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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:/ k, L: ?5 I: g: e8 h" ^: }
Name = (WCHAR *) L"Poke";
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}/ D! r$ Y+ q4 h5 I9 {7 h, b& s6 U hr = m_pDisp->GetIDsOfNames (9 O) J/ g9 W: t2 {% W- f
IID_NULL, // reserved5 X$ S, ~3 H: A
&Name, // Array of names to get IDs for
8 J) V/ u: T, o0 o 1, // # of names in the array
9 a( W+ Q& q/ ?; K2 a LOCALE_SYSTEM_DEFAULT, // System locale0 W, ^) [8 N! S6 k2 N. y
&pokeID); // Array of IDs to fill on output
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if (hr)# `4 F9 h0 R: _
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MessageBox ("Get Poke Unsuccessful");
+ I; V0 f# v$ F% { return;! n- H3 e$ E \5 G
}
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, L9 C* R8 g3 d/**************************传递数据给extend**************************************/
) G" t0 {& Q1 C/ i+ I0 A5 i4 r pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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1 m' x0 U! s3 G: J4 |( o* v: {" n6 U valueStr = SysAllocString((WCHAR *) L"1232");
% L8 \- u- r* _0 K- S VariantInit(&pokeVariant[0]); / N! R+ l' M1 o8 w0 L
pokeVariant[0].vt = VT_BSTR;
( t4 O. d2 }1 i# j$ k$ s% a; X$ t pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
# j! |5 W( s. V, W+ n+ Y VariantInit(&pokeVariant[1]);
1 F9 f+ m! @' Y( S# y pokeVariant[1].vt = VT_BSTR;% `: V% P$ Y- Q* F' k6 K0 j4 D
pokeVariant[1].bstrVal = itemStr;6 @ s, U3 R: `, w& K7 }4 R
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topicStr = SysAllocString((WCHAR *) L"system");
) E" i: S. j& `. r5 w VariantInit(&pokeVariant[2]); . v+ M/ K0 ]4 g+ O# i! ?
pokeVariant[2].vt = VT_BSTR;( l$ o% @9 q3 t3 r4 A( y# b
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.; ?" W6 v5 e) G/ Z/ a' F( P' f
( `, v4 T# \7 |+ T9 ] dp.rgvarg = pokeVariant;, t% p @" A `1 T1 q9 p
dp.cArgs = 3;
* }4 v2 j' S! i, M" }" x dp.rgdispidNamedArgs = NULL;
( |* i D e' M" c dp.cNamedArgs = 0;3 i* n9 ~" I: d3 j" H7 j
?. H6 L7 F7 {; C' @3 A// Call IDispatch::Invoke()
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- O) k. O: \# z& [' _ hr = m_pDisp->Invoke(: E$ n+ A6 q! a& f7 c6 T
pokeID,; l1 x1 i9 l: l9 y; r" [% d
IID_NULL,% N& Y1 J. ]2 X2 K9 ~0 D# O* j* _
LOCALE_SYSTEM_DEFAULT,
$ D- ~- q2 C& p4 _2 C2 j DISPATCH_METHOD,3 K+ Z$ C" ?* S
&dp,
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&ei,
' o5 o! ?/ e4 R5 C2 D5 P &uiErr);! G( `! x0 [! S' o2 |
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SysFreeString(topicStr);" J* R2 b% Z4 Z- R1 {; Y. ]7 o
SysFreeString(itemStr);
7 w0 `: n$ a0 [) J/ f) ]$ b SysFreeString(valueStr);
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/ h: Z. z; K; y; K9 a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???9 r1 L8 v1 ]+ h+ y- 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????& {9 ~! }/ Z( _
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2.这是request的程序% x! e( w# t. k
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
% f& P+ Z E' g# E* u" H// type flag to indicate the fact that this variant holds a BSTR. Place the6 ?1 K/ p+ ~- i* _ P9 D& }' J
// BSTR into the variant structure.
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0 _: L! D* r8 S! e4 ` requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! g( f6 T! r1 U @+ q% A
VariantInit(&requestVariant[0]);
" Y5 v$ L, W4 `3 [* Z1 t requestVariant[0].vt = VT_BSTR;
% b2 u4 Y; t" U/ |! @- C requestVariant[0].bstrVal = itemStr;0 q0 ]: m7 k) Y2 x& ~9 y
. F# s @9 z N: K4 d: x5 l/ b, Y topicStr = SysAllocString((WCHAR *) L"system");
; [4 N4 P5 E/ A+ L VariantInit(&requestVariant[1]); 5 u- h& Z0 ^" o' v8 J# l. Y4 g
requestVariant[1].vt = VT_BSTR;
) U& T" g. [2 v- l5 \/ u requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.; A8 \% L E: J9 k' [( h
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dp2.rgvarg = requestVariant;
* o6 v( v+ Y" @' \ dp2.cArgs = 2;4 `# p: @) v7 t' G% Y" N; [
dp2.rgdispidNamedArgs = NULL;
; L' m& Y! @0 U! p+ | dp2.cNamedArgs = 0;' Q- u) c7 u1 Y6 E! Z: V( {
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var.vt = VT_EMPTY;. N* t) c. { [$ L0 k8 M
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// Call IDispatch::Invoke()
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9 _$ O. c8 ^% s hr = m_pDisp->Invoke(
: u0 o" `2 } }$ q. b3 \/ N, \ requestID,! I9 m O. E2 B1 B: d
IID_NULL,/ u0 V( c- w- Y0 U
LOCALE_SYSTEM_DEFAULT,- |( @1 _4 R( ], m% c' |
DISPATCH_METHOD,) f' o) E6 c k7 D! @& g. w
&dp2,/ r8 P; r8 V; C. w
&var, y M+ V0 G) V) f& v* u( M
&ei,. z- ]9 ~. D# x# V7 i
&uiErr);
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9 [; A/ S! n3 n SysFreeString(topicStr);- Z8 U+ S* i$ L \/ a. A
SysFreeString(itemStr);
' m7 z; g0 e+ g9 Y, G5 U) v请问该程序是获得extend里面的哪个值?+ }, k8 v& x7 V# A
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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