198 lines
6.4 KiB
Go
198 lines
6.4 KiB
Go
// +build windows
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package ole
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import (
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"syscall"
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"time"
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"unsafe"
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)
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func getIDsOfName(disp *IDispatch, names []string) (dispid []int32, err error) {
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wnames := make([]*uint16, len(names))
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for i := 0; i < len(names); i++ {
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wnames[i] = syscall.StringToUTF16Ptr(names[i])
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}
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dispid = make([]int32, len(names))
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namelen := uint32(len(names))
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hr, _, _ := syscall.Syscall6(
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disp.VTable().GetIDsOfNames,
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6,
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uintptr(unsafe.Pointer(disp)),
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uintptr(unsafe.Pointer(IID_NULL)),
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uintptr(unsafe.Pointer(&wnames[0])),
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uintptr(namelen),
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uintptr(GetUserDefaultLCID()),
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uintptr(unsafe.Pointer(&dispid[0])))
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if hr != 0 {
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err = NewError(hr)
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}
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return
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}
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func getTypeInfoCount(disp *IDispatch) (c uint32, err error) {
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hr, _, _ := syscall.Syscall(
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disp.VTable().GetTypeInfoCount,
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2,
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uintptr(unsafe.Pointer(disp)),
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uintptr(unsafe.Pointer(&c)),
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0)
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if hr != 0 {
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err = NewError(hr)
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}
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return
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}
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func getTypeInfo(disp *IDispatch) (tinfo *ITypeInfo, err error) {
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hr, _, _ := syscall.Syscall(
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disp.VTable().GetTypeInfo,
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3,
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uintptr(unsafe.Pointer(disp)),
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uintptr(GetUserDefaultLCID()),
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uintptr(unsafe.Pointer(&tinfo)))
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if hr != 0 {
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err = NewError(hr)
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}
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return
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}
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func invoke(disp *IDispatch, dispid int32, dispatch int16, params ...interface{}) (result *VARIANT, err error) {
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var dispparams DISPPARAMS
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if dispatch&DISPATCH_PROPERTYPUT != 0 {
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dispnames := [1]int32{DISPID_PROPERTYPUT}
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dispparams.rgdispidNamedArgs = uintptr(unsafe.Pointer(&dispnames[0]))
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dispparams.cNamedArgs = 1
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} else if dispatch&DISPATCH_PROPERTYPUTREF != 0 {
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dispnames := [1]int32{DISPID_PROPERTYPUT}
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dispparams.rgdispidNamedArgs = uintptr(unsafe.Pointer(&dispnames[0]))
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dispparams.cNamedArgs = 1
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}
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var vargs []VARIANT
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if len(params) > 0 {
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vargs = make([]VARIANT, len(params))
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for i, v := range params {
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//n := len(params)-i-1
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n := len(params) - i - 1
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VariantInit(&vargs[n])
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switch vv := v.(type) {
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case bool:
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if vv {
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vargs[n] = NewVariant(VT_BOOL, 0xffff)
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} else {
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vargs[n] = NewVariant(VT_BOOL, 0)
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}
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case *bool:
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vargs[n] = NewVariant(VT_BOOL|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*bool)))))
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case uint8:
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vargs[n] = NewVariant(VT_I1, int64(v.(uint8)))
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case *uint8:
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vargs[n] = NewVariant(VT_I1|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*uint8)))))
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case int8:
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vargs[n] = NewVariant(VT_I1, int64(v.(int8)))
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case *int8:
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vargs[n] = NewVariant(VT_I1|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*uint8)))))
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case int16:
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vargs[n] = NewVariant(VT_I2, int64(v.(int16)))
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case *int16:
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vargs[n] = NewVariant(VT_I2|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*int16)))))
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case uint16:
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vargs[n] = NewVariant(VT_UI2, int64(v.(uint16)))
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case *uint16:
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vargs[n] = NewVariant(VT_UI2|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*uint16)))))
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case int32:
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vargs[n] = NewVariant(VT_I4, int64(v.(int32)))
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case *int32:
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vargs[n] = NewVariant(VT_I4|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*int32)))))
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case uint32:
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vargs[n] = NewVariant(VT_UI4, int64(v.(uint32)))
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case *uint32:
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vargs[n] = NewVariant(VT_UI4|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*uint32)))))
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case int64:
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vargs[n] = NewVariant(VT_I8, int64(v.(int64)))
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case *int64:
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vargs[n] = NewVariant(VT_I8|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*int64)))))
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case uint64:
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vargs[n] = NewVariant(VT_UI8, int64(uintptr(v.(uint64))))
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case *uint64:
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vargs[n] = NewVariant(VT_UI8|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*uint64)))))
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case int:
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vargs[n] = NewVariant(VT_I4, int64(v.(int)))
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case *int:
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vargs[n] = NewVariant(VT_I4|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*int)))))
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case uint:
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vargs[n] = NewVariant(VT_UI4, int64(v.(uint)))
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case *uint:
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vargs[n] = NewVariant(VT_UI4|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*uint)))))
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case float32:
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vargs[n] = NewVariant(VT_R4, *(*int64)(unsafe.Pointer(&vv)))
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case *float32:
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vargs[n] = NewVariant(VT_R4|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*float32)))))
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case float64:
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vargs[n] = NewVariant(VT_R8, *(*int64)(unsafe.Pointer(&vv)))
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case *float64:
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vargs[n] = NewVariant(VT_R8|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*float64)))))
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case string:
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vargs[n] = NewVariant(VT_BSTR, int64(uintptr(unsafe.Pointer(SysAllocStringLen(v.(string))))))
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case *string:
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vargs[n] = NewVariant(VT_BSTR|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*string)))))
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case time.Time:
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s := vv.Format("2006-01-02 15:04:05")
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vargs[n] = NewVariant(VT_BSTR, int64(uintptr(unsafe.Pointer(SysAllocStringLen(s)))))
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case *time.Time:
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s := vv.Format("2006-01-02 15:04:05")
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vargs[n] = NewVariant(VT_BSTR|VT_BYREF, int64(uintptr(unsafe.Pointer(&s))))
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case *IDispatch:
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vargs[n] = NewVariant(VT_DISPATCH, int64(uintptr(unsafe.Pointer(v.(*IDispatch)))))
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case **IDispatch:
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vargs[n] = NewVariant(VT_DISPATCH|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(**IDispatch)))))
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case nil:
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vargs[n] = NewVariant(VT_NULL, 0)
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case *VARIANT:
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vargs[n] = NewVariant(VT_VARIANT|VT_BYREF, int64(uintptr(unsafe.Pointer(v.(*VARIANT)))))
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case []byte:
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safeByteArray := safeArrayFromByteSlice(v.([]byte))
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vargs[n] = NewVariant(VT_ARRAY|VT_UI1, int64(uintptr(unsafe.Pointer(safeByteArray))))
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defer VariantClear(&vargs[n])
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case []string:
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safeByteArray := safeArrayFromStringSlice(v.([]string))
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vargs[n] = NewVariant(VT_ARRAY|VT_BSTR, int64(uintptr(unsafe.Pointer(safeByteArray))))
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defer VariantClear(&vargs[n])
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default:
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panic("unknown type")
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}
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}
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dispparams.rgvarg = uintptr(unsafe.Pointer(&vargs[0]))
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dispparams.cArgs = uint32(len(params))
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}
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result = new(VARIANT)
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var excepInfo EXCEPINFO
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VariantInit(result)
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hr, _, _ := syscall.Syscall9(
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disp.VTable().Invoke,
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9,
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uintptr(unsafe.Pointer(disp)),
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uintptr(dispid),
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uintptr(unsafe.Pointer(IID_NULL)),
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uintptr(GetUserDefaultLCID()),
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uintptr(dispatch),
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uintptr(unsafe.Pointer(&dispparams)),
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uintptr(unsafe.Pointer(result)),
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uintptr(unsafe.Pointer(&excepInfo)),
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0)
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if hr != 0 {
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err = NewErrorWithSubError(hr, BstrToString(excepInfo.bstrDescription), excepInfo)
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}
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for i, varg := range vargs {
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n := len(params) - i - 1
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if varg.VT == VT_BSTR && varg.Val != 0 {
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SysFreeString(((*int16)(unsafe.Pointer(uintptr(varg.Val)))))
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}
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if varg.VT == (VT_BSTR|VT_BYREF) && varg.Val != 0 {
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*(params[n].(*string)) = LpOleStrToString(*(**uint16)(unsafe.Pointer(uintptr(varg.Val))))
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}
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}
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return
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}
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