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:/ M7 T" }" z2 ?/ i- P/ V. ?
Name = (WCHAR *) L"Poke";& t' k' r: |# f1 F4 n
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hr = m_pDisp->GetIDsOfNames (2 O/ e9 s/ s4 |8 c7 y
IID_NULL, // reserved : [% b# f6 p" C1 M &Name, // Array of names to get IDs for3 ?" K2 [8 m6 c' _! ^
1, // # of names in the array A* [$ T2 A: k A" k; [' O$ | LOCALE_SYSTEM_DEFAULT, // System locale2 W8 l9 ^( B2 h7 [0 }$ G
&pokeID); // Array of IDs to fill on output ; X; x) y, ]0 u% x0 R 8 |- h6 |0 w" v; _: I0 t if (hr) - t+ O/ [5 Y$ a& ^; E/ u {0 @& z9 |- G' [; u( |! C8 B" F/ u
MessageBox ("Get Poke Unsuccessful"); # B2 B$ g# t" m3 l7 u- ^) ^ return;7 n" G" M1 M% {2 A8 D
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/**************************传递数据给extend**************************************/* _: |7 r5 c( f% @# i
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 K. Z+ s8 N) W( ^2 } - ~1 H8 F% r, M: n& R& g valueStr = SysAllocString((WCHAR *) L"1232");% u5 n- w. R; c1 k7 r- B
VariantInit(&pokeVariant[0]); , h- d/ K$ v) z8 j, I) p! t pokeVariant[0].vt = VT_BSTR;$ P& i3 }" }* C8 G5 |1 M5 p3 k/ c: g
pokeVariant[0].bstrVal = valueStr; 3 i! S3 ? @* [6 i+ k u; ]; z$ y& P& ~1 A: _1 f5 _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ^: ]; c+ O/ X' \3 g. W7 a
VariantInit(&pokeVariant[1]); 6 h8 m! O9 o) \
pokeVariant[1].vt = VT_BSTR;' i F& d e8 q( C* {2 k
pokeVariant[1].bstrVal = itemStr;3 J; n2 @8 T6 z& G2 ]
9 L% }/ m% O* s; j4 P8 M0 y: } topicStr = SysAllocString((WCHAR *) L"system"); $ ^6 Y/ s. H' \$ G* Z VariantInit(&pokeVariant[2]); $ T6 \" w) Q" i pokeVariant[2].vt = VT_BSTR; * s0 L0 ^$ b# i2 z pokeVariant[2].bstrVal = topicStr; ) j% L8 f0 N& I' J0 p) l# x& ^! @$ l6 j! k; {& S7 b4 _
// Set the DISPPARAMS structure that holds the variant. 1 d- f" B$ l1 \- A9 j 7 n, X4 i/ `, l, t, t dp.rgvarg = pokeVariant;6 c r) k+ n k5 g$ b8 C
dp.cArgs = 3;: ?( z( a. a# Q1 Y! ^! |
dp.rgdispidNamedArgs = NULL;6 t% D: j8 `# O" o, ?- W
dp.cNamedArgs = 0; K) q( k! g' a. W . E; [: A) m* y. U5 w1 a// Call IDispatch::Invoke() U+ o2 k+ g- F. w N$ v ; @9 C' P* x. i( m* ` hr = m_pDisp->Invoke(& X; C4 a. T- p" q9 W/ S0 u) u. T7 z" a
pokeID, o4 x% N1 o! c9 u% h IID_NULL, 2 j4 ^$ }3 k/ x- q7 p, t! D! A LOCALE_SYSTEM_DEFAULT, - r" p0 j n; T; | DISPATCH_METHOD,& k5 {; K% {4 |; S4 G
&dp, " a: o* D7 O, A% p1 _, z# B' E NULL, : S) W/ o4 x4 u &ei, 9 z: f+ s' g- X+ x: r# M &uiErr); + w/ c( C, ~6 g+ \8 T( O8 K' B! D& v* {2 y( i" Y7 f
SysFreeString(topicStr);4 j! Y" H) N0 F' u* U- p
SysFreeString(itemStr); 7 w. q: B! C. }9 k/ H, n SysFreeString(valueStr);) y# A: e9 ~0 U0 j0 {
# I" i7 O4 _. ^# E% j+ i- J3 V p. Y% s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??? 6 Z Y' `. [0 x9 T% M! o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????# s- k5 A3 _- [* e
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: ]0 D! c" C# H& @" B' i+ O2.这是request的程序 - y) l" }1 M* U% T* v( S5 N. ~// Request a value from Extend 8 Y, l7 l& g! \* E- G//: G# W/ [6 T; L; G9 M( A! U
// Initialize the variant that will hold the BSTR. Set the variant's; o! k8 E. \6 A; m _
// type flag to indicate the fact that this variant holds a BSTR. Place the* d [/ Z0 Q* Y4 q6 ], U( y
// BSTR into the variant structure.! ]! |6 p9 L+ c% ?; g2 B
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 o8 E' Z! Q$ H # J# m" q0 r5 ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % i4 ^6 t0 [% ^& F VariantInit(&requestVariant[0]); * R4 x3 V8 u2 h' W# ]' Y8 Y" p
requestVariant[0].vt = VT_BSTR; " U5 G+ s$ |6 K8 Z- E, G requestVariant[0].bstrVal = itemStr;8 S* l p e7 q' T: m+ n1 d |
2 G- `! e8 L0 h) ~0 i" q3 p& ^7 ?8 P topicStr = SysAllocString((WCHAR *) L"system"); , ^! q$ s5 |7 D7 C) ?/ p. b7 @ VariantInit(&requestVariant[1]); 5 R& } b6 {7 L! Y/ I
requestVariant[1].vt = VT_BSTR; / J0 o" Y& O3 ^ F3 {" q requestVariant[1].bstrVal = topicStr;. p% V& b Y6 V9 R; p" ^6 a0 h
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// Set the DISPPARAMS structure that holds the variant. 9 T1 \3 |5 Q$ M; M O! n0 c) f8 d+ B dp2.rgvarg = requestVariant;$ B; y4 h* p+ K: o& H) E9 z
dp2.cArgs = 2;" @! `( _, f. Q9 V: B- t
dp2.rgdispidNamedArgs = NULL;- o2 u1 L4 Y# ?* h* ~+ W
dp2.cNamedArgs = 0;1 J# V* W. l3 {
( ?( m; E+ k9 v' K( I9 Z- e( \ var.vt = VT_EMPTY; + c+ h! c/ t" \1 m8 ~0 V) r: x* V1 E) M0 e- |* z1 o
// Call IDispatch::Invoke()" ?7 t4 x) l- F3 n1 }
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hr = m_pDisp->Invoke(5 l$ a' Q7 S1 K$ o
requestID,/ ?' @+ u. f* s* x
IID_NULL, . o" D+ x# ^7 g) n2 _% K LOCALE_SYSTEM_DEFAULT, + E! T: {9 W7 J9 D! D DISPATCH_METHOD, ; h. W' \& N1 j) ~ &dp2,2 Z% F ]! f1 `( v1 a/ q
&var, l* M1 P' \, G
&ei, 8 ~. d$ ]4 R" a/ H1 c: j &uiErr);* R a' v6 s I0 l( I5 G2 o