAR *) L"Poke"; ) r& v0 b% i: D9 H; U # ]5 L: M5 f6 a/ ^ hr = m_pDisp->GetIDsOfNames (+ R1 r% K9 l, T. p0 v5 k- q
IID_NULL, // reserved 9 }- h$ \ r# K2 C* Q. y &Name, // Array of names to get IDs for3 m" Z8 v9 C; c( @5 X
1, // # of names in the array T4 O2 U6 O. r! Q LOCALE_SYSTEM_DEFAULT, // System locale y1 E8 E4 ?; n( U2 q9 B &pokeID); // Array of IDs to fill on output d" c& T* }! O/ }
- A v1 u; m4 p7 U" I1 d; u/ p if (hr)8 r6 o2 d8 r7 _. C3 U O: U7 t
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MessageBox ("Get Poke Unsuccessful"); " b5 Z' n: ` _: K% g7 F1 U$ k return; % E6 \/ B- }0 U# ~: j } 3 K, t- F0 v3 {" H8 F" j; I4 ` M- Z9 A1 S6 Z$ Z+ o* ^0 l4 A: m# \
/**************************传递数据给extend**************************************/. K: n% L6 J' h2 [3 y+ P% m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' Q k8 y% ^9 U j
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valueStr = SysAllocString((WCHAR *) L"1232"); ( h' V3 ?) S1 S, m! P VariantInit(&pokeVariant[0]); ( i& @9 D; m f# h
pokeVariant[0].vt = VT_BSTR;7 I. t( J& E+ c1 e
pokeVariant[0].bstrVal = valueStr;, R' m- W- r6 `9 i
( j5 G4 [7 q1 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 U3 K, w0 n e, ?2 @# P+ m6 i
VariantInit(&pokeVariant[1]); $ d0 W- K+ o8 L2 _ pokeVariant[1].vt = VT_BSTR; * ?1 B9 k7 W0 I pokeVariant[1].bstrVal = itemStr; ) P# J) B( h- a: x0 D# d6 M! p0 E4 Y7 b
topicStr = SysAllocString((WCHAR *) L"system"); g; P* L8 c/ |3 K7 V VariantInit(&pokeVariant[2]); 3 ~ }/ \1 W1 B' W; B+ B
pokeVariant[2].vt = VT_BSTR;, C( [6 w* o2 C) ~( B) T; x
pokeVariant[2].bstrVal = topicStr; 5 y+ O' g1 H6 r/ W" ` . s6 n" k/ Q8 o7 j// Set the DISPPARAMS structure that holds the variant.. |- n x! j& A+ z
* Q$ X) E$ d! N7 L; S/ q! { dp.rgvarg = pokeVariant;8 m+ `2 ~; }( x# W! ]5 C
dp.cArgs = 3;1 e; V9 d1 |' P' S$ q: d
dp.rgdispidNamedArgs = NULL;* x3 b, Q) c8 T- f" U+ R5 k
dp.cNamedArgs = 0;# O+ \ O! I* P
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// Call IDispatch::Invoke() * q1 W7 V* u* R+ h/ q ' i; W! K2 ~ {' T hr = m_pDisp->Invoke( 0 o2 O: L/ g8 a2 i5 G& C pokeID,! w& e& Y% i/ b2 Y* B, b% f
IID_NULL, ! T, O. r, a* b1 T0 _1 T8 p7 F LOCALE_SYSTEM_DEFAULT,* h/ j9 I0 {& s+ @: G& _+ a* n
DISPATCH_METHOD, 4 }! H0 n1 y; @6 \$ Q &dp,/ M6 |7 g5 Q& D/ e" ~2 H' O8 |
NULL,5 S- n# j2 U, S
&ei, & M h/ Y( J2 _, W# _* u6 G &uiErr); 9 B* E+ q% R" E6 [6 [5 ^9 I. x0 S
SysFreeString(topicStr); % U3 G; E6 T/ K6 ~! K w SysFreeString(itemStr);. Y9 m* R7 n$ H; O
SysFreeString(valueStr);4 P9 V2 g m0 k y
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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 }& G6 G3 S. Q' W F4 N2 E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????9 @7 Q# ?# k: n# a9 f/ g
) @% O$ n! Z n( q% P 6 q8 H _: g3 I4 O& e9 z7 s- ^2.这是request的程序 7 b0 w/ R) F( A3 t// Request a value from Extend6 Y5 t% i( b8 e7 y+ f1 g& j
//1 R% C: Y/ m8 }: `+ }% V/ w
// Initialize the variant that will hold the BSTR. Set the variant's5 w% g. |3 M! E+ f3 P
// type flag to indicate the fact that this variant holds a BSTR. Place the$ l6 X& V+ W" K3 S, q
// BSTR into the variant structure. 8 X& B2 t3 ~0 x : c* u3 b# s8 F$ z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ s8 v9 K a! A' K; s0 m
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 N+ @4 A4 N2 m% R2 ~' X- W
VariantInit(&requestVariant[0]); . k* V# s; B% k) H- |
requestVariant[0].vt = VT_BSTR;3 q/ S$ L1 {% x, T, W \' r5 W% n
requestVariant[0].bstrVal = itemStr;+ H2 {4 t& A A# ~2 `7 K$ M
" v1 g0 [# F U topicStr = SysAllocString((WCHAR *) L"system");; L# {5 w3 x3 o! Q. N
VariantInit(&requestVariant[1]); + d8 b$ T: }+ X: w# \- A* @- A
requestVariant[1].vt = VT_BSTR;2 Y1 G9 s$ k6 q% l, H
requestVariant[1].bstrVal = topicStr;& A- I7 W( [9 f g* \" {
! x3 z {4 J% x// Set the DISPPARAMS structure that holds the variant.# K, b+ M" h2 O8 c) r2 ~7 E8 L# Z
. H$ p5 N! _ w4 a5 G( D+ S* M dp2.rgvarg = requestVariant;$ q' \' n. D$ ^: D3 a5 `0 @$ Y6 ^
dp2.cArgs = 2; ( b7 T8 I! e" L3 r* r1 q3 O7 D6 C dp2.rgdispidNamedArgs = NULL;/ a# f6 P5 Z7 j+ y4 N; w
dp2.cNamedArgs = 0; 6 |+ V4 L1 n/ M , `! G* O t7 K, p4 u% _ var.vt = VT_EMPTY; % @0 H$ P, t6 \- K0 a% Q | # ?3 G, _* h9 U2 @// Call IDispatch::Invoke() . B+ R' N% L& R; t1 E6 c$ M( _. s$ A5 P( }0 `- q: H
hr = m_pDisp->Invoke( 0 c Q( o" i" q a& [ requestID,9 B) J5 y: {5 A
IID_NULL, 2 I9 N2 f f4 s3 h$ V LOCALE_SYSTEM_DEFAULT,: I, ^/ Y+ i% s7 a, X- J
DISPATCH_METHOD, 0 P! {- M/ D* b! t &dp2,$ U$ @8 n# E6 S1 C
&var,) S0 _, z+ ~4 V7 J* R5 _9 m/ N7 V
&ei, 2 T/ y, T& `* V0 C: r5 k+ V& ` &uiErr);/ n& \" Z2 E0 |! A: t
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SysFreeString(topicStr); 7 u" V+ D! d5 w2 n7 O SysFreeString(itemStr);$ ? Y/ L/ g6 w0 @) e
请问该程序是获得extend里面的哪个值?" g. n) |) X8 {* O
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????