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: 7 |" s J& }, T6 I+ k4 LName = (WCHAR *) L"Poke"; ) g D$ ~; D) {3 M$ e/ v& i - T" r) L, X( ~0 A& Y5 Z, }
hr = m_pDisp->GetIDsOfNames ( & ^% L1 r" Y! y H" C IID_NULL, // reserved ) G$ K# R* \. f: d9 x &Name, // Array of names to get IDs for: l& i: M+ O; D+ N' i. A
1, // # of names in the array' U* U# {% j/ r Y
LOCALE_SYSTEM_DEFAULT, // System locale 1 k' `$ w2 s7 j& D &pokeID); // Array of IDs to fill on output * N+ k1 S+ t4 P# P2 D& h B) ~7 N k; p( x# ]- H
if (hr)/ ?/ J/ ?2 b; {9 h& @7 m! F) s
{ ) O" e3 i$ B. R& d) m4 m MessageBox ("Get Poke Unsuccessful");; n8 o4 c6 y* l9 S
return;+ }- l/ ^" J* T% {3 s4 I2 f
} ; b: [$ c/ t) V6 Y7 Z# b* k3 e. W0 x( H4 t% G# H' U& C# [' h+ }
/**************************传递数据给extend**************************************/$ I Y% t3 x \! k: C6 C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ^; l/ I6 n* C9 M5 Z* z" i % A1 B1 d% R. L ?1 \8 S- I valueStr = SysAllocString((WCHAR *) L"1232");- K$ i" y6 i% X9 m: ^
VariantInit(&pokeVariant[0]); " k: f9 k" w, r) d& x pokeVariant[0].vt = VT_BSTR; ) F: h! j* f9 f* u/ S pokeVariant[0].bstrVal = valueStr;% [: d/ ?/ J' x
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % |, t" i5 }1 j& Y! L# f: M8 S VariantInit(&pokeVariant[1]); & z6 i) W$ {7 }8 S* e) w
pokeVariant[1].vt = VT_BSTR; 3 G# b1 h4 }, |) D! ~ T1 B. ` pokeVariant[1].bstrVal = itemStr;+ B8 w1 T" Y1 o- F
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topicStr = SysAllocString((WCHAR *) L"system");$ y* v3 c" @) o0 W7 U) X
VariantInit(&pokeVariant[2]); % C; z% q& o: e4 B/ i5 b" R4 d5 W0 L
pokeVariant[2].vt = VT_BSTR; 9 F' L7 x6 X! }8 |9 e pokeVariant[2].bstrVal = topicStr; 0 m2 [/ B. o* @' C; y& v; l& K 2 r2 ]7 i6 P$ G2 Q4 d) Z! T* s// Set the DISPPARAMS structure that holds the variant.3 u( P2 U* M( S$ ]7 Z
* R! J0 q6 k9 } dp.rgvarg = pokeVariant; 8 G! `) r2 F. `: l. X1 i$ \6 w( H( M dp.cArgs = 3;+ Y2 t1 ]- [5 M x* l
dp.rgdispidNamedArgs = NULL; & }) G/ u( B1 { dp.cNamedArgs = 0;9 A$ Q, J- y! t- t! S2 I; y
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// Call IDispatch::Invoke() # s* A9 P v# `9 m 7 n) O* l2 u1 r hr = m_pDisp->Invoke( 8 Y2 U# i6 o7 n( _4 g# _, S. n pokeID,; A% [6 O; C" j# K
IID_NULL, " g% H; U" S: ?& h LOCALE_SYSTEM_DEFAULT,4 l$ ]5 x! T# z
DISPATCH_METHOD, # v; ?, f7 A6 @# x: T &dp, ) Y# i7 d! I: G! C NULL, 1 \% c2 o, `+ F& X1 k( I &ei,8 K7 D# ~# n* \! G8 l: [& {: |
&uiErr);( d/ {8 C& J6 i2 n
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SysFreeString(topicStr); % b1 U" A2 L6 {1 r9 O$ n, X SysFreeString(itemStr);* a( t* _ w6 H: }& C1 d
SysFreeString(valueStr);# P* r! n$ J& u: m& D
) N& ]0 B' D; J' w$ e/ `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??? : u9 p5 T e' F7 H" Q) {& \* B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????3 N$ r4 k; L& K6 k/ f
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2.这是request的程序 ; c$ F- ^ D7 G5 y, N6 n0 d* u// Request a value from Extend # m3 _ ^1 S g* E ]// 8 j- J7 L9 c6 g+ r3 `! I( D% x// Initialize the variant that will hold the BSTR. Set the variant's , e& Q4 P" p6 ^// type flag to indicate the fact that this variant holds a BSTR. Place the / S1 y$ x% t8 B1 }: z// BSTR into the variant structure.' v/ M9 ]! N9 Q$ {, I4 {
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 r7 m9 n0 J2 k9 t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 n3 j4 O/ y6 F VariantInit(&requestVariant[0]); : V( @. r" M$ G7 {( _0 } requestVariant[0].vt = VT_BSTR;! p: ]1 ]/ S8 A! ~& e/ x4 f" r' j
requestVariant[0].bstrVal = itemStr; ! U$ I2 k7 h+ i4 U. ] w7 |1 |" G1 Z0 w topicStr = SysAllocString((WCHAR *) L"system"); T0 M* F, S7 u% |4 l
VariantInit(&requestVariant[1]); , D* l, N) s2 v+ o m
requestVariant[1].vt = VT_BSTR;) T2 N0 B( N4 \2 H& Q* l+ o
requestVariant[1].bstrVal = topicStr; / b- j l0 l9 x5 E/ Z . O7 F6 c' a ^% _! @2 q5 a, q// Set the DISPPARAMS structure that holds the variant. 7 E. v& Q# c& M7 ^* W' K% g; O) R# r- @1 q+ e* X
dp2.rgvarg = requestVariant;( E. {6 ~- Q J3 ^5 a
dp2.cArgs = 2; 9 M! I* X7 E# E dp2.rgdispidNamedArgs = NULL;. R1 Y: [8 o& c7 K$ D: e8 ^" Y2 x
dp2.cNamedArgs = 0; 0 ^3 K9 o/ O7 c. n& W8 [# y) b1 \
var.vt = VT_EMPTY;5 s3 J) ~/ U- Y1 r4 q, N# h7 o
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// Call IDispatch::Invoke(). l6 O) [6 I; J, H9 J
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hr = m_pDisp->Invoke(" \) s' v0 s: H8 L; a
requestID, a: m1 U1 h: O: p IID_NULL, " [* }% B/ i0 K) l+ N5 s7 K LOCALE_SYSTEM_DEFAULT,. B2 p( x, P/ n( w
DISPATCH_METHOD,% E0 `! R g3 t* E" Z" R4 J
&dp2,) v" G V4 T; C: `
&var, ) R, i% d9 _" u2 O &ei, : q" y2 T5 {/ W &uiErr);# w8 b1 J# U7 S2 S4 E" w' X
- g# H8 Z& @% m" ]. O/ M9 R SysFreeString(topicStr); 8 Z5 q7 X) N, K: T SysFreeString(itemStr); 2 V9 m; v; C) F7 Z. c& V. t请问该程序是获得extend里面的哪个值?: _0 N3 Q6 l8 C9 b# 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????