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:: x3 d* I4 Q" T8 ^
Name = (WCHAR *) L"Poke";/ \, a6 A8 [5 i5 a
& |- T) u1 [4 A0 Z hr = m_pDisp->GetIDsOfNames ( 2 C7 u2 |# `9 p$ v' [1 R: W/ L IID_NULL, // reserved0 H7 U/ r/ X% m7 o
&Name, // Array of names to get IDs for7 @& v# W3 e% @- a8 @' n
1, // # of names in the array$ M8 z! v7 g1 u
LOCALE_SYSTEM_DEFAULT, // System locale 0 y$ C2 Z7 [+ p& A5 v5 r &pokeID); // Array of IDs to fill on output) x( p+ h5 d/ V* l, |. T( C
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if (hr) * p o- {* x% n, } {9 I( N% }. W( p- a
MessageBox ("Get Poke Unsuccessful"); % f g( J; L( X/ `' @- s return;5 N) y( h- M1 B, `' y9 _5 s
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) E: _, y' @; T g/ P5 U) V/**************************传递数据给extend**************************************/ Y* a* \2 h8 q0 a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 0 G: M! d9 u) w7 z* c / {0 G8 B* {& q3 k valueStr = SysAllocString((WCHAR *) L"1232");! o$ H' V% p. z9 p
VariantInit(&pokeVariant[0]); ! ?- t+ M& r: o* i) I8 W/ L: @. P
pokeVariant[0].vt = VT_BSTR;- n7 w. g0 h$ O4 Z5 a! q
pokeVariant[0].bstrVal = valueStr; 6 H7 \3 h. h( Q y7 E6 { 2 s, l" |6 ]' _: i8 M- {+ M+ ^$ j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! T/ ~8 E' c6 V' } VariantInit(&pokeVariant[1]); + F. C2 m. k7 u% _; t
pokeVariant[1].vt = VT_BSTR;9 P' p) ]; ~7 x9 Y; r
pokeVariant[1].bstrVal = itemStr;2 p; k. n8 r6 C% \
! ?, e* Y* y; r9 k7 C' I$ ~ topicStr = SysAllocString((WCHAR *) L"system"); ; b! Y9 n* k [ VariantInit(&pokeVariant[2]); ! o6 x* F+ U, ^% z# G
pokeVariant[2].vt = VT_BSTR;; `1 K& k. |3 o* z L; \& @4 a' J
pokeVariant[2].bstrVal = topicStr;- f" j% f2 Q w! r
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// Set the DISPPARAMS structure that holds the variant. - l$ ?+ x" x& |! r" R" _: Q$ R 0 l/ ^8 \/ p z1 V% j dp.rgvarg = pokeVariant;. {+ y% d: O3 N1 ^
dp.cArgs = 3;5 [! U, A5 w8 {4 b
dp.rgdispidNamedArgs = NULL;7 n; J9 l7 {1 K6 @( D& r) ^
dp.cNamedArgs = 0;* e9 y% ^, j- E: F! E
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// Call IDispatch::Invoke(). H& U2 n. T# i- c
: U6 |/ T1 F1 }* o7 r7 ? hr = m_pDisp->Invoke(( J5 P ~3 E) t% E- V
pokeID, 5 E- P8 z7 f0 D' c- ?4 r IID_NULL,: n* |- C% s9 X, w* n W
LOCALE_SYSTEM_DEFAULT, - N5 F; V) ?& e DISPATCH_METHOD,( W' ]; A( d2 ^* R
&dp,. C) v3 v/ D/ B( @* |. W! Z
NULL,7 t# ~6 a. _( a' C5 r& q
&ei, 8 W- @0 X9 f$ {% A &uiErr);% M& p! h* D3 ^7 A0 j" P/ C3 A. K
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SysFreeString(topicStr);& m2 X: R0 t7 N4 g
SysFreeString(itemStr); , m/ B7 W' N! t( h% x: I% p SysFreeString(valueStr); 7 G9 M5 ?! D. c2 V 3 ?( H: G1 V/ r8 K) w- N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??? & k% _9 a5 W* ~) b5 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????& `7 N" D/ w: f
# r+ g K& A: q% Y . W/ h( p8 A' F/ o( s1 f! Y2.这是request的程序 . n9 S) q+ @ X; d// Request a value from Extend 8 P6 v; i* y; n// : F. |- Z6 w/ K/ _( F# |3 L, y/ J5 j// Initialize the variant that will hold the BSTR. Set the variant's- i4 I1 J; Y5 k
// type flag to indicate the fact that this variant holds a BSTR. Place the6 j: p$ Y, |# D& P, Y: i
// BSTR into the variant structure./ s3 U; N6 p4 U9 b H9 k" J
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 E. s* S2 H. Q" U+ d2 o 7 f: O% X9 G+ Z) p3 O4 `7 v ]
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* Y6 e/ Y) H% J5 s* r# P
VariantInit(&requestVariant[0]); + p$ V1 C* L3 W7 m$ g; t% D
requestVariant[0].vt = VT_BSTR; * x4 F1 \) d. K# J5 o requestVariant[0].bstrVal = itemStr;" L" J$ Q/ B5 T9 P; d1 z