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:3 E& I: b/ [1 l5 {6 |3 Z
Name = (WCHAR *) L"Poke"; s. N, r9 ^6 K9 K% s) }6 U! U
' @7 D @8 j' V* P2 R! h hr = m_pDisp->GetIDsOfNames ( & Q% W6 c- ~ g1 B: F# f3 c/ F: H IID_NULL, // reserved! A, ]* v* @9 S: U
&Name, // Array of names to get IDs for ; Z" J( ?5 P1 o4 { 1, // # of names in the array8 W0 t$ b& }; z
LOCALE_SYSTEM_DEFAULT, // System locale! W! H. x7 {: `. ~4 R; X% _
&pokeID); // Array of IDs to fill on output # D" C/ x. E0 X$ _1 H " t- o% B$ i" ?/ M if (hr) {3 V2 z5 O/ X4 E( L {' Q: N! W4 f8 C1 X7 {, _( j
MessageBox ("Get Poke Unsuccessful"); o. S* u& }7 s0 j5 E" f% B return; * F! G2 u$ g! F! A( T }& S; W, Y5 b- l* d
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/**************************传递数据给extend**************************************/ . \# @5 \5 h" o8 A5 `% p9 P; T$ f1 m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% p( L) E$ B; u+ |5 `
+ u9 J& X; `& J6 U5 k, S valueStr = SysAllocString((WCHAR *) L"1232");% M* ~6 ^. c5 P0 r2 v3 |
VariantInit(&pokeVariant[0]); ; W \' J; A# ~* v! _1 X
pokeVariant[0].vt = VT_BSTR;5 q; B7 x9 W- p) g
pokeVariant[0].bstrVal = valueStr; 3 ~* R; V5 ]2 m0 j & D& w, J+ R X4 F; }# c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 ~- E9 v, P6 Y& d3 ~$ f
VariantInit(&pokeVariant[1]); - u1 Y& q/ n, o" U; [
pokeVariant[1].vt = VT_BSTR;3 H$ ]5 g5 s; }
pokeVariant[1].bstrVal = itemStr; 9 D% R: B6 ]- @! t0 m, h2 a5 c9 Q3 u: H+ n9 D P
topicStr = SysAllocString((WCHAR *) L"system"); ) ? Z' P h T5 f3 m) k9 s VariantInit(&pokeVariant[2]); * E9 E; S M. p. k6 W% m! k: x0 L3 Y pokeVariant[2].vt = VT_BSTR; , W6 M% G/ K2 i3 v" W pokeVariant[2].bstrVal = topicStr;0 [% J& I& m5 y, R0 A3 D! b
% `! X j" P2 I0 d1 r7 W: z9 ^
// Set the DISPPARAMS structure that holds the variant." ]9 K' }& ]! @5 o; C }
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dp.rgvarg = pokeVariant;( b2 m$ @) B, ]' t
dp.cArgs = 3; " d5 D/ |( i; k- o dp.rgdispidNamedArgs = NULL; ' p5 q7 M$ ^) M. i. @7 M dp.cNamedArgs = 0;2 w0 ]/ E( a# k! o
) [9 ]! b! |5 ^" l1 L
// Call IDispatch::Invoke() 6 |) K$ Q5 G( }# o " n1 ]" l3 c1 q$ @; J0 l5 a1 [4 Q hr = m_pDisp->Invoke( - C. `$ s' B. u7 K7 l# F) d pokeID, * [' j) I( i6 i9 T5 m, ^ IID_NULL, 8 r: b8 L; F3 j1 X! d LOCALE_SYSTEM_DEFAULT,* ~) T8 f9 X0 t: q, Q ]
DISPATCH_METHOD,+ c+ o7 f9 m3 m
&dp," A$ }* y1 a/ U0 m
NULL, ! c* @! b' ]+ ~& { &ei, + G/ q) j' l: e$ j) [ &uiErr); v) B6 P& d3 i) d1 f2 W# p+ o, f9 l* f
SysFreeString(topicStr); + f. T, l7 R9 r SysFreeString(itemStr); $ _/ m Z% P& [% g+ R; S5 N/ B SysFreeString(valueStr); `2 g5 T: f8 K( O& ]7 H) T& V% {5 _" I0 C& T: I" _% i
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???* l. n+ U7 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????2 f( \$ J" C% j, o* j$ t' v/ \
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0 [) P, j; Y$ @9 j& E& J) D8 A6 b2.这是request的程序 & l2 h" O9 \0 e9 Y# g* r5 i// Request a value from Extend " N$ f! ]7 G. E- B; M3 e//4 P7 W+ y% v* c+ v3 I% z
// Initialize the variant that will hold the BSTR. Set the variant's: T+ C: |" \& z# |
// type flag to indicate the fact that this variant holds a BSTR. Place the9 b# m, Z9 _! L
// BSTR into the variant structure. 4 Y; C8 Y! `5 o: d2 d' k v) g% ]- Z) V# i/ H& s; \- o* Z
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 m `+ T+ r& W& W/ @: @% }- M 5 {0 Q- ?, C# G! u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, U# q6 W' t* Q5 j
VariantInit(&requestVariant[0]); ( ^' V0 k/ v6 _
requestVariant[0].vt = VT_BSTR;0 B1 p6 _- u( @5 _$ w3 h
requestVariant[0].bstrVal = itemStr;# U/ x1 q" o m' l
- J3 x N$ `2 n9 h, X' `' x0 p topicStr = SysAllocString((WCHAR *) L"system");& W# Z. T+ ~# d
VariantInit(&requestVariant[1]); # M4 C8 B7 ^+ U6 I5 M: q requestVariant[1].vt = VT_BSTR; 1 L" [+ A/ x, _ g) w- G& a- b requestVariant[1].bstrVal = topicStr; 1 o( r3 ]; C7 k, ]# C / I0 s! _4 C9 D2 t' e. y: H7 S// Set the DISPPARAMS structure that holds the variant. 4 e E6 p* Z3 k' |: s: d2 S2 @6 d. [2 n5 o; s- ]- X8 p1 V
dp2.rgvarg = requestVariant; 1 s& g z p8 E2 r3 ^ dp2.cArgs = 2;& \. E% A; e e
dp2.rgdispidNamedArgs = NULL; - Y1 a2 M& k$ l- d6 X dp2.cNamedArgs = 0; & o6 a4 s1 [/ |0 ~( `: Y, h) }0 W& u6 z" z8 O% ]: _3 B. ?
var.vt = VT_EMPTY; % Y6 l& r9 d' S- o& H( Q5 J$ ]: v# {; ?' A* N% @. }7 Y8 Z5 ]5 \/ T
// Call IDispatch::Invoke()) U$ s1 K, M$ ]4 K* ^
' b1 p* A0 `* A% c6 J2 u4 Z3 N: p hr = m_pDisp->Invoke(7 N5 C: U- v2 b# G
requestID,- r. d. w, B& l2 k% q
IID_NULL, 8 H) A+ k& L6 z4 p6 v7 Z6 T LOCALE_SYSTEM_DEFAULT, . z) }! i* ~1 G DISPATCH_METHOD,0 M& ^6 J3 F" H/ J9 z; a: D' {
&dp2, & b: q$ ^( ^- K- T/ R% x# G+ l &var,+ U8 A, ?6 f) r2 N
&ei,( d$ }% m5 T* D: m
&uiErr);% [0 a# L! _( `+ q
# X& ]5 A/ Z3 }$ t SysFreeString(topicStr);3 j9 ~ I2 m" F. v( A
SysFreeString(itemStr);8 T% \% J* \% m2 @1 b8 ~5 P' M
请问该程序是获得extend里面的哪个值? % v: m" P! j# Q- R) E: h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????