100 lines
3.7 KiB
Go
100 lines
3.7 KiB
Go
// Copyright 2010 The win Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build windows
|
|
|
|
package win
|
|
|
|
import (
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
func (idProp *MSAAPROPID) split() (uintptr, uintptr, uintptr, uintptr) {
|
|
if idProp == nil {
|
|
return 0, 0, 0, 0
|
|
}
|
|
x := (*struct { a, b, c, d uintptr })(unsafe.Pointer(idProp))
|
|
return x.a, x.b, x.c, x.d
|
|
}
|
|
|
|
// SetPropValue identifies the accessible element to be annotated, specify the property to be annotated, and provide a new value for that property.
|
|
// If server developers know the HWND of the accessible element they want to annotate, they can use one of the following methods: SetHwndPropStr, SetHwndProp, or SetHwndPropServer
|
|
func (obj *IAccPropServices) SetPropValue(idString []byte, idProp *MSAAPROPID, v *VARIANT) HRESULT {
|
|
var idStringPtr unsafe.Pointer
|
|
idStringLen := len(idString)
|
|
if idStringLen != 0 {
|
|
idStringPtr = unsafe.Pointer(&idString[0])
|
|
}
|
|
propA, propB, propC, propD := idProp.split()
|
|
ret, _, _ := syscall.Syscall9(obj.LpVtbl.SetPropValue, 8,
|
|
uintptr(unsafe.Pointer(obj)),
|
|
uintptr(idStringPtr),
|
|
uintptr(idStringLen),
|
|
propA, propB, propC, propD,
|
|
uintptr(unsafe.Pointer(v)),
|
|
0)
|
|
return HRESULT(ret)
|
|
}
|
|
|
|
// SetHwndProp wraps SetPropValue, providing a convenient entry point for callers who are annotating HWND-based accessible elements. If the new value is a string, you can use SetHwndPropStr instead.
|
|
func (obj *IAccPropServices) SetHwndProp(hwnd HWND, idObject int32, idChild uint32, idProp *MSAAPROPID, v *VARIANT) HRESULT {
|
|
propA, propB, propC, propD := idProp.split()
|
|
ret, _, _ := syscall.Syscall9(obj.LpVtbl.SetHwndProp, 9,
|
|
uintptr(unsafe.Pointer(obj)),
|
|
uintptr(hwnd),
|
|
uintptr(idObject),
|
|
uintptr(idChild),
|
|
propA, propB, propC, propD,
|
|
uintptr(unsafe.Pointer(v)))
|
|
return HRESULT(ret)
|
|
}
|
|
|
|
// SetHwndPropStr wraps SetPropValue, providing a more convenient entry point for callers who are annotating HWND-based accessible elements.
|
|
func (obj *IAccPropServices) SetHwndPropStr(hwnd HWND, idObject int32, idChild uint32, idProp *MSAAPROPID, str string) HRESULT {
|
|
str16, err := syscall.UTF16PtrFromString(str)
|
|
if err != nil {
|
|
return -((E_INVALIDARG ^ 0xFFFFFFFF) + 1)
|
|
}
|
|
propA, propB, propC, propD := idProp.split()
|
|
ret, _, _ := syscall.Syscall9(obj.LpVtbl.SetHwndPropStr, 9,
|
|
uintptr(unsafe.Pointer(obj)),
|
|
uintptr(hwnd),
|
|
uintptr(idObject),
|
|
uintptr(idChild),
|
|
propA, propB, propC, propD,
|
|
uintptr(unsafe.Pointer(str16)))
|
|
return HRESULT(ret)
|
|
}
|
|
|
|
// SetHmenuProp wraps SetPropValue, providing a convenient entry point for callers who are annotating HMENU-based accessible elements. If the new value is a string, you can use IAccPropServices::SetHmenuPropStr instead.
|
|
func (obj *IAccPropServices) SetHmenuProp(hmenu HMENU, idChild uint32, idProp *MSAAPROPID, v *VARIANT) HRESULT {
|
|
propA, propB, propC, propD := idProp.split()
|
|
ret, _, _ := syscall.Syscall9(obj.LpVtbl.SetHmenuProp, 8,
|
|
uintptr(unsafe.Pointer(obj)),
|
|
uintptr(hmenu),
|
|
uintptr(idChild),
|
|
propA, propB, propC, propD,
|
|
uintptr(unsafe.Pointer(v)),
|
|
0)
|
|
return HRESULT(ret)
|
|
}
|
|
|
|
// SetHmenuPropStr wraps SetPropValue, providing a more convenient entry point for callers who are annotating HMENU-based accessible elements.
|
|
func (obj *IAccPropServices) SetHmenuPropStr(hmenu HMENU, idChild uint32, idProp *MSAAPROPID, str string) HRESULT {
|
|
str16, err := syscall.UTF16PtrFromString(str)
|
|
if err != nil {
|
|
return -((E_INVALIDARG ^ 0xFFFFFFFF) + 1)
|
|
}
|
|
propA, propB, propC, propD := idProp.split()
|
|
ret, _, _ := syscall.Syscall9(obj.LpVtbl.SetHmenuPropStr, 8,
|
|
uintptr(unsafe.Pointer(obj)),
|
|
uintptr(hmenu),
|
|
uintptr(idChild),
|
|
propA, propB, propC, propD,
|
|
uintptr(unsafe.Pointer(str16)),
|
|
0)
|
|
return HRESULT(ret)
|
|
}
|