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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:
/ d7 _2 Q. b7 u+ v. I' mName = (WCHAR *) L"Poke";6 J. C' c! @: A+ z# F6 C4 c' P3 r
4 {; S. \1 k) E8 t: M# R" z hr = m_pDisp->GetIDsOfNames (- t8 x. j2 r' f; p
IID_NULL, // reserved
j% E8 O7 L, S# i3 G &Name, // Array of names to get IDs for
; x7 s4 S* Y$ k5 L/ m/ z! B) f3 Y 1, // # of names in the array
+ W- I' ^( b. Q" N4 O2 I LOCALE_SYSTEM_DEFAULT, // System locale0 o; w" B8 ^" V1 O5 ]
&pokeID); // Array of IDs to fill on output
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if (hr); U0 S- t' E4 y* t6 V5 n1 n) u
{
7 w# t( I+ w% C/ _1 s2 D MessageBox ("Get Poke Unsuccessful");
7 h: R; y9 `9 h* f; F$ z& s1 X return;# n$ n8 h; `- f8 s! R5 A+ @
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! t/ a7 ^, i5 `7 Y! {! E/**************************传递数据给extend**************************************/
5 a x0 Y6 m0 M: H$ y5 G pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
8 v8 U9 Z' C; l! A! _( Q % q0 r% c/ q. ]- T' I3 A" t* R
valueStr = SysAllocString((WCHAR *) L"1232");8 a! s; v" f } ?- V1 I5 x8 P9 d
VariantInit(&pokeVariant[0]); * T8 b# z: Q0 h& m6 O5 H c
pokeVariant[0].vt = VT_BSTR;
. s( K0 f' t3 b% q g pokeVariant[0].bstrVal = valueStr;" X3 J$ C- l3 p8 L. ~+ R
% U( ^! Z: b' u3 h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' M/ [4 b' B! w, \
VariantInit(&pokeVariant[1]); 0 p p0 p- Z0 [' S/ Y
pokeVariant[1].vt = VT_BSTR;
% I& j5 n2 k ]$ b pokeVariant[1].bstrVal = itemStr;5 T- c1 N% [& A# w s3 d9 p6 `
% a" o$ K4 c8 Y2 `, b, o; I
topicStr = SysAllocString((WCHAR *) L"system");
: {# q1 x' H- t3 m VariantInit(&pokeVariant[2]);
" o/ y4 ?6 [5 l/ z pokeVariant[2].vt = VT_BSTR;. X. y- `( [+ U# o* r- w# [
pokeVariant[2].bstrVal = topicStr;
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" I4 m, \0 o: A7 c% Q// Set the DISPPARAMS structure that holds the variant.
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' d$ w' H: y! c* I8 v% B dp.rgvarg = pokeVariant;. b+ b0 c9 D$ l2 b+ O) X: r- d
dp.cArgs = 3;/ Y' P/ B- A% D7 G" _: W) q
dp.rgdispidNamedArgs = NULL;
6 t4 }+ V2 E w dp.cNamedArgs = 0;
+ R p) y2 |( ~/ ~% b: q S }( r! y8 {1 F3 f4 Q6 i: g
// Call IDispatch::Invoke()
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8 G8 t/ ?0 @4 r4 g* W hr = m_pDisp->Invoke(
* q3 d3 X% h# u pokeID,
0 P- t* \, _4 m IID_NULL,
& e. r2 s" q$ J! w+ S LOCALE_SYSTEM_DEFAULT,- w9 m% w$ t; t+ ^, z
DISPATCH_METHOD,
' r9 m( s4 l3 S2 b/ A &dp,
. I- C4 v2 f9 g/ S& { NULL,
5 |# E# z4 \- A! u &ei,- i! P# ~! b" B, L9 e+ p, J/ d
&uiErr);
$ F- |+ r% f7 f; S4 B7 Y N V7 t" F+ y
SysFreeString(topicStr);! I8 V2 X2 D& t; y4 P: H/ a
SysFreeString(itemStr);
& X3 R% T, _: b# H7 U, j( o SysFreeString(valueStr);
* K# k0 }4 Y4 d% h& T! ?; [4 D9 W. ?% D
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???
- x ~: T; ]1 J- J7 d* R1 }5 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????
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* l) S, d- t" |) S+ J2.这是request的程序
+ p2 D& l6 ~2 C% H// Request a value from Extend
/ \* j5 k' a: E! @1 v {9 K) a//
) F2 C3 K! N- H" p6 }# O// Initialize the variant that will hold the BSTR. Set the variant's. ]3 r6 A6 ]5 V8 [( ?
// type flag to indicate the fact that this variant holds a BSTR. Place the6 g' Q! C% K8 ^; X' X/ b: S! @( w: c
// BSTR into the variant structure.
( M3 o$ t7 N4 H3 l$ o0 G& m4 q0 X/ |
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 s/ n; A% U/ v
1 V! m. k p; w0 i; \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 @, f2 o3 J* P
VariantInit(&requestVariant[0]);
6 s; z1 Z% ^- A' Y* w4 B/ y# ^ requestVariant[0].vt = VT_BSTR;
6 y- A! w1 g' z- {5 a3 T1 |. V: Z9 _0 e" i requestVariant[0].bstrVal = itemStr;
! B* f: r( T5 D4 a" a3 Y
7 Q! M& H+ Y: c2 b topicStr = SysAllocString((WCHAR *) L"system");
# i8 D6 F$ i2 X- L2 `4 p4 p& u VariantInit(&requestVariant[1]); 0 x; l/ Y" Y& f7 _/ u7 N
requestVariant[1].vt = VT_BSTR;% v/ Y" o& V" z9 {; \/ D6 O4 c
requestVariant[1].bstrVal = topicStr;" Q# H5 j* s$ |. U. D
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// Set the DISPPARAMS structure that holds the variant.
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5 d( t8 x/ V( \/ ]; A dp2.rgvarg = requestVariant;
' K0 s& D3 }! i dp2.cArgs = 2;7 E; L4 L+ Y: V M. z% |
dp2.rgdispidNamedArgs = NULL;. d8 j) k% {) P! V, g
dp2.cNamedArgs = 0;) Q2 Y* B) k( N% L- [, v$ h: I1 p7 w- x
8 P0 k3 P7 k; I9 v( H8 d* h var.vt = VT_EMPTY;3 }& T/ { d1 t# |' Q7 C
/ b2 h) v4 v/ V/ W
// Call IDispatch::Invoke()5 \; u, {" y1 O2 S) S9 p9 o9 z
! O$ w+ @" F7 @: l7 U: f hr = m_pDisp->Invoke(
; P) {2 c* K9 X# B9 J: u" |' o requestID,
4 z5 ~7 B- Q& p& o: S- Y0 B IID_NULL,; g, b2 T5 \4 \7 c# q6 o2 Z: ]
LOCALE_SYSTEM_DEFAULT,
2 o9 U3 w, |6 r4 m" V6 w" P7 I4 ? Y DISPATCH_METHOD,5 n# T) x! `4 x* F4 `
&dp2,
u8 V! `2 \7 T$ I/ y! s &var,4 P% U; ~0 v( O& y/ u3 B$ v
&ei,
3 p2 _. \8 i" S* K, k* V& o, X &uiErr);
1 E6 Z5 r1 [7 W8 q+ o! [4 F1 R" b5 E
0 b% j, T% \$ L* S7 J K$ ] SysFreeString(topicStr);% Z4 a3 G9 \# {: c# J! c
SysFreeString(itemStr);
- q, S, [; Z/ i请问该程序是获得extend里面的哪个值?0 B7 Q0 n' |% 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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