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: ; D. ]+ f; W a% o! f+ `Name = (WCHAR *) L"Poke"; 0 X& v2 C" c: K( _3 Y 5 j! Z+ Z& b/ a; _* z hr = m_pDisp->GetIDsOfNames ( ( }6 l" `: R/ n: K IID_NULL, // reserved0 d. r1 I3 F1 o- W
&Name, // Array of names to get IDs for + Y. U6 g2 M# I1 s" W 1, // # of names in the array ( {. @7 u. d. {& A X/ t" r4 }8 O LOCALE_SYSTEM_DEFAULT, // System locale0 q! \% z! n5 q |
&pokeID); // Array of IDs to fill on output/ g) T/ L; s% g3 P, ^0 C7 c
, e6 c! b% w) l8 h if (hr) ) |: N9 E! v1 O: [( i { ) o* A- s% p& v: r" { MessageBox ("Get Poke Unsuccessful"); 5 J$ y, r0 ~7 v( i3 @# N return; + G9 ^* ^2 G- T3 m }1 z: X7 x' a/ ]% ~8 Q7 L8 h) u+ t Y
& v: a1 l# W, G, L$ h9 Q/**************************传递数据给extend**************************************/ 3 Y" s+ L3 c' r( y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) v6 O* `7 g) f3 N4 q ' ~4 T5 T, e& v; \ valueStr = SysAllocString((WCHAR *) L"1232"); ( Q8 @4 U& r5 ^, h2 Z% h+ k# u" L: v VariantInit(&pokeVariant[0]); 6 d u& H& Y. _ T& h- U+ i. i
pokeVariant[0].vt = VT_BSTR;! A' {5 P& Z% n8 |
pokeVariant[0].bstrVal = valueStr; T: l" v1 V. L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. ^; \# @1 x# X: D8 D: s8 z4 U; h
VariantInit(&pokeVariant[1]); , [) C; k$ ]% ^* |
pokeVariant[1].vt = VT_BSTR;+ l5 [: ?1 B0 b
pokeVariant[1].bstrVal = itemStr; 7 v/ Y0 I6 t0 @- }, p0 n# O 5 H5 `9 p" _. f3 s ^+ D7 v! i# c topicStr = SysAllocString((WCHAR *) L"system");& B' x: F( B/ A
VariantInit(&pokeVariant[2]); ~) Z/ C+ q9 u( w pokeVariant[2].vt = VT_BSTR;8 n/ U6 L9 |3 N7 X$ E9 M1 J9 d
pokeVariant[2].bstrVal = topicStr; 7 v" ~3 m% N& i! g5 t# x ; t8 ]9 H) r3 X g {6 d# h// Set the DISPPARAMS structure that holds the variant." p' s* d& |) A( x/ ?" _
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dp.rgvarg = pokeVariant; y! X% [. x" z% ], d' [7 z6 I dp.cArgs = 3; / @6 o8 V& ?- b dp.rgdispidNamedArgs = NULL;$ ^' _- g; s/ L
dp.cNamedArgs = 0; $ l B1 x) P, V$ ~+ H! F7 J 8 I: p9 g2 J0 \/ N* M n ?// Call IDispatch::Invoke() 4 l6 f7 m# x, }9 d' z: L' v; o5 B
hr = m_pDisp->Invoke(' _' D1 D+ j- p: _
pokeID,/ i0 q1 A: c v" p# R
IID_NULL, ! P/ o9 x; e# S% D4 K' `% G ] LOCALE_SYSTEM_DEFAULT,8 P( F; J9 n6 I3 A: z. r9 F2 x
DISPATCH_METHOD,! y# x' N8 ]7 S7 ` Q6 }
&dp, ) v* U9 c3 K% ^8 t) x6 z NULL, 2 O1 E: ?( \; S5 ] &ei, 2 B+ c" H; D) Q w4 M% V `! @ &uiErr); ' t8 d, H' @: V$ p( M. J% J) }8 s
SysFreeString(topicStr);4 i* G9 B( ~+ W
SysFreeString(itemStr); 3 ^* l F: J7 Z SysFreeString(valueStr); # ~0 O( T3 u0 g& ?8 @ " ~" j5 L+ B! ?6 f" B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???' N, K2 j# O; I* k8 h
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????4 h3 g! K) [( T3 @
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+ B* I. O0 ? }" F6 I3 d0 K! r2.这是request的程序* y; L+ f5 m }- e+ a+ D S% N
// Request a value from Extend 6 B: E Y3 T, M: q. l4 ~3 H7 d: Z$ h// 9 \7 d2 z, Y5 y. t) R5 S3 X" b* E// Initialize the variant that will hold the BSTR. Set the variant's }7 Q0 q- U& L) U9 a// type flag to indicate the fact that this variant holds a BSTR. Place the 2 ]0 w, i B# w! p$ ?( n// BSTR into the variant structure. T: q, g9 }+ h3 C$ y, V 8 B. l3 T. A; k9 q6 Y( A d# G2 a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* O" x+ o4 D9 s( _/ S) _8 F, d. z
' }2 Z& v$ O+ K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 [2 E' D% ~+ V3 d3 ~: ]/ D9 ` VariantInit(&requestVariant[0]); & @, S; k3 N9 e6 D$ r+ i
requestVariant[0].vt = VT_BSTR; 4 [7 j- O+ T# x requestVariant[0].bstrVal = itemStr;$ e, B) r# }4 S6 r* [; }9 q5 L
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topicStr = SysAllocString((WCHAR *) L"system");# D* s; j1 X* E" ^2 I( Y
VariantInit(&requestVariant[1]); 3 \+ B7 z/ [$ G4 ^" D requestVariant[1].vt = VT_BSTR; c1 ?. q& P" u$ H. w& r8 m
requestVariant[1].bstrVal = topicStr;. J2 K0 g" b3 q8 G8 b
* Y# z) B1 T. s$ f7 O// Set the DISPPARAMS structure that holds the variant. . \* s4 u' T' z8 F+ h* g# Z8 g L2 \7 [ c& y7 `; A* p- z# A
dp2.rgvarg = requestVariant;, p1 F C h+ ^" I6 R
dp2.cArgs = 2; / g; z2 H# Y$ u: Z# v/ t dp2.rgdispidNamedArgs = NULL; w7 M- B7 D- l
dp2.cNamedArgs = 0; : ?& u! c% O8 G6 L& V/ a8 x2 U. I2 \2 \
var.vt = VT_EMPTY;. e, K2 |- a0 A2 z1 w