diff options
Diffstat (limited to 'vendor/golang.org/x/sys/windows/dll_windows.go')
| -rw-r--r-- | vendor/golang.org/x/sys/windows/dll_windows.go | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/vendor/golang.org/x/sys/windows/dll_windows.go b/vendor/golang.org/x/sys/windows/dll_windows.go index d777113..115341f 100644 --- a/vendor/golang.org/x/sys/windows/dll_windows.go +++ b/vendor/golang.org/x/sys/windows/dll_windows.go @@ -32,6 +32,8 @@ type DLLError struct { func (e *DLLError) Error() string { return e.Msg } +func (e *DLLError) Unwrap() error { return e.Err } + // A DLL implements access to a single DLL. type DLL struct { Name string @@ -104,6 +106,35 @@ func (d *DLL) MustFindProc(name string) *Proc { return p } +// FindProcByOrdinal searches DLL d for procedure by ordinal and returns *Proc +// if found. It returns an error if search fails. +func (d *DLL) FindProcByOrdinal(ordinal uintptr) (proc *Proc, err error) { + a, e := GetProcAddressByOrdinal(d.Handle, ordinal) + name := "#" + itoa(int(ordinal)) + if e != nil { + return nil, &DLLError{ + Err: e, + ObjName: name, + Msg: "Failed to find " + name + " procedure in " + d.Name + ": " + e.Error(), + } + } + p := &Proc{ + Dll: d, + Name: name, + addr: a, + } + return p, nil +} + +// MustFindProcByOrdinal is like FindProcByOrdinal but panics if search fails. +func (d *DLL) MustFindProcByOrdinal(ordinal uintptr) *Proc { + p, e := d.FindProcByOrdinal(ordinal) + if e != nil { + panic(e) + } + return p +} + // Release unloads DLL d from memory. func (d *DLL) Release() (err error) { return FreeLibrary(d.Handle) @@ -360,7 +391,6 @@ func loadLibraryEx(name string, system bool) (*DLL, error) { var flags uintptr if system { if canDoSearchSystem32() { - const LOAD_LIBRARY_SEARCH_SYSTEM32 = 0x00000800 flags = LOAD_LIBRARY_SEARCH_SYSTEM32 } else if isBaseName(name) { // WindowsXP or unpatched Windows machine |