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: G8 `& D9 a% `4 J( R% ^9 T6 k
Name = (WCHAR *) L"Poke"; y& n2 ^8 a6 G/ [' }0 m ! k3 {1 x3 ?9 I5 h4 ?' ], {
hr = m_pDisp->GetIDsOfNames (; W3 b) b4 \' P1 q7 ?
IID_NULL, // reserved ' y+ `1 f9 n5 `" Z) ^ &Name, // Array of names to get IDs for . O! L7 D. [$ V/ Z8 Z' F 1, // # of names in the array " c2 ^; I* m, u; K7 Y( O2 F LOCALE_SYSTEM_DEFAULT, // System locale : i( `! j" z5 D# p( v, [5 c u &pokeID); // Array of IDs to fill on output/ T+ \ }& i1 z9 z
: M6 C2 f4 R3 P* [! R9 e% | if (hr) # I: I) e; W5 X { . g3 c2 z& `! b! x/ k$ q7 o MessageBox ("Get Poke Unsuccessful");; w# B: C2 ~& Y& J
return; ; R! w* x. i, z; k" V1 ]0 I% w } 0 F! @- w; D: J% k0 Y % d) H# C9 P: h$ _% `" u/**************************传递数据给extend**************************************/ 2 q; B& d8 P J) s# d q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 v3 L9 g7 I2 X 3 |" s/ [3 C: V' a valueStr = SysAllocString((WCHAR *) L"1232"); " l4 V* c5 d6 K- o' q5 F: T VariantInit(&pokeVariant[0]); 1 c4 i' x) `+ T) f) N
pokeVariant[0].vt = VT_BSTR; 7 x6 {8 Q1 Q7 c3 t: x pokeVariant[0].bstrVal = valueStr; 4 H$ c' g: ?: z4 e1 T * E- y4 E- e' {8 c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ ]0 F+ x, y z" b( H* A) X" K VariantInit(&pokeVariant[1]); ; F. z6 ] o, @, y, M P5 V" t pokeVariant[1].vt = VT_BSTR;( q& d( ]' a+ O9 v" {
pokeVariant[1].bstrVal = itemStr; 5 w& \! y6 n, D1 h0 t) P $ p8 E" Z; S( o5 _$ @3 s topicStr = SysAllocString((WCHAR *) L"system"); + M2 p/ Z" z% H) L R( D VariantInit(&pokeVariant[2]); k( z% s5 B1 J V
pokeVariant[2].vt = VT_BSTR;/ W5 B( t7 c% q
pokeVariant[2].bstrVal = topicStr; 3 n! W3 ?4 c2 u- U+ w/ ? # p. X. C# M- I# X5 p& _// Set the DISPPARAMS structure that holds the variant. ) f2 M; g) K- \$ a8 V, w. V- N# M* x! A
dp.rgvarg = pokeVariant;% c& o. o$ f6 P6 Q, }+ y; p
dp.cArgs = 3; 3 }+ h. o6 [( ~" }5 f- o% k dp.rgdispidNamedArgs = NULL; 8 I; k+ o) q5 N( j dp.cNamedArgs = 0;9 \7 c* j/ Y. ~7 O
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// Call IDispatch::Invoke()% Q+ P. j' a+ y- \! ]
9 b: r+ @) H4 v! B L0 _ hr = m_pDisp->Invoke( 2 b+ y) f7 l& ^' @9 ^7 \ pokeID," ~ Y. ]- @. R2 n! h D, s
IID_NULL,9 }1 _4 j v& B5 N$ V7 q( f
LOCALE_SYSTEM_DEFAULT, W1 p. B# b F2 k) ~8 Y
DISPATCH_METHOD, # J7 J- k* j6 T. S% W( ~ &dp,, ~( X+ k4 W0 J' O N$ g5 f. l
NULL,5 W1 i' l6 \* R
&ei,. }2 w/ H) q) O8 z I) P) p
&uiErr); b7 ~, t9 j6 I8 r9 {
- V5 \7 z# x& w! I6 @
SysFreeString(topicStr); 3 y a9 o# |& e3 W SysFreeString(itemStr);# { l' W7 O" u# V: O
SysFreeString(valueStr);: ]5 x, \( n& z, x! g
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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???. E$ S$ N0 v- D
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???? W; j( r. N, C9 H$ d6 T5 a1 j4 f; ~1 M7 F4 d2 Z
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2.这是request的程序 7 @& k, R+ \" ]. h// Request a value from Extend1 `8 [, M. B O
// 9 [4 Q% j4 R9 ], x# G5 D' {// Initialize the variant that will hold the BSTR. Set the variant's ; E; w: |! A4 Y. t4 [1 j// type flag to indicate the fact that this variant holds a BSTR. Place the$ {! f' k* V/ G
// BSTR into the variant structure. : E: q" C3 [3 Y8 a) t( [7 f: O 6 L& E4 G4 B" M3 A2 M: F requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# u) W8 Y1 x$ e% W" P% k: m$ R* e
7 Y6 u4 E' D2 L! v( M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # {9 V) x% `$ q% z, J) l: b o- ^+ f% A VariantInit(&requestVariant[0]); $ m# z5 i, a5 q% O
requestVariant[0].vt = VT_BSTR;/ A2 g& J$ K$ @$ m! Z4 X+ C
requestVariant[0].bstrVal = itemStr; / N8 @7 G( r& R5 Q6 u9 Y! n , e6 s. S% @3 j- }% u$ e8 { topicStr = SysAllocString((WCHAR *) L"system"); 4 s. W+ O, @, d7 [ VariantInit(&requestVariant[1]); + R# w9 i0 i) E& {" b e0 r requestVariant[1].vt = VT_BSTR; 5 j: T7 q, f2 H* ]7 O" c requestVariant[1].bstrVal = topicStr; ( f- ]- |% p7 H% k0 u* V0 r+ }6 K m- @, o* l$ B% q
// Set the DISPPARAMS structure that holds the variant.4 p$ W8 D* {! L! S3 [1 L% k8 ?
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dp2.rgvarg = requestVariant; ( Z5 ^6 e( |6 K# A, Z dp2.cArgs = 2;/ |( d9 x+ q. a
dp2.rgdispidNamedArgs = NULL; ) ^# C% F0 b! X A& R& O dp2.cNamedArgs = 0; q+ k- b3 q4 m$ f5 i, V; R' x, O$ \( Z, {# Q( I, f4 w4 Y) R
var.vt = VT_EMPTY; ; C& i) p5 r/ }# |3 C7 j0 R- Z" E* B7 E/ V& N9 b
// Call IDispatch::Invoke() . m+ ~% T) H% C' |) g! ]3 y0 U1 x0 _: ]- s. p j1 i
hr = m_pDisp->Invoke(& c: {# ]% ]( ]5 h8 o
requestID,5 X: @( E* x4 r4 A
IID_NULL,4 J" B) c( L& P, {$ \8 o; O
LOCALE_SYSTEM_DEFAULT,/ b6 O" k: d% T& [+ N
DISPATCH_METHOD, : X4 a: O3 ~: ^4 W' R &dp2,8 c% b. r9 @( o* ]) j$ k1 c' E: ~% f
&var, # V( X: i& Y' b$ [: c9 W1 _1 ] &ei,. `6 ?( [+ K; l0 s- Z* q! l- l
&uiErr);# {9 p* b% Q; d% @: r) A* l
1 b- a) J) ^# e( W9 B$ C SysFreeString(topicStr);2 n7 V/ S X$ s( y. ^7 C- v/ b: K
SysFreeString(itemStr);( C8 y2 C# e& k, z1 @- p
请问该程序是获得extend里面的哪个值? 9 V9 w2 M7 I: G& f" L) W0 D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????