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:$ Z/ H& x: @/ R: }3 C
Name = (WCHAR *) L"Poke"; 9 R. F( B/ `/ Q, I, j7 |) `7 c1 f & }" M/ \5 B, H0 G. A hr = m_pDisp->GetIDsOfNames (+ I: H4 k l l: J7 O y' y3 T
IID_NULL, // reserved" A: B! }, s. W& @+ o* }
&Name, // Array of names to get IDs for. N6 e* Y7 \ m; {) I5 t
1, // # of names in the array( M, ?; f; B# z, v
LOCALE_SYSTEM_DEFAULT, // System locale % v9 j% p3 d6 U5 p &pokeID); // Array of IDs to fill on output " i: w. [7 m7 s. ` ! }. B [$ G v+ s( i5 i if (hr) ' ^* c# u9 l" c4 T {; J1 P9 n, i3 }, w0 A% _/ s7 c
MessageBox ("Get Poke Unsuccessful"); / P2 R4 u" |. \5 e return;2 d \* F/ N. e% E% a+ u o
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& D E2 P; i7 r' G/**************************传递数据给extend**************************************/ # R( a# K4 q7 [- m/ r) K# }; M" l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; ]6 s) E2 [4 j+ n. U * c7 `. J: d% H( }% Y valueStr = SysAllocString((WCHAR *) L"1232"); * ]% h0 E' Y; x U4 b! L VariantInit(&pokeVariant[0]); * Z) T( t& z, B/ J! v0 I# i
pokeVariant[0].vt = VT_BSTR;' @: y& }4 A; M; T! ?% V' l
pokeVariant[0].bstrVal = valueStr; ) Y" W& ~& ]0 ]8 p0 e8 ` 3 p+ \+ b5 C1 |' l/ y4 X) ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & l9 X5 s% p2 D. u# J' |5 I VariantInit(&pokeVariant[1]); 5 o% S$ U0 k4 X; J9 k pokeVariant[1].vt = VT_BSTR; ( u. V: g4 X6 Y( G% s* w2 R, q% h o pokeVariant[1].bstrVal = itemStr;8 u, n' j7 [1 S- E' [; S
, x0 X( F6 p( r5 z* @6 O topicStr = SysAllocString((WCHAR *) L"system");: [& d+ C3 B' a; z% E
VariantInit(&pokeVariant[2]); $ S6 U. R( i& l, _- `
pokeVariant[2].vt = VT_BSTR; # p( f5 P8 y$ Z0 m pokeVariant[2].bstrVal = topicStr; ( J H. b9 x8 L; H0 Y' a! [) }4 @; c4 O
// Set the DISPPARAMS structure that holds the variant. . p- h3 i; F9 C, _( {6 } ' q' B8 i7 p0 o" N: \( t4 ] dp.rgvarg = pokeVariant;, J; l2 o% O* C( p" r) Y7 X
dp.cArgs = 3; $ H8 l: t: J6 h3 L, N dp.rgdispidNamedArgs = NULL;2 Z7 |6 J; U2 y8 [3 i4 E
dp.cNamedArgs = 0; % P3 f9 n( Z) z9 s% v, l ! h# p2 k8 V2 J9 f Q0 X8 W5 Q// Call IDispatch::Invoke()2 k3 [$ G9 ~! x
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hr = m_pDisp->Invoke( 4 J9 g1 R: C7 u pokeID, # [% ~- g$ T$ c IID_NULL, + U# X- S/ x, Q7 ]. _; Y9 k# o LOCALE_SYSTEM_DEFAULT, ! l; F3 V. {* ]3 K# ^( |4 b" W DISPATCH_METHOD, 0 F* j9 ^& r- l1 ?6 D+ _ &dp,$ f+ o4 L7 b+ W0 F4 \4 {
NULL,: v1 i" e7 p4 f
&ei, 5 D; D+ `, E1 d# I &uiErr); w5 z0 ]5 f( Y e& n8 B4 z9 w+ {) R9 F
SysFreeString(topicStr);5 G8 \0 x( d2 d/ _3 c$ g
SysFreeString(itemStr); 4 B; I5 `0 T: ~ \ s SysFreeString(valueStr); 1 L5 k# a$ j, D+ ?8 r, X. n/ x , i$ q# y; `6 W1 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??? ) ?' j( o- W) X. \6 b G6 I X7 |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???? 5 k( _% R+ L6 k. t4 `' T! N+ M `3 C; J
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2.这是request的程序 9 g' H) x& T% \- X4 `. [0 G// Request a value from Extend 7 `1 N! {* {, P7 K ^3 c// J. |$ F2 o$ t7 r1 I
// Initialize the variant that will hold the BSTR. Set the variant's. u+ {3 ~9 x, V
// type flag to indicate the fact that this variant holds a BSTR. Place the2 p3 d0 [1 O6 V4 X3 [7 T* L* V
// BSTR into the variant structure. " o, P8 e; N+ z3 y6 @, C0 C5 \% `4 [. [( j& i7 M7 ^
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ v3 F3 d" E2 A! f
& @: Z+ ?( k7 j6 D6 U( d, c itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( n- T5 [2 w% D. K VariantInit(&requestVariant[0]); 4 }, X3 x4 {! d) R w Y/ ~4 v& T requestVariant[0].vt = VT_BSTR; . Y0 t! C/ K: T) B/ W5 x1 n y, |1 ^ requestVariant[0].bstrVal = itemStr;8 {. H. _, ]3 g8 o! P0 C
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topicStr = SysAllocString((WCHAR *) L"system"); / W5 t8 I% b1 S7 j+ Y VariantInit(&requestVariant[1]); " ^; {5 ^* X! b requestVariant[1].vt = VT_BSTR;7 g/ Z* W* V( K5 B
requestVariant[1].bstrVal = topicStr; E. u; ^2 o7 E2 D! o, R
0 N! b* G* V9 M// Set the DISPPARAMS structure that holds the variant., `% S0 V, _8 D5 u3 {
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dp2.rgvarg = requestVariant; # c: b' W2 t* l9 b; f/ q dp2.cArgs = 2;- D- M2 v, _8 h5 r0 D) k
dp2.rgdispidNamedArgs = NULL;9 L* h$ _2 v* p/ d3 w
dp2.cNamedArgs = 0;$ v# L$ L0 n% \, D1 t
$ f. y0 ~* f! Y8 p var.vt = VT_EMPTY; % t- x7 u X; [/ L$ D: v4 S9 y) [: y, T* u; l" O
// Call IDispatch::Invoke()8 i9 g u2 u& K
* X9 t' n& Y. V hr = m_pDisp->Invoke(9 ^3 r3 V Y2 }/ k
requestID, : W7 h* w: F7 D2 g& E IID_NULL, 5 E' `( {" @) l* c0 ^ LOCALE_SYSTEM_DEFAULT, 3 H8 {' a% [) d( o( T) U% ]" C DISPATCH_METHOD,9 g: Z8 m+ H+ K
&dp2,, u/ M9 h5 g4 n) D, a& i3 @8 G
&var,6 c& E! q! C/ B
&ei, ' e9 K+ ]$ R$ f) l &uiErr);! x5 T3 K& _2 B7 G1 x
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SysFreeString(topicStr); 4 w3 s% y* T8 w$ G+ u6 m SysFreeString(itemStr);; B) @+ r$ F% P1 Y( d
请问该程序是获得extend里面的哪个值? 7 x0 T. W6 W7 Y* z' Y: R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????