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: 7 v3 q$ S! v" K4 _" S2 d7 A0 b, `Name = (WCHAR *) L"Poke"; & J1 N C7 k# R * K4 s1 t) _ }7 \) F
hr = m_pDisp->GetIDsOfNames (9 T+ B- M' O q
IID_NULL, // reserved2 ~7 |7 B+ C/ V: \9 |: k
&Name, // Array of names to get IDs for/ @3 V& g5 B7 b: Q1 N* x% J. u
1, // # of names in the array 4 l' y9 e$ U' ^4 i# P, K: [8 c LOCALE_SYSTEM_DEFAULT, // System locale 3 [" {% Q5 j/ U* I' @% p/ _7 ` &pokeID); // Array of IDs to fill on output0 n' a5 b& t9 I/ F% A% T
" y; h+ `! u1 c7 g9 c7 x% T7 U if (hr) $ h7 n+ s1 I/ P5 z% D { 3 C1 J- j% k! t5 v+ a( q4 h' g MessageBox ("Get Poke Unsuccessful");$ D, B4 I9 M/ u: _2 W( F
return; 6 `- a4 K( ]+ r" A v+ h } ! g; X$ E. Z/ e+ k! ]: k: r% r* S 2 m( N4 O, [2 l* u/ `/**************************传递数据给extend**************************************/3 R' _( @' H. O* S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- @* Z' a9 h: @5 G/ h1 t, u/ K! l
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valueStr = SysAllocString((WCHAR *) L"1232");" E& B+ {& G* }& L. E7 u
VariantInit(&pokeVariant[0]); 2 }) ?4 t0 m; e+ I9 o pokeVariant[0].vt = VT_BSTR; - y) F1 N/ {0 ~4 J+ Q! E) q pokeVariant[0].bstrVal = valueStr; + O0 w2 f: z' p& E' n ]! L: @* ~! A' u, s+ e7 \
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " a7 Q1 O' g0 R VariantInit(&pokeVariant[1]); # B4 P* E% _6 {' x, Z- f7 K pokeVariant[1].vt = VT_BSTR; $ o' D) O" `* m, H! @1 [$ F7 Q' w" ^) T pokeVariant[1].bstrVal = itemStr;+ ~/ O$ G0 u5 E: b; j( d. c/ y$ n
3 T/ e$ ?, I% E! ?1 i* B! H topicStr = SysAllocString((WCHAR *) L"system"); ' j, p9 s$ O+ j: N VariantInit(&pokeVariant[2]); $ j5 x: U1 B# j pokeVariant[2].vt = VT_BSTR;) B U2 Q; K r0 r; {1 V
pokeVariant[2].bstrVal = topicStr; * _8 \8 d( p6 v# P/ W' W ; C( a* w, O& s1 X* d4 _& `// Set the DISPPARAMS structure that holds the variant.! A% E( n" H, p8 Y
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dp.rgvarg = pokeVariant;, P2 w) S2 g6 I1 ?8 y( H
dp.cArgs = 3;+ O r1 _/ k+ y# q$ E; v# B; ~
dp.rgdispidNamedArgs = NULL; 2 R) r) `: R3 K dp.cNamedArgs = 0;3 G- x7 ?9 X3 V
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// Call IDispatch::Invoke() 0 a; p3 Q; U" X w( h$ Y8 z+ c- A0 L+ [$ ]
hr = m_pDisp->Invoke( $ v9 Z0 {1 n* K% J3 e7 j8 v- A pokeID, H+ K+ b. \; D2 q& `4 H# u6 B
IID_NULL,$ I" f7 P$ t' q
LOCALE_SYSTEM_DEFAULT,4 R4 @* o/ Z5 L, ?
DISPATCH_METHOD, , ^; D' F" E- F2 V+ O& I& G2 F &dp,$ j6 B, c8 T# x. o
NULL,1 X3 n3 }0 f. C
&ei, ) d1 ^" K+ O6 t$ A% C1 t9 Q5 b# g &uiErr); ; K5 }3 O, K$ a/ ^0 G, i+ J # [. B9 @. T) d8 y SysFreeString(topicStr);% o* ~; N: q7 G, c! ?( }: J6 b, L5 C
SysFreeString(itemStr); 5 h+ H, R+ I$ M" d SysFreeString(valueStr); / m: J" y: n( j" q6 p X: C& Y1 R
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???( f' Y. {5 r% p) P% a
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???? ! Y+ M& {, U u( [ g* e; S; s a; f0 m: n
7 D, K& W$ j3 x4 ~6 I" T. Z2.这是request的程序/ d& B1 R7 w p, h" Q) p. e
// Request a value from Extend . C. t1 X/ M. X( @* s/ R//' P. o, }5 Y3 K! H) d) m( O$ t
// Initialize the variant that will hold the BSTR. Set the variant's$ p# Y+ e$ O& X" d/ e; H5 x
// type flag to indicate the fact that this variant holds a BSTR. Place the( l. H6 B6 }& A% } d% u
// BSTR into the variant structure. 4 D/ d" X; z4 H! }' \ ) ^/ d$ T; m9 R& ?. N1 X3 E m. K. u! H2 i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) t K4 P9 U% ^) Y ' ~' c a m3 L' Z$ K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / A+ l; T9 ]- i9 t7 Z" T( U! L VariantInit(&requestVariant[0]); & c( Y# {+ t+ r requestVariant[0].vt = VT_BSTR;9 W; ~" _$ M9 t/ i
requestVariant[0].bstrVal = itemStr;9 o- p: e& [5 o( ?% ^5 n
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topicStr = SysAllocString((WCHAR *) L"system");$ q' U+ ?/ I5 @" o, S, N( _
VariantInit(&requestVariant[1]); ' P Y3 Y7 w, Z$ K3 n/ m$ b. b4 T requestVariant[1].vt = VT_BSTR; / Q7 I6 ?3 f" Y. L requestVariant[1].bstrVal = topicStr;0 D" S% ]1 j2 I+ p& `* I
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// Set the DISPPARAMS structure that holds the variant. : V o8 ^6 `4 z/ h8 i; Q3 e; Z3 L 2 t% T2 G% y2 w8 K A dp2.rgvarg = requestVariant; 2 ~6 K( k" z- k. C dp2.cArgs = 2;* H# P9 M+ i2 J O3 z" Y' u# x
dp2.rgdispidNamedArgs = NULL;8 r3 I1 j# D! o3 z* F" P4 X* M* I2 H
dp2.cNamedArgs = 0;3 l9 w+ B0 r8 ?" k2 v2 u# i
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var.vt = VT_EMPTY;' |7 n! r2 H \! Q. {/ w. L