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:! y' s4 L% d- p. ~: f3 y& [
Name = (WCHAR *) L"Poke"; ) a! s0 a6 N3 A/ Q8 L + m6 d* C- V7 `7 |! a) } hr = m_pDisp->GetIDsOfNames ( ; q% o, Z8 A; O- g2 u IID_NULL, // reserved- S4 [7 G \( ~+ m
&Name, // Array of names to get IDs for # u5 a' ]! a. M4 m( E! O; { 1, // # of names in the array( J6 A7 |1 `7 a) k* |9 m" V
LOCALE_SYSTEM_DEFAULT, // System locale - f6 Y6 A9 y$ h. x. v; W &pokeID); // Array of IDs to fill on output: H3 T: h5 W/ b! j6 x3 e3 @
e- J7 S: Z4 J. S5 X9 H if (hr)1 R! f6 W; O8 d2 N% \5 F
{ : l8 [, W2 Q) H1 L$ s3 {! H MessageBox ("Get Poke Unsuccessful");0 V$ \, \/ a, B" d6 T; f t
return;+ Q7 H" W. L" n: r
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2 a4 r/ }3 u8 W7 I; X Q
/**************************传递数据给extend**************************************/0 f! B9 l o% D4 P& e. P+ A, i
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / o* ~# j5 Q) p' z' `* v& B 9 E- s' k; p* j/ |1 j$ A# K# C valueStr = SysAllocString((WCHAR *) L"1232"); ! k8 U+ s/ e3 \; S' Q, s1 Z. @" l VariantInit(&pokeVariant[0]); 4 V" S+ k& C: t5 o1 D& {
pokeVariant[0].vt = VT_BSTR;/ E3 a* k/ F( A. t8 [
pokeVariant[0].bstrVal = valueStr;1 U' u! Y& V4 z2 n5 {0 Z
7 T* n9 @: y1 g; ~ topicStr = SysAllocString((WCHAR *) L"system"); 0 I% t7 _, z: [& b7 z* t VariantInit(&pokeVariant[2]); 9 @, _ R) a) @9 | pokeVariant[2].vt = VT_BSTR; 6 [! G4 Q$ M9 B- m pokeVariant[2].bstrVal = topicStr; 6 ]& F/ M \+ L. F0 P! c+ w0 R8 y: O . O2 A' \# m) O& @( D0 [// Set the DISPPARAMS structure that holds the variant. 9 i E# A( b J- v* {$ c4 k* C. H1 H
dp.rgvarg = pokeVariant;( w9 r+ r( |& P# f
dp.cArgs = 3; 8 M) F) K( o; A) N dp.rgdispidNamedArgs = NULL;4 i( @ D3 C( ?* E
dp.cNamedArgs = 0; + Z6 _' z9 ^! Q2 X $ c6 Q$ K$ I/ R' T// Call IDispatch::Invoke() 4 V8 @6 N9 u3 l3 m0 G) P2 F; ~+ Z- q/ N. B$ z, O
hr = m_pDisp->Invoke(. W/ m( p$ C7 a I( A) T6 H0 d, N
pokeID,. f3 Y$ ]' Y; q* y
IID_NULL,/ Y& { f( P- Q% C
LOCALE_SYSTEM_DEFAULT, 0 @# L- H! o3 a DISPATCH_METHOD,% h6 X& W! Q( z0 i
&dp, ' {' E0 c0 T8 o( n/ g" n# @ NULL," E& N3 I3 M0 S$ Z9 _
&ei,, u2 x8 @- F$ ?# d
&uiErr);/ f7 Q% B2 v9 W5 v$ L6 U" u; K
5 x9 A) |, S. @8 i" f
SysFreeString(topicStr); & z" H! D0 P6 o9 R SysFreeString(itemStr);+ W) f" k: P6 q0 d
SysFreeString(valueStr); ' }/ w1 u2 j7 i! Y* y1 ] ; r. y/ N# p6 Z9 }. r' V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??? 1 X3 Z- K- H3 X' K5 d; E3 _9 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????+ |+ n; q. Y0 q C8 g
. B- s* q( u& l J5 M4 K; O : J3 d# X4 J+ C" L5 i2.这是request的程序6 k$ R2 Y* o1 O6 P
// Request a value from Extend 8 c( o( e6 E5 @1 X* x//8 i7 G A M- d. A \8 @$ d
// Initialize the variant that will hold the BSTR. Set the variant's ; P+ Z, C9 S2 M1 G6 O// type flag to indicate the fact that this variant holds a BSTR. Place the3 a# A7 A' e% t
// BSTR into the variant structure. 7 L7 W# c+ s' y& w) X: A* o * v: T9 i5 p# b& M, }7 F% c2 v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- w! U- r( J4 J! `( x% m3 r
) n" V% J- \* U" z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: F- s( x: |( H1 e0 V$ H7 t4 c. e v
VariantInit(&requestVariant[0]); ' h/ s' O, ^8 R6 |6 y# I& n
requestVariant[0].vt = VT_BSTR;8 P& o. }( z* b. Q4 N$ y. j( ?& _
requestVariant[0].bstrVal = itemStr; + O. ~ G4 Q7 m! h8 o- T1 l+ I6 ~) N* q9 W4 k6 K2 U
topicStr = SysAllocString((WCHAR *) L"system");. T0 N: g, W! n! w! O
VariantInit(&requestVariant[1]); ! o( t* @9 Z- u
requestVariant[1].vt = VT_BSTR;$ a* B. b7 l3 o3 e+ G1 c. D0 o
requestVariant[1].bstrVal = topicStr; + q: }! C- Q+ k3 T) T; `6 V4 G* ^5 o& e- @5 _
// Set the DISPPARAMS structure that holds the variant.$ O3 w3 \& P s! ^* b
" V5 h' \+ _& W" {. v, f; I dp2.rgvarg = requestVariant;) y( J( P' q* I4 p( r0 t" g4 w9 [
dp2.cArgs = 2;( Q R" |+ e+ L6 a
dp2.rgdispidNamedArgs = NULL;" J. Z2 P1 n6 ^
dp2.cNamedArgs = 0; - ^0 c1 z: P' D1 l $ [8 F. U; S" |/ P/ R. R* Y var.vt = VT_EMPTY; ) w/ X8 I5 `( W9 O9 O8 i2 a! L9 s2 Y / z0 P- ]9 c( w2 W- a" h$ [// Call IDispatch::Invoke() 6 ]$ X* S6 L8 e! h X) T4 f9 r2 @8 U' z8 A9 Y) s
hr = m_pDisp->Invoke(& Q7 w0 P6 C& I
requestID, 3 l' I" {0 j5 v) W9 k0 E IID_NULL,, G; `. ? @+ z
LOCALE_SYSTEM_DEFAULT, $ @' a0 l2 s* Z6 H DISPATCH_METHOD, 4 ~& \- c$ Y$ I: M& @$ Z9 ^; |4 X &dp2,1 }0 ~. k' L' v$ b/ ^- k0 h9 d3 ?- V3 O
&var,9 M/ @7 y. O/ v6 s* y7 t0 q
&ei,: x1 c1 H* Z7 s$ w( }8 b
&uiErr);. B, u* u' u: E0 c" a