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5仿真币
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： y# y; t9 J- O* Z
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
5 V: c. s# {" z+ F IID_NULL, // reserved
; c: z/ Y: E4 |4 W( I. P* I &Name, // Array of names to get IDs for; e- s: K$ d5 Z
1, // # of names in the array
4 i* V) m* H" w LOCALE_SYSTEM_DEFAULT, // System locale: G+ L. R1 V) X0 `% w' ]% u
&pokeID); // Array of IDs to fill on output
: W3 T4 o2 m+ u, \) b( l
' j0 _& c8 F0 @: m% P if (hr)' ^* F! M# \- |: h
{
: r- R+ t4 d6 t! L" J MessageBox ("Get Poke Unsuccessful");
; w6 b, t. q9 f6 v return;
0 A* {# K! q! |' j/ y& [ }
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/**************************传递数据给extend**************************************/
$ @+ m3 [# z0 s9 F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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?2 M! `' N& p4 t0 V6 y: g valueStr = SysAllocString((WCHAR *) L"1232");$ K0 V% E! I$ J( o, Y
VariantInit(&pokeVariant[0]); 2 y5 ~9 D, D3 t7 K
pokeVariant[0].vt = VT_BSTR;
k; C7 A" b" h8 U pokeVariant[0].bstrVal = valueStr;2 Y5 o7 j/ F1 I8 }# X( T8 S4 J1 k( A
* b' T/ S- J( s
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# K& w( ]' s$ ~, v
VariantInit(&pokeVariant[1]); 2 N9 q( `4 D/ F2 X$ ~& K
pokeVariant[1].vt = VT_BSTR;! @ X" h) Z6 p4 m1 V0 a [
pokeVariant[1].bstrVal = itemStr;) S4 T5 F2 k+ n& [, z- o4 O
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topicStr = SysAllocString((WCHAR *) L"system");
. e" U% R3 J, E VariantInit(&pokeVariant[2]);
, X# E" w, B! r: z! z+ O$ H pokeVariant[2].vt = VT_BSTR;. z4 w1 V# d* |7 v) P
pokeVariant[2].bstrVal = topicStr;) Y. X9 N1 Y7 f, M z: g# [& t
/ h# M5 g" ?) v. {; n8 \" d& m4 f, w// Set the DISPPARAMS structure that holds the variant.
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! q8 c9 q0 h$ O' ]) `) B dp.rgvarg = pokeVariant; i T7 R% @( ~6 \. Q9 B
dp.cArgs = 3;
2 V% h6 i9 P* y+ G6 Q9 ^$ _ M dp.rgdispidNamedArgs = NULL;
; e* ?2 M" X$ t$ p: C& K dp.cNamedArgs = 0;
- Z% s3 l% R1 Z1 a( S
/ Q9 V. l {( }6 |" E9 H2 c. A8 t// Call IDispatch::Invoke()
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: o6 w; @6 O e. P hr = m_pDisp->Invoke(
5 w! u$ ?% F* |" L! c pokeID,; Q0 N9 U" x$ x! ]
IID_NULL,5 z4 q0 `. U8 f7 Z! \( ]
LOCALE_SYSTEM_DEFAULT,
( K U! I& m2 d+ @ DISPATCH_METHOD,# \5 s: v: l" \5 i; S1 f+ g1 k7 `
&dp,3 ?1 _: }, {* R" @& I
NULL,
# _- Y0 r5 K3 j6 S" Q( A) f5 \ &ei,8 e3 r+ J# F* X
&uiErr);8 B+ W7 N! F/ S$ {: X
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SysFreeString(topicStr);
, d& Z3 o0 U& Y" i6 S SysFreeString(itemStr);
3 X" ?2 C/ K [% g) {' T SysFreeString(valueStr);1 \5 D8 T0 B( }
4 i% F7 `* m& f6 o) f. `, _+ k# n6 d( E
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？？？
. w/ j: e; c6 g4 E' W$ ?, A, q/ Y2 [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？？？？
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, x6 h4 X3 o; H$ x7 B8 J2 p# \5 m0 X2.这是request的程序! W' l4 \2 q( `$ N$ b
// Request a value from Extend& o% O, ~7 v! C1 k. ]% D3 Q) W
//5 j! n. i" {6 m. e' R+ [7 d
// Initialize the variant that will hold the BSTR. Set the variant's: L0 k* S% }+ K) f0 s* F$ P
// type flag to indicate the fact that this variant holds a BSTR. Place the( l' V, X. ^1 r$ E, m# J. ^
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ [" d/ B; L) `4 X3 Y
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
" Q+ i' S/ W. S3 z VariantInit(&requestVariant[0]);
# u. ?3 z; Z6 p; S6 @& ? requestVariant[0].vt = VT_BSTR;
9 q2 A* `! [% |# A1 \' |! [ requestVariant[0].bstrVal = itemStr;
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4 n: A2 i9 f& ? topicStr = SysAllocString((WCHAR *) L"system");& _" p& r' h! n) R) e# q
VariantInit(&requestVariant[1]); 8 t2 H; U3 z$ k5 e. D
requestVariant[1].vt = VT_BSTR;! d/ O F! Z$ v
requestVariant[1].bstrVal = topicStr;
4 u3 t) B! l; z+ i; Z
1 F$ ]5 H, j9 f5 s: p// Set the DISPPARAMS structure that holds the variant." \% O2 `; ]7 B: i: O& V( N8 X; ]
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dp2.rgvarg = requestVariant;" S L& x C, [
dp2.cArgs = 2;
1 w# t9 ^5 W5 M& N; P8 l: { dp2.rgdispidNamedArgs = NULL;/ F) n# F3 l+ Q% V+ }
dp2.cNamedArgs = 0;
4 J0 B" y- V+ n* _
! }, X; w% A6 f var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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% l2 z! Y1 [2 a5 ` hr = m_pDisp->Invoke(( V. i4 m/ Y. y3 x
requestID,7 O; Y9 K. C) B6 g2 s
IID_NULL,! j) c: f" L5 C8 K- k
LOCALE_SYSTEM_DEFAULT,7 Q! h/ i$ @2 J; T& X% W
DISPATCH_METHOD,4 N; D! X0 H/ i: v; F
&dp2,
* j4 Q4 t, \$ t4 b6 G. E &var,/ {% Z4 N( G% a' b8 R5 {" ~) g
&ei,+ P6 S/ h' L4 J/ k0 m, n2 X- {3 z
&uiErr);
+ [$ n% a" ?1 K
; ^+ L/ U' L P- I( M SysFreeString(topicStr);
) R( H& q+ N* f5 f* M SysFreeString(itemStr);
$ X1 h2 a3 W0 K9 O$ [请问该程序是获得extend里面的哪个值？6 z: q" g3 x+ }6 j
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？？？？ |
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发表于 2008-11-25 19:37:03
