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: ! P4 e- H5 {8 N" i0 VName = (WCHAR *) L"Poke"; , I2 `5 R% K! p8 `: t+ ~ * M# q0 G/ O2 }
hr = m_pDisp->GetIDsOfNames (3 Y& z* z- K- d9 Q3 v+ H
IID_NULL, // reserved ' [. P8 v7 L" k &Name, // Array of names to get IDs for6 A2 Z! N3 F$ Q0 t% V; O9 g; e* A
1, // # of names in the array4 z2 t( _; L7 b! c
LOCALE_SYSTEM_DEFAULT, // System locale ( ~& K/ S2 W" p' [* A9 L# W( F- C &pokeID); // Array of IDs to fill on output! Q3 _# m4 ?- s. z; M4 e% b0 y0 L
& `7 B9 ^5 R+ O2 c, c if (hr) 0 u# w( K$ o, Y" b2 O/ Z9 d {. A, i" B7 {; D9 f6 u; ~
MessageBox ("Get Poke Unsuccessful");5 y% l: N3 e' X% B* S/ t
return;" j, d: I: X0 e E8 K) U# L+ E. c
} 7 c) U7 U* w" E$ \ 4 {" Z) y% f! m. J3 k" A& h/**************************传递数据给extend**************************************/2 S' |1 c& D, V9 N
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / I( U& _) c' F4 q4 v+ L 0 I* s [6 E1 M; o# y% C8 N
valueStr = SysAllocString((WCHAR *) L"1232"); ! X: f7 _; n5 `2 d VariantInit(&pokeVariant[0]); 0 p( H8 x7 X- Y: Z4 @, I, n0 x pokeVariant[0].vt = VT_BSTR;6 S" p$ g: ~* T" H
pokeVariant[0].bstrVal = valueStr; / u+ M) I0 Z+ ~0 m/ b w1 r* k% u, o, ?% b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! K/ L# e; ?8 |4 l' m" }( B
VariantInit(&pokeVariant[1]); ) L, a T, o; ~" y, A- |% H# p& s
pokeVariant[1].vt = VT_BSTR;. ?# u: B* p# T3 M
pokeVariant[1].bstrVal = itemStr;3 p) v# s! H9 _3 H6 E
" E; a7 ~, a. Z( A( L8 u1 @ topicStr = SysAllocString((WCHAR *) L"system");4 e6 t# ]: Y; k1 c+ v5 Z0 @
VariantInit(&pokeVariant[2]); ; Z8 I0 `: b0 Y* y, y$ q3 L- ~8 m
pokeVariant[2].vt = VT_BSTR; 0 X; K( G* Q8 D, R pokeVariant[2].bstrVal = topicStr; 8 H* k) a& _. W$ }+ l8 g8 l Q% ` D J7 ?& j. R. D
// Set the DISPPARAMS structure that holds the variant. * b- H V3 [' p/ H* e( p U& k9 V! i
dp.rgvarg = pokeVariant; : |& T I/ ]; I dp.cArgs = 3;' i; G$ g5 \+ O
dp.rgdispidNamedArgs = NULL; , U, O) B1 D! r2 @- h1 e2 j dp.cNamedArgs = 0; \9 K2 }; p# O( u
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// Call IDispatch::Invoke()1 `4 G. m" o s: U* M4 o
% N& {3 a% Y2 e( l6 W* l- C' O hr = m_pDisp->Invoke( ) }' m0 e9 U, w pokeID, , G- `; j O0 \+ [, Q9 G IID_NULL, / Q2 O. y- ]1 V- J$ w LOCALE_SYSTEM_DEFAULT,$ a% N5 A0 U* ]' J+ A
DISPATCH_METHOD, ; L5 Z" p& d& [& \0 g& h &dp,% {$ V7 @3 ]0 {, l7 t' x, c+ x8 t- O
NULL, ! E9 r* l+ V B* h" n% r: i &ei,( A! U" K; L7 N# d: S
&uiErr);( ?* F: I& t$ u" ~3 L
& V/ ~% y7 C1 ?. u* p5 v( m/ s SysFreeString(topicStr);5 h% }2 N# L% ~- K, {: P
SysFreeString(itemStr);- X7 x, j1 e% X1 }
SysFreeString(valueStr); n! U" O" d' r/ {/ V+ H4 Z0 S+ N8 a& C, i$ e8 H" E
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???3 i9 R/ x I5 Y. g2 b4 H
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????* ?. \, F& ]8 c f9 W2 H/ h
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, M7 Q6 } N7 o4 Z( f* R! [2.这是request的程序. ?2 g. d& z' B, m6 ]% c) _
// Request a value from Extend! [( i; d( f d" f; @; R7 k) C
// C4 k/ n- B; @3 u4 |
// Initialize the variant that will hold the BSTR. Set the variant's 5 @! o q+ s+ J+ W' C// type flag to indicate the fact that this variant holds a BSTR. Place the1 x5 l8 c7 V7 R$ \; T5 w
// BSTR into the variant structure.9 \9 N% T" E! |! ] y" _9 c
5 ]2 w, f4 ~0 D. q4 Q# T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + i! s- z t; \5 m4 q # H! n2 `; q7 O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , T: e2 ^$ B' [: I0 C VariantInit(&requestVariant[0]); 1 V: T2 b! g( o& d$ }, g
requestVariant[0].vt = VT_BSTR;" D+ Z- l$ t8 R% g% O* ?: K
requestVariant[0].bstrVal = itemStr;" c$ D3 C9 e0 F7 ]9 A
9 `" T$ N: B8 m: @/ y topicStr = SysAllocString((WCHAR *) L"system");: m$ w0 @, R4 @8 O) `$ @
VariantInit(&requestVariant[1]); - b# m. w" G7 A+ J0 O8 k requestVariant[1].vt = VT_BSTR;1 m7 w9 o$ i1 L
requestVariant[1].bstrVal = topicStr; " C/ u! P- q9 A3 p% _$ B ( H3 }4 [* H8 R; H4 l% e0 K// Set the DISPPARAMS structure that holds the variant.; V \% o+ ]# Z/ S
) Z8 v# ], ? U4 r- f! W6 Z4 S
dp2.rgvarg = requestVariant; 1 ] R7 }4 ]4 H' \, N dp2.cArgs = 2; 8 j% e( w5 g0 P, l1 R0 L dp2.rgdispidNamedArgs = NULL;( h" g' C/ r8 U! x" W
dp2.cNamedArgs = 0; 2 R7 D. a: i- ^" c6 H# H ! d& u# O. B9 P2 ^, q var.vt = VT_EMPTY; 9 \8 {, a- J; B% m' E5 ] ! E9 ^+ h- j. y$ C3 v// Call IDispatch::Invoke()' ` R" `2 T- c% ?! P
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hr = m_pDisp->Invoke(1 B7 R9 C8 l' A$ Q& E$ A# b
requestID,: I4 N/ f. G5 W$ C
IID_NULL, / f2 o/ w6 O- B& P' s4 _ LOCALE_SYSTEM_DEFAULT,6 B2 s& g' ~" U: M$ b: ?0 m
DISPATCH_METHOD, : w# ` z8 P! D- h8 ?; p &dp2,' {6 z8 r1 r5 a9 V, x
&var, # {7 T6 o7 n# Z8 `' q &ei, : q2 H: p; L; a5 O4 i# a &uiErr); / e; F4 |" L4 a# W* h, H- ~ 5 k: P! v6 M2 {* |9 F SysFreeString(topicStr);* N. s. d% U' T' B
SysFreeString(itemStr);3 @5 t( e9 f& o% d3 u6 @+ f8 T
请问该程序是获得extend里面的哪个值?- |: d8 i8 C8 T0 V" E7 C; c
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????