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:) L7 J- }5 m; R% o
Name = (WCHAR *) L"Poke";# j0 {/ O+ X+ c: s
% t \8 |) j3 i6 Q f9 ^; x hr = m_pDisp->GetIDsOfNames ( 0 l& ^$ i% `& b, R5 i; L6 q1 p IID_NULL, // reserved 7 t3 H; O8 s6 a8 g. ] &Name, // Array of names to get IDs for* @5 A- Q6 v4 y2 F: Z+ d" } B
1, // # of names in the array 2 \: Z( p/ |; @% Y# _ LOCALE_SYSTEM_DEFAULT, // System locale4 R8 g: G& v8 W, M2 S+ z/ w
&pokeID); // Array of IDs to fill on output( H/ D1 M, d" ~5 \6 O
3 `4 E. M6 P# a if (hr) - P* L, L0 Z) f% G9 R8 H5 l {/ b5 W- s- B h) z6 l M; _
MessageBox ("Get Poke Unsuccessful"); # w& ~, c2 p' n6 r! N return;& L9 V8 O) |. h6 x B- g
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; j* S8 ]) s& |+ V/ k0 R/ y/**************************传递数据给extend**************************************/3 |3 f1 i9 l& f3 j- Z8 P+ E
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 |) y2 J" B' q1 F; v- V
8 o# p8 l, D O1 ?" u4 G t/ H. ] itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* ~3 H$ h$ n0 Y( ?
VariantInit(&pokeVariant[1]); # x* R0 S, |. Z0 t5 n5 x( Q. I) m pokeVariant[1].vt = VT_BSTR;" G7 s" E H+ j- @+ ^4 A
pokeVariant[1].bstrVal = itemStr;$ A) Z5 ^7 F% b# k$ Q0 _
9 Z# P) ~2 R" g* k( H5 b8 D/ U topicStr = SysAllocString((WCHAR *) L"system"); ! O! D* ?4 R" d1 e9 k& u7 v, s VariantInit(&pokeVariant[2]); 1 [9 x$ ?! V% q" m
pokeVariant[2].vt = VT_BSTR;5 W, |+ X9 z9 \4 x3 F8 i1 v
pokeVariant[2].bstrVal = topicStr;/ }2 X) {1 E) ^$ D
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// Set the DISPPARAMS structure that holds the variant. " h1 W" p. f$ j; J/ F3 r8 Q4 ^% A6 I
dp.rgvarg = pokeVariant; + m1 C6 {8 k( J9 Z2 _8 C0 m4 l dp.cArgs = 3;4 r7 m! @! r+ A. T! p* T
dp.rgdispidNamedArgs = NULL;1 \8 u* u2 M$ J
dp.cNamedArgs = 0; 0 {: Z- @/ d6 @$ y/ l; }. R; J5 }# M$ g& u/ n7 [
// Call IDispatch::Invoke()3 ], O# M3 b% A1 P$ F
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hr = m_pDisp->Invoke( + }9 ^ x' R. D% B0 ?8 {( K pokeID,( O4 J, t6 e% k
IID_NULL, 3 i- [% q9 R% j7 A T8 J LOCALE_SYSTEM_DEFAULT, 5 U' u4 @2 h1 H9 }1 C( G DISPATCH_METHOD, , q8 ]* z! e& Z7 N2 _7 f4 v" T &dp, & A4 R9 k0 ^* T1 \# { NULL,! F( x, r4 N' m {/ S' Z; m
&ei,0 Z2 b* L& t6 ]; C& k' v
&uiErr);9 t. H0 }0 D" g% {2 q
7 A) U5 G1 G- Q) H SysFreeString(topicStr);' `) j* q8 y1 Y0 c! H. z+ Y
SysFreeString(itemStr);+ i. R3 }6 V2 h7 f* h8 e" x
SysFreeString(valueStr);8 B8 x4 e3 J; h4 r9 Q$ O
- D0 Y7 U/ s0 P' C; }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??? }( @4 m" ^: B
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????7 r$ E" P) _4 y u+ L0 x
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2.这是request的程序 , w2 g6 {5 ~: U+ g// Request a value from Extend1 j# U8 ^) W$ z% C. z5 x
//7 y% F# f# c# v
// Initialize the variant that will hold the BSTR. Set the variant's6 R8 M' U) r K) n9 `8 ^
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 S, h) h3 J5 K7 ]$ M! x3 F$ H v7 o// BSTR into the variant structure. & x* L# n; ? e! C) L ; G1 v7 X% _# M. _/ H) w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 t3 N# J; r* _ g2 K9 D+ I# Y, I
% A# {; C( d7 p4 H2 ]4 h* C: y9 x( ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 ^; C1 _' B1 g& I7 o5 [4 U
VariantInit(&requestVariant[0]); + w2 b, N! K( M3 a0 I R requestVariant[0].vt = VT_BSTR;2 J! h7 q1 [& L
requestVariant[0].bstrVal = itemStr; 8 |" q( l7 _! p3 d: L : _7 [+ w/ `( g' A) c4 l* a( V topicStr = SysAllocString((WCHAR *) L"system"); * `5 K4 z1 g; W1 S5 }5 e VariantInit(&requestVariant[1]); 3 l/ ^6 H9 f' l& f- \- S2 @& P% s
requestVariant[1].vt = VT_BSTR;9 y4 b, O0 L; U' z) o1 K2 Q8 L
requestVariant[1].bstrVal = topicStr; . X2 q! R) ~" v. D0 r 0 t, ]6 p. ]6 X" c1 ^9 ^// Set the DISPPARAMS structure that holds the variant.' Z0 S3 ~: `0 W. [6 o4 D
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dp2.rgvarg = requestVariant; ! b g: q' z0 r% i1 ~: ?- q+ K; g: M dp2.cArgs = 2;% A1 J* ^* r, Y3 P, F/ h
dp2.rgdispidNamedArgs = NULL; . X8 E1 d0 O, c' l dp2.cNamedArgs = 0;8 ?4 X! k6 E C. o4 i; v3 J! [
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var.vt = VT_EMPTY; - {8 t v! _. ?$ p: m8 y0 O; I( l; C( S. a
// Call IDispatch::Invoke() ' B. V% e' q9 B4 @! l% ^% I' U% E- m7 d- f& g2 _6 G$ ]: @
hr = m_pDisp->Invoke(" l" a" M& o5 x' [
requestID,* T3 R' W( f! A, L( Z% h I. ?
IID_NULL, % j9 D( ~+ m) f$ W5 G& Y LOCALE_SYSTEM_DEFAULT,0 Z3 F5 X$ M3 g* \1 G! L1 w& d) U+ k
DISPATCH_METHOD, 5 v9 Q) f" T `& p& O0 [3 f' r &dp2, % a v2 {3 p. L2 p' h% `: b9 C0 F8 w &var,& K/ h# _0 q i9 |6 A+ K
&ei, 3 O" F b0 y* W &uiErr);2 u- Z, W: [& Z8 o3 c: |
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SysFreeString(topicStr);: R1 q: d3 P- s+ H+ x
SysFreeString(itemStr); ( L8 x& d# ~; q" [8 A& ]请问该程序是获得extend里面的哪个值?" t: b3 w. h# b8 T% W( 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????