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:# t: T* {6 G& j5 d5 z: i
Name = (WCHAR *) L"Poke"; % D) e' X, m9 D* @0 C8 S* v / K( ?; ~' i8 C( W
hr = m_pDisp->GetIDsOfNames ( 2 y" x( `: r7 K4 R! ?0 I IID_NULL, // reserved, j q" `9 t+ h" c) p8 R
&Name, // Array of names to get IDs for 0 S$ t5 r/ Y' s0 f# }, L 1, // # of names in the array 1 w1 Z) c4 f6 \5 H: ]. M0 n) p# D% u LOCALE_SYSTEM_DEFAULT, // System locale R* Q) i7 _' a X1 {; Y0 @3 B
&pokeID); // Array of IDs to fill on output/ d6 V: Q1 J5 d Z. @4 I7 ]
# Z; w f @# Z* W5 C. y0 u) B& Z if (hr)/ l/ Z4 b9 [ f+ t; q9 U' V
{ . B2 n9 H% x7 G( A, \/ r MessageBox ("Get Poke Unsuccessful");. o, v ]6 A4 Q/ f# L
return;. m; R$ ^" O+ [' ~$ S
} % I9 N' O( b* p0 I7 p4 u # v# t7 J; J, C0 @7 H, ]! U. J/**************************传递数据给extend**************************************/1 E1 H0 t9 r7 {, l/ p
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + n* E, p/ a( X. ] # a8 n/ T8 C0 g \( t) V, R valueStr = SysAllocString((WCHAR *) L"1232"); & \% k. _6 x& ?: N# } VariantInit(&pokeVariant[0]); / `5 J( I u7 p& N2 p6 n( g pokeVariant[0].vt = VT_BSTR;: b4 f b( `# H
pokeVariant[0].bstrVal = valueStr;' Q2 r; S0 E* M% K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 j! V' `; u4 J; c3 i
VariantInit(&pokeVariant[1]); # e; a% h/ P; U) P6 q6 @
pokeVariant[1].vt = VT_BSTR; ' i* F2 E6 E% S8 P4 ~& i) | pokeVariant[1].bstrVal = itemStr; 4 e% ?4 g p( F, }6 F# X2 x5 g+ t& c
topicStr = SysAllocString((WCHAR *) L"system");+ s! e& r: o' e0 a4 d5 }& X) E. Z
VariantInit(&pokeVariant[2]); ; u: Z) M& ?6 O, R7 Q- a+ n
pokeVariant[2].vt = VT_BSTR;$ v9 M! M. m G
pokeVariant[2].bstrVal = topicStr; , }$ V" a5 Y' i8 C! \; x6 [6 Z2 ~# X
// Set the DISPPARAMS structure that holds the variant. " C% o- l# J0 p: I5 a9 Z) C7 e, g' p5 }" z" l
dp.rgvarg = pokeVariant;3 L0 d+ r- [& d7 N8 H" x( U W: t0 e
dp.cArgs = 3;6 m- R, r: q! m# D4 k% ]$ F
dp.rgdispidNamedArgs = NULL;, H6 C1 {! v" g- E- x& b8 W/ {
dp.cNamedArgs = 0; 9 K3 ~& Q' x8 V8 h4 R6 Y# c ! ^, Q3 c4 x0 H) G' A$ o// Call IDispatch::Invoke()8 @1 U+ F$ c! N/ i
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hr = m_pDisp->Invoke( 0 F0 S& `6 B: ]7 N* f+ d9 H+ O pokeID, 7 @! k5 z: i8 ^4 Q' b: F& b IID_NULL,, ?& C' L0 l8 k. G- E$ [7 _- s
LOCALE_SYSTEM_DEFAULT,4 S; I5 l# O/ } ]
DISPATCH_METHOD, ; H$ X( f- G; v/ J& z) X( y, { _/ u7 l &dp, + p" V; }( a$ t0 w* d NULL,5 F% h1 T6 ~9 h7 G0 {
&ei,; q6 T( y5 d# u
&uiErr); ! ?6 ~% v+ l8 R 1 q% r. o" e5 @7 v0 M" {' r6 \0 b SysFreeString(topicStr); 8 \; N7 x3 }' Z& x9 y+ d: y* h1 c SysFreeString(itemStr); # K3 y5 i8 X# ]$ I3 f" p5 d( _ SysFreeString(valueStr); 9 O& i( \$ X9 ~0 k/ W : v( X9 C6 w. ?% x4 {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???, H7 ~+ D+ T6 g& G/ l5 w
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????) L/ \+ S& i9 \! Q1 B% w1 x
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2.这是request的程序 Y' E* Q* x4 D8 I// Request a value from Extend $ |) J6 i) M2 k4 e9 Q6 c" e// 6 ^# E6 M, S. `! i// Initialize the variant that will hold the BSTR. Set the variant's 3 `( ]& ^- P' w7 t// type flag to indicate the fact that this variant holds a BSTR. Place the $ f+ ~/ Y3 R% M// BSTR into the variant structure. 0 b' A) h6 _4 o% c& X m, ]! p) {! `6 z; _+ A/ p. X
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 n8 f: q, d+ C' H8 T$ X# ]: F
1 ]2 G* v! J, v# u0 x. C1 t itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 s0 d) m, D0 G! k: |$ c$ _! N
VariantInit(&requestVariant[0]); 9 V1 w9 I* n- j, S) ]1 l requestVariant[0].vt = VT_BSTR;+ F6 ]& G, N- h. H. k; O/ o2 D
requestVariant[0].bstrVal = itemStr;) R3 t1 R. G1 t
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topicStr = SysAllocString((WCHAR *) L"system"); + J9 @: S: p& i1 S; z: X VariantInit(&requestVariant[1]); # u N- v) d: t. i# k% T. }
requestVariant[1].vt = VT_BSTR;0 z; x1 K& `# c3 r& Z% o0 Z* @% O
requestVariant[1].bstrVal = topicStr;" P) o! l4 O8 B; }* U( B; s& k; A
: ^& X; t6 j' {# \$ w2 R2 y! |// Set the DISPPARAMS structure that holds the variant.' [6 B7 m2 t* y* P/ i; @
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dp2.rgvarg = requestVariant;) ~: n+ M( w9 B# T
dp2.cArgs = 2; 4 B" l: |0 h i$ Y6 S( E dp2.rgdispidNamedArgs = NULL; 6 J+ f# p |+ q/ E8 h6 T) T dp2.cNamedArgs = 0;+ F; P z* a8 t" @3 o# I0 O
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var.vt = VT_EMPTY;" Z& C7 U0 O, e; K7 u
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// Call IDispatch::Invoke() L- y* w5 _8 ^
8 E E: d% ?, T3 e hr = m_pDisp->Invoke( 7 `5 r0 R& n" _" W# w* O: o7 e4 R requestID, ) { F: }* X7 S, G1 v+ g IID_NULL,5 `6 _2 |! P: w+ r$ y ~
LOCALE_SYSTEM_DEFAULT, ) J6 H7 h% G! \# g9 v3 `1 K$ [$ ~5 m, t DISPATCH_METHOD,, W8 S' B- _$ m8 V% O$ L/ }
&dp2, 6 q6 ?( y( R% }3 K &var,4 w- o% z" }: C" f3 C# O
&ei, 0 Q/ T# p0 r4 d- b5 i# Z' w, h &uiErr); 2 g8 e) J$ [ {3 N \" S) A4 a0 u , j1 m" L6 j, r1 k SysFreeString(topicStr);. X6 X, X% u; v3 D# N
SysFreeString(itemStr); : v; W8 Z- g- T请问该程序是获得extend里面的哪个值? ; w# ^! |- J1 ~8 l! P; r8 U( j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????