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: w8 c6 Z! o. U+ p
Name = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (8 {( Q4 T6 [. H8 D1 j2 h8 p
IID_NULL, // reserved3 G6 w9 P" q$ |% j4 {
&Name, // Array of names to get IDs for) S' r$ X# W- l9 B. u
1, // # of names in the array
9 |' k( ]# ]3 F* a; H: J$ L LOCALE_SYSTEM_DEFAULT, // System locale$ M$ r9 L6 y# e. ^" ?& ^7 T" o
&pokeID); // Array of IDs to fill on output, p" F3 L: v5 P
: E# @; C" r$ p/ _$ G! h! [9 _ if (hr)
" M5 [7 w7 ]6 L {
4 F- ^* L3 o2 x& ?! q2 t/ l' M MessageBox ("Get Poke Unsuccessful");
1 y# s' n% T# E- \+ I return;2 S+ s% m1 O1 K" N0 C
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3 d( a; N+ J0 M% q0 ^% d6 y /**************************传递数据给extend**************************************/
( ^+ g& l( Q+ p& ` pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 T' P- C) I2 P! j9 {
# g* X4 w. y3 A, o; Q: T% x, G valueStr = SysAllocString((WCHAR *) L"1232");
' Q( Y& F2 p; ]: F/ j$ k' A VariantInit(&pokeVariant[0]);
5 Y5 M( T; x0 Q b8 h( e pokeVariant[0].vt = VT_BSTR;
! ~$ G8 H& d- s" J( N pokeVariant[0].bstrVal = valueStr;
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6 ?. C, u1 J% r8 K+ e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' i' r7 l8 z, k' n3 K VariantInit(&pokeVariant[1]); : h* d, M2 p' Y9 x
pokeVariant[1].vt = VT_BSTR;
; S6 ]4 b/ S- j pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");* W% X/ G+ t7 l3 E5 W c4 U& N
VariantInit(&pokeVariant[2]);
2 ?" o1 G0 h3 x$ n, i- S pokeVariant[2].vt = VT_BSTR;
* F) p3 u4 ^* \ pokeVariant[2].bstrVal = topicStr;- v0 {; Z( K, ^. I
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// Set the DISPPARAMS structure that holds the variant.4 G) X! d, ]! O
& j9 @% H0 g/ F' V7 @2 j! m dp.rgvarg = pokeVariant;
3 A8 ~$ b$ d5 L5 Q0 X9 e$ Q* C) d dp.cArgs = 3;
5 M5 X8 k* i* K! @! J& p" M dp.rgdispidNamedArgs = NULL;
1 _$ A" Z1 M8 a l8 \6 Q2 _+ W dp.cNamedArgs = 0;# {. C6 Y; h9 L C
6 t% T! }, k% a! ?5 d+ L _ // Call IDispatch::Invoke()) Q+ e5 x6 z8 u2 C3 C
3 z: L) h: b$ Y5 \' z0 c: ~) t hr = m_pDisp->Invoke(
: o. K2 r" ?1 C" \% ^ pokeID,* t# \/ Y( J' f9 E& A: ^ s
IID_NULL,
" k2 t' c# ^2 }( W; C0 b LOCALE_SYSTEM_DEFAULT,
3 |4 \! N% h0 X9 \: t" A: [4 } P DISPATCH_METHOD,' @- L" D+ A! I4 g1 C* ?
&dp,
/ X; B9 {" ?/ T NULL,
6 A8 y5 w: s7 |; [ &ei,
! ~. P4 Q$ ^) q. x &uiErr);8 p; H. @ E: Z( g! O/ C h) `( t
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SysFreeString(topicStr);0 l( ~( @/ n; Y6 v$ z
SysFreeString(itemStr);2 m- f! c7 F; T" Z9 [
SysFreeString(valueStr);/ P& ]/ d9 ~% ]4 V a
1 H9 i2 j$ p9 @7 R; C( D$ 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???5 v* s8 g% r8 D4 Z: ]! ~2 t
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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& g- K9 ^+ u+ B! H6 c4 D6 A( v' ` 2.这是request的程序
; w& M$ P# V/ v- \$ y# \ // Request a value from Extend$ J% x- S" w3 D0 E/ y
//
. K" [* d0 I% s" J+ R' @ // Initialize the variant that will hold the BSTR. Set the variant's
1 m; Q& z; `, L: x& d4 B // type flag to indicate the fact that this variant holds a BSTR. Place the
2 w5 S6 b" u1 \; j6 i // BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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; M* i' |0 I$ f% ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( ^& W4 O6 e$ j% ]/ D0 U2 B VariantInit(&requestVariant[0]);
3 X+ }# [9 ^. l% p( o; d0 d requestVariant[0].vt = VT_BSTR;; B8 g$ G4 z2 @- O7 `8 J3 p
requestVariant[0].bstrVal = itemStr;4 L! w: H; I9 N; V8 P! U: s+ X, I
" [) I3 f8 O* v: r, c topicStr = SysAllocString((WCHAR *) L"system");1 J6 Q& X+ u. T: | i8 ?
VariantInit(&requestVariant[1]); # `& i+ n% M5 u4 ?
requestVariant[1].vt = VT_BSTR;
; L1 Q) U# z7 J7 e1 A& W requestVariant[1].bstrVal = topicStr;" i' ^ ~; C( `
" Q0 Q5 F5 w7 L$ ^( |' ~& ` // Set the DISPPARAMS structure that holds the variant.; v7 H9 a' c) ?& C) ^0 `" m
: }( f+ l9 ~9 X( f0 H1 { dp2.rgvarg = requestVariant;" L* K# X1 l, E* @
dp2.cArgs = 2;
, g! w, e$ Q0 ?- ]& f dp2.rgdispidNamedArgs = NULL;
6 n$ c, H) d+ G; a dp2.cNamedArgs = 0;
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6 D- x0 M2 H: H5 T8 A( N* N; F( t var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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5 \ \) I$ {0 b+ R1 i hr = m_pDisp->Invoke(
4 O8 a6 g- X7 ~9 W u h% U) N requestID,
: z8 w7 G9 t0 z IID_NULL,) @5 N) `1 T- ]# Q- Q8 P& `- z y! M; X* W
LOCALE_SYSTEM_DEFAULT,& W7 z% N% d/ K: _) t# ~4 C8 {# w
DISPATCH_METHOD,, @2 f5 k9 A7 ?
&dp2,; K5 ~! c! x5 S1 L. w7 K/ r: D2 i, l
&var,. h4 b' k0 M7 g2 w
&ei,3 m# D; L; \: B8 l, U
&uiErr);) O; ~; @ k/ R5 X0 _) G
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SysFreeString(topicStr);
2 G" z f& V# l4 {- K2 z7 t SysFreeString(itemStr);, V) d1 M8 [/ o% T4 d
请问该程序是获得extend里面的哪个值?0 Y! ?. Q/ g' y" b# U
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????
我来回答