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: 8 U# u. o( A) v4 s( x3 b: GName = (WCHAR *) L"Poke";2 W9 f( ^5 P5 |8 r
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hr = m_pDisp->GetIDsOfNames ( ) S( q3 [. B- J5 M' C IID_NULL, // reserved4 ~9 w9 v+ ^$ Q# z
&Name, // Array of names to get IDs for( w1 |3 G" I: |. {2 j& Z" B
1, // # of names in the array, C& o- }/ j, y1 t1 g+ W
LOCALE_SYSTEM_DEFAULT, // System locale2 M" m% W4 `: i
&pokeID); // Array of IDs to fill on output 8 D' k( ^) U9 W: c) R E % ~" J4 G2 [9 v, ]* Z8 M
if (hr)2 w- c) \% ]1 h* e! b
{ + J8 S( Z# C6 h. x X1 O3 a MessageBox ("Get Poke Unsuccessful"); ! L8 ]8 e- [( O, o return;3 y1 b. m) X; }, t% e7 p5 ^8 y4 R: P
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6 D7 H$ n6 E/ h6 S2 d/**************************传递数据给extend**************************************/ " _) c! j& i! O u+ j3 a" z9 w pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 Z+ `2 k5 J7 W, p9 J& j$ K9 p X4 E 0 D/ v0 X6 Q: ~/ _, p# d, Z valueStr = SysAllocString((WCHAR *) L"1232"); d! M* z# n- _7 {4 a VariantInit(&pokeVariant[0]); `. `" A" Z, N% s, X
pokeVariant[0].vt = VT_BSTR;3 N& g6 k% R7 n, X$ _
pokeVariant[0].bstrVal = valueStr; 4 N- U& K# X" g9 H9 c3 I% M% Y t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ^& x* z3 k% g; ?: C0 ^ VariantInit(&pokeVariant[1]); " F% ] c6 _8 Z) Q/ @ pokeVariant[1].vt = VT_BSTR;- j' h4 D: A8 x0 s) X( b
pokeVariant[1].bstrVal = itemStr;7 v" v/ t3 i# ]+ b5 @
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topicStr = SysAllocString((WCHAR *) L"system"); ( X l/ K) `# @ VariantInit(&pokeVariant[2]); ) y( ?9 T7 m* T1 v5 G' U
pokeVariant[2].vt = VT_BSTR;# e a( R8 H% a
pokeVariant[2].bstrVal = topicStr; 7 M6 f1 E1 p. I6 G0 W# `, [ C7 \8 O c) a1 E& \* u5 m$ i# h
// Set the DISPPARAMS structure that holds the variant. 7 U6 ?; S5 k" ^' ^3 Q, v1 _+ r4 `, j
dp.rgvarg = pokeVariant;4 G8 f, u/ |- Z0 b. D+ [
dp.cArgs = 3;) X( k7 j1 B6 ~' c; j+ x
dp.rgdispidNamedArgs = NULL;# u$ F$ c- e. L' m
dp.cNamedArgs = 0; : o' \4 t: v) E/ d' M% f9 U- W' H& k( @ M# \6 ]( O
// Call IDispatch::Invoke() 4 o5 m% W& Y9 \6 \- l+ d/ C. y2 ?) m u# k# r' k
hr = m_pDisp->Invoke( - g( S- O5 S; w+ r pokeID, / d3 M2 i3 ~+ V' P7 N IID_NULL,$ `7 L: A4 w, p5 Y7 \
LOCALE_SYSTEM_DEFAULT, * v1 ` ~& G% s DISPATCH_METHOD,1 Q( P/ u% f+ I1 `* E
&dp, 7 i2 M3 y% G/ q" A5 |% B* E0 f NULL, 5 u8 `: L- z f' R7 M &ei, + N. F9 {9 F- u t+ K7 y: @0 Y1 ` &uiErr); . s: A( A7 t- d# l! ~, l, A / {6 Z0 v" ?5 z; ` SysFreeString(topicStr);/ ~: |$ J) t" v# u$ b
SysFreeString(itemStr);% z6 ]% y( ^ g5 M/ l- m* p8 P
SysFreeString(valueStr);9 q& u- R/ ?% ~: I# ]
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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???4 j! M# _; k: a' j
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???? / c# h' ~; n0 }+ \, R$ ?9 `' @ * G, n. |: o7 D) s- b1 s# ?6 D& U3 f9 X
2.这是request的程序 $ C+ W' O% n' F* B" c7 [& u// Request a value from Extend , k; i0 q7 |. H; z/ A' T& k# U//* \% t; N; M* y8 V, U/ Z
// Initialize the variant that will hold the BSTR. Set the variant's; R4 _ ]7 J" M8 m: ~& l5 D
// type flag to indicate the fact that this variant holds a BSTR. Place the 6 x# h) }# J) d" `7 ^9 @// BSTR into the variant structure.7 K: G- P1 P2 Y! j# l+ y/ A
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 ~1 C2 ^. {( M& n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ M" M3 V9 T- B+ f; u
VariantInit(&requestVariant[0]); " Y+ m# S, ~: U; Q! x6 F
requestVariant[0].vt = VT_BSTR;8 F4 ^1 Q( Y; K$ @0 `
requestVariant[0].bstrVal = itemStr; % N1 l/ K. X. W5 P a2 K6 o; _; {7 X topicStr = SysAllocString((WCHAR *) L"system"); # M# Z* v" I7 N; {: r" h VariantInit(&requestVariant[1]); 9 h" q6 ^$ ~4 u" d: D
requestVariant[1].vt = VT_BSTR; 8 q+ r# _! v* J" G9 h requestVariant[1].bstrVal = topicStr; S. _$ a3 n1 Z
/ n1 s! A; o* m// Set the DISPPARAMS structure that holds the variant. W& D8 C* i) y9 L: W
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dp2.rgvarg = requestVariant;1 N, @1 d M. u
dp2.cArgs = 2; ' ^; t$ _1 Y3 u dp2.rgdispidNamedArgs = NULL;* L1 X5 j: M5 ~/ i8 ]* g0 F7 Y7 R6 ~
dp2.cNamedArgs = 0; 6 j7 K2 b, }- z5 n( \9 t/ k9 h6 m8 I6 W q5 A1 r/ _* G% } var.vt = VT_EMPTY;8 G/ J/ n) R9 p6 ~/ I