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: ; i6 }' z9 p. k, l' N9 X5 dName = (WCHAR *) L"Poke";- ?2 Y- I. A P; h' @5 X5 S/ g# H
$ ~( m. I! N) }$ q hr = m_pDisp->GetIDsOfNames (2 X* F. y+ B. }' X8 |8 A# `' Q0 d
IID_NULL, // reserved3 R( \( W" ]- I) Y. H. z
&Name, // Array of names to get IDs for5 G* J( y' k" p J
1, // # of names in the array 6 @9 h) o: g8 ?8 w LOCALE_SYSTEM_DEFAULT, // System locale , S, X; W6 `4 p. h) n- `; R5 F &pokeID); // Array of IDs to fill on output2 {6 d2 Z S; w! M0 N$ d2 c
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if (hr)( q" U+ y/ W8 x- r
{ / @7 ?2 }, b7 ~! P1 q MessageBox ("Get Poke Unsuccessful"); ' v7 E) Y1 I7 d3 ~! N' S return;& N; v6 j$ f; T$ p
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! Z2 d$ e5 N+ _* Z0 H H* m: o/**************************传递数据给extend**************************************/ * ~. V+ p6 ~9 Y+ K' i3 @5 \5 N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 M) }" N7 R5 l* M
: e% u2 c8 @4 _4 _: [8 l5 k: f' j valueStr = SysAllocString((WCHAR *) L"1232"); ( W) d! w ?2 a, | VariantInit(&pokeVariant[0]); 0 j" s% Z5 g) \: r! f pokeVariant[0].vt = VT_BSTR; ( |# |% n- e+ t B* z% y" e pokeVariant[0].bstrVal = valueStr;9 a2 z8 u/ ?# z* y; b
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 m' t/ q5 L2 m& e+ Q9 i* A' i- W VariantInit(&pokeVariant[1]); 8 g* i9 K8 \% y9 L
pokeVariant[1].vt = VT_BSTR; 6 J5 r+ k1 G8 q. x5 V pokeVariant[1].bstrVal = itemStr;: B/ X) K8 G$ i" @9 B
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topicStr = SysAllocString((WCHAR *) L"system");/ U/ b8 N6 h1 `' R3 J
VariantInit(&pokeVariant[2]); ~% Y0 q. K+ S: U- c$ s
pokeVariant[2].vt = VT_BSTR; 8 F7 b3 s# \. Z+ h4 z' o" I% V8 L pokeVariant[2].bstrVal = topicStr;8 n4 x# I* E" T& K; G( z
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// Set the DISPPARAMS structure that holds the variant. & Q- U! T# z* s: ?, Q9 K$ r' x N1 y( m2 Q5 g% [/ I
dp.rgvarg = pokeVariant;. K$ w% {9 t. b. s5 R$ F
dp.cArgs = 3; ) L8 x0 x1 j6 ]9 v dp.rgdispidNamedArgs = NULL;! C& x+ d N' R
dp.cNamedArgs = 0; # P) w; k* M( o5 o6 k( e! n! n8 q- z8 V" K
// Call IDispatch::Invoke() : N8 p1 O4 g: L# a" M" U , T8 e4 L2 p3 D! ^ hr = m_pDisp->Invoke(- t, ? C3 X8 c* t% y
pokeID,# y& e/ U2 ~' X2 _5 h6 ^/ d; c
IID_NULL,, J a0 u7 n6 ~+ e* ?5 w
LOCALE_SYSTEM_DEFAULT, 7 r/ Z0 u7 P9 V4 \/ F! ~8 D DISPATCH_METHOD, / c4 t9 h$ z7 w4 J &dp, + J [0 Y, H8 Q, l9 | NULL,7 o- n6 D, W R$ u( `; v
&ei,& ~" t7 r! ]/ ]0 I! l
&uiErr);; n7 R( l. V: e0 N$ m J
{$ @6 F+ C1 i. p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??? % M3 u7 ?5 u' `. r0 Z8 z6 z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???? , [5 q. r( J1 A7 Y& F$ b3 f" E 2 r$ a! G0 H' F' ^$ u( ` 6 l, S) V; [9 n$ C2.这是request的程序" L ]: m6 u: r5 j4 V4 j8 v
// Request a value from Extend " Z5 n" ^$ x9 r1 X* R// " q9 Q8 C* t: a: J. H+ B// Initialize the variant that will hold the BSTR. Set the variant's8 _! J, B) ^6 \- W
// type flag to indicate the fact that this variant holds a BSTR. Place the 0 m7 v# |8 D9 w4 T- {- y7 I |4 S// BSTR into the variant structure.7 t# p* l: g1 a) Z' L
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ k8 u# H$ I! ^5 c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& c2 A: _1 o8 I4 n
VariantInit(&requestVariant[0]); 5 t2 e [1 H% n8 }; |9 E. L* \
requestVariant[0].vt = VT_BSTR;( ]" _3 Y' h6 @! A
requestVariant[0].bstrVal = itemStr;2 t M5 A$ L! r0 C* F0 Z8 F7 n
$ ]* }6 [1 P/ U' p topicStr = SysAllocString((WCHAR *) L"system"); & d, d0 n9 W& z* [* |9 T4 p VariantInit(&requestVariant[1]); 5 J) r0 E" M: X' z1 j requestVariant[1].vt = VT_BSTR;# v# |1 b4 Q. }% k4 A7 D3 T& ?8 s
requestVariant[1].bstrVal = topicStr; 7 P( U+ W$ H2 R # c( u; u' P; x) |$ E2 Q- M// Set the DISPPARAMS structure that holds the variant. 1 `# Z! E% h" h" Z: n 3 a! }- m8 g" i dp2.rgvarg = requestVariant; H- ]. R9 A" R0 J5 Z7 }! V9 ]/ c
dp2.cArgs = 2; ) N6 A# u7 F* d* ]2 B dp2.rgdispidNamedArgs = NULL; , }6 ?4 m. b, b* W' ^ dp2.cNamedArgs = 0; 4 `, L0 `' U- m* |' N + d" `. y {# C3 X/ z# A6 m var.vt = VT_EMPTY; ( G- _& z+ y" N7 Y+ y8 P 1 e( ]: L: s! r// Call IDispatch::Invoke()+ Z/ M# s! }( y# Z
% g8 d* R) C2 Z/ B hr = m_pDisp->Invoke( ( S( V u& B; a% d/ Z ~ requestID, $ a8 B" W# k5 Q' L# B- _ IID_NULL,% N2 Y5 ?( _5 Z' ~' _* v) z
LOCALE_SYSTEM_DEFAULT,$ x2 F" b* `! h- T& E" n
DISPATCH_METHOD, & ?' [* G P# @. G. u &dp2,9 X5 u% w9 q! j$ {4 u+ ]
&var, * S: D( k. j' H& R$ d &ei, ( i5 w" Q) a+ G0 @$ g. s2 @ &uiErr); 7 e' \1 W; m" k9 g$ i" L. k. }/ b6 _* g6 t/ E8 ?
SysFreeString(topicStr); 5 t: K- ]. ^9 h* k+ Z SysFreeString(itemStr); ! b' H! |8 _, M4 E! i# [, ?9 S# Q请问该程序是获得extend里面的哪个值? , Z9 _& Q7 k; q8 f. L" g% q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????