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:8 I$ s4 n. i" O+ ~6 `3 s. V6 }3 J
Name = (WCHAR *) L"Poke";* ?' [& z; C' z. T
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hr = m_pDisp->GetIDsOfNames ( ' `3 W* j4 i3 W+ j8 ]" ] IID_NULL, // reserved - F V% Q9 o7 }5 R/ d$ E5 K &Name, // Array of names to get IDs for0 h* a9 }! R) g# F3 k" `9 h! w; C
1, // # of names in the array0 k* R, H% K( J1 E4 Z/ L+ R
LOCALE_SYSTEM_DEFAULT, // System locale% C4 ~' \, w2 e4 u$ Y' P
&pokeID); // Array of IDs to fill on output y, y8 a1 ^$ m! F
" q7 v L; }2 z0 D" } if (hr)! h, u+ e* T1 ~! n3 D1 b6 @$ F
{ 1 `; M9 ^. f; ]2 a. G, X MessageBox ("Get Poke Unsuccessful");* U& p3 U+ I4 N: X/ `3 K" o3 ~
return; ! ^ K- R0 y, P1 S } z; o, A( j! }$ W( g+ w/ B/ E/ B6 N3 F& \1 E+ q
/**************************传递数据给extend**************************************/# n6 g9 [" N* b! U' u- N
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . E5 b [# g' M$ |' d* A. K " E O7 F3 z: [6 k% G3 P/ E' c1 {
valueStr = SysAllocString((WCHAR *) L"1232"); : Y& c4 t% T6 Q' h+ W VariantInit(&pokeVariant[0]); 0 I# _3 r! J' v7 M pokeVariant[0].vt = VT_BSTR; ; R2 D F; f0 z pokeVariant[0].bstrVal = valueStr; * M* P$ J, J6 b3 D0 g/ P; ?, P , h' |( G" m* j/ O2 y/ ?! n [6 X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! ^3 Y4 Z$ _4 h9 F8 `( ~" E: w' J7 [
VariantInit(&pokeVariant[1]); + q5 |* j: A$ |/ u: \- A
pokeVariant[1].vt = VT_BSTR;' N- d q2 h( Q9 T
pokeVariant[1].bstrVal = itemStr;5 u. r, A7 @ a2 b* x
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topicStr = SysAllocString((WCHAR *) L"system");' _/ u7 N5 p+ w+ @. _: Y! T
VariantInit(&pokeVariant[2]); 1 f% I1 U0 @) ^! Z9 k: g pokeVariant[2].vt = VT_BSTR; * Z6 Q! g! p2 M& N5 [; v3 K' A pokeVariant[2].bstrVal = topicStr; % ?, B: p6 J# @. H " Y) Y' r) _! h; o9 o* V( K// Set the DISPPARAMS structure that holds the variant./ ?4 x2 K9 q% S, q9 Q! g0 W* _7 y
4 o3 B; @9 a% P0 _: a dp.rgvarg = pokeVariant;7 Y9 N0 u" G2 D) r G
dp.cArgs = 3;' I m* A, Y! i
dp.rgdispidNamedArgs = NULL;+ w9 N) ]5 M1 y2 V; f. q7 Y
dp.cNamedArgs = 0;# |7 A u* m* p3 ?
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// Call IDispatch::Invoke()/ z5 ?$ W1 Q4 s/ L( X4 h+ A) `
3 \2 ?* L0 s' r, [6 t) J/ C hr = m_pDisp->Invoke( # {$ E1 n4 [/ X4 _* K7 ^ pokeID, * D$ n- c6 F1 t1 ] IID_NULL,1 v8 O5 V* e1 ^
LOCALE_SYSTEM_DEFAULT,3 C8 `1 y! c! J# o: Y& O
DISPATCH_METHOD, + u: G, Q4 C# Q. L/ z; H, A# W &dp, 9 K% e2 Y) m H; N1 H% B; V( S NULL,5 e4 j$ s6 n( t8 C6 S6 x
&ei, 2 {' x4 U( L, _ &uiErr);' L1 c [) w- @: q; w
1 J) d& o) \8 S' h/ \7 Q SysFreeString(topicStr); W# {& I8 _6 g$ d4 x- I3 s
SysFreeString(itemStr); + [4 u2 C- `, ]" |; `* V SysFreeString(valueStr); 8 y5 C' B1 d9 e5 n, r; m- U! X( [, K# N% 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??? 1 r3 X* p+ g6 g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 R* w6 j; I4 D: }! T2 T; Q! p' l- r' b0 K$ `& u+ I# n$ ~
7 k8 j* B: q+ H/ a2.这是request的程序 4 s2 o( E/ h/ w// Request a value from Extend 2 M" z. z: H- k. s" @2 W: M// " F: ^) R: y# j7 `// Initialize the variant that will hold the BSTR. Set the variant's 8 k9 `$ {! Z, H) R: w5 U: v# M// type flag to indicate the fact that this variant holds a BSTR. Place the , j5 ^5 j5 }5 r V$ I// BSTR into the variant structure.2 u; q6 h( O' F
8 I$ k7 P0 w- t* ~3 F# }3 S6 ]- U// Set the DISPPARAMS structure that holds the variant. ; h& `2 [% N' \7 Q5 m . i: m* n! ^+ S, k dp2.rgvarg = requestVariant; : ~$ R1 v- W" n9 X n! T dp2.cArgs = 2; 9 I5 ]4 S+ t- I- [% E1 R, K dp2.rgdispidNamedArgs = NULL; # w5 z/ K: ]8 a; Z7 V# S dp2.cNamedArgs = 0; - @+ s |1 A2 x) v: h, x+ | * p% M8 @' t7 A& n7 J var.vt = VT_EMPTY;! _& l! P4 d. k5 m q. U
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// Call IDispatch::Invoke()2 O) f7 ^4 U5 w6 n# _
6 V7 ], A, U) s3 V5 ]. e4 T* x hr = m_pDisp->Invoke( . L% |6 j3 `: t2 f( U, i1 V requestID,5 U# Z6 ~! p+ O, R
IID_NULL, 4 `$ n' T' j7 H% G LOCALE_SYSTEM_DEFAULT, : M2 C) `% \; r& f DISPATCH_METHOD, ( L ?3 |# v2 n0 {0 E &dp2, * r2 `& h2 m( W! R &var,& y# i1 a9 {/ Q4 r! h' g
&ei, 6 e O! O7 q. j2 c0 e, T( [- Y &uiErr); ' }" s( y s. k/ z# W. W 8 J0 N8 Y$ T4 F; m6 d- ]: U SysFreeString(topicStr);/ ~. V& f c, I/ j3 o" V
SysFreeString(itemStr);( k: ~' ~% i& N( n: m5 s
请问该程序是获得extend里面的哪个值?3 R( o& H. Z: z) d) z
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????