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: 2 Y, q6 D3 }8 E' X( qName = (WCHAR *) L"Poke"; 1 `* N/ | K. P4 b6 h$ b 2 z8 } r) g9 e hr = m_pDisp->GetIDsOfNames ( . a" }8 V* h. M6 J. ~7 X IID_NULL, // reserved$ s3 s/ w( t. }/ r! ~, C
&Name, // Array of names to get IDs for ) `8 ~" W5 x5 I2 D4 A7 u& K 1, // # of names in the array $ V6 v( i# T6 K& T8 | LOCALE_SYSTEM_DEFAULT, // System locale5 t- T0 S# ~! W, w
&pokeID); // Array of IDs to fill on output- R" H0 K6 C! G6 Z5 H
# P6 y/ o7 j+ q if (hr)( r0 |6 q& L" L- n4 I; J
{ 6 a" z7 u! }! k" w N) N MessageBox ("Get Poke Unsuccessful");+ O* ?( s) f7 D% W+ J& V, Z
return; 6 s/ F9 a d, S9 P) F* ] }; Z/ z# t& I% ^7 N p
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/**************************传递数据给extend**************************************/ 7 Z/ |" T) ~/ d6 J2 w% x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 e9 h% u0 T4 I% f, p ( T# ~0 `) s3 n
valueStr = SysAllocString((WCHAR *) L"1232");; C) ?3 M1 h! [: Z: {
VariantInit(&pokeVariant[0]); 0 Q" H% K+ G3 D# }) w
pokeVariant[0].vt = VT_BSTR;. {% K/ z( P0 C) Q0 S' S
pokeVariant[0].bstrVal = valueStr;/ v3 j2 E4 N. _+ F6 `% L
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / ]; l0 T( M# p6 v! c VariantInit(&pokeVariant[1]); ( S' u/ Y' X) L: O
pokeVariant[1].vt = VT_BSTR; . b& v& ` f, T4 S* m pokeVariant[1].bstrVal = itemStr; ( q+ y: ]$ z$ Y 4 I. ^2 C1 w: U5 m topicStr = SysAllocString((WCHAR *) L"system"); * W' u X/ |' {& S3 Z9 {9 {$ Z0 t VariantInit(&pokeVariant[2]); 3 j3 O% f0 F! t( G9 ~ pokeVariant[2].vt = VT_BSTR; ; p# O, P6 l' m# G' b" m; G pokeVariant[2].bstrVal = topicStr; + q9 O3 H2 l) N( _: g$ V1 p( }( S+ q( ]
// Set the DISPPARAMS structure that holds the variant.- d" n2 `# o" J9 n9 h! J4 @% A
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dp.rgvarg = pokeVariant;. s4 k9 z9 T4 H8 E l" i& H& {
dp.cArgs = 3; . l) D) F; q$ W0 } dp.rgdispidNamedArgs = NULL;7 ^- ?/ x& M& K2 ~( W& v
dp.cNamedArgs = 0;4 N4 s, e/ j, }: E: A* D* Z9 `
8 P; X8 n0 t8 a2 p+ x// Call IDispatch::Invoke() ( q# v/ n3 {3 T8 N! ^: y2 Y. Y% m: }1 O" \9 S5 W3 J Q7 p: A I- A8 o
hr = m_pDisp->Invoke( y* d" |* {& T9 Z# l+ c
pokeID,6 _) r6 Z5 q% i' P, i$ J& Q
IID_NULL,5 I, P$ b( A5 |
LOCALE_SYSTEM_DEFAULT,0 M' U: K4 |+ k9 Q' u$ A+ r
DISPATCH_METHOD, & N* N( H( `# V. r &dp, , B) U, r/ t2 L3 i& ~! e NULL, 6 d; k( B: s; `; O& T# r &ei, ! d% d6 ~3 f C( v" b' Z* Y$ F0 G &uiErr);3 ?4 b' B; P3 @' v# t4 Z
) D: m3 t$ i8 ` SysFreeString(topicStr);# F8 D7 O6 r2 N* p& ~5 [! W
SysFreeString(itemStr); . \# A5 [5 f! J( R4 D p SysFreeString(valueStr); 5 G, R+ g p/ ]5 k1 ^# l* X ' a. R# C6 c1 V+ R+ u1 t L1 G1 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??? $ u5 f( n- @' ?) f6 ~$ b, I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 ]; R9 R1 E5 \4 \6 D$ O" q/ x
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2.这是request的程序0 |% @& a: @; f/ g: w' ^9 @
// Request a value from Extend) O0 T+ f; {0 L5 X8 I$ R
// / E/ Z7 L# ^( q) _, U% z6 z* d% |// Initialize the variant that will hold the BSTR. Set the variant's % p# u: l) G; k/ ^// type flag to indicate the fact that this variant holds a BSTR. Place the9 Y" j* X& `2 K8 x- P
// BSTR into the variant structure. + f2 h7 v) f- @5 ~/ ]! m ^8 P$ g2 L. [: g
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . p* X5 [0 F- `$ x; X! D7 U/ ~ ; P: }& ~& h! D( E6 N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 K0 z" X8 _$ e
VariantInit(&requestVariant[0]); : b0 o+ K S' |! y0 z
requestVariant[0].vt = VT_BSTR;# W) b4 V0 T2 A; I+ v
requestVariant[0].bstrVal = itemStr; u f3 k M8 N1 s8 B 8 C4 {& e6 p7 v9 h8 D6 j topicStr = SysAllocString((WCHAR *) L"system");: [5 |2 O" n0 K, ~
VariantInit(&requestVariant[1]); ! j' A. h0 m4 v" `! ~ requestVariant[1].vt = VT_BSTR; 1 R8 P* y0 g' f+ k requestVariant[1].bstrVal = topicStr;% C( ?4 m3 K5 V. X& f- j I% Y4 t
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// Set the DISPPARAMS structure that holds the variant.8 @8 W0 V# ]; D: C, d
7 Y) ~$ \9 o3 ]2 C3 ^7 J dp2.rgvarg = requestVariant; 4 ~9 D: A* ?/ L6 w dp2.cArgs = 2; 4 z' v e1 b) q2 ^. q; \4 R6 Q; K dp2.rgdispidNamedArgs = NULL;0 z3 i" }& g/ i! \2 `; M
dp2.cNamedArgs = 0; : ~4 {& J/ c, u+ v- a3 Q6 `1 m ; A- H$ _8 m4 G' v2 n& M var.vt = VT_EMPTY;) ?% D% Q& J9 w5 M" @
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// Call IDispatch::Invoke(). u% F$ @$ U1 D5 w! H
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hr = m_pDisp->Invoke( - e" V: @; _& c5 b8 L0 y, ~ requestID, 8 o6 Q' U. A, b; T. e" x IID_NULL,5 Z1 _9 Q& l& H9 I$ }, Z( s
LOCALE_SYSTEM_DEFAULT, 4 C& Z$ q; l1 u T DISPATCH_METHOD, c: f: P D$ T &dp2, 6 a: k' a7 U! F1 S3 l' E# C+ u &var,3 n8 l- k$ x2 J8 f; R
&ei, a; B! C2 n' P9 d1 R# @
&uiErr); / U' {4 G- ^0 S+ w3 O& Y6 E; o2 M" ^8 \& v/ Z( m% n
SysFreeString(topicStr);2 N+ t1 V, {' w" U" {8 Q" `3 Q
SysFreeString(itemStr); 7 I% [! m1 `3 H3 {/ ~4 L" h5 A请问该程序是获得extend里面的哪个值? : i" q8 X4 o: z% E; Y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????