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:! P7 ]* P0 m) y3 q1 R7 V6 B% G8 V
Name = (WCHAR *) L"Poke";7 o2 @1 z. c, |, r
/ Q8 a# n# b" w) Z hr = m_pDisp->GetIDsOfNames ( 9 @. `. m% O; c+ f IID_NULL, // reserved ( Q) T5 }2 A% P% m+ i &Name, // Array of names to get IDs for 3 N; K$ q% l- F$ V( q8 [/ t 1, // # of names in the array' l7 m9 o4 \( i4 ^+ b3 u. M
LOCALE_SYSTEM_DEFAULT, // System locale 9 q" g: u% j: |4 r6 ~" R3 @ &pokeID); // Array of IDs to fill on output * a' X- N* q& J% ^6 r ' w2 |) T- i1 t: K; F% Z& J
if (hr)% ^+ O! z3 |. D; `
{ : K6 @4 O9 M$ {5 p MessageBox ("Get Poke Unsuccessful"); 5 [8 O$ `! }; k return; 6 \( Q$ l9 ?7 J } * O" o; k% c7 i" b. Y- i% E+ G3 E% v& q5 Q
/**************************传递数据给extend**************************************/9 ]% t, n9 w, [' R( |0 v
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / N- C, s5 O: x/ b/ m4 }) K / b2 F7 G& p: A* f1 k7 t# q/ p
valueStr = SysAllocString((WCHAR *) L"1232"); % W: G6 D1 s% s; H' R+ o VariantInit(&pokeVariant[0]); ; `- h# y+ J% J9 X$ x
pokeVariant[0].vt = VT_BSTR; 0 X) l: K1 ]2 o pokeVariant[0].bstrVal = valueStr; 2 Q% J# H( i h/ b ( x4 j4 G+ [ ]) Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. e3 V9 \' M% Q% Z0 r) S. Z9 H
VariantInit(&pokeVariant[1]); 2 A9 T6 y# b' a9 M5 I
pokeVariant[1].vt = VT_BSTR; ( P8 Y* V8 Z: C3 O1 I( X pokeVariant[1].bstrVal = itemStr; 9 J$ O! j" L& {3 f) I; C6 H' K2 q3 ^, x, `( Z
topicStr = SysAllocString((WCHAR *) L"system");8 Q* f- ?, p( o, k6 u# v$ x
VariantInit(&pokeVariant[2]); & m8 m# f; W4 Y" m- F' u5 F
pokeVariant[2].vt = VT_BSTR;2 u* i/ ~7 Y8 q6 P g* g
pokeVariant[2].bstrVal = topicStr; 6 C8 H* |/ ?( f H. H) y$ c/ w) o M; ]8 O, ?1 T! [
// Set the DISPPARAMS structure that holds the variant. U' d, a, S- h# U + @. }* k4 a; y, u4 ] dp.rgvarg = pokeVariant; 6 @9 Z4 q2 C. d: w3 p/ m dp.cArgs = 3; $ ?/ \6 O% n3 ? [ dp.rgdispidNamedArgs = NULL; * S3 T( x9 k1 Q8 F dp.cNamedArgs = 0; 6 t* P8 n: `0 B / k5 e: T8 w4 y+ ^, ^# M, Z9 i) ]// Call IDispatch::Invoke()+ u u+ X$ p! C8 h' g# m8 { z
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hr = m_pDisp->Invoke( 3 L" x' R, o5 a0 b+ ]- [ pokeID," q. d- j! b1 a: `- a( v( u% H
IID_NULL,: S' j% S% ?3 c/ J) Q1 k
LOCALE_SYSTEM_DEFAULT, ) D5 t; }* q# B E' p DISPATCH_METHOD, 5 l; `8 r/ [8 q0 n6 K' a6 [# {. a( _$ E &dp, * W6 s& E, V5 a7 b: R4 f NULL, $ T+ d# c9 N. e# G &ei, Y5 p7 s/ s% F/ V. u9 d3 |3 P3 Z7 E3 _
&uiErr);& e. i, |5 l% R4 j9 W
# o9 I& D* E/ Z/ q& I SysFreeString(topicStr);# m# e0 ~2 X. T, ~- ^! g, J# y
SysFreeString(itemStr);" ], Q! R' M7 I2 x
SysFreeString(valueStr); 3 w- q! _( h! y7 O7 P Z7 v$ o8 v9 U6 S) x) m R, i
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??? / A# x1 w7 p$ M1 I& _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????* }# {: q) R4 {( j3 L6 D
2 Q3 P# r, k' H3 V " v0 O0 g$ _" G( [7 f2.这是request的程序 C3 E* I7 H' |4 B: A// Request a value from Extend 7 r& L, \5 r, E4 v// " V' p+ o) y+ K, A, M9 o( U, b// Initialize the variant that will hold the BSTR. Set the variant's ( d \: t* b3 B) U! C// type flag to indicate the fact that this variant holds a BSTR. Place the 6 |3 Q. n/ c/ F// BSTR into the variant structure.% D, a) Q! [8 e* z7 b; ~5 u/ H5 f
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); * p8 Z2 ?3 c- m$ H 8 f* ]- k, O) S" c& Y8 m
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / z: |* T. ^1 N( X- r9 f VariantInit(&requestVariant[0]); 3 [' z# b0 t: }2 N) C, U
requestVariant[0].vt = VT_BSTR; % l3 X; p R4 i! ^$ K- f3 A requestVariant[0].bstrVal = itemStr; ) w3 o+ U7 L- n2 z& q7 \9 }. h5 q! {* T
topicStr = SysAllocString((WCHAR *) L"system"); * q) y1 l+ h4 S VariantInit(&requestVariant[1]); , j+ t% B% p) e$ c3 q requestVariant[1].vt = VT_BSTR;" I4 [: ^ w2 \% ~
requestVariant[1].bstrVal = topicStr; - n$ w1 t$ B0 W6 N9 P, `: z" b/ H% `" k1 L0 J; G( |8 O
// Set the DISPPARAMS structure that holds the variant.; `! w! K( Q- D# N