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: ) i9 [7 r7 c: A: i. {Name = (WCHAR *) L"Poke";8 C' p3 m2 ^. [) M. j, l! `. L
6 d, ^! q) B# q( z hr = m_pDisp->GetIDsOfNames (* `" m( J8 P' G' g& P0 O- l
IID_NULL, // reserved : D( b t% w3 M$ ~8 ` p &Name, // Array of names to get IDs for0 p5 j5 I+ y& W# Z8 Q
1, // # of names in the array6 a5 d _" z, Y$ ~
LOCALE_SYSTEM_DEFAULT, // System locale: D q; @: Y8 |0 k# X
&pokeID); // Array of IDs to fill on output, s1 K w& H% B/ }8 G0 J6 H
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if (hr)$ G& \' Y' s, P: a" B; o; |
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MessageBox ("Get Poke Unsuccessful"); 2 `6 \5 Y: H5 z( ]+ F. a* B7 [" ?1 Z return;' w0 o% e, ~$ B1 s0 R' F* K3 R5 q7 S
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/**************************传递数据给extend**************************************/0 ?" l% ^6 ^$ s: v, {8 s9 w' J
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 p1 g3 g1 b/ M/ i0 v
$ \. V' M4 v8 u% N# @! r, N valueStr = SysAllocString((WCHAR *) L"1232");& w5 Q% E% N, Q
VariantInit(&pokeVariant[0]); 9 H0 m5 \* b( [) R
pokeVariant[0].vt = VT_BSTR; + x" C$ c6 o# u) ] E& x, V pokeVariant[0].bstrVal = valueStr; * Y( T2 ^8 _% [1 w: P* x) X+ V, k* p4 a7 N6 W Z$ F! G4 J+ f+ y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 ?# w) v5 o2 Y VariantInit(&pokeVariant[1]); & Z! G3 J |4 [
pokeVariant[1].vt = VT_BSTR; - B0 f7 q( F" Q* _. N8 ~+ n pokeVariant[1].bstrVal = itemStr; * i1 f! D& j6 o. y4 [+ B$ n! {0 E! r1 E5 g$ G& f' f& m
topicStr = SysAllocString((WCHAR *) L"system");7 f& o& |4 q- s" ^
VariantInit(&pokeVariant[2]); 8 o% u3 w, K% T: P+ p7 x
pokeVariant[2].vt = VT_BSTR;3 G$ g5 G9 \: {% P2 D7 k) N
pokeVariant[2].bstrVal = topicStr; , ? `6 u' w4 ]: Y. j 8 [: E+ U$ [3 @& M0 D4 I9 e! u, ]// Set the DISPPARAMS structure that holds the variant.: U3 e: T* f; B. D. i q# O
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dp.rgvarg = pokeVariant; - x% v! L7 P8 N/ t+ i dp.cArgs = 3; $ u9 n& w2 M( _ O0 y dp.rgdispidNamedArgs = NULL; $ l, O! x ]8 d& ^0 J( [7 n3 `/ v dp.cNamedArgs = 0;" n7 C3 I' @/ [4 f# y! j
! e9 I# ?0 m% A, u// Call IDispatch::Invoke() 7 L2 N9 B( A, ?& T+ Y( Z! A: P+ R+ p$ T) Q* i* w, [2 R# Y* m- B; K
hr = m_pDisp->Invoke(3 d& v ~7 e/ H8 G, g. |! d- g$ i
pokeID, 9 O2 _( a$ ^ z- ~" w7 u' v IID_NULL, + y+ P& _8 i' Y' n4 o LOCALE_SYSTEM_DEFAULT,' W1 u# L+ t N
DISPATCH_METHOD, ' D( f. ?( N+ j5 i" z &dp, 8 K) G A& P% `) x' e0 f NULL,: f% U4 H$ s. P/ f2 {
&ei, 9 N, L! M, t! J3 N& [; p &uiErr); + w, ]& N* B# I1 v3 M . z2 m& M. M9 Q% ?+ K SysFreeString(topicStr); 6 P1 D& s/ s1 h! u SysFreeString(itemStr);" ?5 E+ V. N/ A ?) y
SysFreeString(valueStr); 0 w# b* g; i+ g4 d8 b' T8 i" i, V' H5 q# D- i
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???+ a& V8 _* z7 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????+ ^6 K( W9 D6 T, [+ J m/ x
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& {8 E2 ? P8 m5 Z( j l2 \' K2.这是request的程序 8 |4 a* @! x3 @, _4 b+ a0 U3 _// Request a value from Extend, ^) l3 M8 K% x3 Q( P, x
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// Initialize the variant that will hold the BSTR. Set the variant's4 [$ }! h% ?4 L7 L: R. R
// type flag to indicate the fact that this variant holds a BSTR. Place the4 l5 | b- [3 q6 o3 A
// BSTR into the variant structure. 9 p9 w8 {. a- a5 [- e 6 X, S4 _0 T! {+ K requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. }/ O( \" y1 `
- X! I9 j: X+ [. p P4 ?: r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & Y& ]% }" ^* w* o ~ VariantInit(&requestVariant[0]); 5 ]9 \1 F$ O/ }8 D0 { B requestVariant[0].vt = VT_BSTR;; X4 d$ S- c' x
requestVariant[0].bstrVal = itemStr; & i Y9 C$ a0 g7 i& q6 D' o8 _5 U1 \, v+ R H; M
topicStr = SysAllocString((WCHAR *) L"system"); * z$ d4 f8 n7 u/ `" x, U VariantInit(&requestVariant[1]); ) t% p9 ^8 k1 y% x$ U/ r requestVariant[1].vt = VT_BSTR; - [! p6 p+ L, @( h7 d. R' Q2 x requestVariant[1].bstrVal = topicStr;* Y# f2 `" }3 Q; \3 l. w2 n( J
( n3 U* O, k6 c. X// Set the DISPPARAMS structure that holds the variant. G h( c+ T0 j