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:- G' u1 `- r0 u6 `, P5 B. Z
Name = (WCHAR *) L"Poke"; ) O- e) X# E& R1 X; O% _0 s7 q- Q. M, c + n6 L) z; f* B hr = m_pDisp->GetIDsOfNames ( / x/ t- P7 D" I0 s IID_NULL, // reserved / h; B6 p9 x, ]% v) e &Name, // Array of names to get IDs for . F% c! A; z0 M 1, // # of names in the array3 u& \" a% Y$ S$ f9 i- y
LOCALE_SYSTEM_DEFAULT, // System locale % w6 K4 ^% |" o+ Q/ z2 k &pokeID); // Array of IDs to fill on output; W5 d2 ] W8 f- V& V2 j
]6 T! Z2 W" F if (hr) 3 v4 T. [1 L+ d6 M {! F% w }" o$ [1 r8 I" Z
MessageBox ("Get Poke Unsuccessful");1 ]0 X' N2 b/ I! r3 |
return;, k, {3 {9 X+ A C+ L5 s
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/**************************传递数据给extend**************************************// ~6 [9 O c, y6 r. S3 U! Z O5 a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) a4 z" U; L( f' U$ V6 I D& {# a
$ S9 F' K( b7 \* ~4 | valueStr = SysAllocString((WCHAR *) L"1232"); , }4 R1 B1 B' k! d0 M5 s VariantInit(&pokeVariant[0]); 1 f. a" M' D: ^) C% `
pokeVariant[0].vt = VT_BSTR;; O( Z2 J+ W \
pokeVariant[0].bstrVal = valueStr; 6 ^ [5 ?6 v$ J% e9 G# M- U) f8 [, @9 t! P$ r
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 l4 Q5 y# H. _
VariantInit(&pokeVariant[1]); / |: B6 A C S( d* q3 D$ {5 c
pokeVariant[1].vt = VT_BSTR;: @ K& T: [2 m# n9 |7 w
pokeVariant[1].bstrVal = itemStr; & y3 l" e/ o9 A" O h! y4 m& c1 l9 F: `. i
topicStr = SysAllocString((WCHAR *) L"system"); $ M% s" G7 B8 O) G+ {5 U& A VariantInit(&pokeVariant[2]); $ Z1 e. L, q% N3 v i
pokeVariant[2].vt = VT_BSTR;$ M" k8 d+ r1 \: X1 A
pokeVariant[2].bstrVal = topicStr;1 i) V0 N: k0 s( h. x x( `9 S
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// Set the DISPPARAMS structure that holds the variant. 0 M; P6 Z# d8 G8 U ( _' `, f7 U) I2 ]2 ]' P dp.rgvarg = pokeVariant;& k0 i6 f( w2 C* j3 {$ C3 p! s
dp.cArgs = 3;% V7 F. O' F' s! ?+ y) u
dp.rgdispidNamedArgs = NULL; 2 @0 N, v6 g* J; D5 z' I! E dp.cNamedArgs = 0;' j5 `3 M* u7 x8 V8 y+ k3 i
4 L* X7 e/ N6 f I- f J& ^// Call IDispatch::Invoke() ; @+ v1 r O; m" l( I. |+ D6 }# H" J3 f/ T, n# s. H
hr = m_pDisp->Invoke( 1 d( a+ }& Z+ w$ P$ f pokeID, 4 K7 ]+ W6 h" F) _ IID_NULL, 3 e2 g# ]6 C' h. r% h9 Y+ r% S& ` LOCALE_SYSTEM_DEFAULT, / d# ]0 b, V% e2 y DISPATCH_METHOD, n; \1 M. @2 ?9 a" t6 f7 e l &dp, 8 w* e1 f) f4 h y# A, `1 \6 l8 v NULL,9 I! q' v1 ~6 G# Q/ j& D3 P/ B1 f5 u
&ei, " m* w6 z P" j1 J# e &uiErr);% [# N5 K8 Z+ S6 M/ x' c1 A# c( c
" j1 r3 P. X- u2 ]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???* P1 O7 Z: V; i+ v* J4 W/ r. g' b
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 m( ?5 _7 U! h3 a' @4 I
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2 A J2 f8 z* x2.这是request的程序 ( q! z. ]% R4 d; S% e// Request a value from Extend: l; J$ ]- r' e
//7 c0 j' G$ h+ _, i; ~
// Initialize the variant that will hold the BSTR. Set the variant's# C* n) i5 W; J) G8 d/ A7 A/ b l
// type flag to indicate the fact that this variant holds a BSTR. Place the' I; Z$ J5 W; y& W9 y6 e
// BSTR into the variant structure.8 l3 W9 v8 ~' E8 f- a9 `
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* u9 N7 o8 ]9 J/ H