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: S& z' a4 `8 C9 D
Name = (WCHAR *) L"Poke";) d- R/ l1 e7 I/ S' ?
( {* Y( x; n7 g! q hr = m_pDisp->GetIDsOfNames ( & S, ^2 q6 P- Y# [! s/ f7 D F IID_NULL, // reserved & ~2 X7 H4 p# Z- y9 @ &Name, // Array of names to get IDs for! U8 b1 I' m* M/ F: z3 z4 `5 f
1, // # of names in the array ) j/ \7 i# p1 V6 K+ y! {* B F LOCALE_SYSTEM_DEFAULT, // System locale P; y9 s& M! \ c+ g& F. m &pokeID); // Array of IDs to fill on output ! ?: {" L/ e" e( }0 v% `1 f9 M 0 V q% I8 L2 L
if (hr) 6 a: X) V0 y5 a {4 ?/ s5 F; p7 X- @# V$ t) R
MessageBox ("Get Poke Unsuccessful"); ( F9 G p5 y( l7 C- ~ return;2 J( q) K$ u4 z* G2 S
} " }6 N7 P' H9 p6 A5 q9 [# u* K8 `1 G+ Y/ `' D) p# ?4 h7 n: E8 Z
/**************************传递数据给extend**************************************/ + k+ J2 `% u0 |; `0 L! G$ \! Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 e5 Q3 S) [8 e0 k' N4 S7 d 9 y! G# f8 |4 d' a7 s/ v7 T( K valueStr = SysAllocString((WCHAR *) L"1232");+ h, Z/ d" m$ y& m: b6 a4 O5 B
VariantInit(&pokeVariant[0]); ! ^5 {5 e0 h$ w6 ]' i pokeVariant[0].vt = VT_BSTR; - u2 f, e& a; [% b pokeVariant[0].bstrVal = valueStr;3 F# y1 T/ Y. d& e" v3 A
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ' }. h- j: [0 e9 L4 e. j2 x VariantInit(&pokeVariant[1]); ! f7 C5 z F2 |+ O" X/ l7 y pokeVariant[1].vt = VT_BSTR;5 m$ ~1 f7 w1 @0 g; t2 [
pokeVariant[1].bstrVal = itemStr; 6 v" ^' b8 Y5 w- k# r5 `7 T2 T7 H4 G3 Z' ~
topicStr = SysAllocString((WCHAR *) L"system"); 1 v' p* x/ P1 ?) j0 f K! Q" ` VariantInit(&pokeVariant[2]); * V3 `( Y5 L9 f' h* ? pokeVariant[2].vt = VT_BSTR; ( l* j, j, {( t1 i pokeVariant[2].bstrVal = topicStr;: ?% U) y( x1 \* }
) X8 @8 C! a- T) K' t7 M6 Y// Set the DISPPARAMS structure that holds the variant./ j6 r" a3 f" @' `# ^! i4 G6 [4 j
1 a; f% U7 a7 A, Y dp.rgvarg = pokeVariant; ; w( _$ X. p e6 D$ p dp.cArgs = 3;! a. u+ I2 z$ {0 p" I% q& R. W
dp.rgdispidNamedArgs = NULL;/ b2 [6 W6 d9 X3 o8 R
dp.cNamedArgs = 0; / G& ~2 J" ^5 Q, f& R; I8 e4 A; C0 I: R9 h
// Call IDispatch::Invoke() & ]- l8 @# F# W3 `1 M # d2 n0 X4 Z! A' k4 f, r hr = m_pDisp->Invoke(5 o7 o t* h+ u9 _$ S% k0 q
pokeID,' X; [( K$ u( p- W2 c: c
IID_NULL,4 c+ O0 e% f3 t2 I' H r
LOCALE_SYSTEM_DEFAULT,4 A7 J8 o8 p% ^
DISPATCH_METHOD, 9 s/ o- ]" p! X( k &dp,/ S3 v9 m' k Q3 v( z- H
NULL, ; b" j0 d$ d O9 N& n+ Q &ei, " o) v% e0 w# b( }/ Y x &uiErr);; _7 W0 m9 Z" \! W
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SysFreeString(topicStr);/ l; T" K# c) T# ]5 P1 n2 U6 U
SysFreeString(itemStr);" U! x. W: p( Q" \2 ?, C# k& u B
SysFreeString(valueStr);& }( K% y. M* n( ?1 W
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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???" K( z" G+ R) Q/ 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???? 1 U' q, P% O8 m& O2 k, U, B0 ^/ l$ U3 u' x
& e9 G! A( Z8 @5 \0 C k2.这是request的程序5 [7 F* I( F* d! E7 T
// Request a value from Extend 4 v* V% }6 g; B7 O/ ]. Y// % i. W; ]9 j+ T. V0 b# N; ^// Initialize the variant that will hold the BSTR. Set the variant's7 u. E- v, D7 p% F/ `+ v' R+ l }
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 o/ e( I# P- S" Z. q# s// BSTR into the variant structure. . O, U, L! Z _# ~. ~9 B - S! M9 `+ z, b- T; J" I: u requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 {2 Q a0 f+ q/ L0 J: d
/ u0 D- G# q. L. s; m2 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ r7 w- O* o8 Y* X8 e
VariantInit(&requestVariant[0]); 4 j5 B9 y( r, m
requestVariant[0].vt = VT_BSTR;2 K; }+ c; Y+ h: B* X
requestVariant[0].bstrVal = itemStr;# K+ K$ d* e2 g
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topicStr = SysAllocString((WCHAR *) L"system");" i* Y3 c4 q- x, E3 M& T5 T
VariantInit(&requestVariant[1]); + ~. O9 T! Y3 W2 h0 q) e8 b
requestVariant[1].vt = VT_BSTR; 4 t' E) U: O# S7 p requestVariant[1].bstrVal = topicStr; 1 I; _) ^ x- U! D. F/ r; Z4 P/ e$ k 5 I- E% |& F8 y* H) O// Set the DISPPARAMS structure that holds the variant. 1 `( S1 c+ u l, ?- y ! h \: r& k3 s+ [- f7 e2 b dp2.rgvarg = requestVariant;* T, S/ u) k/ [$ i
dp2.cArgs = 2; ' K9 T0 Q2 x2 r5 X dp2.rgdispidNamedArgs = NULL;( z" _3 r" P' M$ v( c% q) c; p
dp2.cNamedArgs = 0; 3 v* `9 U# i" |: y; I9 ~, Y( ` . y; X& H& o) M" a+ Y1 e var.vt = VT_EMPTY; \6 H9 W# `/ S+ F9 c & o# E$ D9 n* j9 I+ m7 W// Call IDispatch::Invoke() 2 g( \, @' l* Q0 y3 L" M7 {/ x+ C2 }% c! I1 b/ O7 G
hr = m_pDisp->Invoke(8 K; X8 D ^) i6 O' T' o
requestID,/ q0 ?4 L5 Y" p4 H
IID_NULL, . h: |1 g9 }1 u2 M9 [! S% K. L LOCALE_SYSTEM_DEFAULT, 1 v8 o$ q5 \5 y' z/ E; ], { DISPATCH_METHOD, * K+ l0 Y9 u) P &dp2, $ r( @) h8 O& ^+ ?, `/ K7 _/ S &var,$ K6 A" M, [2 N* b
&ei, / e& @' X9 K* y4 T; w, V) a* z &uiErr); % c( I8 `; W( N9 Q8 R. z3 Q5 m. {5 j& E2 w
SysFreeString(topicStr);8 I$ O, `; L: t0 @' F
SysFreeString(itemStr); B6 p) K3 a9 K2 U2 i& S4 G
请问该程序是获得extend里面的哪个值? 1 \1 t' _1 ?7 u; ?/ I1 J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????