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: # V& S7 X) y$ \2 j7 ?7 FName = (WCHAR *) L"Poke";% _5 t+ S$ O) ?6 z: J4 r+ p
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hr = m_pDisp->GetIDsOfNames (4 C% v2 P6 Q( h' m
IID_NULL, // reserved9 i) d# M2 n/ K b0 g- y) p2 z
&Name, // Array of names to get IDs for 5 U; p2 D7 d# A 1, // # of names in the array1 i. Y' v! b5 s
LOCALE_SYSTEM_DEFAULT, // System locale" e+ w/ ? D/ _& J# z4 X J
&pokeID); // Array of IDs to fill on output% `$ R+ I, w7 \, ~* r# b
' `# R l, |$ O; S6 ` L if (hr)* Q$ @1 r0 m9 }1 n! Z9 V% c
{ ) l# G" [1 e2 Z MessageBox ("Get Poke Unsuccessful");- l3 Z! P9 |2 f& n' ^
return; n" V; n. G* H2 y% t/ m
} 1 ~* D6 T- Y. P. k. U( q3 o _ ( h: ~& T, D! r: b+ F0 \/**************************传递数据给extend**************************************/& ~# ^0 T. e8 P; c, s$ s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . k: f& s7 \& M9 |4 q% k& b + T7 A; H+ N; o. `" h valueStr = SysAllocString((WCHAR *) L"1232");* m% l" y$ K$ }4 M. p
VariantInit(&pokeVariant[0]); & `* b4 F5 Z$ y3 ?
pokeVariant[0].vt = VT_BSTR;; {% {% q# A6 F% l) L) C
pokeVariant[0].bstrVal = valueStr; 8 a( ?( h4 A: A0 [. X J3 g/ G. a* T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ P% X+ M/ f5 t7 d; k1 V4 k# D
VariantInit(&pokeVariant[1]); & I: p( R3 @+ f8 H pokeVariant[1].vt = VT_BSTR; 5 T+ o. {0 i) D* P pokeVariant[1].bstrVal = itemStr; * n# D0 G) `& D& m + b) H% l, F* V1 U9 W5 w+ W* P topicStr = SysAllocString((WCHAR *) L"system"); % A2 y8 e' K0 T2 i U1 t: ~ VariantInit(&pokeVariant[2]); " J/ a. d/ M, m9 Q
pokeVariant[2].vt = VT_BSTR;$ I$ i2 x# z- f4 K
pokeVariant[2].bstrVal = topicStr;4 [& D" |& S5 ^% F% l
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// Set the DISPPARAMS structure that holds the variant.2 ]7 }* y8 K+ h, g6 F$ P
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dp.rgvarg = pokeVariant; " S0 E5 n4 h" r/ r. c4 x dp.cArgs = 3; - ~/ B- H0 ^* k9 {% A dp.rgdispidNamedArgs = NULL;# u! E# z) Z" x4 y: F
dp.cNamedArgs = 0; # \6 E1 |- r# ~4 y/ I ( {9 ]% p0 s: a% y' _* z// Call IDispatch::Invoke()" M) J9 w8 m! F) k1 L
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hr = m_pDisp->Invoke(7 i6 x1 J8 L/ s0 A5 {9 l
pokeID, 2 K w. L: b$ _1 f) L* m IID_NULL,8 g- y8 ?7 V6 @1 l/ k1 p2 G
LOCALE_SYSTEM_DEFAULT, ) `' M2 \4 B; f5 p$ b- W) _6 v DISPATCH_METHOD,( o1 C& H7 W' i9 S; r A b
&dp, % ~9 A8 F# [0 W8 u NULL, * ~1 c5 N3 s+ o4 W, R" [ &ei,1 E- c# c t3 B
&uiErr); # q9 n, `4 R" ]! u% n6 n3 c 3 c+ A- N9 w/ {3 _* w SysFreeString(topicStr); 2 W& K+ I. _8 r" d* Q: E SysFreeString(itemStr);; G& S0 _# U& k1 p I
SysFreeString(valueStr);4 h# P3 s6 r5 M, E9 y" _
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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???: d+ E& M) W+ Y7 _5 j$ x
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????( r2 K% F3 T: b2 _0 ~) x' p
( T8 P: D' | k8 P " Y- A, i9 m8 n/ l; _2.这是request的程序 {' @6 T# [+ k' q7 }/ ]/ ]* f
// Request a value from Extend / R9 c9 v& Y# V9 J! p" Y( x// & S& X% s/ c' M! W# S* P; N9 Q// Initialize the variant that will hold the BSTR. Set the variant's 7 t n! J, t* L! U// type flag to indicate the fact that this variant holds a BSTR. Place the 8 _, ]! B" t1 I/ G) @// BSTR into the variant structure. ; c% U0 P* I) n/ K 5 \7 X9 V+ G0 B8 A7 I requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 i8 b+ S! V- [8 ^6 r1 S# A
9 I7 B. R2 i; L$ Y6 v# [ e' ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - h4 K/ Y3 J3 H1 |: G6 P VariantInit(&requestVariant[0]); ; r; n/ e- A" S9 j
requestVariant[0].vt = VT_BSTR;/ t5 z: s* C% W% N
requestVariant[0].bstrVal = itemStr; : L6 T' ^, P X , N4 Y0 I) p7 Q5 G topicStr = SysAllocString((WCHAR *) L"system");! k' r3 W4 d* Z% [6 H+ g6 G9 X
VariantInit(&requestVariant[1]); 8 f$ \& z$ L7 ~5 K V6 v
requestVariant[1].vt = VT_BSTR;" G4 c" D& d! h
requestVariant[1].bstrVal = topicStr;( j T. r' P D
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// Set the DISPPARAMS structure that holds the variant. 1 X. ~9 Y" m9 `! r) ^* v$ Z9 p9 O2 J2 K- H6 h5 T
dp2.rgvarg = requestVariant;% i% M! I" j& C; y4 V
dp2.cArgs = 2; ! |' _2 h! b! X- d dp2.rgdispidNamedArgs = NULL; $ I6 [0 B! A" ?% `- W/ I+ n dp2.cNamedArgs = 0;! f' u0 T* y( M$ v9 Y3 [1 B9 a/ P
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var.vt = VT_EMPTY; 7 I2 b5 W$ @+ {4 E" d, }( @( F% X8 v y! i1 ?- J
// Call IDispatch::Invoke()8 }1 M3 k( f% T) o# Y
+ U' L4 y/ G, V* y9 Y4 f* X! L hr = m_pDisp->Invoke(1 z# W: a- _, s* f0 V3 ^ Z/ j$ y
requestID, " E: @. l$ U! N6 ] IID_NULL,! P. y! Y. e' W4 r' V
LOCALE_SYSTEM_DEFAULT,$ M) ~; x2 N1 |% @. }
DISPATCH_METHOD, $ x$ ]+ U$ ^8 v/ s- ], o &dp2,: T/ P3 v/ i$ u& V4 v
&var,1 _. I* E7 q9 l$ [3 K
&ei, 5 E6 L a/ o1 Z( t; y+ U. [+ Y6 t &uiErr);% ]; a. m6 }, z* ?" @
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SysFreeString(topicStr);! U1 w& t% I; c3 Z1 t. \1 s- L
SysFreeString(itemStr);2 l, l6 k* A: x0 y2 D4 W+ x; b4 X/ N
请问该程序是获得extend里面的哪个值?: `* e+ l& U9 E! a4 w
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????