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: & {6 L# R8 ^4 t% J$ i# jName = (WCHAR *) L"Poke"; / o6 d, A9 T- T% T 7 ~0 q! A( S7 |; g2 ~6 u3 H# c" k hr = m_pDisp->GetIDsOfNames ( . |( r' F% Z) d IID_NULL, // reserved , q' z; ~3 V. \& `5 U$ G &Name, // Array of names to get IDs for . a) j* o& j0 r0 A$ ]3 x I8 B 1, // # of names in the array6 W+ g1 h( @3 N, g9 w; G% W
LOCALE_SYSTEM_DEFAULT, // System locale ! _% X: n1 `1 g6 F &pokeID); // Array of IDs to fill on output i( s* u6 V, \0 E
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if (hr) % k: p6 y2 M3 c( F3 E; b {0 I! \7 `( b3 X: G; A" Z
MessageBox ("Get Poke Unsuccessful");4 y' V& y" ^5 j% X- Q7 ~4 @
return;- g/ n( U8 [3 V: @; {: l
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/**************************传递数据给extend**************************************/ ; s3 Z$ J2 P% l8 _; f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 a& L6 }% e% A. z$ J/ z4 ] / O; `8 d2 x* o0 h/ K$ T7 e9 w valueStr = SysAllocString((WCHAR *) L"1232");+ W/ Q r G7 r; @4 x
VariantInit(&pokeVariant[0]); 7 K2 V2 Z) E2 m2 B: I) K- j
pokeVariant[0].vt = VT_BSTR; 3 ]( |2 i7 z9 E4 m* M) W4 S: L8 \ pokeVariant[0].bstrVal = valueStr; $ H* W, L7 g( h$ q7 K; [0 }* ^6 |8 v& N: U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ G" z# s8 b, z; i VariantInit(&pokeVariant[1]); ! Q4 n- Y8 t" _) v+ j! s" D8 v
pokeVariant[1].vt = VT_BSTR;3 j! n7 L. Z, Y
pokeVariant[1].bstrVal = itemStr; 5 g, d( ?3 ^/ I1 Q ' _9 J5 {9 D8 R, L3 b topicStr = SysAllocString((WCHAR *) L"system");- p! s& o$ p* D$ A# t; s
VariantInit(&pokeVariant[2]); % h+ l: k3 p5 [ pokeVariant[2].vt = VT_BSTR; $ I6 W. d) u: [. e% A pokeVariant[2].bstrVal = topicStr;5 m) _# S2 s$ B
% h; z! [0 n" l+ |4 {+ x// Set the DISPPARAMS structure that holds the variant. ) x4 c2 ]- _' E% B# Y # ~* q; Y. t' Y8 g dp.rgvarg = pokeVariant; " v. z' y+ g+ \) w5 p7 [6 h: @ dp.cArgs = 3; f( s: I7 }( d3 k7 x' I' D
dp.rgdispidNamedArgs = NULL;/ I$ v! ?! _& e
dp.cNamedArgs = 0; # f! A! ]* Z6 L5 I% ` 3 Z% T1 T: X% q# j. `// Call IDispatch::Invoke(): L w# I5 c8 P$ |1 c/ V6 S
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hr = m_pDisp->Invoke(# a2 E9 ?1 U# {6 `; {. s
pokeID, 2 X% \2 v/ M4 Y7 V6 ` IID_NULL, # ~3 }7 n% B) M5 S' C% b LOCALE_SYSTEM_DEFAULT,2 g9 s0 R& r: [, s
DISPATCH_METHOD,* O! D! u8 }( i2 Q2 M* L7 L
&dp, " C' _( c% K* e, h' i; K NULL, 0 X F% Z/ u2 w P9 C &ei,5 [' e, ~" V" J0 v9 s' B
&uiErr);, w; Y/ x# ~' X8 X
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SysFreeString(topicStr); 2 z0 k/ N5 Y0 _/ s; U/ @* ? SysFreeString(itemStr);6 K$ X# ?+ A- g
SysFreeString(valueStr);7 B `7 j2 d( H; I' N
* p2 S0 ^7 j7 b. ]/ I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??? 8 [' d0 n \, Y. B/ R! V& O* [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???? + O) f2 F. i6 |7 S4 { 2 j+ b, W3 f9 U1 C9 O; ^5 A ' p( ?, S' v) g. Q2 k2.这是request的程序+ r& B: y* [/ o" ]# S
// Request a value from Extend 7 v( N& e: y' S/ S9 x// , `# O$ w6 ]+ A( D. J// Initialize the variant that will hold the BSTR. Set the variant's & B0 x- }/ L3 M9 L// type flag to indicate the fact that this variant holds a BSTR. Place the0 C# k2 Q. {. K W
// BSTR into the variant structure. 0 |" T5 X+ U: n* Z) C6 L* Y* \/ _ `/ V0 _7 ?
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 g( @ S& c h& ]1 \" @) I
& R0 ~; A6 L% L# _7 E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 a4 q& L" { ?( {8 C# X VariantInit(&requestVariant[0]); 5 v8 w8 M* t% P% w, p6 n' t requestVariant[0].vt = VT_BSTR;) @& J7 u5 z {( p) ^
requestVariant[0].bstrVal = itemStr; # X3 y9 h: x8 a0 i" S1 B" z7 K6 _) W r: q2 t3 S1 n, P4 @
topicStr = SysAllocString((WCHAR *) L"system");; s6 C7 J2 V9 E
VariantInit(&requestVariant[1]); $ A. K/ W0 s- P4 K6 S requestVariant[1].vt = VT_BSTR;/ d; ^: @1 c- X; d2 E
requestVariant[1].bstrVal = topicStr; 9 t6 o1 |+ K$ x/ \, n7 Z/ Z5 N% ]- R* f, C
// Set the DISPPARAMS structure that holds the variant. " u+ o8 N& s# Y) b( P) a 5 |* `, v' C# _. X dp2.rgvarg = requestVariant;4 R8 M4 {5 N6 @" b! X; p: H& Q
dp2.cArgs = 2; . S9 j/ V" S/ e2 D dp2.rgdispidNamedArgs = NULL; 0 B6 \( x- w- c! q7 l dp2.cNamedArgs = 0; + [2 e; h( h% [4 Y 8 {7 U! K: `) r. |9 `4 R var.vt = VT_EMPTY;& o' t+ {# ?/ a3 E- k5 ?. I4 i4 W
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// Call IDispatch::Invoke()4 v5 u# e6 u: W; D+ O& Y
' A+ X2 q4 X2 Q0 f) O2 D% n3 C( z hr = m_pDisp->Invoke( ; W! f) b+ w" S: [1 W. M9 w requestID, z9 l1 b6 M' B0 N8 V
IID_NULL,9 m# Z, P7 h6 D& G
LOCALE_SYSTEM_DEFAULT,* t% E1 ?. O+ I$ T+ A
DISPATCH_METHOD,- B' _% s* e+ v/ p4 x5 `: I8 U
&dp2," T% C; V- N" N. m2 b- P P2 `
&var, 3 w, C. p: g/ j &ei,3 V4 v/ h! V# `( a; J3 o3 r- @
&uiErr);) L; c6 t7 c: ?1 a- Q# f
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SysFreeString(topicStr); ( J/ v. Y6 ]+ ~; G9 a SysFreeString(itemStr); . L9 n! K5 h+ Y# G, A/ y请问该程序是获得extend里面的哪个值?. L/ n t6 H) q3 ^) q! X
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????