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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:
: U) v5 q4 j& ]5 [) CName = (WCHAR *) L"Poke";5 P0 |' m3 n r* F! @9 y* r
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hr = m_pDisp->GetIDsOfNames ($ x. ?, D: p R- r5 O/ R4 v" D4 }
IID_NULL, // reserved$ L7 r8 w& v* N4 i
&Name, // Array of names to get IDs for
. y2 x2 ] d( p! m 1, // # of names in the array5 r- j3 Q% p' E& a* H
LOCALE_SYSTEM_DEFAULT, // System locale2 @9 V6 d V3 Y+ o8 l- u
&pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");
. w9 H0 M/ ]- ]% F- a return;0 A9 n7 ~/ g. {- d1 h+ F7 q2 `" p( R
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& m2 U) B( i4 [+ P( R/**************************传递数据给extend**************************************/2 E. R) `3 r) T0 O( ~ c6 Y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
: c9 D {' Y. U+ k
" G5 h3 \8 g- \* y valueStr = SysAllocString((WCHAR *) L"1232");, m* | |3 z6 [- |
VariantInit(&pokeVariant[0]); + }* C4 ]& E9 |) G2 T
pokeVariant[0].vt = VT_BSTR;
. r3 A( N5 {1 F) v pokeVariant[0].bstrVal = valueStr;
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9 o; f1 K f8 j' [' E$ T1 ]) H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 u% Z- T0 U7 I) ?; { VariantInit(&pokeVariant[1]);
& I/ b: U5 i P3 D/ z pokeVariant[1].vt = VT_BSTR;6 d, i% a% E9 `/ e( C- t+ o8 _, k
pokeVariant[1].bstrVal = itemStr;" y. d' y$ [6 `, z
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topicStr = SysAllocString((WCHAR *) L"system");
: X& W O% O3 R; n VariantInit(&pokeVariant[2]); 9 F% a( V. a2 {# [2 @3 q/ e: c
pokeVariant[2].vt = VT_BSTR;4 o( \% Y' g. E7 ~* P2 u) c' }& j
pokeVariant[2].bstrVal = topicStr;
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+ G5 r( T8 S; X2 k# f// Set the DISPPARAMS structure that holds the variant.# j$ S7 Z3 u0 B
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dp.rgvarg = pokeVariant;
7 @8 E0 W& Y* s# f0 i dp.cArgs = 3;
7 m; |. f. e9 t0 ] dp.rgdispidNamedArgs = NULL;: N4 F1 _7 C- e% M; ]
dp.cNamedArgs = 0; A' D: i; p* c( k$ a
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// Call IDispatch::Invoke()
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2 f: }! v/ \% _5 F' O* `. b f hr = m_pDisp->Invoke(
. y' z) ~' }1 _# U% \0 ^+ y pokeID," W, k% ^6 P- t1 r% |# R( y( v% z
IID_NULL,9 r1 T+ ~' ~+ N5 E" Z
LOCALE_SYSTEM_DEFAULT,
: L. {! g9 l8 N# f- ~ DISPATCH_METHOD,8 \8 E% f. [- u- M/ l8 U
&dp,
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&ei,; ]6 \! ?3 \2 h9 d2 p$ V; F
&uiErr);
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SysFreeString(topicStr);2 w) V; V- G4 M9 H# X7 d0 L
SysFreeString(itemStr);1 v% J) ]. x0 _* @, O
SysFreeString(valueStr);
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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???. j$ Y5 K6 j8 W. r2 S$ v( w
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
% H# }0 O) k# _" I( k$ L9 x* W// Request a value from Extend# u( a! O" I; d6 l( h5 }; U
//
, k7 m# Z& _! M1 H$ x, |& D( H// Initialize the variant that will hold the BSTR. Set the variant's
& I8 B0 V; }9 N* p9 \9 C8 |5 i3 a; `// type flag to indicate the fact that this variant holds a BSTR. Place the
* V ]" P. U3 H" A q( u# k// BSTR into the variant structure.7 T7 H9 D% P3 c; N( c6 q
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 {7 d' l7 o l0 }" F1 K
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: a6 z9 F; A/ D; W) o
VariantInit(&requestVariant[0]);
; L5 U8 R: y! M! z% H6 N! V5 ~ requestVariant[0].vt = VT_BSTR;6 ^$ Q6 b) t) ^9 }0 j" E
requestVariant[0].bstrVal = itemStr;9 z H/ U( X5 n# ~4 L$ \9 x4 _
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topicStr = SysAllocString((WCHAR *) L"system");
, q8 q2 O) `( D G" D VariantInit(&requestVariant[1]);
1 I& C2 }. D. L" L) T/ w4 U0 |8 l: O* n requestVariant[1].vt = VT_BSTR;
% K3 H0 {, Z& H requestVariant[1].bstrVal = topicStr;
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$ q4 s8 G+ u! [( w% Z" W" w+ y, I// Set the DISPPARAMS structure that holds the variant./ t! C) M- s( q) J8 B5 z
' h+ J$ ^+ ^, ?5 }/ b6 b0 U dp2.rgvarg = requestVariant;
. L# A i1 O" f( y dp2.cArgs = 2;1 p' v/ h! Y: K9 Z
dp2.rgdispidNamedArgs = NULL;
7 ~, |( p0 q% S n dp2.cNamedArgs = 0;* B# b# e; d; A
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var.vt = VT_EMPTY;
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7 p( J2 {3 ]- p; i+ u// Call IDispatch::Invoke()* H4 X0 Q& @0 u/ |% z9 U* K7 ~
7 D5 O2 b: }6 R+ V8 w5 G: @+ Y hr = m_pDisp->Invoke(0 ]0 T& Q, Q2 r7 S
requestID,, s0 U5 g& Q+ x3 ^
IID_NULL,* p* O; d/ V; v) ?! w
LOCALE_SYSTEM_DEFAULT,
9 x4 r' h+ M5 b* g DISPATCH_METHOD,
; {3 d! ?1 j$ ~+ B2 w &dp2,* v$ x2 N/ y7 ]' q1 L6 ]1 d
&var,
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&uiErr);
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SysFreeString(topicStr);
6 w/ w8 _/ T! h, I6 l SysFreeString(itemStr);6 d+ ]6 c+ o) n+ E
请问该程序是获得extend里面的哪个值?
. B7 e/ Y8 H. J! m. q# h% n( J4 ]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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