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: 8 @# }2 ^. d$ _Name = (WCHAR *) L"Poke"; ; J$ H7 G% c& Q% m& U: l# U1 Y ; H" a) u; v" h( X
hr = m_pDisp->GetIDsOfNames ( 8 W$ @3 f+ e, \7 _: l D1 Q1 e IID_NULL, // reserved. n- a5 X! b" t H' u# l. D" |
&Name, // Array of names to get IDs for2 `. l* F9 n4 w, {; ~* R9 P) d1 h- V
1, // # of names in the array - T& Q4 ~& r. [ LOCALE_SYSTEM_DEFAULT, // System locale ! D4 i, J$ U' J& X# H4 P &pokeID); // Array of IDs to fill on output " S$ L8 A8 \/ E* g * Z% l B: w/ A' f: _ if (hr)# ~! m. m5 j F1 w7 ] u& ~1 k
{! W+ d: e1 P/ z9 b3 Q6 j4 s. ]
MessageBox ("Get Poke Unsuccessful"); 0 H& O# I/ g7 Y- e- Z9 N7 } return; # R* Z0 k# K$ i4 @ }( F! ?# H1 r. X1 {, @" L
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/**************************传递数据给extend**************************************/ - R; r# g6 U e! ~. v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * L' j3 |7 a6 @- z4 i6 Z3 L- ~ ' f1 o" z: |$ m J" ]: ~ valueStr = SysAllocString((WCHAR *) L"1232");. o6 P0 ~9 r0 q" s
VariantInit(&pokeVariant[0]); + Q. V7 g; V* v7 V, _* P4 W P( ]
pokeVariant[0].vt = VT_BSTR; & |3 Y6 T8 ] u L u6 P1 v pokeVariant[0].bstrVal = valueStr;, w, i, U& T* i$ f) D, {; M. h1 t
7 [5 H2 v+ q2 y/ H2 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . }/ r4 Y# h! m* W VariantInit(&pokeVariant[1]); ) Y! E1 V. K/ v x pokeVariant[1].vt = VT_BSTR;9 W5 j# H$ {/ G& j% P
pokeVariant[1].bstrVal = itemStr; $ w% A! v5 O9 e( K) e* q & U2 J8 p5 q, Q4 ^ topicStr = SysAllocString((WCHAR *) L"system"); + n# }; L, O) u$ n6 } VariantInit(&pokeVariant[2]); ! O; D& M# P: M* c- o9 _ pokeVariant[2].vt = VT_BSTR; & s0 m" c9 l+ a; J4 W# t pokeVariant[2].bstrVal = topicStr; 3 `! b6 o9 e0 N3 H 9 f" ]/ Z# E8 \$ Z) S! N. f// Set the DISPPARAMS structure that holds the variant. & S2 f9 a, [; {2 M8 e. T / \, J9 _/ F$ b5 N: C8 T" a' _, e+ T dp.rgvarg = pokeVariant;# X y* E8 @ f( Y) p3 B, \3 }
dp.cArgs = 3;- v$ A, X( S1 e* v( a
dp.rgdispidNamedArgs = NULL;* M6 w! m: h; {3 j8 G+ j
dp.cNamedArgs = 0;% m/ |; J; X; b4 |' u
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// Call IDispatch::Invoke()' w/ W3 J# e8 N3 k8 ?
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hr = m_pDisp->Invoke( / G+ d7 k, s7 U2 K5 ^6 t: W pokeID, / ^- R0 e |- [7 I IID_NULL,6 l. i* K5 B1 T) q+ `* B* Y
LOCALE_SYSTEM_DEFAULT,. {( x8 _1 Y1 V
DISPATCH_METHOD, 9 H4 f- s0 G/ m) p. a2 q/ n$ E& s% i &dp, $ [; _) Y% }# S$ _1 P% j- I) ? NULL, A, H" [8 c3 Q& n; x- X. e
&ei, 4 T3 G2 w) ^6 I; Y' t; Y &uiErr);! D. [4 ?* \1 X3 G
t, q5 @( m7 i: v SysFreeString(topicStr); 8 l5 Q4 C. T# u: Q- U4 E7 W SysFreeString(itemStr); - g1 z* i. Y( B5 z$ ` SysFreeString(valueStr);3 t# a0 x# U0 Z) x& |& a/ z
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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??? 7 n; h8 ^. I! E( `- h$ R) {% u8 N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???? # `- |7 G7 w+ o3 T. u$ F5 i8 g 1 w5 a! l! e7 t' Q e- h% P; k
2.这是request的程序 & p5 s* \# [" `4 U// Request a value from Extend& }2 g/ S9 {8 h- ]$ A) |8 L
// ) b/ n- p+ h. `' d0 s6 c// Initialize the variant that will hold the BSTR. Set the variant's $ N: Z) d) K+ t/ r4 m// type flag to indicate the fact that this variant holds a BSTR. Place the 1 a" k* ~) @; b9 Q4 D7 M// BSTR into the variant structure., e- W. d* [* u; T3 N+ p6 l
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 n' I) g w7 y5 O/ F9 H7 W1 N6 d
& N ^- k5 Y- f/ [, H/ X5 w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 ~/ p: x. E1 l% o ] VariantInit(&requestVariant[0]); 7 Z8 u* L' _0 c0 C l) `1 R
requestVariant[0].vt = VT_BSTR; g, H' f. t7 _! [ requestVariant[0].bstrVal = itemStr;: S8 O' {1 L' ?4 Y6 ?( V
) q. {1 ?: b8 Q2 o2 ?4 I# b/ ~: s topicStr = SysAllocString((WCHAR *) L"system"); 4 H7 Y: S! z/ }5 `, M VariantInit(&requestVariant[1]); ! D6 X- w: V$ W2 B7 L: Z requestVariant[1].vt = VT_BSTR; 2 [. \1 O5 R+ [2 x4 f requestVariant[1].bstrVal = topicStr; V7 S3 E* v# G9 d6 ~
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// Set the DISPPARAMS structure that holds the variant. 3 X* \$ q& [+ ]9 b. @! N ) P! F! k j; ?& x. ^* W- t" C dp2.rgvarg = requestVariant; 0 [- b) m, G1 N2 }: _1 G0 A dp2.cArgs = 2; ! \( q% h9 ^ D0 r- G$ Y dp2.rgdispidNamedArgs = NULL;+ o) Y; A7 Z- k9 W: Q
dp2.cNamedArgs = 0; ) U% T: Y* [, D 8 _" i5 C" Y7 R1 Q6 L H var.vt = VT_EMPTY; `$ M U$ Y& L1 Z' U# P - p+ v; z4 ~( S. q// Call IDispatch::Invoke()' [1 a) b4 R9 X5 g* u" J
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hr = m_pDisp->Invoke( : Q; B; ^; z; ^/ G' u requestID,- I4 E& F0 T8 }# X7 e9 h
IID_NULL, ; a* x% V3 U W8 Q [ LOCALE_SYSTEM_DEFAULT,1 Z9 w: u( C8 S
DISPATCH_METHOD, * I7 {6 ^# R4 W7 `4 g d0 D &dp2, 5 ~* `$ ^# y+ c8 M. @ &var,: J1 }7 y' D; e) S$ b
&ei,) g# A4 g: o5 ?( `- u. K0 r2 J
&uiErr); & U7 s7 n9 o- ~& N4 a5 ] q" S4 z/ b* ^1 D4 {$ A
SysFreeString(topicStr);2 B" a( ~% ~' w6 k% ^
SysFreeString(itemStr);- [- {" ]* ~* M, l7 U3 x* s
请问该程序是获得extend里面的哪个值? 0 b4 S5 Z1 G) i* R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????