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:" q% D2 t% I: F$ g3 @
Name = (WCHAR *) L"Poke";. l; C* o1 L6 J' S' `
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hr = m_pDisp->GetIDsOfNames (3 h1 H! G4 T7 w+ h0 W( K% Q q+ o. G& t
IID_NULL, // reserved% l# l ~) ~' i$ m [5 d7 }! m. U
&Name, // Array of names to get IDs for % ?" W, g2 \% k K. y3 J- ^ 1, // # of names in the array . r4 d3 c: r9 U5 F. \ LOCALE_SYSTEM_DEFAULT, // System locale : `) | x0 g3 T1 N &pokeID); // Array of IDs to fill on output& ? }- a3 @* T. {% L" x3 f
8 G( ^; X! n' P/ C( W if (hr)6 N# |3 K/ r, t
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MessageBox ("Get Poke Unsuccessful"); 1 f/ Q' t. V* d, S return;/ G+ V" l+ m- v7 n e0 F
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8 J* ?% E3 l3 q/**************************传递数据给extend**************************************/$ t0 F. v+ }% |3 ~' d, f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 V2 F& F: m) z6 Z. Q& S& m
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valueStr = SysAllocString((WCHAR *) L"1232");' }% f$ |& ~7 M5 S: b: A+ _1 B
VariantInit(&pokeVariant[0]); " N$ Q; r) m9 m' C+ e6 [* [% F4 o J pokeVariant[0].vt = VT_BSTR; + h8 D+ \/ Z; ^! x$ h' Q& T pokeVariant[0].bstrVal = valueStr; ; d9 E7 S1 |" K3 `4 d; l: ~ A# \! J2 K& j3 b! c8 x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . s$ _& W) l& D) F VariantInit(&pokeVariant[1]); 0 B5 v$ f' N- `: l* ]) @3 ]
pokeVariant[1].vt = VT_BSTR;% c% @* j d6 h0 J$ s5 ]) s
pokeVariant[1].bstrVal = itemStr; 3 \5 H6 V4 R& c7 s5 k" S J. O) @! b( z' G; T* `
topicStr = SysAllocString((WCHAR *) L"system");7 @! Y# l( a; z0 h% r" r
VariantInit(&pokeVariant[2]); 7 \( S* x4 a$ X/ } pokeVariant[2].vt = VT_BSTR;/ s8 r. B/ Z5 B7 L+ |& t
pokeVariant[2].bstrVal = topicStr;$ y/ N4 A# A) {8 N
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// Set the DISPPARAMS structure that holds the variant.8 V/ c6 K9 E) p5 {. _
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dp.rgvarg = pokeVariant; 5 E, p: {3 }4 t( R+ m" Z dp.cArgs = 3; % r2 _( d3 }% g7 O% V dp.rgdispidNamedArgs = NULL;; V* o9 H- w- m: `9 g2 n) h$ ^8 g* f
dp.cNamedArgs = 0;& R! n8 J+ a5 L9 `6 Y) }" F$ [1 P
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// Call IDispatch::Invoke() $ ^ i4 \0 c: `! W5 T" ]9 u' o* U& r3 I
hr = m_pDisp->Invoke( 4 c/ M7 a/ ]! E& `! _# w2 o pokeID, , r7 C# G; [5 l8 A1 A/ Q IID_NULL, 4 B3 X2 m* ]# d% P; N _ LOCALE_SYSTEM_DEFAULT, ! Y) m. ^8 K& s- [7 P" a6 \ DISPATCH_METHOD, 5 X n' k/ g% _ ?3 Y3 J/ ]# n &dp, * d) c+ ]) {9 p: T) b2 x NULL,- Q" Z! p2 S& y8 P3 N0 }
&ei, , H6 B7 k- K: B7 u: Y- V( y5 B &uiErr); 2 h6 {0 Y8 K, \& c# G) ^, v9 O R! p1 J$ D
SysFreeString(topicStr); 7 l/ }, d# R) z1 |7 [! G8 i a SysFreeString(itemStr);1 p8 Y- F+ }* A( v1 o+ a
SysFreeString(valueStr); 1 w# B4 f0 f. ]5 e 1 P. Y& m8 `$ [! u% s" J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???0 r$ B$ t# L. I& m
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????6 d q+ z* n, g( C3 V
; t. w( _# p. A- h, t9 Z + u- P, L& \& E% @7 M0 }2.这是request的程序# m( J! l- T: A! j$ D ]
// Request a value from Extend 4 U% G, n: [2 T6 \% m( x0 d// ! ^ X9 x1 m8 c( E1 r/ r" B/ z" V* }, p// Initialize the variant that will hold the BSTR. Set the variant's, N4 {( A$ |" p5 b; C! i* K
// type flag to indicate the fact that this variant holds a BSTR. Place the 2 n' m- E' k# X3 _: ]" ~( |// BSTR into the variant structure.9 g* T. A8 }9 x- ?0 f$ I( T B
0 @9 T' v: T, W* Q- X2 e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , X% V2 F7 O" p1 F 8 j0 c5 f) `( G: ]9 i, {0 A; a$ G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , n; M+ w( [; K5 e: l VariantInit(&requestVariant[0]); & k# t/ [* `" g7 Q5 ? x+ B! M
requestVariant[0].vt = VT_BSTR;& H# `- v4 W) o" R+ }* Q0 [
requestVariant[0].bstrVal = itemStr;/ ~4 D y) ]; x% V
3 c e! j5 R* q7 R7 [ topicStr = SysAllocString((WCHAR *) L"system");7 ~0 [- X* f- l) `9 a: N+ n' x
VariantInit(&requestVariant[1]); , J' y6 w7 D5 z' U5 R% d5 V requestVariant[1].vt = VT_BSTR; ' c( L: D5 Y' r2 E' k+ F$ K requestVariant[1].bstrVal = topicStr; 9 E( \1 {9 t B, O+ [ ) J# r$ k# M$ A6 o' f// Set the DISPPARAMS structure that holds the variant.9 A3 U7 P5 _ x" [( F0 r0 @1 G0 m
+ l+ L& [* q' a- `) A+ t dp2.rgvarg = requestVariant; g7 i. L) h* Z5 d5 ] dp2.cArgs = 2;" a" U Q( b* g' n6 p" T" E
dp2.rgdispidNamedArgs = NULL; . L+ }, i, Z) v; ]/ L6 K( z dp2.cNamedArgs = 0;" [: r* |8 ` k" c
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var.vt = VT_EMPTY;7 x: L9 n1 A0 k$ ~( H# ?6 G