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: $ e) C+ k! v5 P3 y, fName = (WCHAR *) L"Poke"; }; m( d' b+ m. @
1 X7 B f( }9 x( i; k: H hr = m_pDisp->GetIDsOfNames ( 4 d% y7 H* X0 Z5 E IID_NULL, // reserved $ @9 K6 {% Z: ^# \ &Name, // Array of names to get IDs for- Y- u& R7 y0 [5 O* b, z p/ R7 D2 P* b
1, // # of names in the array% v p+ b* ?4 F
LOCALE_SYSTEM_DEFAULT, // System locale6 b! u, r1 G" o7 H6 z. u
&pokeID); // Array of IDs to fill on output( h r2 O2 j$ s- x
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if (hr) : G. g% |" H) n0 q' d e2 \ { / Q% C$ H% m9 i. C+ { MessageBox ("Get Poke Unsuccessful");, O, Z- g# L1 u/ w) Q7 p
return;* W, Q( n; J4 \4 o+ ]
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4 f! F" Z* O9 b/ |% U/**************************传递数据给extend**************************************/! E- J7 h% W) ~5 a+ ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 Z3 F7 _% h8 z ; b2 ?/ v8 |9 j5 j9 ] valueStr = SysAllocString((WCHAR *) L"1232"); / ^- [4 p, C6 O" L* Q) \# Y VariantInit(&pokeVariant[0]); ; w/ |* y: G! {' Z pokeVariant[0].vt = VT_BSTR; ) }1 u! N" f$ K) ^- | pokeVariant[0].bstrVal = valueStr; 8 `3 `% H O2 _' w. z; W$ m! L + O4 C3 q' D5 d9 O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( D4 o2 o3 F& F8 Y5 l) i) s" Z- v VariantInit(&pokeVariant[1]); 2 C7 g% f" i+ Z. G4 ? pokeVariant[1].vt = VT_BSTR; 4 D2 t# Q% b2 v, N' s5 ]7 R o4 c pokeVariant[1].bstrVal = itemStr;4 k! g' m; M) u4 ?9 k
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topicStr = SysAllocString((WCHAR *) L"system");# r/ S l# ?5 B
VariantInit(&pokeVariant[2]); " o, k; b5 z. c+ W: U: F( | pokeVariant[2].vt = VT_BSTR;- w; @* o5 }+ d# i& s- t0 N
pokeVariant[2].bstrVal = topicStr; ( Z, u2 K; q' ~3 }9 d7 }/ P& C8 F/ q ) s* f# J( J) X% Z2 z! k0 u// Set the DISPPARAMS structure that holds the variant. ! `4 ?0 P7 }; I, W 6 ^$ K" @2 P d9 Z dp.rgvarg = pokeVariant;8 D/ D; s& K/ p z
dp.cArgs = 3; 8 ^8 d1 V, C" r* E2 \ dp.rgdispidNamedArgs = NULL; ' D) f0 g9 u# ^" D3 I dp.cNamedArgs = 0;) Y8 ?) h" P2 ]
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// Call IDispatch::Invoke(): O1 v( F2 _! c2 P0 y
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hr = m_pDisp->Invoke(' `) S. z! ^! ~+ a, G# w, C+ ~! Z
pokeID,5 B, k9 y2 a3 n
IID_NULL, ; k% [9 n2 ~. A" } LOCALE_SYSTEM_DEFAULT, 0 ^ F2 ?" `2 g% A8 z DISPATCH_METHOD, 3 x& P9 V* ^7 U0 K &dp, 2 j6 I k; d: P. G% A a* M# } NULL, / R4 a, d C3 w9 u0 R0 g+ M( X &ei,& s A3 E( s9 a7 k$ d
&uiErr);" B8 L* v% V% J& |+ G9 A
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SysFreeString(topicStr);+ {3 K j- {3 X4 h' o3 {/ y
SysFreeString(itemStr);, k+ G' g$ |# L4 u7 U/ m$ w5 q; F
SysFreeString(valueStr); . _! N2 o. ~6 O& m) C6 ^5 C6 T6 l+ u) ~3 {8 J0 p
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??? 5 b5 Q8 W1 U5 u' I% X% Q# \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????8 N- q2 O: `4 |$ X. }8 J4 I
( O# u& [0 \' u: d* C6 g d& [ 2 J, I0 n! B/ H2.这是request的程序7 B- Q, \; M: Z/ M! P
// Request a value from Extend . E6 U" {5 q6 r2 |& R8 j//6 W9 U, p" E5 w" P: O& ?; f" Z o
// Initialize the variant that will hold the BSTR. Set the variant's 8 f9 u0 Z1 Z3 e+ {// type flag to indicate the fact that this variant holds a BSTR. Place the4 T3 I8 B- o, v6 P; q5 C7 L) a, ^
// BSTR into the variant structure. " G" @4 ~! J* D; t% f. P" F- x 2 K/ M3 w6 r# Q5 R8 B requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 V, g U- K/ a0 V2 g ( F% Y& c$ j/ O0 i B0 ]0 C1 I7 y# x
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # }- m+ e3 q P. e8 L: G VariantInit(&requestVariant[0]); & s; ~' e' o9 ^ requestVariant[0].vt = VT_BSTR;2 c1 U' P' @, O1 k' M2 R
requestVariant[0].bstrVal = itemStr; 0 b" N3 B+ T5 ~) `. I+ Y# Y. B1 R& W: m3 F$ H6 Y! r3 o2 `
topicStr = SysAllocString((WCHAR *) L"system"); 4 k6 Z: Q8 f: V: q2 |2 P% Q( M& B5 J VariantInit(&requestVariant[1]); ) X3 k7 X- ?" ~) [8 V requestVariant[1].vt = VT_BSTR; ( J# X# s: ]1 c C& h requestVariant[1].bstrVal = topicStr; 6 Z0 Y8 K' K$ X7 K; d1 A$ A5 G: k6 H8 V$ l, _
// Set the DISPPARAMS structure that holds the variant. Z" Z8 S/ l7 T2 m- ~5 f
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dp2.rgvarg = requestVariant;) Y& Z U0 d& Y" Q+ [$ |
dp2.cArgs = 2;+ b& \0 K1 B4 q% _
dp2.rgdispidNamedArgs = NULL; / U3 E/ O+ k( f4 }8 X4 d2 x4 o dp2.cNamedArgs = 0;1 v/ R6 w; f$ @* w3 m' K
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var.vt = VT_EMPTY; 8 s( W. @5 a7 v6 J! P. t : j' ~7 ^1 M! ~3 c// Call IDispatch::Invoke()' V0 h( B0 W) R
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hr = m_pDisp->Invoke(9 I7 B. J& r" W
requestID, . ?9 S$ ~9 F8 n) I5 @ IID_NULL,8 ^0 c; m4 h3 o, R
LOCALE_SYSTEM_DEFAULT, V- n3 X3 [4 g& j DISPATCH_METHOD, * [* Y9 b3 C9 y# A8 B( e" C7 e$ w &dp2,6 t' V2 _2 Y3 Z3 h! e9 E8 _
&var,6 M. y6 r+ N9 k% E; d( \8 U& |
&ei, # K: i" W( k+ s* ~3 k U) ^ &uiErr);: F7 F: A* }( n7 u/ N* r
" F6 I2 T2 s( @& ]. y& A4 R SysFreeString(topicStr); ; @7 D/ {9 Q8 T8 l SysFreeString(itemStr); 0 \% ^5 _' g2 j7 M, s8 d# R8 |( r请问该程序是获得extend里面的哪个值?; j7 X/ f8 ]$ a
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????