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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:
j6 ` i8 K! `# S/ \! q% LName = (WCHAR *) L"Poke";8 N3 |* R3 H. N
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hr = m_pDisp->GetIDsOfNames (( T$ R% t1 h5 B+ r& P6 I3 k
IID_NULL, // reserved3 @" x: y4 F: p# _: W" Q
&Name, // Array of names to get IDs for
I4 z. E" w; Q 1, // # of names in the array$ w2 I3 K& b+ E- C
LOCALE_SYSTEM_DEFAULT, // System locale
+ z% i6 v: m" G% k0 n: g &pokeID); // Array of IDs to fill on output8 {, F* W3 W& m, o
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if (hr)
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6 e$ L- d) [* I2 R5 g3 P MessageBox ("Get Poke Unsuccessful");- F0 Z- a. ]& t
return;
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/**************************传递数据给extend**************************************/4 B6 V- W/ i) B* z! `* M5 v* b
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
7 W7 o, ]5 ?& e' `2 r3 F9 X: M4 P, c/ |0 N VariantInit(&pokeVariant[0]); ) o+ T5 i" r, v d7 M5 S4 |0 [
pokeVariant[0].vt = VT_BSTR;
. F8 H& v' J1 x3 \& Y& c pokeVariant[0].bstrVal = valueStr;
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' c( Z4 C4 p$ n$ o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' E( ]6 D5 `3 I/ X/ n VariantInit(&pokeVariant[1]);
. r; D/ `' S& r pokeVariant[1].vt = VT_BSTR;3 V9 x: J, U. h7 u! T
pokeVariant[1].bstrVal = itemStr;
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+ T* q" \4 t9 h4 r topicStr = SysAllocString((WCHAR *) L"system");
- u9 D0 I1 Q8 s4 @7 M1 T6 y# r1 `+ ` VariantInit(&pokeVariant[2]); % \, [( M; L' L& h6 Q
pokeVariant[2].vt = VT_BSTR;+ \! g- l c* v! p5 Q
pokeVariant[2].bstrVal = topicStr;: K7 S$ j; N5 k1 _. j3 M6 c
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// Set the DISPPARAMS structure that holds the variant.
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9 `9 c1 M0 b0 c) H dp.rgvarg = pokeVariant;$ w6 f8 {2 N) Y
dp.cArgs = 3;* p i( f% }$ g" L5 z* p
dp.rgdispidNamedArgs = NULL;
, ?8 v; C: e# Y% c8 u/ n8 x8 B2 P dp.cNamedArgs = 0;' Z! H# h0 v. x0 g6 g
" y; o- c+ C1 G9 e( L// Call IDispatch::Invoke()
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7 j2 Y0 K1 A# }$ K1 D8 y hr = m_pDisp->Invoke(5 {6 t. m* u4 M/ _5 c
pokeID,) C* K. [7 U) p$ j, l( d& T
IID_NULL,7 E0 V+ y( d8 M0 K" L, ~4 S4 U
LOCALE_SYSTEM_DEFAULT,
0 r9 C2 ^4 k* N$ F: ~ x8 u DISPATCH_METHOD,; G9 L4 P% G l' z8 M. ~# d& v
&dp,
3 B" [$ [( W) e NULL,
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&uiErr);3 u6 M' z- ^" e
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SysFreeString(topicStr);) _! K- x" R' @$ L) z i
SysFreeString(itemStr);
. v+ G' Y8 C: x- b SysFreeString(valueStr);; Z, z: X0 Q" ~) _& o M- B
3 Y$ n+ E2 ^" g. O7 q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???* m* J. f- l9 s* \, d
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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2.这是request的程序6 d5 N) O- |. G" X( O: l: `4 s: G% \
// Request a value from Extend
3 \: |" G: [% ~: Z8 t5 U//$ G2 J" `) E1 l# L' u+ ]
// Initialize the variant that will hold the BSTR. Set the variant's
$ Y( v* L s7 _4 ~; t: o// type flag to indicate the fact that this variant holds a BSTR. Place the* ~$ y4 [8 _& ?0 k* ^4 @1 ]6 U
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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' |% @2 O4 C9 E9 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% b" w) {1 q5 l) f9 O
VariantInit(&requestVariant[0]); 2 ~8 q! v4 `7 F0 _2 D
requestVariant[0].vt = VT_BSTR;2 V. v$ R9 |# m' `) L
requestVariant[0].bstrVal = itemStr;% D! U, m( o( e
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topicStr = SysAllocString((WCHAR *) L"system");4 X2 @" j" T" h, E$ i- I
VariantInit(&requestVariant[1]);
1 `, L! B5 n$ B y requestVariant[1].vt = VT_BSTR;
1 m7 p/ H4 Y4 J9 D& I/ E+ [ requestVariant[1].bstrVal = topicStr; Q* C/ o$ g0 ^/ F5 R6 v
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// Set the DISPPARAMS structure that holds the variant.
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- w! U+ P- d! L9 l+ L1 V dp2.rgvarg = requestVariant;
& e2 _1 F* S# j) G+ H" G3 k; m dp2.cArgs = 2;
/ Y$ |8 H4 ~: p% m. F. W dp2.rgdispidNamedArgs = NULL;" v' r. {8 c7 |
dp2.cNamedArgs = 0;
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9 ]$ s1 Q' o% M4 n8 `5 ] var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()* ]6 [6 I+ p! c: j8 l0 {8 i
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hr = m_pDisp->Invoke(6 n; P1 E" ?, b( P/ ^9 F1 k7 l {" g) u
requestID,
& K' G# J# M* N) M R" w IID_NULL, l1 i& I" m3 i
LOCALE_SYSTEM_DEFAULT,
* v! G0 |- N k( \; |1 A: L* r DISPATCH_METHOD,, ]4 G# U4 H$ G' P! l
&dp2,, }8 ~7 V. x$ N2 o
&var,. N0 \6 X5 L$ b4 O$ }) ^# _
&ei,; I9 n- U+ f6 r/ M2 `/ A; g# Z( L
&uiErr);6 U" ?3 m4 j' C* _7 P1 F
+ Q. x% a- f: o# g/ g6 n0 ] K SysFreeString(topicStr);
b; o+ H6 ]/ u. \5 x: W( A SysFreeString(itemStr);
) s0 d5 W: T& {: d$ Q$ x3 w0 Y: |请问该程序是获得extend里面的哪个值?) C ^0 @4 [2 q) 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???? |
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