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 c% ~- x" M8 u
Name = (WCHAR *) L"Poke"; & g5 e, ]4 j% x 2 {4 j x; a% N6 Q: J& t* _6 S
hr = m_pDisp->GetIDsOfNames ( , N; b) C3 S; w0 h IID_NULL, // reserved # Q' n/ {) f) w# O &Name, // Array of names to get IDs for ) R5 S, V# h4 w! j: ^ 1, // # of names in the array , A/ r8 M" M0 s1 Z$ n LOCALE_SYSTEM_DEFAULT, // System locale 0 c y' t0 Z3 P5 J% Q& \: ` &pokeID); // Array of IDs to fill on output: O7 R# u- G8 ^2 F
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if (hr) ' P! T6 o. N8 Z. f {5 ~; X/ B. n0 i
MessageBox ("Get Poke Unsuccessful");) v0 {9 r0 \; r5 B: I9 u. o
return;" R6 V. {3 j, T k/ {
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/**************************传递数据给extend**************************************/" A7 v- b/ T6 D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 a: F% i$ F1 r) p" X2 n! M5 Y
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valueStr = SysAllocString((WCHAR *) L"1232"); / q$ L* f: e1 d& K VariantInit(&pokeVariant[0]); 5 m/ M4 N0 L8 p! \& R1 k
pokeVariant[0].vt = VT_BSTR;( O/ P: a% l B6 Q1 ]+ v
pokeVariant[0].bstrVal = valueStr;, [( u0 c9 D3 g. h. N$ h! K
& M: C; E; E0 P6 G8 i% X' @2 W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) @: u+ q. Z0 ~3 A
VariantInit(&pokeVariant[1]); 5 F, {4 F+ v0 u4 E4 C pokeVariant[1].vt = VT_BSTR;$ {" y9 S$ v: ~2 F. Y/ G
pokeVariant[1].bstrVal = itemStr;! P5 V, ^3 ~- ]$ e
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topicStr = SysAllocString((WCHAR *) L"system"); ( _* m4 C# c5 D VariantInit(&pokeVariant[2]); 9 P% P$ ?( f; \0 z' T
pokeVariant[2].vt = VT_BSTR; 5 [/ o8 y+ F. F8 Q6 r pokeVariant[2].bstrVal = topicStr; U4 q: I9 b x0 ?( j
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// Set the DISPPARAMS structure that holds the variant. ( U6 ?; s. ~: g( O' J! [" t+ Z; N
dp.rgvarg = pokeVariant; 6 P! [: d2 l$ d4 o- a! G dp.cArgs = 3; : ^8 |4 K* x+ t( V1 Z dp.rgdispidNamedArgs = NULL;+ t3 t+ X$ `6 I' }- D; ^1 K2 i* e
dp.cNamedArgs = 0;7 D1 `, H: f/ C. h" F
- L# h3 n! w* y7 r// Call IDispatch::Invoke() : K0 v+ d- \% Q$ ? # ?6 \. U9 u3 N0 h! E hr = m_pDisp->Invoke(* }9 M( a u+ o- E: v: i% l' d' u
pokeID, 4 J+ \- i" g' A' P5 r0 D' x+ B8 k$ R IID_NULL, 2 L4 [! M! C/ t3 Q LOCALE_SYSTEM_DEFAULT,6 L& I: c( l7 r* H
DISPATCH_METHOD,! E1 |' J2 ^9 w( J
&dp,3 I: \1 Y M! b8 C
NULL,! e, b! r z% K
&ei,( |, l$ f# ]/ Y+ c5 }
&uiErr);) N. z$ V: g C
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SysFreeString(topicStr); . c% E" d ?/ O; }% J4 V SysFreeString(itemStr); - @$ a) P- y9 w" J3 d. v+ X SysFreeString(valueStr);' ]3 C+ R5 `' r8 }- V$ ^9 B
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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???/ F9 S/ y! i" a7 A, [% U- R
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????( z# a% x+ A' i" @/ Y4 {
7 M$ F' n& h5 G( \! @ 3 s: E2 S7 ^( [0 {, o2.这是request的程序9 }$ b4 m! |9 H' H* b/ k1 u- p
// Request a value from Extend4 v& p( f: Y5 N- x! y
// 7 T& `9 y- S8 p/ K5 j3 W// Initialize the variant that will hold the BSTR. Set the variant's 8 {8 {/ F( f% r& a- Z// type flag to indicate the fact that this variant holds a BSTR. Place the 8 y5 V! ~2 t( c// BSTR into the variant structure. 2 J( ^5 n, D; v! ]4 X. k! l5 ^" D' _6 |7 `
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 L6 w4 Q g" {% X* B3 U2 G; S# y8 q
5 D8 c/ Y4 D3 n5 E+ N& B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( q% r9 P' M) j# b VariantInit(&requestVariant[0]); 6 @, A. T% E" l. P
requestVariant[0].vt = VT_BSTR; . M& @4 s7 a; V+ d' Y1 S requestVariant[0].bstrVal = itemStr; # @, U+ A }' J4 I9 e3 H+ a1 e7 ~9 `' R! i, j/ j7 }3 a
topicStr = SysAllocString((WCHAR *) L"system"); 4 w$ g1 P, L8 C: E VariantInit(&requestVariant[1]); 6 }" K1 F1 T- b requestVariant[1].vt = VT_BSTR;. K0 G7 h$ C7 I9 @1 k7 z
requestVariant[1].bstrVal = topicStr;: l: u% S0 R9 T2 ] h5 m8 p2 F, i
( }' y. ]& k7 _, i& X; [& D// Set the DISPPARAMS structure that holds the variant.9 D% X& w$ y# @3 S5 r
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dp2.rgvarg = requestVariant;0 b9 s( q& L. k5 `1 \& _* h1 J
dp2.cArgs = 2; + R! s; l" A1 I3 k, ` dp2.rgdispidNamedArgs = NULL;3 j' k3 i% t `) G
dp2.cNamedArgs = 0;" c7 i/ b! Z) z' G/ x( v
! ?5 T |2 ?2 Y3 E' ~2 z var.vt = VT_EMPTY; 7 l0 A E/ F5 l1 q$ x# R7 U. r5 T1 z2 w7 f6 I
// Call IDispatch::Invoke() ! M; w9 @) ^% U, ]9 V( W+ V/ e+ b* w. \4 K0 i
hr = m_pDisp->Invoke(" E) ~# U2 y4 j8 S2 W7 p
requestID, ) m: Y d$ P( v IID_NULL,3 o6 d. P8 z/ I. i
LOCALE_SYSTEM_DEFAULT, p# L% t" Q% Z* \ DISPATCH_METHOD, ; R3 k% w( m; C2 ? &dp2, 3 o6 W( O/ A7 k- g &var, . J" k# S. n [4 K% ^9 V8 t( h &ei, 3 y3 u7 y! X0 e+ Y& l &uiErr);2 t) R) A, m0 b& s; ]
5 u! ^5 C6 i, C1 @* g SysFreeString(topicStr); # c4 d! X3 d1 J& W* x1 E: y, f SysFreeString(itemStr);+ l( q% z4 L. I; a( G* A2 T; |% x% |
请问该程序是获得extend里面的哪个值?- w, r4 }; U4 J4 @ y
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????