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:! f( g* n! Q. F s" d4 [, s7 a
Name = (WCHAR *) L"Poke";6 @" o j6 z y- {
' @1 o3 x8 J2 g8 c' S6 o- O hr = m_pDisp->GetIDsOfNames (* }" J7 M4 E2 i: s, v
IID_NULL, // reserved" d) I9 {- |: k- X5 b
&Name, // Array of names to get IDs for / J& p8 a/ ~; G8 I; r 1, // # of names in the array ; s* F7 z8 A: Z, L LOCALE_SYSTEM_DEFAULT, // System locale 9 ]8 a4 W4 Y0 i7 T z &pokeID); // Array of IDs to fill on output 9 _; A0 `# {. C + v/ v( p$ T6 S. n8 \/ X1 }$ `
if (hr)" u: M. a3 L R9 r8 x
{ " Z% |1 O C. L+ ]# _5 y. O3 X MessageBox ("Get Poke Unsuccessful");* D( B) b, W7 X
return;+ I# v& a2 T! h* u) f- ^5 Y
} ' H3 |( \& @% n% u& V + U' ^6 F5 Z3 S8 |( ~# h) i/**************************传递数据给extend**************************************/ ' o" _9 m/ k$ u- y3 t) j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 M' E, y6 y, c7 o 2 R+ ^ Y1 P. B3 D. d2 l5 Z valueStr = SysAllocString((WCHAR *) L"1232");; b; n K% c' Z6 p4 u4 e
VariantInit(&pokeVariant[0]); 7 A) n4 \7 b8 [- X6 F pokeVariant[0].vt = VT_BSTR;- v$ q/ @0 p9 R% }' t6 F
pokeVariant[0].bstrVal = valueStr;2 L: D( T5 S7 J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 F( X# ]* s5 v) k- x2 N# x VariantInit(&pokeVariant[1]); ) T' D! n. w/ g' g
pokeVariant[1].vt = VT_BSTR; 1 H5 O3 E% [+ x, b& Y& t- v) u" g. o pokeVariant[1].bstrVal = itemStr; & p! f& X+ `1 y# c: e+ q ; e0 |) G1 M* A F: \ topicStr = SysAllocString((WCHAR *) L"system");% c7 B) V& K& \) z) n! \; s
VariantInit(&pokeVariant[2]); / ~; h5 |9 `; A5 `! m pokeVariant[2].vt = VT_BSTR; 4 e. K+ \6 R6 b. W! u pokeVariant[2].bstrVal = topicStr; 0 r) w. h8 {+ _4 \0 j! y/ D + k& V& I" m; x, Q* l7 c1 Y5 l// Set the DISPPARAMS structure that holds the variant. 8 D: ]: z8 o2 |! u" `" c8 I S4 _) R$ t" B& q dp.rgvarg = pokeVariant;/ R* y9 z/ I, G3 o+ ~+ |: i
dp.cArgs = 3; * }. S! w& o9 [$ O3 Y dp.rgdispidNamedArgs = NULL;# m+ I$ S( C; @1 `- H
dp.cNamedArgs = 0;- H* y) O9 i1 ~) j
( n: D3 r. W+ M6 S9 D
// Call IDispatch::Invoke() 4 A0 e/ \* K; f) S+ c3 A0 J# A( l" B5 \
hr = m_pDisp->Invoke(. z" B% ~* @; |1 ~* S9 I+ [
pokeID, % _5 G+ f" A, @; f' Y, d IID_NULL,1 O5 O" @5 V- B2 k% b
LOCALE_SYSTEM_DEFAULT,0 O6 g2 c0 T3 O9 h& u- g
DISPATCH_METHOD, ; l4 ?: H% ] p+ y3 I' o" O; m i1 I &dp,1 | w# I( ]0 c
NULL, : K( s, v2 h5 v* g% z &ei,. R8 G1 d5 A3 D# g5 G+ C& R/ D
&uiErr); + z" H% ^; ^& J) W8 @6 @) q* C: R; B5 j% B/ z `
SysFreeString(topicStr);; T- I4 g$ P* L9 s
SysFreeString(itemStr); 4 h% R( K( E( r0 u/ u SysFreeString(valueStr);, c$ p$ m: C& P3 P
% \/ ~: w+ J& L: F% D8 t# U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???# U( i" Q$ E& s6 b
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???? : A$ m; \' z+ H : ~8 O" b5 [3 r, v- {! z7 A" N: Z ! J% [7 `6 u! U/ h! z2.这是request的程序 6 B. ?! s: q7 l/ E A// Request a value from Extend 9 }3 _8 y+ Z2 Q& k# \// # y1 r. [& N$ c- w, x6 i* Q// Initialize the variant that will hold the BSTR. Set the variant's+ e* Z" H8 R- h7 Y$ b
// type flag to indicate the fact that this variant holds a BSTR. Place the- \4 N# Q6 [ w% X+ p3 v
// BSTR into the variant structure. 3 y+ H4 T8 q. o+ m 9 U$ {1 k+ C/ |/ u requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' }6 Y# }0 S$ ?- w/ U7 u0 i
! e& q- B* L: a' p# ?: V, e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , p9 g8 F1 Q1 M6 z7 ? VariantInit(&requestVariant[0]); 2 U! {& l1 v2 [9 N5 V* O requestVariant[0].vt = VT_BSTR;$ T% E$ B/ g) Z$ F8 P
requestVariant[0].bstrVal = itemStr; " S |1 T$ K+ E2 F2 W( w9 j $ r3 B4 M. ^- t9 G7 ]# I topicStr = SysAllocString((WCHAR *) L"system"); ' S8 x% m* b& i M4 ` VariantInit(&requestVariant[1]); ! c0 l% ]1 Q, ^$ B3 U
requestVariant[1].vt = VT_BSTR;3 ~/ f2 D; t( c
requestVariant[1].bstrVal = topicStr;# Q# M! t% T) ~5 U
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// Set the DISPPARAMS structure that holds the variant. # I0 e* V, z! U; }# s& u4 w2 [# O6 c5 j% h, _7 o3 W: ?7 D
dp2.rgvarg = requestVariant;$ D- h5 j- ]0 e1 {
dp2.cArgs = 2; 5 @: ]; E9 P% n6 J- Q dp2.rgdispidNamedArgs = NULL; X6 Q4 M; t" \. }) N0 Z
dp2.cNamedArgs = 0; ( S" I5 y' P$ J. t ~) I & P3 O/ ]( |# e# f$ K3 t, o var.vt = VT_EMPTY;0 r, ]4 i9 n, [+ \8 B4 e