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:' w7 n$ P$ w: B! T0 D! m
Name = (WCHAR *) L"Poke";7 r7 `5 }4 w4 w1 Q( ?- G$ V
: t4 }- A! _0 I5 a" g5 [ P) n hr = m_pDisp->GetIDsOfNames (1 [/ A5 y' ^8 }
IID_NULL, // reserved* _* I; u' ]" {& U) E' u$ \
&Name, // Array of names to get IDs for 1 ~2 @; J8 Y3 M8 s/ H A 1, // # of names in the array6 n6 f7 v9 i" \0 R$ J) x
LOCALE_SYSTEM_DEFAULT, // System locale4 z+ M0 v' V0 z4 @2 e
&pokeID); // Array of IDs to fill on output6 ?/ o- W- O" N7 [5 R
& z- E" M) l T& K% i if (hr)! x( T/ m3 H9 R5 S% V8 ] [* P+ Y- b
{ " k" v8 S ~) @7 q MessageBox ("Get Poke Unsuccessful");8 N, o V [$ M" C; K1 {
return; % ]/ i6 L ?0 f" A2 s- h1 w } 8 i ^2 G% X" H$ U, z9 w+ p& Q. a5 { 2 V- I8 X+ n% [* A/ k V7 ^6 l, L/**************************传递数据给extend**************************************/7 m% n* z4 g6 |! \0 v" w) _4 h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) A7 h+ q% N5 L q8 z* g) \
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valueStr = SysAllocString((WCHAR *) L"1232"); 9 E9 g1 g: k8 z1 F' S( U3 V VariantInit(&pokeVariant[0]); , B6 W! \' E* N B' V( A
pokeVariant[0].vt = VT_BSTR;1 u( k, B2 _, M- ?# R
pokeVariant[0].bstrVal = valueStr;- H3 A5 e) x# I6 i5 V1 V) R
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 `4 @+ I! S; M3 \1 q
VariantInit(&pokeVariant[1]); " e/ k5 F( X; b" }2 K pokeVariant[1].vt = VT_BSTR;" c- ^- p9 u/ O0 e' H
pokeVariant[1].bstrVal = itemStr;- ]/ j4 ?8 O8 [4 V, ?& M H. u& |7 `
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topicStr = SysAllocString((WCHAR *) L"system"); 9 @( [) U# X& n+ L VariantInit(&pokeVariant[2]); 4 d/ J4 c( z+ L pokeVariant[2].vt = VT_BSTR; . F/ K# h" `3 K( A# I4 m pokeVariant[2].bstrVal = topicStr; $ M) y L3 f) r& p0 M7 ^4 F5 w$ u, q# O+ y
// Set the DISPPARAMS structure that holds the variant. + s* s8 n0 e, u* k) ~! v5 y. }: S% J
dp.rgvarg = pokeVariant; 2 B7 ^' g$ ?8 a, O) y dp.cArgs = 3;3 V5 U' P. {5 w' i7 Y# }' w" X
dp.rgdispidNamedArgs = NULL; 6 w2 U0 J6 B9 q dp.cNamedArgs = 0;( k, O6 c+ l! e3 Z( l/ R0 S
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// Call IDispatch::Invoke(), f' _5 b' Z! h' X
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hr = m_pDisp->Invoke(# `6 W- ~! m: F) D
pokeID, ( l, b# W1 [; t% Q9 h IID_NULL, 7 W, N' T# g! d2 c/ X/ ` LOCALE_SYSTEM_DEFAULT, - D1 c' u u; X$ {1 V+ `2 X DISPATCH_METHOD, 5 G; y% Y' T7 i' [, ]6 p &dp,: j9 U2 [, D) x( @
NULL, 4 P- d) h+ X) } &ei," m, Q& Y2 C% q3 B/ Z
&uiErr); 1 ]8 X5 }$ d' ]" P% A ) z+ |8 V/ r% w# Z SysFreeString(topicStr); . |; v2 e7 v$ u. O$ i3 W# |3 b SysFreeString(itemStr); * Q4 O" p6 x: W. t( j SysFreeString(valueStr); ^, ~* e O+ |3 A# L4 z
5 f# {) l6 I, [5 F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??? ' z. F! m P, Q6 j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???? ; c+ |+ w7 U# Q( {7 K# @8 x* G& V* L) o$ r; t& m
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2.这是request的程序' K8 ?* D5 ?5 K+ G
// Request a value from Extend% b- m- w* I$ Q: n3 J5 s
// ( S3 Z' U) t! a, G+ \ ]// Initialize the variant that will hold the BSTR. Set the variant's ! t/ T& ?/ s% C& X* L5 D// type flag to indicate the fact that this variant holds a BSTR. Place the& b- j# o; p% w% Y% ]
// BSTR into the variant structure. 1 Y' ~+ _9 I" [ G- B/ A; g% _2 w1 r+ G8 _, z: @; q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - v. T7 ?0 J6 v, Z( f0 B " E0 x1 _9 U6 n8 w2 T+ M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 {1 {' o# E% Q9 h T
VariantInit(&requestVariant[0]); ; c- w* @6 _5 @& `2 t3 a/ ~
requestVariant[0].vt = VT_BSTR;' `1 i+ g: O! J( D3 l+ S+ M" P
requestVariant[0].bstrVal = itemStr; 6 B6 U' ?$ u, ? 4 m! \. {% h) {9 k topicStr = SysAllocString((WCHAR *) L"system"); / x/ F5 H& Y! ~% P VariantInit(&requestVariant[1]); 2 E/ n) g) P, ]2 p* m5 K requestVariant[1].vt = VT_BSTR; + s* K4 h7 S9 L requestVariant[1].bstrVal = topicStr; 4 U& y. b+ M1 c5 G& [ " T, ] {, H, G4 g- ^* |// Set the DISPPARAMS structure that holds the variant. $ P T2 @- F, u1 s! Z ( \- j* {& _/ {; w dp2.rgvarg = requestVariant; " \- l6 Q% D3 q2 ?+ O dp2.cArgs = 2;* U% ]8 v2 g0 A$ f4 K4 W
dp2.rgdispidNamedArgs = NULL; 2 B w8 g) U5 e: Z dp2.cNamedArgs = 0;& K. o& L5 a) ^, a# @
: t; G# O7 i2 S: @. U/ c) N3 w var.vt = VT_EMPTY;5 F. ]. m' y1 x3 e' @7 Z" c
; f9 S4 |' u1 H2 [// Call IDispatch::Invoke() $ S- V, M0 Q. y, F* d1 q: Q4 i O7 F+ L6 d
hr = m_pDisp->Invoke(/ E/ L; V2 g2 ^/ ]
requestID, / U7 ]+ z1 F1 v& w IID_NULL, # _$ _8 j9 t- |2 I LOCALE_SYSTEM_DEFAULT,4 Y1 c! C2 h" B9 L+ R5 l% n
DISPATCH_METHOD, 9 g+ ~0 Q* t* u &dp2,7 n. G9 Z$ ^) ?/ u+ J8 M
&var, 5 F, u: [/ i$ v) M( c &ei, # ~ g# t: W% f7 T6 ? &uiErr); : f4 W/ m* `" R2 @+ Q- r1 G t5 e; x, o6 \/ G$ {7 m/ z
SysFreeString(topicStr);: l( }! u# F* F1 r
SysFreeString(itemStr);' p; @: P; V6 a2 w
请问该程序是获得extend里面的哪个值? - h0 P' W3 i9 n: a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????