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# T; v9 b& ]
Name = (WCHAR *) L"Poke";/ e, L2 h$ D6 q
7 K0 t q8 G) V6 ]; X hr = m_pDisp->GetIDsOfNames ( " H8 u7 O$ H+ U( q8 A% N1 J3 Z; G IID_NULL, // reserved) q# w( b4 U) t2 L" E
&Name, // Array of names to get IDs for 7 Z5 v9 k' R7 g1 y 1, // # of names in the array # x' _+ M* q, T/ s5 u LOCALE_SYSTEM_DEFAULT, // System locale% ^5 M/ h3 _7 U; {
&pokeID); // Array of IDs to fill on output2 O: S! X* \5 s2 V& x. b! e7 K
3 Y( P, I: b3 i0 d$ b if (hr) 6 K7 y% B; M* L+ A! y7 F. S# F {: C) N6 x9 F5 t: z$ f+ F
MessageBox ("Get Poke Unsuccessful"); # L. T& Q) ?. s7 Q return;8 K4 k! X# X# N& v; }. `) S
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, |; h3 o1 `* @) W/**************************传递数据给extend**************************************/7 `( Z9 ~# g4 S J, \1 \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % k* D( |7 [2 v/ c! ^$ y 2 b0 u4 g0 c! ^* L s valueStr = SysAllocString((WCHAR *) L"1232");! s9 p1 W3 r8 Q f
VariantInit(&pokeVariant[0]); " I3 n6 v! d, a# a) u9 S
pokeVariant[0].vt = VT_BSTR;6 _0 Q4 b/ K: t4 S
pokeVariant[0].bstrVal = valueStr;0 p! r0 B) t x$ n% _9 U
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( n$ v: O0 Q6 P1 |
VariantInit(&pokeVariant[1]); ; E" A4 M5 g/ N# R0 H) N
pokeVariant[1].vt = VT_BSTR; 4 h; A2 I# I4 A4 T. e0 z pokeVariant[1].bstrVal = itemStr; - ?. b `! U, [. ?/ B0 x9 X5 T/ K" Z, `' \# j! u; q' H
topicStr = SysAllocString((WCHAR *) L"system"); ' s0 ?: r0 K4 r s5 G! h" f2 @/ E VariantInit(&pokeVariant[2]); 4 J( x: k# ^6 A) w6 ] pokeVariant[2].vt = VT_BSTR; + g3 Z4 a( _" y& p pokeVariant[2].bstrVal = topicStr; ' o* Y: q; e0 F, R# H; ?* h2 |2 b% X8 F2 h! G( `
// Set the DISPPARAMS structure that holds the variant.& f0 T+ U2 Y: s) Y' L9 t. {3 u
" `& I$ a) k- y/ A Z B3 { dp.rgvarg = pokeVariant;4 X, m( `4 V( r# d
dp.cArgs = 3;7 R1 W- ~0 y, a' p( b
dp.rgdispidNamedArgs = NULL; g+ F8 C5 e& S$ b$ `4 n dp.cNamedArgs = 0;+ L- Y6 ^( f% r+ p- r7 F
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// Call IDispatch::Invoke() ' I& e5 }. ? l2 H1 k$ w6 g: L" M 8 x0 y* W- Z H% l2 S+ | k4 d hr = m_pDisp->Invoke(" C( L, X; F( |! c& b$ A* K
pokeID, * ~9 V8 Q0 g* ^% w3 o+ ~ IID_NULL,0 h" r6 }. w5 `' C Z6 F( y
LOCALE_SYSTEM_DEFAULT,5 H: D% e) |0 }% g( m' R1 J* y B6 |
DISPATCH_METHOD,+ [: ?) P5 E' E
&dp, 7 r6 u3 a( L: G2 H% W; z, P1 x R NULL,! j8 M" @6 B* @; A
&ei,# ~) X4 J R3 O5 A# J4 P6 I
&uiErr); 3 r7 Y+ o: x. B$ J3 Y/ | d$ ~- w2 v, X% ~8 v8 D SysFreeString(topicStr);4 m& D# M, w$ z- B/ m5 M$ ~4 J
SysFreeString(itemStr);4 P9 `, b) Q# \& e1 z' [ ~
SysFreeString(valueStr);( \7 e1 @' |7 B4 n8 m$ b
1 {# P% H7 ]5 D+ o: q$ Q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??? 7 o8 [2 i" ~7 \, n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???? W, |8 m1 c# b
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2.这是request的程序 / z& m; C. w+ G6 N8 V" ~// Request a value from Extend0 g: ?% G' K2 ?3 Q3 c* V$ G/ w
// 1 P$ _& `; \& p. z& x// Initialize the variant that will hold the BSTR. Set the variant's j" }% h$ w1 R% w
// type flag to indicate the fact that this variant holds a BSTR. Place the$ k' Z( q! S: K5 b$ Y* T
// BSTR into the variant structure.- P3 I- r) ^6 `7 A D' W
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; f6 c8 I- T, E% `- a" U1 w& V" @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) W; L$ `1 m3 m1 g VariantInit(&requestVariant[0]); 7 J& D3 }% h+ p$ }
requestVariant[0].vt = VT_BSTR; 3 t& V# F; o7 ]( g" z requestVariant[0].bstrVal = itemStr; $ L9 Q* B! r/ \2 T" i , S; o4 c- l/ N- u6 ?( D% ~) K topicStr = SysAllocString((WCHAR *) L"system");" z3 @! M, N0 p @- B R# `
VariantInit(&requestVariant[1]); ) H1 N" l- Z; ^
requestVariant[1].vt = VT_BSTR;& [4 A$ ?2 i* m/ }) o1 U6 L$ @
requestVariant[1].bstrVal = topicStr;3 H" w' @9 W2 z# O# K+ D& h1 e
0 h9 i2 N$ j; k* t1 J// Set the DISPPARAMS structure that holds the variant.! ]6 ?2 y- {* g! J
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dp2.rgvarg = requestVariant; + E$ |& l) I+ I$ B3 e dp2.cArgs = 2; 8 a; t, c# t4 t0 i) u dp2.rgdispidNamedArgs = NULL;" M- R6 O, S: S5 ?6 T9 M6 b! r7 U
dp2.cNamedArgs = 0; ( f9 C( ?) }) ^ - t+ P; g5 K4 ]* y: Q0 @5 z var.vt = VT_EMPTY; $ _7 p, R/ D0 k8 j ; |* E" z! n- W// Call IDispatch::Invoke() 5 V. _# Z; L% S4 L/ p. l/ s ' `$ N& }- H) d5 c% y7 B2 m% I hr = m_pDisp->Invoke( & r# f6 C4 f5 R+ G1 V requestID,* J2 @+ l- ]5 p% w
IID_NULL, $ M, \) V( N3 x3 u LOCALE_SYSTEM_DEFAULT,, U( U' n/ e0 F
DISPATCH_METHOD,. d% T9 q# P+ j5 x* x' h
&dp2,9 [& k/ D% L! F( C# C- K5 C# m& d& B
&var," c5 t' _) P( h6 s) `) V% c' g8 {
&ei, . w7 d l2 x' C# U0 S &uiErr); # b4 x( [1 a, ]7 _8 n0 {0 p4 F7 p9 B" N4 L9 n& D
SysFreeString(topicStr); 9 j0 h, H5 K. M o& b SysFreeString(itemStr); - ~6 c, J( i0 ^! c请问该程序是获得extend里面的哪个值?* G; W" t" N/ J( Q A ^" i
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????