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:/ V* j# ^2 N; ], h
Name = (WCHAR *) L"Poke"; % K& {% O0 ` f1 `8 S/ C$ e$ } , v2 p8 \3 M3 g) e" H% ?" ~$ O) ` hr = m_pDisp->GetIDsOfNames ( ) a1 v6 h0 a$ k/ E! b8 \7 c IID_NULL, // reserved; E& g" o) }. V. s0 y
&Name, // Array of names to get IDs for" r. y+ Z6 U1 \' w* T# X
1, // # of names in the array4 i8 u' D: b+ _* k$ P1 @. r9 T
LOCALE_SYSTEM_DEFAULT, // System locale J4 o1 \) n) s. e8 P% p! R &pokeID); // Array of IDs to fill on output / W" ~( o9 t% e1 H% p; |! q! l$ m $ V8 X5 S: P5 K. j1 s0 L if (hr) p5 R8 ?" C( G; ]9 d( R! [ {4 | p/ {; ]8 B5 L2 e; m% k- y' ?
MessageBox ("Get Poke Unsuccessful"); 9 Y. _; |4 n- J0 y: m5 t return; o% E) r F- |
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% S$ I* d u/ X( |& p
/**************************传递数据给extend**************************************/& ^( ^! ^8 l- g! L; ^. X
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 [3 [( t, e( X6 M
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valueStr = SysAllocString((WCHAR *) L"1232");2 \! m- C' C1 f. W
VariantInit(&pokeVariant[0]); 8 F* n! J3 N* _5 L/ s# g" P pokeVariant[0].vt = VT_BSTR; ) k( Q% n6 D2 X' S1 g pokeVariant[0].bstrVal = valueStr;: ~: S$ Y5 t& S' O/ F$ q3 W
3 X+ O8 y" h% S3 T2 m0 H; E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 v+ Y+ ?# x- T; A2 } ]- z( H
VariantInit(&pokeVariant[1]); 6 c" Q3 C. C7 |% s0 _' C
pokeVariant[1].vt = VT_BSTR; ) x+ g$ |. X; M+ j5 ]9 c; e pokeVariant[1].bstrVal = itemStr; ; h1 ^6 c0 S3 t1 ~) n$ e! B 6 P& S* S2 i2 U- g topicStr = SysAllocString((WCHAR *) L"system");, g! e2 Z3 U/ K5 w! i; F- Q
VariantInit(&pokeVariant[2]); 6 g7 R7 X: l& \3 K0 P3 Y- f4 N
pokeVariant[2].vt = VT_BSTR;) k0 {0 S# Z% a! `3 |, N9 n
pokeVariant[2].bstrVal = topicStr; - w6 q3 E g) w$ C ; m9 i4 ?8 X# H// Set the DISPPARAMS structure that holds the variant.' e2 Z5 g. U0 U. [! d3 Y+ `1 Y5 h6 |
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dp.rgvarg = pokeVariant; + E M2 J9 H/ i- ~2 G: Y2 N. S dp.cArgs = 3; 7 M8 o3 b2 y i+ x/ q; o$ Y dp.rgdispidNamedArgs = NULL; , a! B4 T3 t9 X6 V$ ]! [ dp.cNamedArgs = 0;) u- L# f8 ]- |& c) A9 w- G
) [3 |; Q/ |. M0 z. W// Call IDispatch::Invoke()1 A4 V, _7 p! ^* b7 H! K
7 g) O) [4 C. ? Y- Z% b hr = m_pDisp->Invoke( " u* A3 Z( u! y: n6 e- `: e/ h pokeID,1 ~' z1 }/ @6 S( _' y3 Z
IID_NULL, V0 q% Z* R1 c6 R$ n3 H$ o
LOCALE_SYSTEM_DEFAULT, I, y; R6 F0 I' L+ S' m
DISPATCH_METHOD, ' ~, d! B Y4 R1 t2 P/ a &dp,$ r4 M) F W4 H. ?1 E D( y! W
NULL," u, F7 ^+ x* U, y
&ei, + U1 A" K% o! x &uiErr); 4 M. m- ?6 ~# X t* o8 R1 z% R9 W7 ^$ `
SysFreeString(topicStr);( ]* O p! E& x0 J7 t3 ?) Z H2 K
SysFreeString(itemStr);8 w3 H2 [- U. ~9 p
SysFreeString(valueStr); * R' B/ ]6 r& c. W! H: Y4 P2 X. Z, b5 }; B$ J
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??? " a) |* K B9 P, M6 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????8 d0 M' p5 H) r* {
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2.这是request的程序$ Z5 |* I8 G" O
// Request a value from Extend* {0 H8 g- Z2 ~6 H6 j6 }; p
// ' b- u6 s' |9 v4 y// Initialize the variant that will hold the BSTR. Set the variant's g C" E- X" M3 i% U9 C- U2 t; o// type flag to indicate the fact that this variant holds a BSTR. Place the9 |! `& T- v: c; I
// BSTR into the variant structure.) u# O7 r' n8 D9 [1 v
$ y/ L8 W1 S9 [: |! l6 K requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' I# f: m. K' }. v * Y4 q- r0 G: B4 k' J) U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; ~% _8 ~0 v! W9 z* h$ Z$ J VariantInit(&requestVariant[0]); ) I4 p" w4 j% S requestVariant[0].vt = VT_BSTR;) }. K+ ~; _$ U0 L' n
requestVariant[0].bstrVal = itemStr;$ D+ C5 n) \3 U" _