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:# A3 j' [1 B. T. R# ?" {/ ?7 N
Name = (WCHAR *) L"Poke";2 s! r2 }3 u( \0 ?4 ~ E. s
5 M) V$ M% J- }- m hr = m_pDisp->GetIDsOfNames ( / C% H& H8 I; d4 O& L IID_NULL, // reserved + |5 g' f! {9 i1 i$ f: g$ d &Name, // Array of names to get IDs for" q5 a. o' g/ C# `& b
1, // # of names in the array" t# j0 N6 t; L. f" q
LOCALE_SYSTEM_DEFAULT, // System locale) Y1 B& n) t7 l8 ~
&pokeID); // Array of IDs to fill on output* d5 z& L I; U8 M
% @$ }3 R; A! ]) G* ]5 C5 T- C% q: B if (hr)1 t. e3 x1 L' Q8 H: g( `
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MessageBox ("Get Poke Unsuccessful");. h# D) d O! ~; i$ M" p
return;, I5 J2 S& w9 n" g. n
} , l& k' Y2 }# X; V ' S) G" M/ B' c1 y/**************************传递数据给extend**************************************/ W! D3 r- |; U: Z: E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& K: J5 [( i$ d& c1 A1 I, F
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valueStr = SysAllocString((WCHAR *) L"1232");) ^2 Z7 \( B" m3 X3 k
VariantInit(&pokeVariant[0]); ; w Q2 m2 ~6 g- \; O: k* ^
pokeVariant[0].vt = VT_BSTR; , J& P0 v# W% a2 a$ m6 o, _ pokeVariant[0].bstrVal = valueStr;% e- Y3 o5 H5 {+ x6 K9 K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " v6 D1 R1 o) | I3 @ VariantInit(&pokeVariant[1]); 4 s( t! D+ X, M+ R; h+ Z8 R4 E0 i
pokeVariant[1].vt = VT_BSTR;0 X* W& B3 T+ q9 ~7 k3 @
pokeVariant[1].bstrVal = itemStr; 5 _4 y4 T. }5 @, R( n) N' m) i5 p! n7 C/ p& H# c1 e
topicStr = SysAllocString((WCHAR *) L"system");. \0 A; y) G" }' |- `
VariantInit(&pokeVariant[2]); ! p. `0 @: Y) ^7 E6 h8 H/ B$ p pokeVariant[2].vt = VT_BSTR;, u$ @: u8 F6 e) E
pokeVariant[2].bstrVal = topicStr;8 m1 k8 }$ Y: P9 {7 g
; l! n" N) [7 p" J* u' x* r& r0 p. {// Set the DISPPARAMS structure that holds the variant.5 t1 ]4 r) ^5 M1 ]
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dp.rgvarg = pokeVariant;. T- s" P# V7 I' O8 f) W
dp.cArgs = 3;- w$ q2 [* J8 d9 L: D/ q
dp.rgdispidNamedArgs = NULL;" e9 S; \$ |! U2 Z: P9 R
dp.cNamedArgs = 0; & j/ B3 ]: t$ \4 O$ F: N/ f" h1 T* `# j% A+ X! @- V
// Call IDispatch::Invoke()6 U* K" ~& G% N$ x/ C! i/ g0 L
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hr = m_pDisp->Invoke( + ^& {. J$ b& j pokeID,4 h( t! ~6 `+ h. i
IID_NULL, 7 C, S: {; ?4 l* z- [ LOCALE_SYSTEM_DEFAULT, % s3 z8 b3 r% \9 T) D/ Z8 N7 ] DISPATCH_METHOD,. F7 C. J' ~1 h6 Q, _) Y
&dp,) |+ Z. X. k. q" m5 f* N
NULL, g5 N4 V0 i$ t1 A# D5 Y
&ei,2 M) c8 }) `: E! r
&uiErr); - I9 z$ {, G* D7 J' [ 2 H" [' R8 y# h9 s SysFreeString(topicStr);" L# o0 Z3 r4 K0 b* v3 P
SysFreeString(itemStr);. E3 T( ^: _8 W5 K3 W
SysFreeString(valueStr); 0 u) v) g! ]- X" k4 T+ y1 b4 |% B1 R* ^. h4 ^! A
现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据??? " [3 O1 f* Q1 ~& \此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现???? e1 e8 j, R- }, A! v4 z
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2.这是request的程序 5 m( \) M! b+ J// Request a value from Extend: n2 }& _+ D4 }) M
// ; _6 J' a* L* C3 c6 g// Initialize the variant that will hold the BSTR. Set the variant's 0 d5 O$ y& ]: P8 }4 N// type flag to indicate the fact that this variant holds a BSTR. Place the ! d: m4 p+ A) I! @// BSTR into the variant structure.% Z# |! Y. ]! v5 p# G" ~/ I
* J6 X6 W/ A- }! p3 q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); & E7 a2 e" Y1 O. j " s8 \% S" h+ }8 \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & N, c/ Y4 ~- n( i1 I7 k5 Q VariantInit(&requestVariant[0]); ; g7 b1 W- W. u* M+ U) C/ ] requestVariant[0].vt = VT_BSTR; : N8 p1 y& Y5 Y" J0 p& N$ T requestVariant[0].bstrVal = itemStr; : b! n3 B; A/ E* r% u x, M- X8 @" J$ n topicStr = SysAllocString((WCHAR *) L"system"); 5 W8 z& h/ O& W" G) ^3 d4 _- U VariantInit(&requestVariant[1]); * y/ x6 P6 h' H( p1 g! o% R
requestVariant[1].vt = VT_BSTR;0 J: q. W9 T; l5 s: ~
requestVariant[1].bstrVal = topicStr;) }! ~! d/ Q4 V9 E+ S
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// Set the DISPPARAMS structure that holds the variant., \% R* V% f; k. F. Y& |
4 D. @, `/ @; }8 c dp2.rgvarg = requestVariant;* \8 Q# s. q) @6 i
dp2.cArgs = 2;$ u& Q2 q6 {0 g' y
dp2.rgdispidNamedArgs = NULL; # `/ B* @2 o9 B, P5 k dp2.cNamedArgs = 0; ) _& q- ?0 A. [ y2 x5 j; f2 o, \% T$ A/ J3 W
var.vt = VT_EMPTY; . w) E* R, h- E8 \; L5 ?6 c6 M: d. k9 n0 S- G) w+ M
// Call IDispatch::Invoke() / O2 N" k" u0 Z: [ 5 w @1 T1 N- i0 F; s hr = m_pDisp->Invoke($ H( {1 V) s o4 x0 a8 S9 M
requestID,! R+ m& X, ^/ W P! h
IID_NULL,0 w" @, D7 g7 T- P
LOCALE_SYSTEM_DEFAULT,7 w3 F& O% `2 l5 i' Q
DISPATCH_METHOD, $ E% \( R7 V* A &dp2, 4 T8 a0 _5 \2 N5 o2 T/ C &var," e0 S2 P9 a2 j+ W! a0 o- L
&ei, \4 E9 c3 V3 R/ ~ ^
&uiErr);6 D. b) A, X5 j
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SysFreeString(topicStr);, k; c8 a X9 R: @8 Q
SysFreeString(itemStr); ; B- x4 R: J- ?请问该程序是获得extend里面的哪个值? : g1 W1 b. Q# f0 ` P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????