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：, N& b. o1 t3 p: Q9 ?/ H5 G3 |
Name = (WCHAR *) L"Poke"; K# e" ]+ a$ U/ X e7 [! y+ w4 e8 g
Z$ j8 W& |; r7 C& h hr = m_pDisp->GetIDsOfNames (7 ^4 s7 m- ~ C
IID_NULL, // reserved 6 b6 t) {7 @" D4 ?: o. V &Name, // Array of names to get IDs for+ g* \$ `# g. e: e) I" f
1, // # of names in the array ' Q* J% g: b3 K* e2 r LOCALE_SYSTEM_DEFAULT, // System locale# T% A. C& r! q7 h& [
&pokeID); // Array of IDs to fill on output 2 Q, p" x! L, u0 W4 o* A) {1 y9 l: Q 7 h- m7 N; B4 t X$ d* S/ F
if (hr)# u l! s2 y& x8 `: r& s
{ ' K9 w- u3 U6 u( `& T) `' k MessageBox ("Get Poke Unsuccessful"); ( d0 s8 X- q$ h. ] return; 1 G" u! p, v3 d8 O }+ U4 [9 d* Y* U) u6 M
: o0 b+ J0 B$ r7 Y7 ~/**************************传递数据给extend**************************************/ , N w) E$ ?: |$ Y/ Y7 i0 @1 ^ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , K3 e7 ?$ S- N3 A2 X' F- z% d6 F 2 l) A! C) u+ t3 }
valueStr = SysAllocString((WCHAR *) L"1232"); i4 G+ m# B* p0 Y+ ]. w, C VariantInit(&pokeVariant[0]); - E: G. z1 z5 d* ~) i
pokeVariant[0].vt = VT_BSTR; 7 B; y4 w) l+ s# {# x: _; l pokeVariant[0].bstrVal = valueStr; ' R) m% D/ E& m9 Q ) Q) U) g* \4 \3 K: y b: [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, U1 j; T( S- D+ u3 r! {# s
VariantInit(&pokeVariant[1]); ; Q) Z0 b; r! v% \/ n# R8 |
pokeVariant[1].vt = VT_BSTR; - Y; @0 m1 m6 F* b pokeVariant[1].bstrVal = itemStr;2 _8 r. G! h9 k' o6 `2 B( B
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topicStr = SysAllocString((WCHAR *) L"system");$ e. ]% ?3 P4 w$ ^0 _3 p
VariantInit(&pokeVariant[2]); O7 ?2 T2 B7 z$ Q4 P pokeVariant[2].vt = VT_BSTR;! i0 C% D5 Y6 e
pokeVariant[2].bstrVal = topicStr; ) c* t2 \1 s7 c0 ^$ O: M$ A! v# O% L4 C / q! N4 ^- O* `0 V& H) B4 y: o t// Set the DISPPARAMS structure that holds the variant." f( s0 Q0 K% }' U3 c- X
- J* V- q3 q/ O8 _/ {
dp.rgvarg = pokeVariant;$ b1 m2 @0 ] A% S
dp.cArgs = 3; X* b" M2 C# V1 I dp.rgdispidNamedArgs = NULL; - A/ ^9 e) e8 w" c" j dp.cNamedArgs = 0; 6 c9 A1 {7 B& p" @9 O3 r% R 5 K9 V" N& M8 a5 [/ V// Call IDispatch::Invoke()/ v: ^' V+ B% l8 Y/ ^
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hr = m_pDisp->Invoke( " ~ w& M; M6 o/ ~) D( H V pokeID, " p( J9 k( L5 v1 K8 ? { IID_NULL, & Q! X9 l1 ^0 E, d LOCALE_SYSTEM_DEFAULT, ) e! y9 D! E3 O/ N9 S: W- Y DISPATCH_METHOD,( ~# A8 A# ~ J# d" {
&dp,+ M, t: m T# G J& l5 t
NULL,* ~+ b* F5 A: k* q2 }! ]$ w8 ~$ X
&ei, ! P+ b0 D+ M9 D# q$ f &uiErr); & ^8 ~7 \" q7 t' h5 F) E# Z' w/ K2 A; d0 {3 ]$ J7 l$ u
SysFreeString(topicStr); h! N7 v; y, |& v SysFreeString(itemStr);( _2 l$ W, W) R3 ~6 |( A: |
SysFreeString(valueStr); . Y3 ~+ e+ B3 t- k% a9 p- r% |8 _+ |
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？？？. D0 j; ?! v y$ S j/ f( c
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？？？？, @7 c8 B+ @$ G6 W5 m, B
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2.这是request的程序) `) K& D; w% J8 I A
// Request a value from Extend0 V* p( s) ]4 N5 Y, |, @3 K
// 1 h/ ~4 a% G8 G- @- V// Initialize the variant that will hold the BSTR. Set the variant's 0 p$ S" I9 t( Q6 P4 b' r// type flag to indicate the fact that this variant holds a BSTR. Place the7 D4 \2 \. X J2 y7 b: D
// BSTR into the variant structure.& `# C" r8 x6 c6 z! k/ o
' V( u+ O, x' B' z7 C, l5 r2 _
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: q" h0 ^. G+ M* f' z. m3 o% ?) q
发表于 2008-11-25 19:37:03
