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:) v1 ^/ `2 k: G" p' x
Name = (WCHAR *) L"Poke"; 9 p! Q4 N9 B. C) S& q- j # s5 A+ _8 S$ Z6 Z) d# l hr = m_pDisp->GetIDsOfNames ( 8 ]6 H( H) t0 n Q IID_NULL, // reserved * b8 A+ J4 B- c( r &Name, // Array of names to get IDs for 7 I$ J" z9 T$ k* f2 c% o 1, // # of names in the array * @8 c, e* G# ^' f% T LOCALE_SYSTEM_DEFAULT, // System locale* W( ~& s9 n! D
&pokeID); // Array of IDs to fill on output 3 S" n9 V9 Y9 Q 3 c* j4 u' {2 d" @7 F if (hr)- C6 W% J/ G, W4 h+ H( ]3 W* q5 d
{ 2 S. P5 q( _* E4 J% | MessageBox ("Get Poke Unsuccessful");* z, G2 f9 V8 S6 x9 y* `
return; 8 r, O6 |3 C9 l: `2 \9 Z {; P } ' n" B# x5 j! D) ~% _: F C; ^0 l z% O9 Z5 E
/**************************传递数据给extend**************************************/ 8 i: |1 E2 A* W4 ^" x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 c" a$ }2 Y1 Z* i; Z ! _- e# t, @8 P* q$ U3 y# L$ O
valueStr = SysAllocString((WCHAR *) L"1232");) }5 b4 z- K; S5 j
VariantInit(&pokeVariant[0]); 0 h# X0 X3 H/ w; i$ @0 d
pokeVariant[0].vt = VT_BSTR; " x& e0 e9 d7 B1 Z' w1 ` S pokeVariant[0].bstrVal = valueStr; 4 Z8 g' |2 D! m1 N0 _ Y$ t3 t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # G0 I* D* p* b VariantInit(&pokeVariant[1]); ( l( J) p7 Q, w( h$ ?8 i: p
pokeVariant[1].vt = VT_BSTR; ( \0 P4 b' a. a0 N pokeVariant[1].bstrVal = itemStr; 8 q! ?9 k; e7 S4 @0 ^% _- I; J. X , Q u5 `) U/ _4 N! Y5 c" K7 k$ i topicStr = SysAllocString((WCHAR *) L"system"); $ h$ i0 d2 L4 b5 b' M6 s VariantInit(&pokeVariant[2]); 9 [: v6 G5 z z pokeVariant[2].vt = VT_BSTR; ; x- |8 n% A5 f7 Z2 Y pokeVariant[2].bstrVal = topicStr; + U% G3 I5 F9 a4 ~, u# o- |# S- y
// Set the DISPPARAMS structure that holds the variant. ( ]; f8 T% x5 b4 _2 z6 \1 c$ g6 w% e4 o8 `
dp.rgvarg = pokeVariant; ; ~$ k3 L1 I7 r& \* z. R+ _ dp.cArgs = 3;1 O; ^- j$ a: V- o
dp.rgdispidNamedArgs = NULL;/ m+ Y& I* z7 c8 _
dp.cNamedArgs = 0;2 k" v; Z1 p) Y# @0 @: n
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// Call IDispatch::Invoke()7 K9 }/ b. _ f* M- w8 M) V3 ]
' h& \6 c- T+ k5 r4 u; w6 P( t8 _0 x hr = m_pDisp->Invoke( ) C, P: v$ b$ r& H! v# d pokeID,: Z/ ~/ O9 T" f5 G
IID_NULL, , B" O2 R& s; O2 u# p# u5 \5 x* O# o LOCALE_SYSTEM_DEFAULT, 7 _; U9 [$ [4 l4 V. f5 h( D DISPATCH_METHOD, 2 S" k" A3 a# G Y ` &dp,# G7 s, R9 k# W
NULL, 1 J- S k% \" b( ]! C/ a# m' K) E &ei,8 Q, H, W( {: |- e4 L
&uiErr); 6 ~3 o+ y( C7 ~+ { B: d7 c7 i, {& M" @. X. l
SysFreeString(topicStr); ( V* C5 F5 ]: M0 P/ K; z& ? SysFreeString(itemStr); : U" q" v" D& C2 v% F; g SysFreeString(valueStr);5 E ?2 Q( d* `- ]6 y
8 i, ?3 I" X1 H6 p) v; w* S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???0 B, M6 f. A4 \/ P
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????* U t8 q+ X! c* X& m
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1 ?0 u1 j. N( K! T/ b7 @2.这是request的程序0 b* N% P, G# i
// Request a value from Extend 4 g. b/ X0 f' Y. \* }4 M// 5 w7 J! I4 y' E9 S3 S" A// Initialize the variant that will hold the BSTR. Set the variant's$ u2 o. v% {. \1 X
// type flag to indicate the fact that this variant holds a BSTR. Place the - W, m4 T$ ~1 ]/ K0 W// BSTR into the variant structure.* p1 P7 w% l4 D% X M" S u- C
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 u) n/ f" Z( U
# D K6 ?* j0 _% z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); @) X) u: c# H, N VariantInit(&requestVariant[0]); 4 P1 o! K. c. |% H: m
requestVariant[0].vt = VT_BSTR;, N O' v- I& q+ v7 ^3 s1 l
requestVariant[0].bstrVal = itemStr; * A; p% S$ W6 L9 W ( v4 |$ a+ H3 C6 [ topicStr = SysAllocString((WCHAR *) L"system");# W5 H% n& n! e( X; x
VariantInit(&requestVariant[1]); 0 o3 B/ ?$ m6 L2 K requestVariant[1].vt = VT_BSTR; / f; R. o! x9 H& c requestVariant[1].bstrVal = topicStr;' o9 k9 k2 X* w6 O. Y. y/ e
6 ?; T; G5 N* A$ x// Set the DISPPARAMS structure that holds the variant. 0 V7 ~4 M/ L% _! X+ z6 h1 p! }) K/ y+ Y; @: T5 ^5 ?& ^2 w
dp2.rgvarg = requestVariant;& r& D: x6 g6 L
dp2.cArgs = 2; 9 _+ d( x; |* @+ A$ g9 W dp2.rgdispidNamedArgs = NULL;+ c* Q) q* G q" w+ H
dp2.cNamedArgs = 0;' p7 `2 r0 a9 o( V3 t" E
3 [; G% S& D: V8 t var.vt = VT_EMPTY;- ]) l4 B/ W' j6 q! d
* Y1 x6 o, I7 ?* @& E9 y// Call IDispatch::Invoke()- y" c1 I; J$ H+ i4 N
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hr = m_pDisp->Invoke( 4 T( R; j+ ?0 |) x requestID, ; g$ ~! M: D0 P! a IID_NULL,9 u4 f& g; c6 e6 ?6 L, m
LOCALE_SYSTEM_DEFAULT,* E1 x. j+ j6 E# l
DISPATCH_METHOD,1 q1 o6 ^3 x# D+ V J
&dp2," F/ b, @% {7 I. d p: N6 ~
&var,* ~+ m- g7 F- {1 o6 W9 b
&ei,% R8 f5 l% P) c7 I- }
&uiErr);. e) F# O2 t; U3 K
+ L+ p" X8 Y* c
SysFreeString(topicStr);0 R; P- `7 X' a
SysFreeString(itemStr);7 l' A$ C, ~: L8 Z
请问该程序是获得extend里面的哪个值? $ r S5 P7 [2 f: K: i7 F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????