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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:3 n' B& l1 m7 ]' {; x
Name = (WCHAR *) L"Poke";* { {5 {6 ~! C
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hr = m_pDisp->GetIDsOfNames (
. G! c: K4 _) T3 @3 l$ b/ }( @: e IID_NULL, // reserved' E- A' j2 P% \$ H4 @
&Name, // Array of names to get IDs for
. r, v; V! P% I; Q9 ]& W 1, // # of names in the array' W2 |% Q0 S" W$ C
LOCALE_SYSTEM_DEFAULT, // System locale* V8 f) E( n; x6 G
&pokeID); // Array of IDs to fill on output4 w H B2 F8 i0 D
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if (hr), u( |4 [( d. P$ C
{: F" c2 c9 R' {, g( q* U& j6 H
MessageBox ("Get Poke Unsuccessful");
5 \" p' U* l9 f, m& n return;4 s1 `( d d3 S1 a/ N o) V
}
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2 J# J$ z4 {5 }2 j1 |7 P- M/**************************传递数据给extend**************************************/
( G9 M) T' s& b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
: ]$ ^9 _+ x% \' ?5 H4 z VariantInit(&pokeVariant[0]); $ ^. U5 K7 U' G
pokeVariant[0].vt = VT_BSTR;
; v3 ]; y; u. d. M pokeVariant[0].bstrVal = valueStr;" ]$ k6 _/ L9 r. @$ S
# v) d' U+ I9 Y+ I, [" c* ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 @7 c7 C/ z' k' G
VariantInit(&pokeVariant[1]); ) B! \: O E7 b" \0 L5 G2 g
pokeVariant[1].vt = VT_BSTR;0 W$ e$ W6 X3 B. h7 X9 V
pokeVariant[1].bstrVal = itemStr;2 c ]+ j" k; e2 \3 l
. O! U9 f3 }" A. n5 I9 C2 f topicStr = SysAllocString((WCHAR *) L"system");
7 _& s% W1 ~/ G* X! E) d VariantInit(&pokeVariant[2]); 3 o* b4 t3 b+ ~, M! N+ A4 u
pokeVariant[2].vt = VT_BSTR;, z4 ?3 Z6 m; ^4 Q l2 R4 A
pokeVariant[2].bstrVal = topicStr;
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3 X, |5 _ {( C3 O// Set the DISPPARAMS structure that holds the variant.& Z4 y9 j' G, a: A* A" v. X
/ F5 s" |6 m6 C$ A; }6 v dp.rgvarg = pokeVariant;1 B# M) r+ b" z+ p2 W; G/ M
dp.cArgs = 3;' E. E/ O3 N' v; s) B3 k
dp.rgdispidNamedArgs = NULL;
. Q; H! o/ x f+ r dp.cNamedArgs = 0;1 V% q7 \8 E- |; f6 z9 s
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// Call IDispatch::Invoke(), v9 @" p- D4 D
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hr = m_pDisp->Invoke(5 S3 z& ~9 ~, T) h- `5 F0 r: K- T
pokeID,
" Q5 S6 A/ t5 m' `3 h$ D IID_NULL," u( Q, V/ B2 g |; A* X. U
LOCALE_SYSTEM_DEFAULT,- N& B3 b$ C; r
DISPATCH_METHOD,6 D, O4 w- ~6 v+ O# T& K
&dp,7 S+ `9 M/ b I+ ^! f# q
NULL,
% M: q6 k% H" R8 Q( H &ei,
0 q7 I7 n7 W: w& P) n &uiErr);
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SysFreeString(topicStr);$ x) v$ o; E+ e4 f8 Q; E+ X
SysFreeString(itemStr);& j. F( a5 V% i- P: Y7 p; B- W
SysFreeString(valueStr);' }- |5 c5 d' D3 y- m: t
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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???% k6 ] ^/ ^3 h, i( t& z
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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/ M7 I9 G0 F+ A# F2 i: D3 f2.这是request的程序3 }2 m; l# g0 |* A4 f6 l3 C) t% z
// Request a value from Extend
4 X: i/ T# d, h7 o% ^0 R" t//
: I" j4 y& S% T2 P' \; i( b// Initialize the variant that will hold the BSTR. Set the variant's
7 g# q5 r! ]" h% x' T* d7 o1 I" O// type flag to indicate the fact that this variant holds a BSTR. Place the) e: o4 e, b9 ?+ L2 W2 j
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. b9 i1 f! \! L3 x" X4 A
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# v& @7 a/ p6 ~) @; [8 U4 o VariantInit(&requestVariant[0]); # `1 E/ P$ W: s; }1 }* S
requestVariant[0].vt = VT_BSTR;
( _5 e. @' v7 i% H requestVariant[0].bstrVal = itemStr;5 I8 A# a! K; _6 }
, R1 h: @1 H3 T& a* {
topicStr = SysAllocString((WCHAR *) L"system");
3 Z* ]2 _: G% }0 C$ T+ J4 L. B- _8 |+ S VariantInit(&requestVariant[1]); 1 h8 [" ~' ~" B$ X& B: E
requestVariant[1].vt = VT_BSTR;! R0 G4 [6 I& |1 T( i2 |/ }" _/ G
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
. M: l7 u' J+ O* M: i1 ?$ V( } dp2.cArgs = 2;; v" O) w9 ^* m6 f2 g$ `
dp2.rgdispidNamedArgs = NULL;
) A6 }1 _: I3 A/ ` dp2.cNamedArgs = 0;# u- k, ] \* \5 p+ H8 _4 l3 V
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()+ l3 q3 M2 E. [. @- n8 W
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hr = m_pDisp->Invoke(6 x3 R5 o9 y2 y
requestID,0 k3 r- A# T6 g/ c8 I
IID_NULL,+ q/ z' l" A) v$ q( d) d
LOCALE_SYSTEM_DEFAULT,5 ~) U! E4 K. W# x5 m
DISPATCH_METHOD,
4 \6 C0 m! S( k" m9 t &dp2,
8 X/ T" c1 O& ]3 @% r2 _: e &var,
! g( U0 j E0 T. I' O &ei,9 ~! @! }; r: t+ t5 `
&uiErr);
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SysFreeString(topicStr);
0 _7 h, |7 G+ ^; S; h$ j' Z SysFreeString(itemStr);
9 b' z7 f& X# W0 E请问该程序是获得extend里面的哪个值?
. y6 N. A8 N$ A% g: z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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