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: 9 D+ I( R7 P* O Q w$ h& QName = (WCHAR *) L"Poke";1 w) t7 L7 V2 W0 L. I$ n( r
+ T- L6 d j6 x, H4 p$ w hr = m_pDisp->GetIDsOfNames (9 f7 I9 _/ T4 z ~
IID_NULL, // reserved ) d! _, L% X7 t, ?. d$ J6 r &Name, // Array of names to get IDs for L. `/ a) e `1 |0 j
1, // # of names in the array 8 @' }# u; z. z LOCALE_SYSTEM_DEFAULT, // System locale " `5 K3 U% _ G8 a &pokeID); // Array of IDs to fill on output N( B2 L) k$ N* d1 c) z/ j
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if (hr) 0 S5 d' p* s$ M$ }) [ {" J2 z( j- {& o6 s
MessageBox ("Get Poke Unsuccessful");6 i: j1 y& p: P& w, B- X
return; ' M3 K& n' i$ d: G }1 z* ^8 G8 P+ F/ B
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/**************************传递数据给extend**************************************/5 l; y1 W; ]& q, X W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' a8 |$ {! ~8 P" \& y; q
8 ~. b: G$ L# {, \/ _+ n" K4 a valueStr = SysAllocString((WCHAR *) L"1232"); 1 }) q$ [" x$ D& T VariantInit(&pokeVariant[0]); ' u( q/ N; [! N; m7 t% N- r* R
pokeVariant[0].vt = VT_BSTR;- ~, k0 d0 \& f3 d# o. z
pokeVariant[0].bstrVal = valueStr; : r. |% ^+ k. |9 n2 q* Z+ M! q- r' U 7 B, R, v. Q* V3 x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 r& Z! [/ _/ F' E) b, f, ^
VariantInit(&pokeVariant[1]); 3 | B* v2 C2 ^; D. U$ s pokeVariant[1].vt = VT_BSTR; 9 `/ h4 M1 U4 L pokeVariant[1].bstrVal = itemStr; # m4 v6 t8 T q+ C4 ^) ]* Y7 h3 P
topicStr = SysAllocString((WCHAR *) L"system");0 x* A. [# U1 D' I! e. w
VariantInit(&pokeVariant[2]); 4 |9 |4 @5 p( k1 T2 E6 N0 p& K( x pokeVariant[2].vt = VT_BSTR;; Y9 }9 N; h% o. f
pokeVariant[2].bstrVal = topicStr;, `) j1 U7 [2 P) o
" i& C$ d2 {' I6 n% ]5 n2 Z// Set the DISPPARAMS structure that holds the variant. % F. x" h1 c) v: U1 e4 E; Y* q7 h9 }
dp.rgvarg = pokeVariant; + A: q& Y! b2 D3 \" J7 f f7 k dp.cArgs = 3;* R; \& Q) n5 f$ j
dp.rgdispidNamedArgs = NULL; $ e S6 b* }- ?. ` dp.cNamedArgs = 0;1 e7 s6 W" k4 g) o4 h! [
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// Call IDispatch::Invoke() " }" j; { G1 o- z% _/ g8 U; {# G) D' S. `" s; X: n
hr = m_pDisp->Invoke( w: s/ {: E2 |/ n pokeID,3 H$ J9 d8 |2 [7 p! L
IID_NULL, # w' d" A( [9 ]$ b" {' x LOCALE_SYSTEM_DEFAULT,( G& _$ _3 X$ N; d% L% p h
DISPATCH_METHOD, * Q1 i- O3 T' o6 t &dp, 5 \+ q% p, J5 z, ?" C; [" v NULL, ) V |% i! X+ R) o &ei,. w$ c" l& ^2 z3 r
&uiErr);' C+ G) X4 ^) c8 W9 I# p# |
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SysFreeString(topicStr); 3 G, n$ N' L9 [0 J( ]0 j- ]5 n ^ SysFreeString(itemStr);3 B! [* E! a. v l
SysFreeString(valueStr);' r" m2 c7 ~9 C5 @7 p/ C. m
5 M" A8 q" w k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??? ( b1 A, v5 X) ~$ L: @% Z+ {3 K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????% o% M" P3 }. |7 x; U4 N
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2.这是request的程序 2 q V( B6 T2 g" X+ {) Y0 \1 @ R// Request a value from Extend / V$ @/ W- d3 k1 M//; P d/ D9 @( [* a/ _
// Initialize the variant that will hold the BSTR. Set the variant's* X! `% M P9 |9 ?0 z8 w
// type flag to indicate the fact that this variant holds a BSTR. Place the- l; m# K P! t8 q
// BSTR into the variant structure.% u! F6 k$ \- m
9 \2 U l7 @/ f requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. `/ R: |% w/ a& p6 S U
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" S+ W0 s7 f9 Z
VariantInit(&requestVariant[0]); % E8 N5 i Z( o' q; ~" s. ?# S
requestVariant[0].vt = VT_BSTR; 8 p) @& J3 V3 `/ W: T/ y% S9 a4 K requestVariant[0].bstrVal = itemStr;/ I5 \& }7 j+ L }3 G
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topicStr = SysAllocString((WCHAR *) L"system");7 k) Y$ E# O: u2 e) } [" P- O
VariantInit(&requestVariant[1]); " Y) A: g8 r: j% a requestVariant[1].vt = VT_BSTR; ' Z+ Q2 W$ H2 {9 U2 ^3 v8 p2 q, W7 }. Q requestVariant[1].bstrVal = topicStr;3 q; l; A. I& P. T2 a. b
- Y) x/ W+ `3 o9 U$ H8 f// Set the DISPPARAMS structure that holds the variant.. h8 T0 w) A# @7 F) C0 N. l- r