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:2 L& u. F! g) z+ B& v: H+ t
Name = (WCHAR *) L"Poke"; . D: k9 y2 }3 z( T+ A+ }, K ( ]9 O( `. S& T hr = m_pDisp->GetIDsOfNames (: f5 K0 n ~- ]
IID_NULL, // reserved; I& _9 u) L4 k' l/ v
&Name, // Array of names to get IDs for # k+ ]2 V$ `3 M 1, // # of names in the array2 v: V0 p: a' N6 Y$ Z
LOCALE_SYSTEM_DEFAULT, // System locale " b' p: G3 X# U8 E Z5 M &pokeID); // Array of IDs to fill on output! K2 X' W) I5 W6 l
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if (hr)/ N: P7 U/ B2 t6 h
{ 0 Z, J3 i& m8 J( a ~ MessageBox ("Get Poke Unsuccessful"); ' F& k x p3 j1 a A5 {6 E return;! Z+ q* |% }. v6 _7 N7 T" t
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2 R% c1 ], Z7 j# Q7 \' z* G% A8 H9 F/**************************传递数据给extend**************************************/ " U$ P# r) |" E2 [- x a+ J s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 l( x6 y6 ~: D C ! m. r2 [# k! R1 o, H, k0 Q
valueStr = SysAllocString((WCHAR *) L"1232"); - F: q* i5 E6 k; Q; j VariantInit(&pokeVariant[0]); $ s* m y$ J. B v* w: p2 y pokeVariant[0].vt = VT_BSTR; 2 v8 c8 K* {3 U2 p7 q2 W0 v2 j. H; ?% ` pokeVariant[0].bstrVal = valueStr;% l# T2 y& x' [' m! M t& S
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; q& [6 E8 M+ g
VariantInit(&pokeVariant[1]); 8 @ a: ]' W3 b4 h
pokeVariant[1].vt = VT_BSTR;+ q. c4 b1 t' e& ~+ L$ v
pokeVariant[1].bstrVal = itemStr;9 t+ w* {9 j" \8 X, z, i) ~/ d3 Q
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topicStr = SysAllocString((WCHAR *) L"system");5 \ Q9 ]% O' \/ j w E! G5 `
VariantInit(&pokeVariant[2]); 3 ?: u7 ^" X2 P5 a1 q
pokeVariant[2].vt = VT_BSTR; , h2 F( o T* S pokeVariant[2].bstrVal = topicStr;4 x" d' d7 K8 j# R
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// Set the DISPPARAMS structure that holds the variant. 1 J D, x7 |, e( ?5 ?1 c6 M- c, p- z0 a7 U
dp.rgvarg = pokeVariant;8 v1 a( S$ I9 U) d0 Y |% p
dp.cArgs = 3; 0 r% S8 Q) i. K/ X( b" H dp.rgdispidNamedArgs = NULL;$ k# {: x( E+ E& @
dp.cNamedArgs = 0;: r3 d" a ?0 d6 r; C. r! r
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// Call IDispatch::Invoke()$ J3 Y/ Q) \. J5 ]; K
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hr = m_pDisp->Invoke(8 ]0 C# q8 {- v) }% d v
pokeID,& }! s4 w) _8 s' ]
IID_NULL,) A& P- z+ M S* ~0 s/ s
LOCALE_SYSTEM_DEFAULT,1 O4 j. e- r! U/ [0 e! T
DISPATCH_METHOD,+ ^7 b, J* p* Y8 t
&dp,9 b; {( ^9 @! [! _2 j4 I
NULL,+ I7 o$ D2 u/ @" p% h
&ei, 7 }4 e+ Z O, T4 ` &uiErr); 0 l6 H9 a$ ]% A& Y7 F( j6 Y. P9 H& t* v; H
SysFreeString(topicStr);! O R" ?- W8 h3 F8 I9 G
SysFreeString(itemStr);4 Q& O3 R4 |: @$ I0 E
SysFreeString(valueStr);( I3 j* b: z7 t+ A' W, E
' w/ H" }. g2 X# k: ]5 r5 Z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???: F1 u6 p' g$ p( q# h
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????% m; C% o' E5 Y
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2.这是request的程序+ |. y3 L6 j/ o+ ?4 _/ Q3 ~
// Request a value from Extend + [' n4 Y" @4 h! [* l// * q6 o8 C3 t4 [" Z; U; ?// Initialize the variant that will hold the BSTR. Set the variant's! I" P3 G' L& {
// type flag to indicate the fact that this variant holds a BSTR. Place the' ]: n# y/ d; S& E1 D; T" u) c0 X
// BSTR into the variant structure.0 a7 v. @* u2 c8 y) X0 m( A- B1 Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! [7 w1 R5 R& F1 U& v3 w$ o+ t
0 c, n' p5 S+ Z5 z6 { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( A s( Q4 _, H; L3 d7 P
VariantInit(&requestVariant[0]); - h- S3 G/ _2 |4 w9 u8 m- k: Z requestVariant[0].vt = VT_BSTR;$ Q: V1 `: F' X
requestVariant[0].bstrVal = itemStr;+ W Z- m: i" {
6 v+ \ z5 {9 P# `- [ topicStr = SysAllocString((WCHAR *) L"system");' D7 K, C( H) }6 R5 e' t8 ~
VariantInit(&requestVariant[1]); 4 | ?2 b% Y) D5 c requestVariant[1].vt = VT_BSTR;" k' Q: h% j4 X% |9 b
requestVariant[1].bstrVal = topicStr; * ?5 ~3 R' a1 [3 a& ^, T1 d# t. `& j% J+ n- J
// Set the DISPPARAMS structure that holds the variant.3 j' K6 i5 k. n$ r' I! ~8 t
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dp2.rgvarg = requestVariant; . z! @ @# \* F1 y! K( I' @ dp2.cArgs = 2;& {. g) e& I2 H a
dp2.rgdispidNamedArgs = NULL; - \! F2 ] Z4 ?& V2 S( C* r8 Y" @ dp2.cNamedArgs = 0;8 A; }/ C) e7 c8 i. d* z- }
& {3 [% A9 Q6 d
var.vt = VT_EMPTY;% W1 F9 ]: {' C
! k2 q3 J1 k" a5 j// Call IDispatch::Invoke() 2 y; f% L R7 p8 f) B * I$ K& O1 s0 f- b7 H, M1 U hr = m_pDisp->Invoke( 4 o v* i2 \8 j. l( L requestID,5 }1 [0 s" j; u' e" B& x
IID_NULL,8 B# i$ z# F+ y* G+ ~! z* o
LOCALE_SYSTEM_DEFAULT, $ a+ _( r% G# d" E- A DISPATCH_METHOD, ' Y+ G. Z+ s ?* p- C+ e &dp2, / V3 l6 ~, A7 | &var, ( U$ i* @+ U9 _1 B S6 @5 q &ei, * g: X( o6 e6 H( [4 ? n &uiErr);" l' }% g3 [: r7 `, H; w
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SysFreeString(topicStr); ! d$ {0 g; Q4 b8 j SysFreeString(itemStr);1 M$ o7 G' ~' U/ H7 X
请问该程序是获得extend里面的哪个值?7 q4 f' U9 G; i
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????