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: * l5 W- c0 M% R& }Name = (WCHAR *) L"Poke";- j# @. [$ e( O4 U
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hr = m_pDisp->GetIDsOfNames (9 ]; t5 f7 t3 {% r5 c$ H* {
IID_NULL, // reserved 5 H' J$ ]' M* H6 V &Name, // Array of names to get IDs for 6 o) U9 c- J( ]- D' d1 U 1, // # of names in the array * o9 W: {1 B7 _* K LOCALE_SYSTEM_DEFAULT, // System locale 2 R2 Q t# a6 @& J4 D1 Y$ K &pokeID); // Array of IDs to fill on output ; ~" M+ q" j0 F% w. | E3 g: j" ~; V. ^; V
if (hr)8 U' M- q/ M. _+ x
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MessageBox ("Get Poke Unsuccessful");% a: R z( W# t p! [7 }3 n
return;) C4 a( Z* B- m( e) _" u6 G
} $ E% U0 F) H6 L# R0 u ) x' w0 D5 C/ V' ]# q/**************************传递数据给extend**************************************/ 3 n5 c; g) g0 [: s" H" O pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& Y( a1 Y1 Q3 K& N
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valueStr = SysAllocString((WCHAR *) L"1232"); # I; z- Q% }7 e/ M. b- R VariantInit(&pokeVariant[0]); 4 r1 I( C. m, ? pokeVariant[0].vt = VT_BSTR;0 o6 Z3 s7 N" v& V( s( R# b0 [# {6 F
pokeVariant[0].bstrVal = valueStr;0 B$ o" T5 [2 |% O- a
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / W$ K. A* F' _; I c; ~ VariantInit(&pokeVariant[1]); & c4 Y2 d: K6 g% S+ L
pokeVariant[1].vt = VT_BSTR; # O( q$ o f- K& O- F% L% ] pokeVariant[1].bstrVal = itemStr; I M6 M2 }6 k6 J9 Z: g4 O / S) Y( Z1 o+ u& M topicStr = SysAllocString((WCHAR *) L"system"); - N+ ~5 r% y7 q [# @$ y VariantInit(&pokeVariant[2]); 4 u9 X3 }! j! ? N pokeVariant[2].vt = VT_BSTR;. z+ M. L8 j) r$ S& y; M' i( }. q# V( \8 f
pokeVariant[2].bstrVal = topicStr; 8 t* X0 `- W8 e4 y% i1 k' F9 i * V$ K/ O( |, o6 T( Y2 e3 v) d// Set the DISPPARAMS structure that holds the variant., v3 ]* @' [0 B4 C R! _
/ J; y" W& \4 D' G% a, s dp.rgvarg = pokeVariant;! ~: @# s/ X7 i- k; F
dp.cArgs = 3; & r+ n- o: B& i; V- E) g dp.rgdispidNamedArgs = NULL;% ~; Z+ L' _9 V; ] e
dp.cNamedArgs = 0;( c1 p r! C" }$ ~. ?+ R
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// Call IDispatch::Invoke() # j, Z: }+ r- M6 S" T) a8 g/ ]% n" p. R/ d
hr = m_pDisp->Invoke( : I4 r& X, R8 ?2 O) o pokeID, 6 \7 e4 {: y$ { IID_NULL, ( \: ^, n" a4 n4 k LOCALE_SYSTEM_DEFAULT,- U- I9 O0 P4 k
DISPATCH_METHOD, 3 u4 `- \8 z$ Q2 M1 m2 j; d &dp,: i7 k5 h& t- Y* o ?1 s* q
NULL, 7 [) r1 s( G( A! x &ei, u. M1 V& \ C n, Y &uiErr); : Z& |# s+ s r5 w% O; X0 u) x7 e; |
SysFreeString(topicStr);( @ ~7 f5 n! G, E/ d1 L
SysFreeString(itemStr); 7 C1 s* I% U8 x' c* n2 l4 F6 ] SysFreeString(valueStr); # f0 l' v# }% {* O+ h4 ?7 L5 q, \ / }7 ~" C3 h: k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??? ' F4 C& @0 d, f% ~1 ]8 E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???? ( ^) x$ g2 l( _9 V' O0 \- L; O. Z% B2 x& H4 B/ }' d% X. U% a* V
3 A t/ K3 p) P2.这是request的程序 / H) w( [, S9 q$ l, i// Request a value from Extend 9 I- S4 R$ |; g5 R" _/ u# Y( ]" m//& ^5 \2 _# d- O" k8 b f) i) z
// Initialize the variant that will hold the BSTR. Set the variant's , f- R3 C" O+ ^! S; h& C// type flag to indicate the fact that this variant holds a BSTR. Place the 8 t, ?9 e: B a. G8 u8 c// BSTR into the variant structure.+ X, e8 L/ i N+ [2 P; P' H# g. J
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* ~4 R5 f$ ^9 y
0 v o( B0 T, I7 v' w6 j: i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 p1 S( k4 _+ o# ?. J9 L: d VariantInit(&requestVariant[0]); 8 I. n( V8 {7 D- a+ f% e7 n* x requestVariant[0].vt = VT_BSTR; % E1 E. V* H; `( t9 q requestVariant[0].bstrVal = itemStr; , }$ l# u/ u1 z+ e1 `, }* h: S1 _$ S, P# V) ?0 Z, @
topicStr = SysAllocString((WCHAR *) L"system"); l4 N9 k% L) w* \' `8 M1 b VariantInit(&requestVariant[1]); , _$ W' v+ A2 a7 d/ F* d$ G
requestVariant[1].vt = VT_BSTR;. t, [0 K0 |! ?% f9 H) L
requestVariant[1].bstrVal = topicStr;/ Q) w' V2 M; U
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// Set the DISPPARAMS structure that holds the variant.9 P0 P" t ~1 Z B. C
$ l2 W# V- G$ a P' D; B2 [) b dp2.rgvarg = requestVariant;# A6 x8 q0 m! b% R" a
dp2.cArgs = 2; ]' X6 d0 J! @) P dp2.rgdispidNamedArgs = NULL;3 K2 G1 r) k1 E4 ^0 g
dp2.cNamedArgs = 0; - H( z' {/ j V0 z' d3 Y+ Z! O' { @; u4 c2 T v, L5 P
var.vt = VT_EMPTY; , n5 }$ t2 ?1 |9 t8 S - b( v2 @1 q0 M4 x" b& M// Call IDispatch::Invoke(); [9 G) q" k P- W! q" ~
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hr = m_pDisp->Invoke( ( T) r( ?/ {# [9 ~0 u requestID,4 A) K, c4 z5 n% e3 g( J0 n/ F* s% v
IID_NULL,7 F& T* D& ^# V b. x9 [
LOCALE_SYSTEM_DEFAULT, 9 H* f8 J" B3 S! U% K& U0 ]6 A DISPATCH_METHOD, ; ?, o0 {& O0 z$ `; a) Z &dp2, ! T: ^ h. u/ w &var, ) ~- v# |; g S$ `) U &ei, ! {) O/ X, J* `5 I &uiErr);* {0 l! _- l" T$ J* v4 ]
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SysFreeString(topicStr); 3 T5 T# Q; d, |% u; T; j1 S7 n4 d SysFreeString(itemStr); 5 z" S( d- m: q5 q9 ]0 P请问该程序是获得extend里面的哪个值? / K# }, U' l) A( \3 s. J/ k2 n7 I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????