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: - Q1 V5 Y6 D. d; h9 {0 mName = (WCHAR *) L"Poke";: }: A3 I0 e1 s( r& E% k
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hr = m_pDisp->GetIDsOfNames (9 |, F8 J* T& _" l1 V, v; w* k; g
IID_NULL, // reserved 5 L; U( I6 N C5 l/ a( b" ^! U" W &Name, // Array of names to get IDs for 2 m& E. l! c5 ` m1 N5 R9 X 1, // # of names in the array % E R/ m6 T7 }2 O# U LOCALE_SYSTEM_DEFAULT, // System locale- U& t- ]4 j. G0 P: u: f
&pokeID); // Array of IDs to fill on output; u! r2 i. s+ \7 u! H7 C* A
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if (hr) ?7 _# ]" n3 A# b' ? E {$ {8 c, C' E& ` O. j; o" z
MessageBox ("Get Poke Unsuccessful"); & q4 |9 ?) O6 g' H( P return; % J9 K9 w4 @7 j) N) ~4 ] }& J; ]0 h( a" t0 R5 J) J# C" M
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/**************************传递数据给extend**************************************/, o0 ^/ p( W8 r4 K
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : T2 K7 j0 o( Q8 L % t9 ~# k( b3 Y% r. u" E
valueStr = SysAllocString((WCHAR *) L"1232");* p3 _* j5 r" G5 r, z1 v( b
VariantInit(&pokeVariant[0]); + K( E0 J$ Y1 Y; a' S T pokeVariant[0].vt = VT_BSTR;- j3 a: Q h" n5 j% R
pokeVariant[0].bstrVal = valueStr; # w3 L' ^- X7 n" V% i, b# q$ G $ g8 [+ _' n2 G' }# \! P! a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 i" I) b/ G" r- \% z1 l+ C' _ VariantInit(&pokeVariant[1]); + Y4 l3 [# d* ]5 W" Q2 a pokeVariant[1].vt = VT_BSTR; : q" B( U; z! C* Z pokeVariant[1].bstrVal = itemStr;! C/ D3 r9 t$ a0 O8 U k
; r6 T, i G0 K' I; H; n& Q5 | topicStr = SysAllocString((WCHAR *) L"system");) [; K4 j2 O# ]3 @
VariantInit(&pokeVariant[2]); 5 }" Q( H; u3 z: o H) f pokeVariant[2].vt = VT_BSTR;/ J! X% N' K( u
pokeVariant[2].bstrVal = topicStr;% B0 ~# H/ E# s+ }3 h
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// Set the DISPPARAMS structure that holds the variant.5 S2 a! C* h0 {% j/ O0 `8 T
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dp.rgvarg = pokeVariant;/ U, l* Y+ S3 Q/ R& X
dp.cArgs = 3; / g5 ^$ T b9 h: d$ G dp.rgdispidNamedArgs = NULL; 1 I" R) r" \% Z% s& V dp.cNamedArgs = 0; ! w& X, \1 V _4 E( Y# D$ A( ]7 j$ x) q l
// Call IDispatch::Invoke()" o( t6 U* W6 R+ P& w( \
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hr = m_pDisp->Invoke() `" {; j+ g B& q9 r$ e
pokeID, 5 ^& e2 G, |, {: s7 g- K2 I2 Q IID_NULL, v' x7 m2 O6 n* q" z
LOCALE_SYSTEM_DEFAULT, , m6 p3 L! G4 C+ g: x. n DISPATCH_METHOD, ; E+ S Y" i9 y7 J. u &dp, + y) P8 f& O+ S) i+ R8 m NULL, 2 X1 `4 V8 i) H5 n &ei, ; @7 e) A) p9 }( F- y &uiErr);4 K% ^, H, q7 o
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SysFreeString(topicStr);0 ^& ]4 K# T& V) N6 s
SysFreeString(itemStr);5 L- _4 H) a" ^8 E1 h1 ~7 x
SysFreeString(valueStr);3 b# [+ E+ v9 R& ~( u7 d
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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???& a+ N1 O0 R6 |% 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????* O7 \2 o5 q# Z
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2.这是request的程序 ' e% k4 Q/ c$ z// Request a value from Extend 8 x2 L6 F. }" c//2 [) l7 Q( V k5 Q( p0 Y$ O$ h0 J& m% _3 m
// Initialize the variant that will hold the BSTR. Set the variant's% [3 Q+ l, j9 N
// type flag to indicate the fact that this variant holds a BSTR. Place the . H9 M" Z/ W3 R4 ^. \; e// BSTR into the variant structure. & E+ V U" O7 }4 g T+ r& a. }. b2 F requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); N3 S% |1 S! E4 b9 z) f . p, w' g! P, c |0 N6 L7 j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 Y7 o7 k" {! L) O( T0 f. \3 n
VariantInit(&requestVariant[0]); J, w+ N) t! L2 M& A V9 o requestVariant[0].vt = VT_BSTR; 8 \/ Q# t F- A! d% c: n! M requestVariant[0].bstrVal = itemStr;2 S/ J) _* U) a- e, r# G
+ v0 ]7 ?9 R- x! G% n* ~; C9 W8 J @ topicStr = SysAllocString((WCHAR *) L"system");2 C) X) d$ S; W/ p$ e
VariantInit(&requestVariant[1]); 5 z1 E1 f: Y( l/ Y6 T# k requestVariant[1].vt = VT_BSTR;$ d# `, t4 S" d9 s
requestVariant[1].bstrVal = topicStr;" |6 z1 o. m- N ~9 M
/ r6 b# c; D( y' c1 K/ \' m6 k// Set the DISPPARAMS structure that holds the variant. : j2 B0 T5 h, t , E [1 I. B3 C, j! o& ]7 U dp2.rgvarg = requestVariant; - K2 F9 [ L0 e/ x dp2.cArgs = 2; % [3 H4 j j. a+ t' O$ W* n dp2.rgdispidNamedArgs = NULL;2 [9 E) ~5 H0 n- L! Z! B
dp2.cNamedArgs = 0; $ P/ _8 U7 X. c% R8 a! p. d# e5 Z1 m Y& B. C
var.vt = VT_EMPTY; * V. k: J7 X6 F' W" O% Z* J% }3 |+ D) F/ z( U% ?
// Call IDispatch::Invoke() + H! J1 v1 R: j, E5 l2 X# i+ N8 ~6 o& R( v, Q. K" E& u( y
hr = m_pDisp->Invoke( ) a. h' w' }; |8 y requestID,, Y, [( T- F$ r) W. D8 s
IID_NULL, " r" [( D4 u: S LOCALE_SYSTEM_DEFAULT,6 h2 u: _3 N* t/ b- r) k
DISPATCH_METHOD, / J- h8 Q/ a1 N/ D- R9 w &dp2," T9 N% L) {; N" ]0 g& f J
&var," t5 e" S1 Y* A
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&uiErr); ; H: k4 o* p$ Q; e3 U0 K- [ ' ~4 H" s6 ~" m/ B9 Z! V SysFreeString(topicStr);1 c0 R: K1 S! t% k& M
SysFreeString(itemStr);* y$ p9 e* L2 ~5 H* D" _8 f
请问该程序是获得extend里面的哪个值? ?9 Y# K1 ^' v1 A( K3 P
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????