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: 2 S- H- a% J9 O1 }Name = (WCHAR *) L"Poke";/ j$ G/ e& Y+ m6 y
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hr = m_pDisp->GetIDsOfNames ( 6 Q% Q8 u; m0 A9 ? IID_NULL, // reserved4 [) J. h) Z' J j/ [, m9 Z& V
&Name, // Array of names to get IDs for + R- }5 c. j. j5 o( i( E 1, // # of names in the array7 v( Q8 L; Y5 _" M6 t2 k s; p
LOCALE_SYSTEM_DEFAULT, // System locale: B8 r% X: d& s( O+ k3 S8 ]. e; R, k0 @
&pokeID); // Array of IDs to fill on output 4 ?! s' q! j* U+ U3 f/ `1 \ # g& {7 r3 X7 k" @- w' B
if (hr). H) Q% g+ M1 l9 P2 d
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MessageBox ("Get Poke Unsuccessful");8 w/ K. y( y; p- C" j% B
return;( W4 R ~+ L: b: h! C& `" C
} ; O, o; m% z0 E4 K% M' @" I, I7 O9 b 8 q3 y; a% O. I/ ~0 |- m( o1 i/ p4 M/**************************传递数据给extend**************************************/# D* M2 u0 L2 J8 D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * |! ~, }( f) M8 x* G7 { / h& m8 B g/ y% q. s+ n
valueStr = SysAllocString((WCHAR *) L"1232");3 D0 l- c7 ]/ y) E9 u/ Y( z# p
VariantInit(&pokeVariant[0]); " W9 ]' q4 g9 E4 Y9 n. B& A pokeVariant[0].vt = VT_BSTR;: P7 z/ ~ e! U
pokeVariant[0].bstrVal = valueStr; # _7 O( e, u% M' W3 f% j9 |2 H) F6 R% `3 e8 i& s4 T' u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 {/ u. w4 N3 B* V7 D
VariantInit(&pokeVariant[1]); 2 @7 W3 n# H3 K u- A \ pokeVariant[1].vt = VT_BSTR; 2 u n, |# y0 y, J6 k t' r6 n pokeVariant[1].bstrVal = itemStr; + d1 p- w2 s7 M: g 6 D& r- @/ V7 v3 a% k% N( c, N topicStr = SysAllocString((WCHAR *) L"system"); & W/ ?; ?- W- z: | VariantInit(&pokeVariant[2]); * @9 p/ o0 c _! O pokeVariant[2].vt = VT_BSTR;. f) X* w+ L1 h0 i
pokeVariant[2].bstrVal = topicStr;; [& u7 @; L/ `. x5 E6 G# v
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// Set the DISPPARAMS structure that holds the variant. 5 _4 h# n' O6 B2 w# d6 p7 H4 D- l+ x1 z+ P, M3 r" D5 o5 U! |
dp.rgvarg = pokeVariant;9 Y. _$ ~, C: S9 C1 y S% h
dp.cArgs = 3; : D$ g5 j* {# T6 I/ _ dp.rgdispidNamedArgs = NULL; ( g3 Z' G8 E2 h( C* w( v dp.cNamedArgs = 0; x6 b' ?) r& C* {5 V. Q% a" P! o7 ^# ]% `! R ]
// Call IDispatch::Invoke()/ y9 R; {4 R! _8 d( \1 [0 E7 h
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hr = m_pDisp->Invoke(' f/ u, z: d2 a- \- H$ X5 H; |
pokeID,! ]: m; T% f- U) O* @, a
IID_NULL,& V. ^. ^/ U$ l4 S, |, ~4 ^) N& b
LOCALE_SYSTEM_DEFAULT, * w* k1 x% P S/ v5 h DISPATCH_METHOD, , d, d/ N. Y/ e6 P; | &dp,0 O- p: x1 j8 t& a9 S
NULL, / T, X( u6 e1 `& b &ei, ! y$ M. ` `# q# S3 Z' i6 L &uiErr); |: A# w* L! _
$ I: M4 `4 S( A6 {& R. d+ }5 x: r SysFreeString(topicStr);( @0 r. L% h) c. y+ y
SysFreeString(itemStr);' }- n# _) C- ?7 K/ ~0 j/ c$ a# a& p
SysFreeString(valueStr); 7 X- p# l! i4 x. m: |6 F% L" X, N9 l4 [) j2 T5 Z o/ }
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 c( Q. s# s% 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???? # M/ q. x- `3 I# G1 t/ h # D! Y/ u7 ?; P0 p6 j$ b8 Q * M# u- ?- h# _5 Z P+ R/ J9 n2.这是request的程序 1 S5 N. P- s4 M5 `// Request a value from Extend }- L/ V+ D6 e$ U- m6 V( [% S
//; r; h* ]- l8 }. F1 d
// Initialize the variant that will hold the BSTR. Set the variant's f+ c: N6 ?5 K8 Z! v2 e# l// type flag to indicate the fact that this variant holds a BSTR. Place the* o% s2 K: z. _9 Z; n. z! a
// BSTR into the variant structure.8 t2 Q+ ]& T: ?# O; Z& p2 t% i3 H8 z
u- Y3 B: M- ~' X1 g. [4 i, I$ \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - m1 h4 v" Y* {% T% ] 7 y; `7 }. f { S" [( [0 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; b8 Q. I' e1 F" c& d! i/ D: m
VariantInit(&requestVariant[0]); ( N9 r: \) e& S3 \! N# g
requestVariant[0].vt = VT_BSTR;& A) D4 u6 I- h
requestVariant[0].bstrVal = itemStr; # }8 e( \) J4 c# L! x & t6 m5 h0 B7 m% F topicStr = SysAllocString((WCHAR *) L"system"); 3 G! q5 W& E9 K0 C. u* u VariantInit(&requestVariant[1]); $ U4 ?; U. E# E" r requestVariant[1].vt = VT_BSTR;: b e' \, {+ u* b9 W" B
requestVariant[1].bstrVal = topicStr;; f6 i4 W' X, I3 H
: l' }9 ?: \* j6 h' H* U1 ]// Set the DISPPARAMS structure that holds the variant. 5 @+ i1 r P% C( G( n# a/ n / I, x ?. b1 \2 i dp2.rgvarg = requestVariant;( X& X! \! x! \$ I
dp2.cArgs = 2; 4 E5 D8 E9 A6 z2 N3 ]5 c/ H( Y dp2.rgdispidNamedArgs = NULL;# _/ Y9 u! ?6 w% F6 J* P; _
dp2.cNamedArgs = 0;# ~# x( h/ l9 h, G$ {# [3 |
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var.vt = VT_EMPTY;/ U* n* {& v7 z- u, p" @
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// Call IDispatch::Invoke()6 A8 C* o8 e% c3 d5 Y( q
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hr = m_pDisp->Invoke(! i0 I# \0 Z- J6 y; d
requestID, ; N7 r3 {) P7 _4 c K( a1 u IID_NULL, 3 X/ R! o, O& r$ y LOCALE_SYSTEM_DEFAULT,) W( V& W' ?- ]7 k) m
DISPATCH_METHOD, 4 A8 l5 S( z; Y* w( ~ &dp2, 7 `* S1 j7 D( Z* U &var,- _# f$ m3 l: M: W5 q1 O3 e% C
&ei,, Y% j* e; X" x3 C) H: w
&uiErr); 4 G* r0 O2 p4 v8 n) x8 f8 z& W3 _, U. R k- m* o
SysFreeString(topicStr);2 ?* f/ ^5 Q) O1 J: u% ]7 |
SysFreeString(itemStr); , X r% [# ?7 U$ a* m请问该程序是获得extend里面的哪个值? ! S* n4 N# `+ y- B, ~* o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????