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:5 B% }! V, x2 R! b3 n
Name = (WCHAR *) L"Poke";6 y% [( T- e o; R1 C
3 q4 ~4 Y: s/ j2 g# M hr = m_pDisp->GetIDsOfNames (/ ~% e5 H* e7 B7 U8 n
IID_NULL, // reserved% o1 t8 I# C! `6 N# s
&Name, // Array of names to get IDs for: z, F$ h9 v' V' v* R
1, // # of names in the array! _, e# H E! F. P# @- o" A
LOCALE_SYSTEM_DEFAULT, // System locale . o: N7 U% M5 Y+ L$ W; j1 f0 m. ^; R &pokeID); // Array of IDs to fill on output Z; \& ]* ~2 L" J6 x4 a 0 Z+ P, ]$ d+ J) j' R6 ]; G9 ^+ _: J- F
if (hr)# {) x& i, S) `/ ^) d- }
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MessageBox ("Get Poke Unsuccessful"); / H) _' W. a6 W9 f5 s return;6 l5 O" e+ L7 ~2 P. e. _) X& Z
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/**************************传递数据给extend**************************************/ ; J; r% Y* F) @3 @% V3 \+ A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 k1 d0 r7 ]# B( h' b! C$ M. N ! {: _2 |( @6 l5 s' |1 b
valueStr = SysAllocString((WCHAR *) L"1232");% D, Z! s9 ]* _& a8 D
VariantInit(&pokeVariant[0]); * ^! {$ s- |+ o" I4 d3 l3 D pokeVariant[0].vt = VT_BSTR; , R9 {+ Z9 S) L5 G5 Y! N1 h: u, q0 c pokeVariant[0].bstrVal = valueStr; 6 K' @/ \$ q* l2 e Z0 T: U& x. D/ \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 a6 i& F F4 y3 C5 R2 U/ I$ j VariantInit(&pokeVariant[1]); 2 j9 `- A! _" b. w+ @# V pokeVariant[1].vt = VT_BSTR;* ?. X& \! Z1 Z- C: m
pokeVariant[1].bstrVal = itemStr; ! t7 @9 {3 t% C: l% [- D 6 }& }$ |9 P8 A2 Q5 z1 ^ l topicStr = SysAllocString((WCHAR *) L"system");( W" w e& g! p. T+ _ J2 r$ X
VariantInit(&pokeVariant[2]); ' F. H6 {# Y; { pokeVariant[2].vt = VT_BSTR; ( w9 J& f$ ^1 W. e( J pokeVariant[2].bstrVal = topicStr; ( R+ J4 @; |- P5 g( o: B 6 G! n- b% x: r6 z" Y1 _! A/ r// Set the DISPPARAMS structure that holds the variant.7 m% O/ T% x3 O3 O% ~1 ~( k
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dp.rgvarg = pokeVariant; 0 p) a3 Q3 v4 @ dp.cArgs = 3;( W N7 w* f! u' _. {3 V/ v' n
dp.rgdispidNamedArgs = NULL; 5 Q/ @6 F7 k& V6 u dp.cNamedArgs = 0; # W$ j4 ^9 O4 Z* y% Z4 x' { & m' b X# L' K1 y// Call IDispatch::Invoke()8 e4 R% Q( A* P* W9 |! i: G
* F0 q# q: w+ Y7 S8 ^ hr = m_pDisp->Invoke(7 n& l6 k/ I, H. m) @$ `# Y
pokeID,& R k: g0 `+ n4 ~
IID_NULL, % g* a$ W" C/ N" O2 N$ U LOCALE_SYSTEM_DEFAULT,4 g p/ T1 y+ B% [/ v
DISPATCH_METHOD,9 p. y1 X3 P9 H+ `
&dp,7 Y# y' s% w' M p. U9 o; w& G
NULL, f2 m* P) P7 a# Y- X! f7 g
&ei, O |, a5 ?# \0 S; ^% R% a &uiErr); 4 [# L4 W) Z0 J, y: E2 ?7 ~$ S & h4 M( J. L5 u3 @2 c0 ^ SysFreeString(topicStr);# [0 m: w. {+ R9 a X, F( K2 k: Y3 l
SysFreeString(itemStr); . R+ X# N. P/ n; c! Z2 R SysFreeString(valueStr);) U+ j' Z* _ ^
+ Z. x$ M) v" `2 q' Z* V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??? \: S" B5 B6 a) y, f# u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????' B, h' a4 o) J2 O, ^
2 \; a1 H6 d2 f7 i% u) y. w $ ?$ o% d, ^6 \+ l: d* M2 j2.这是request的程序 * e3 D% U% P' |) m) k. j! D// Request a value from Extend 0 f. H0 S8 d4 ]6 q0 c2 k W//& i8 w1 V' C8 c
// Initialize the variant that will hold the BSTR. Set the variant's 8 a0 p! t* n2 x5 ^// type flag to indicate the fact that this variant holds a BSTR. Place the 9 z8 `% s) y- }- C) d% i) s// BSTR into the variant structure.8 O: g9 R6 {6 f3 |6 e
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' y! X7 B# j! r" g$ K$ { * n" ]% E' m; x) u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 p) G, o# Q7 H3 P2 N3 l+ O VariantInit(&requestVariant[0]); 3 @1 d/ D5 g+ j L1 r% }5 {
requestVariant[0].vt = VT_BSTR;; G. M/ `8 ?8 o1 h# D
requestVariant[0].bstrVal = itemStr; t1 [1 L) B, q9 k8 C! X- G
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topicStr = SysAllocString((WCHAR *) L"system");: [ ]6 P* G! o1 x; k
VariantInit(&requestVariant[1]); 5 q2 P$ _9 c* z4 {' @ requestVariant[1].vt = VT_BSTR; & `6 | s/ a8 a( \7 J requestVariant[1].bstrVal = topicStr;: g3 p6 g; h9 v: g
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// Set the DISPPARAMS structure that holds the variant., ^6 p# t) [3 b1 m3 ?* ~: G
) ^* ?/ A t4 `- p- Q/ v' h dp2.rgvarg = requestVariant; 7 u( C, J7 h4 w+ L) c0 Q: G dp2.cArgs = 2; 1 z, |6 a: V- f; E' Z4 \ dp2.rgdispidNamedArgs = NULL; 2 s4 R, i O. f! A- e) v1 J5 L dp2.cNamedArgs = 0; : x) ^# D1 c5 L1 D( n# @" r+ D8 E) J% b; ` J8 b/ s
var.vt = VT_EMPTY; # U; v0 D" D! D% O4 g3 L8 P: ], r8 C6 H' |6 U/ R
// Call IDispatch::Invoke() + u$ U: [( Q/ | . H2 |4 T3 \- e5 y hr = m_pDisp->Invoke(7 D( B* @) a; H* M) a6 t% B
requestID, 7 e7 `1 j5 h4 { IID_NULL,6 v: p# e" g1 L; S
LOCALE_SYSTEM_DEFAULT,* g f9 Z* l! Q" Q" J
DISPATCH_METHOD, + @7 ~0 [7 L# k$ h& T4 c &dp2, / R$ a5 y: S) v0 O9 Z, e &var,$ {+ ~; x- E3 R8 |# {" f
&ei,8 ]: x' |8 I& o0 x
&uiErr);! D% b' O1 p6 E7 y
; N' y0 {- f C) o$ S) p SysFreeString(topicStr);, w0 ^7 S' B. e) i9 D+ u
SysFreeString(itemStr);3 G! J5 Z0 S4 R0 Z: V
请问该程序是获得extend里面的哪个值? , m6 E# Q* T6 y$ [7 J9 T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????