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:. h$ u# c* d1 p( _* e
Name = (WCHAR *) L"Poke";9 O2 S- c$ I/ i8 L
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hr = m_pDisp->GetIDsOfNames (9 [0 q4 L+ n( w0 L5 C y Y
IID_NULL, // reserved p$ ?& Q9 g, F( l &Name, // Array of names to get IDs for # X( o6 U; w* F( A 1, // # of names in the array ; y, g* y$ C7 r3 u3 T4 h3 m LOCALE_SYSTEM_DEFAULT, // System locale 3 A2 \ P4 Q* X' i: l3 ~ &pokeID); // Array of IDs to fill on output& I! k P; i( j' c) `1 n
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if (hr) * S/ _9 F1 f& j m; j { + h' D6 `" ~, v, S1 v; ` MessageBox ("Get Poke Unsuccessful"); ; @* g2 P4 Z. u: n. r [$ b6 u return;3 Q2 h8 L8 `; s: B( _0 w
} , C5 d; v# O, O) s! L/ ]# C9 T1 z 4 w1 M% @5 r7 v- M3 h. _/**************************传递数据给extend**************************************/0 ]+ E h2 c+ d- D+ [) `9 `# L/ g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 |% W' i. p3 g; m6 P3 i . O8 R. J* d2 M: \ valueStr = SysAllocString((WCHAR *) L"1232"); & L, B- S0 K% w) ^' ~! V VariantInit(&pokeVariant[0]); 1 D. J& Q9 Y8 H pokeVariant[0].vt = VT_BSTR; . X7 \3 P. e& W8 h" E3 _7 t pokeVariant[0].bstrVal = valueStr;7 S( j5 F, `/ z* H
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 Q5 q% O% q' Q! w- Y9 B; [4 T
VariantInit(&pokeVariant[1]); ' f4 k6 o" Q/ @. B pokeVariant[1].vt = VT_BSTR; 8 t% t* W* V1 Q! z t7 {3 r s7 A, V% b pokeVariant[1].bstrVal = itemStr;6 W# D2 _5 K" w$ F9 y& y9 b. _4 B
# Z/ x" Y+ Q* U d! }# Q2 I- p u4 e topicStr = SysAllocString((WCHAR *) L"system");9 ?% a' a2 k5 A: q/ c
VariantInit(&pokeVariant[2]); + L# O* O8 i% O" v- f pokeVariant[2].vt = VT_BSTR;% m1 @8 C: V3 k4 H0 r; \
pokeVariant[2].bstrVal = topicStr;1 e, q2 x+ H j# ?, i
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// Set the DISPPARAMS structure that holds the variant. 2 a& ~4 l; y! ?4 `/ |* f- `8 } E, C5 [( c9 |1 J- w3 ]. ` dp.rgvarg = pokeVariant;+ t9 W2 x4 | K2 P6 o. s
dp.cArgs = 3;1 m# p3 f, b @" e
dp.rgdispidNamedArgs = NULL; # [+ B d7 G- A" R dp.cNamedArgs = 0;; r& O, ~; R5 D6 {8 Y
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// Call IDispatch::Invoke() 5 |- g( m+ g4 a) Q 9 _7 C E4 E2 w# V9 A hr = m_pDisp->Invoke( ) B. O+ |# y3 b pokeID, ( A$ m8 H, q/ f6 G! b7 p IID_NULL, * Q% I& L, g" J" t9 |' G/ k5 I LOCALE_SYSTEM_DEFAULT, ! ?# C# |9 Q3 ^: m7 r: D DISPATCH_METHOD,, w7 z9 T. E# o7 N
&dp,: t- B' @8 j/ t) j$ M) ~# u
NULL,/ R! i! ~. @! @3 @
&ei, # m$ C- Y( a4 u* n &uiErr); : Z6 G+ J( b1 e$ ], y5 `9 d1 D% }; F; p' I- w/ P" v' W4 B
SysFreeString(topicStr);8 ^! X- b w# g1 `. z
SysFreeString(itemStr);2 J7 P. e; d1 F
SysFreeString(valueStr); ; v2 i8 W& N7 T a8 j; e+ I + r: G+ K' z1 G! _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???0 M& k2 O7 u3 f' Q# G# S; V
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????9 Q( e W% _. W0 }
( f+ K# W! ~5 ?5 Z Z7 n ! y2 A3 l7 g/ z8 P- ?4 g$ a* N2.这是request的程序 + k/ s3 r: H9 u F. D c// Request a value from Extend7 G1 o/ D. Q: r" u
// ! M3 z5 I M/ D9 @// Initialize the variant that will hold the BSTR. Set the variant's& W, F8 ~2 s( I6 \ {+ @+ Z
// type flag to indicate the fact that this variant holds a BSTR. Place the ! j1 x5 |, d" b, ]// BSTR into the variant structure. 6 r* e/ ^- s9 A9 ?9 u7 H* b C+ B& w$ r, z" u; G6 _: r0 W: n; L9 G
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 O* b/ P1 h7 |$ |1 A, ]7 Y- t
! J0 f' r( w8 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ]) p8 B, r- v; x VariantInit(&requestVariant[0]); & y x7 g o& m! u requestVariant[0].vt = VT_BSTR;$ @) i9 K8 W) O4 \# i% L6 @
requestVariant[0].bstrVal = itemStr; / P4 Y m2 D2 N9 e; N) ? : d ]: g/ [3 X; O4 H6 ]. G& A# } topicStr = SysAllocString((WCHAR *) L"system"); 2 ]8 d2 I! s L. H2 b6 e VariantInit(&requestVariant[1]); : r5 q# |# F K+ ~" [# M, ]3 ] requestVariant[1].vt = VT_BSTR;. g9 B2 S1 O5 C
requestVariant[1].bstrVal = topicStr; 5 l3 W5 V6 e; d4 Q: {5 a . E# d' _" K$ e7 G: I// Set the DISPPARAMS structure that holds the variant.. ~ b' o, Y- \# X' p. i, a+ r