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:' |1 {- t3 B; K# Z E
Name = (WCHAR *) L"Poke"; / _0 f% z8 f# y3 n" { 3 J4 Q4 s9 e8 t! B# b4 y% @' A K- G
hr = m_pDisp->GetIDsOfNames ( 6 d7 Y, M: I+ P- w0 n/ K/ @ IID_NULL, // reserved . d- \! g7 Y, b- d) a &Name, // Array of names to get IDs for: q. G% W0 S u" Y6 m/ W
1, // # of names in the array 1 [, B9 e4 t. d# ^/ I6 X8 } LOCALE_SYSTEM_DEFAULT, // System locale5 v3 Y. Z' j! ?* Q* m6 Z( w
&pokeID); // Array of IDs to fill on output& ^) ?# w' T/ ?2 Y; r
( c( A7 F# s8 L: E0 p if (hr)3 U7 u/ ~' B) T0 Q O
{ 4 @) [, e/ E' y& h MessageBox ("Get Poke Unsuccessful"); {: Y' X) w6 }) N# C
return; * l1 e# N N0 Q) T; S3 b } ; ~# W t' M0 @8 L5 H3 J0 m6 [8 n! t" Q# ?: l* O) v. S
/**************************传递数据给extend**************************************/. I( }! x9 r5 @5 v8 p0 G0 M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, z) B: h; c, k1 P) ^, h( R& L9 U2 t$ R
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valueStr = SysAllocString((WCHAR *) L"1232"); ' u9 Z+ t5 s" a& |# B- } VariantInit(&pokeVariant[0]); . v: Z1 }; }3 ]
pokeVariant[0].vt = VT_BSTR; ) @- g9 l+ [5 [, J1 J# y pokeVariant[0].bstrVal = valueStr;/ p9 @/ h& Z. c
5 P3 M9 H2 b$ X' c) a0 D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . o" N. V6 q6 h F VariantInit(&pokeVariant[1]); 9 `# J6 ], S1 [& h Y8 [5 F
pokeVariant[1].vt = VT_BSTR;! j1 B1 ^3 }5 A! A8 t- N1 z
pokeVariant[1].bstrVal = itemStr;" N! P. L' g y6 L2 k
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topicStr = SysAllocString((WCHAR *) L"system");4 i, K8 M4 h% ?- p2 j
VariantInit(&pokeVariant[2]); ( d' A' a7 P3 [1 k, Z; R
pokeVariant[2].vt = VT_BSTR;$ _5 d5 y% Z' X" S6 z: a: a* z
pokeVariant[2].bstrVal = topicStr;% q, W" n" ]7 J# s6 n
/ y- \. c9 t5 W// Set the DISPPARAMS structure that holds the variant. : z& ]) n9 E. r t! d 7 j8 `; E. h# [ \3 S' ]6 b dp.rgvarg = pokeVariant;, R- z/ n& X- _5 w
dp.cArgs = 3;+ J6 v8 x: d9 z- c: j w0 O
dp.rgdispidNamedArgs = NULL; ) u, Z& I4 R* @. T- @" h dp.cNamedArgs = 0; 5 x M0 n& B! p4 c0 `) Y" c 2 F& t) l3 a$ v1 J+ D+ b& k- |// Call IDispatch::Invoke(); H/ s" f1 w/ T [4 V
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hr = m_pDisp->Invoke( " E. P$ m2 ]! E" Z! ^/ @( F pokeID,2 G ]8 C6 Q2 R- g1 y4 G, {
IID_NULL,. Z L4 M, c: S$ t* \
LOCALE_SYSTEM_DEFAULT, 8 N# c+ X" F* B! a4 B7 G DISPATCH_METHOD, ; y( A% v+ u( v/ L &dp, 2 c: V8 I) ? J8 Z, C" ? NULL,7 _" H6 ]' `& `0 g/ V
&ei,7 O2 B5 K& `4 P; G
&uiErr);0 ?& Z! C, ?' x; \
2 [8 ]3 g- I9 e" } I* E7 I* F SysFreeString(topicStr); P5 l2 W) @$ ? SysFreeString(itemStr); & B1 }: C1 e. B, ^! L9 b/ v SysFreeString(valueStr); ! F, V S1 u% u7 Q: H; s7 ~1 b5 L u5 s( `
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???) l5 H) }. W u/ s% z) }! y
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????2 _$ d7 ~6 Q$ N5 k3 v- k9 a& t( A
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2.这是request的程序* l" d7 C% q0 ], Q5 ]3 t# M
// Request a value from Extend1 { Q( N1 g& H
//6 F0 F3 f3 [9 F) n) f2 @
// Initialize the variant that will hold the BSTR. Set the variant's . D4 [' h q1 F. u3 X// type flag to indicate the fact that this variant holds a BSTR. Place the2 B' w' [. j6 f
// BSTR into the variant structure. 1 a5 ?; D) _8 _- s9 B: A! [, n, @ g* O/ B
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 N3 p! W, B- K; x6 J2 `+ D . T& X; B7 d5 e8 Z/ R- b$ _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 t, B; `& n* D3 E2 T+ a; M. T
VariantInit(&requestVariant[0]); % a/ a6 S# w1 j; Q, ]- k0 C r requestVariant[0].vt = VT_BSTR; ' e3 R; n& C1 l8 Q7 \1 G' | requestVariant[0].bstrVal = itemStr;! c! a$ R$ g. f5 v# [* L
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topicStr = SysAllocString((WCHAR *) L"system"); % m! w0 L! }1 V8 F J! R3 r VariantInit(&requestVariant[1]); + ~0 O7 T% L# a3 |* W/ Y1 D6 _ requestVariant[1].vt = VT_BSTR;2 ]' L0 W5 a3 f
requestVariant[1].bstrVal = topicStr;! m4 J$ n2 ? k ]+ ?
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// Set the DISPPARAMS structure that holds the variant. " L+ O' ^+ v, N Z' E' [. O# M& X0 s! Z2 g
dp2.rgvarg = requestVariant; " W( r3 j \, N8 `1 X dp2.cArgs = 2;* e& {7 Z9 r3 u9 c
dp2.rgdispidNamedArgs = NULL;1 Q8 T& s" d5 A8 o9 `
dp2.cNamedArgs = 0; . { n( U/ {( z+ W8 M% r 5 {1 e8 [ B( ?8 ^6 V* N, F6 q; M( l var.vt = VT_EMPTY;4 M1 I4 D4 q+ H {* R
+ z; i* L. N5 [ h# j- e// Call IDispatch::Invoke()% L }9 c0 \; h
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hr = m_pDisp->Invoke(& X! V! ? T! p1 G( ?, ^5 E C, M
requestID,& k2 Z7 i& b$ F
IID_NULL,/ e5 Q5 w$ R/ F1 A
LOCALE_SYSTEM_DEFAULT, ; Z Z' {9 l! X DISPATCH_METHOD, / ?- ^5 ~- k% O &dp2, 5 ?! P8 j. U5 Z0 a9 W &var, 1 y9 u# ?$ @3 N: } &ei, 7 {, v2 }- c' ~ &uiErr); . @5 Z; V' w% |9 S5 X: H1 @- G5 c* k _0 i# ~: ~
SysFreeString(topicStr);: }6 E8 ~( W8 C' T V
SysFreeString(itemStr);1 W1 C g& [4 p: k
请问该程序是获得extend里面的哪个值? & `7 c* ]: k3 f# T4 X' V9 f7 U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????