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:1 |5 Y6 M; p1 j0 l7 @
Name = (WCHAR *) L"Poke";/ \. N9 p7 |/ ^: l8 X# G" p
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hr = m_pDisp->GetIDsOfNames () q4 U$ \" K* I1 R
IID_NULL, // reserved8 R+ y; v1 P( H) k
&Name, // Array of names to get IDs for/ _) K% `( Q; x
1, // # of names in the array ( e2 E3 f2 |3 u LOCALE_SYSTEM_DEFAULT, // System locale( ?6 |7 W3 u2 h& x1 |' w3 n# N
&pokeID); // Array of IDs to fill on output% L, Z2 Y. B G- P3 D1 C2 q2 g. p
I- Y9 y$ H7 P; l+ O if (hr)% V. s+ n y9 x% S% x
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MessageBox ("Get Poke Unsuccessful");" @: u. @5 h1 [5 w
return;! u3 x( s) a7 a" F" F. p
}! p f& |4 f5 }; @) [: {/ a
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/**************************传递数据给extend**************************************/) S$ u! k1 _: e1 @* L
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 V, G/ J1 k- N5 w! x. Y" q ' o* Z7 A( Q" X: U' n! c
valueStr = SysAllocString((WCHAR *) L"1232");+ t" J1 x+ a& ]1 Z/ b" P3 _. D
VariantInit(&pokeVariant[0]); c H5 B; [: C/ s) f+ Y* m6 T3 s% X
pokeVariant[0].vt = VT_BSTR; & `* e- y' W3 q1 A pokeVariant[0].bstrVal = valueStr; $ [6 N) e+ H% j0 _ w9 B! Y7 w5 a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 C" ?* f# |$ ^( M. F5 w
VariantInit(&pokeVariant[1]); ( K( @5 G% I2 y6 W pokeVariant[1].vt = VT_BSTR; 9 F3 `. x2 m5 ~9 d+ v3 J P1 B pokeVariant[1].bstrVal = itemStr; - Y% A5 e; n; M7 Y4 T& M. r8 d' W0 ]7 {* s. ^
topicStr = SysAllocString((WCHAR *) L"system"); ! B2 E" O- R: D6 [. M& Y! f; i VariantInit(&pokeVariant[2]); : H V3 J+ @: d' M pokeVariant[2].vt = VT_BSTR; ) a, d2 Y& f1 k$ ] X* w pokeVariant[2].bstrVal = topicStr;6 W8 J" P: f/ [& f+ N
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// Set the DISPPARAMS structure that holds the variant.( x) W; R; I8 z( n0 i2 I
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dp.rgvarg = pokeVariant;) R( L3 f3 |" ?
dp.cArgs = 3;' ]1 `2 X( B1 y, o
dp.rgdispidNamedArgs = NULL; . V+ P. ]6 i1 M, W W C+ [9 [ dp.cNamedArgs = 0; 7 X# f( y; V' ]1 l7 y' b4 i# E( e5 j. H
// Call IDispatch::Invoke() * t7 ]- y( K+ l, a7 z- T ; n, f" Z4 m9 Z' c* _4 x hr = m_pDisp->Invoke(9 F5 V- `8 \' X) Y4 @, y
pokeID,+ e3 t9 ~( e% J
IID_NULL,0 p# L+ c9 ]$ q! s* R5 i
LOCALE_SYSTEM_DEFAULT, " I0 r o4 G8 b2 {3 D DISPATCH_METHOD, % }& d8 t% o: X3 ] &dp, ! m- D D( Z; X2 c2 H# R+ x NULL, 5 Z" w( ]- N2 s. a( I* o* } &ei,3 M" g- J B C
&uiErr);0 t2 z8 H6 D c! ~: R
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SysFreeString(topicStr); , [7 w2 n4 M% D- E- y$ N* H* b SysFreeString(itemStr);; X# ~* w. U3 \
SysFreeString(valueStr); / X0 c& O! }9 U! b7 Z2 W8 ]* | v) P+ j
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???* T. {+ D8 O1 ?* E8 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 H6 p' {6 q" g' I e" N8 V( F5 m f1 n! s! I; I8 ^
! m$ h0 E" }% I. g+ s* z3 `" G+ |5 T2.这是request的程序, n, k$ x: P% @) R G7 P
// Request a value from Extend " _0 @2 s* D& s1 M//9 g6 f4 E6 H/ l a" u
// Initialize the variant that will hold the BSTR. Set the variant's Y9 m) f( a, F; ^; r. y
// type flag to indicate the fact that this variant holds a BSTR. Place the" w+ Z7 ^6 c$ _# I4 ]3 U+ p2 e/ u
// BSTR into the variant structure. - t9 `/ i0 t* @! m+ o $ b3 N/ u$ I9 u4 s& ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; P. p. N, Z8 m
4 p$ K2 G) U0 @6 I9 M S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 L) S7 g, C7 a% I& P# T
VariantInit(&requestVariant[0]); # g9 w8 w% E& D! q; ~( i6 U
requestVariant[0].vt = VT_BSTR;! N3 f* ~" ?) S h9 {2 e: q) ^; b
requestVariant[0].bstrVal = itemStr; 8 v0 ~. R" F2 c1 Z2 i$ W' g& Q u % S9 V- t! i" u7 G+ e% q& H topicStr = SysAllocString((WCHAR *) L"system"); , X2 t4 q# C' J3 _( z" N VariantInit(&requestVariant[1]); * l9 b8 {* J& g5 ] requestVariant[1].vt = VT_BSTR;) i9 U0 } h( I6 l! D( M
requestVariant[1].bstrVal = topicStr; 7 _ A8 X6 U' L0 `2 K7 e! `3 j: Z( `" a5 `; `$ w; n
// Set the DISPPARAMS structure that holds the variant. . o! |6 k, Q: e1 U7 [6 I5 e' ?/ V# Z- M6 |2 c' F) ?2 k, X
dp2.rgvarg = requestVariant; % |2 U' S; l7 Q+ [) @ dp2.cArgs = 2;% I2 W' M( J- O6 P. C" K
dp2.rgdispidNamedArgs = NULL; / n5 }) {! J0 O4 N7 a0 s5 ~: H+ N dp2.cNamedArgs = 0;! X6 B) D6 t, z3 ]" k
% k% x3 N& m3 h7 b var.vt = VT_EMPTY; : y. ~' B- j) N4 X% V$ d S) o% | N) ]8 e9 }0 F6 Q) W" K
// Call IDispatch::Invoke()6 ^ ~" H9 U7 h3 l* \" X
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hr = m_pDisp->Invoke(* p8 I- D* @ C/ j8 `
requestID,* b* O. z1 t. X# S
IID_NULL, ' A2 b m' M$ m- o+ d8 K7 k3 O. y LOCALE_SYSTEM_DEFAULT, ! a; U: J( h; e) B2 S DISPATCH_METHOD, 2 `8 O [+ D+ g+ z, `5 a* \( v &dp2, 3 Z+ F) R( j" {/ D/ q &var, ) A3 i/ D7 |2 F8 O9 r6 ]! }) ? &ei, 1 |8 O+ [. f- ~3 d7 | &uiErr); 7 J0 V7 b# B! A7 J+ s 0 G* Q& U; V$ ?7 l7 W1 ~8 e SysFreeString(topicStr); 9 R' w3 y8 ~3 [$ Q5 @9 ~; E, Z0 v1 R SysFreeString(itemStr);- E0 W) f: C; U; i5 j
请问该程序是获得extend里面的哪个值?) O2 C3 D0 q& o% s2 I5 g
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????