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:4 R, R+ i, m3 V2 L0 ?0 R, d/ P0 E
Name = (WCHAR *) L"Poke"; 8 }0 \( K: Q9 x6 O0 x. M , V, _& p7 `) L* O
hr = m_pDisp->GetIDsOfNames (% A) L" d: {3 I4 t( w P: T
IID_NULL, // reserved1 |9 y; [# S8 T8 m
&Name, // Array of names to get IDs for* C3 r. o( \+ M4 @
1, // # of names in the array 1 T9 b& W. t6 E r$ O9 _( U8 g LOCALE_SYSTEM_DEFAULT, // System locale 3 ] y% T" Y7 F. K &pokeID); // Array of IDs to fill on output1 ~9 Z) {+ a3 f6 C' Y6 o
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if (hr) # o+ U+ [% f) z/ f% B( u9 a { / a- }! {7 ^6 g) f( A2 Q. l MessageBox ("Get Poke Unsuccessful");2 {2 K) P2 k/ f' o* ]
return;+ U8 ?2 L1 C) w- l! q
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" W2 _1 m/ r+ H+ s/**************************传递数据给extend**************************************/ * Y3 F1 f5 [% E* X pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : t R$ l2 V5 N8 s* r0 K( X / B0 l, a$ b) K9 v valueStr = SysAllocString((WCHAR *) L"1232"); 6 B2 T$ \6 q5 _6 ~ VariantInit(&pokeVariant[0]); , q: j/ w* O! n2 `6 o8 B pokeVariant[0].vt = VT_BSTR; 7 b4 X, K. P) @ pokeVariant[0].bstrVal = valueStr; w2 k5 @. x2 N& O; a& g: j# E b8 I, z9 A- n, [
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 q. K2 f1 c( I( Q" R VariantInit(&pokeVariant[1]); " O4 n/ L% }+ p$ ]& Z2 V U
pokeVariant[1].vt = VT_BSTR;* A4 E" i: F1 z8 k- H/ q
pokeVariant[1].bstrVal = itemStr; ; ~1 J) W6 A3 Y6 L) o2 W/ t0 s/ J) Q3 X. S
topicStr = SysAllocString((WCHAR *) L"system"); + b" I, ~2 E6 y& b8 b6 l( Q l VariantInit(&pokeVariant[2]); . Z) ~$ q2 a! v* ]. U! w2 [
pokeVariant[2].vt = VT_BSTR;" m% l. y) T0 ]7 f" [- ~3 \
pokeVariant[2].bstrVal = topicStr;" I4 W7 m+ e, \: J& K: H* X
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// Set the DISPPARAMS structure that holds the variant. , `$ O; h6 H; l- O - v! L- S% _' d4 G5 {7 G8 ?8 C dp.rgvarg = pokeVariant; ( T# q/ s2 k: _; l) H dp.cArgs = 3; + {9 [. k( b& S0 e3 u/ W dp.rgdispidNamedArgs = NULL;5 e, f8 V4 g# r
dp.cNamedArgs = 0;( f8 z- e, z5 n0 _+ H% Z
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// Call IDispatch::Invoke()3 m) z: }, H) r! u
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hr = m_pDisp->Invoke(: f C# `* ~( b* G4 y
pokeID,( |3 B0 ?/ y" s- _
IID_NULL,$ `( v5 ?6 g# W2 O4 i6 X7 c( J( _
LOCALE_SYSTEM_DEFAULT,# j, H+ `" y7 x7 h
DISPATCH_METHOD,, H9 K" F& K \' H$ P
&dp, 3 M/ F/ h% t- O/ \0 K, n( @ ]/ u NULL, ' S+ C/ p+ v; o2 \) _" Z &ei, : R; E9 ~9 @* _9 P, Y& Y7 _ &uiErr);# H! e/ W' d( A2 P9 C
/ I* A- u$ t$ W3 B: ?! A2 b) g SysFreeString(topicStr); ' V4 s1 @! p+ i/ d! [; @ SysFreeString(itemStr); * @* U t; s! D: s4 m" p0 j SysFreeString(valueStr); + W! p7 ]6 n- M! @. i ' O, b2 @( R/ x$ R, {7 T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 p( I* a% J7 h, P' Y) i. N4 E. U) ]9 q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???? ; x' U. |! Z7 K/ R U 6 y0 u i' V* q# F* g- j' }* e; l6 C/ s" x" r) y. G
2.这是request的程序% i; Z' L+ W# J6 Y5 Y- K' H# `
// Request a value from Extend $ S" @! ~2 T7 F4 W// . T7 s% o; w7 O- q// Initialize the variant that will hold the BSTR. Set the variant's( `2 P7 L' s+ |2 U; D; b
// type flag to indicate the fact that this variant holds a BSTR. Place the) [5 f5 T2 J8 d3 Y$ |+ q) O
// BSTR into the variant structure.) j' w3 e9 q5 m: Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); * w% E- M- i+ \- r& k2 i, n 2 {9 T2 ]- k5 W, W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 Y5 \* i* Q9 k' u( X
VariantInit(&requestVariant[0]); : F' R& k$ |0 l& f9 x
requestVariant[0].vt = VT_BSTR;7 ?/ V& H3 u" D* x# ~
requestVariant[0].bstrVal = itemStr; - K6 O* C. E8 L. g$ n9 W+ b: `- r8 m, a& A3 A
topicStr = SysAllocString((WCHAR *) L"system");$ Y. X1 V5 ~4 U, N6 C+ J
VariantInit(&requestVariant[1]); & i: N2 ]5 a. s; B3 M- W" T9 [
requestVariant[1].vt = VT_BSTR;; b& O0 [$ \) ]8 J! z
requestVariant[1].bstrVal = topicStr; 9 V% G* T4 r A% s : Q/ s, e9 v4 N' a// Set the DISPPARAMS structure that holds the variant.3 r; }9 _: M! ]! P R
+ ^* m I6 o6 t dp2.rgvarg = requestVariant;# x6 m% I8 C7 K" E
dp2.cArgs = 2;5 k( N# c2 e" U* M! Q- r/ b
dp2.rgdispidNamedArgs = NULL; 8 @, W5 O; W) p' b9 y; Z dp2.cNamedArgs = 0;8 b, @% x* W& l9 O2 _ P f
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var.vt = VT_EMPTY;0 [1 E7 V/ ^7 d* L% w, G' @( A
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// Call IDispatch::Invoke()4 O0 ~; R- M7 K1 Z9 }4 ?& L2 y
8 R' O4 Q7 K4 `0 U& l hr = m_pDisp->Invoke(/ u9 S& @ z( P
requestID, " W$ H% L% T/ [3 n IID_NULL,: e8 f7 t' i. c7 l$ c8 {, I
LOCALE_SYSTEM_DEFAULT,9 U8 M" y5 r4 c% K2 _
DISPATCH_METHOD, 9 j' P% V, Z S3 m9 Z3 y &dp2, # y0 W7 |. w5 y+ w6 [: ^, y &var,' d0 R- A; V8 I; d- F
&ei,2 n% n3 B4 J$ M7 s% g/ U
&uiErr); 9 O( q. b1 S' j/ g3 s: i B! t
SysFreeString(topicStr);, J) M2 v0 S( Q$ i, ?
SysFreeString(itemStr); / }4 J0 l1 ~) p+ w: m; J请问该程序是获得extend里面的哪个值? ' P# M& h* k- T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????