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:& n1 _3 p' n# n0 h$ t
Name = (WCHAR *) L"Poke"; / ?0 P+ ?, u+ Y( ^: v3 e ; d" o: \; _" w) I1 Y
hr = m_pDisp->GetIDsOfNames ( 6 F+ J; X' o7 N5 {# r( H. Y IID_NULL, // reserved % x7 E% m. o) g$ c &Name, // Array of names to get IDs for # h2 i+ u7 i& w& u 1, // # of names in the array ) T1 n: M; z" u) t: H8 {: ?. J LOCALE_SYSTEM_DEFAULT, // System locale, {" h; G: X6 h0 @
&pokeID); // Array of IDs to fill on output, X3 d/ o- d1 P: \4 `; u/ L, D- H
- T* E3 p6 @, k2 B- c; B if (hr) * _1 ~2 w* m4 O- u { " S6 e' Z/ g# L6 w _# y2 d! S, a MessageBox ("Get Poke Unsuccessful"); V7 ]* e6 S; H7 F return;& \: e+ q d2 T: }6 P' {
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/**************************传递数据给extend**************************************/$ w0 `; j. T z' O5 {/ F/ s1 p
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 U$ c | L: z8 q5 U: t( H
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valueStr = SysAllocString((WCHAR *) L"1232"); , j* g0 Q% A' K. ]8 }- p: K VariantInit(&pokeVariant[0]); 3 y, T( g' @' J4 C
pokeVariant[0].vt = VT_BSTR; 2 _) u6 }' N3 {* y; A C4 i4 i$ [ pokeVariant[0].bstrVal = valueStr;" U/ r l2 K) J3 Y6 q! _; Z8 S' n D
9 q/ @$ _2 A4 v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 T+ i* F6 `7 Y, M0 t6 Y) B+ r, G VariantInit(&pokeVariant[1]); & C, n: L9 O$ b, Z; N pokeVariant[1].vt = VT_BSTR;) v" Z3 t1 x! D: N; {/ g& H
pokeVariant[1].bstrVal = itemStr; 9 N1 H: Y! J3 i$ O/ E* j/ D: X X/ ^* D/ ]0 b
topicStr = SysAllocString((WCHAR *) L"system");+ E. v' m; U# A+ U) _4 m4 E
VariantInit(&pokeVariant[2]); : ]* }& L/ H' w/ E pokeVariant[2].vt = VT_BSTR;) [4 u f ^0 Y
pokeVariant[2].bstrVal = topicStr;3 W/ o% q" ^: N; n
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// Set the DISPPARAMS structure that holds the variant.$ P" T! N/ F: S& E% U
& C& w8 D. Y8 {; r dp.rgvarg = pokeVariant; 2 m& A# l O0 F; ]$ n) h dp.cArgs = 3; 0 C, Z8 p! o8 D, D8 ` @6 E3 r4 v: U dp.rgdispidNamedArgs = NULL;$ Y# R1 T! j) R; x* c5 K) I
dp.cNamedArgs = 0; ; C2 e! r3 i9 u) f- b ' Q8 a3 j! T/ n/ o// Call IDispatch::Invoke() 7 u. g: l+ P7 R/ P" `2 l+ c) O. i, f$ y9 K+ R' i5 W$ C( |
hr = m_pDisp->Invoke(9 Z$ l& G! M- w( E, @$ y
pokeID,. M; h8 S1 N- J
IID_NULL, $ A; h. [4 V: |/ g LOCALE_SYSTEM_DEFAULT, & V" K; j* K2 o4 {% }2 U DISPATCH_METHOD, 7 p! I( y. Q$ G4 r' p' n4 U &dp,: D- I# c# e( E$ S
NULL,$ _8 G2 t( _+ S5 X2 m( V
&ei, 6 }2 }/ ~$ E/ d; ]! u &uiErr); 8 L# _ t2 N, Y2 y- t! v+ {$ B, P0 e& v* z$ \: q
SysFreeString(topicStr);9 A. B2 X; J. j) k
SysFreeString(itemStr); + T3 u& C9 C6 b, O SysFreeString(valueStr); 7 `( F; q5 n) i. s" N 4 V/ w' b9 L& T) e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???$ \ i7 R9 I. ?/ }# X4 U1 u: X M
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???? 4 {, U# ~4 c7 @6 y , k" Y/ Y L* I. E# u% J4 i4 k" b& @2 K% o1 ?
2.这是request的程序 L; {; y; u4 K) [! R# l$ a// Request a value from Extend3 W4 s# t2 g: V+ Y! J8 O U( k
// `/ E$ R5 j9 j# J* q6 c// Initialize the variant that will hold the BSTR. Set the variant's4 q* Y1 z$ N: X
// type flag to indicate the fact that this variant holds a BSTR. Place the* b+ W& @" ~; U8 U( i; b; k
// BSTR into the variant structure.( G3 E% a/ K! T5 T2 n" t