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windows: add window handle related system calls

Browse Source 
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-enumwindows
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-enumchildwindows
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getclassnamew
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdesktopwindow
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getforegroundwindow
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-iswindow
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-iswindowunicode
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-iswindowvisible
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getguithreadinfo
This commit is contained in:
Michael Lelli
2022-03-25 16:17:21 -05:00
parent aba9fc2a8f
commit 242b79ffb8
3 changed files with 97 additions and 0 deletions
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9
windows/syscall_windows.go
View File

@@ -364,6 +364,15 @@ func NewCallbackCDecl(fn interface{}) uintptr {
//sys SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
//sys GetActiveProcessorCount(groupNumber uint16) (ret uint32)
//sys GetMaximumProcessorCount(groupNumber uint16) (ret uint32)
//sys EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) = user32.EnumWindows
//sys EnumChildWindows(hwnd HWND, enumFunc uintptr, param unsafe.Pointer) = user32.EnumChildWindows
//sys GetClassName(hwnd HWND, className *uint16, maxCount int32) (copied int32, err error) = user32.GetClassNameW
//sys GetDesktopWindow() (hwnd HWND) = user32.GetDesktopWindow
//sys GetForegroundWindow() (hwnd HWND) = user32.GetForegroundWindow
//sys IsWindow(hwnd HWND) (isWindow bool) = user32.IsWindow
//sys IsWindowUnicode(hwnd HWND) (isUnicode bool) = user32.IsWindowUnicode
//sys IsWindowVisible(hwnd HWND) (isVisible bool) = user32.IsWindowVisible
//sys GetGUIThreadInfo(thread uint32, info *GUIThreadInfo) (err error) = user32.GetGUIThreadInfo
// Volume Management Functions
//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW

19
windows/types_windows.go
View File

@@ -3213,3 +3213,22 @@ type ModuleInfo struct {
}
const ALL_PROCESSOR_GROUPS = 0xFFFF
type Rect struct {
Left int32
Top int32
Right int32
Bottom int32
}
type GUIThreadInfo struct {
Size uint32
Flags uint32
Active HWND
Focus HWND
Capture HWND
MenuOwner HWND
MoveSize HWND
CaretHandle HWND
CaretRect Rect
}

69
windows/zsyscall_windows.go
View File

@@ -444,9 +444,18 @@ var (
procCommandLineToArgvW = modshell32.NewProc("CommandLineToArgvW")
procSHGetKnownFolderPath = modshell32.NewProc("SHGetKnownFolderPath")
procShellExecuteW = modshell32.NewProc("ShellExecuteW")
procEnumChildWindows = moduser32.NewProc("EnumChildWindows")
procEnumWindows = moduser32.NewProc("EnumWindows")
procExitWindowsEx = moduser32.NewProc("ExitWindowsEx")
procGetClassNameW = moduser32.NewProc("GetClassNameW")
procGetDesktopWindow = moduser32.NewProc("GetDesktopWindow")
procGetForegroundWindow = moduser32.NewProc("GetForegroundWindow")
procGetGUIThreadInfo = moduser32.NewProc("GetGUIThreadInfo")
procGetShellWindow = moduser32.NewProc("GetShellWindow")
procGetWindowThreadProcessId = moduser32.NewProc("GetWindowThreadProcessId")
procIsWindow = moduser32.NewProc("IsWindow")
procIsWindowUnicode = moduser32.NewProc("IsWindowUnicode")
procIsWindowVisible = moduser32.NewProc("IsWindowVisible")
procMessageBoxW = moduser32.NewProc("MessageBoxW")
procCreateEnvironmentBlock = moduserenv.NewProc("CreateEnvironmentBlock")
procDestroyEnvironmentBlock = moduserenv.NewProc("DestroyEnvironmentBlock")
@@ -3802,6 +3811,19 @@ func ShellExecute(hwnd Handle, verb *uint16, file *uint16, args *uint16, cwd *ui
return
}
func EnumChildWindows(hwnd HWND, enumFunc uintptr, param unsafe.Pointer) {
syscall.Syscall(procEnumChildWindows.Addr(), 3, uintptr(hwnd), uintptr(enumFunc), uintptr(param))
return
}
func EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) {
r1, _, e1 := syscall.Syscall(procEnumWindows.Addr(), 2, uintptr(enumFunc), uintptr(param), 0)
if r1 == 0 {
err = errnoErr(e1)
}
return
}
func ExitWindowsEx(flags uint32, reason uint32) (err error) {
r1, _, e1 := syscall.Syscall(procExitWindowsEx.Addr(), 2, uintptr(flags), uintptr(reason), 0)
if r1 == 0 {
@@ -3810,6 +3832,35 @@ func ExitWindowsEx(flags uint32, reason uint32) (err error) {
return
}
func GetClassName(hwnd HWND, className *uint16, maxCount int32) (copied int32, err error) {
r0, _, e1 := syscall.Syscall(procGetClassNameW.Addr(), 3, uintptr(hwnd), uintptr(unsafe.Pointer(className)), uintptr(maxCount))
copied = int32(r0)
if copied == 0 {
err = errnoErr(e1)
}
return
}
func GetDesktopWindow() (hwnd HWND) {
r0, _, _ := syscall.Syscall(procGetDesktopWindow.Addr(), 0, 0, 0, 0)
hwnd = HWND(r0)
return
}
func GetForegroundWindow() (hwnd HWND) {
r0, _, _ := syscall.Syscall(procGetForegroundWindow.Addr(), 0, 0, 0, 0)
hwnd = HWND(r0)
return
}
func GetGUIThreadInfo(thread uint32, info *GUIThreadInfo) (err error) {
r1, _, e1 := syscall.Syscall(procGetGUIThreadInfo.Addr(), 2, uintptr(thread), uintptr(unsafe.Pointer(info)), 0)
if r1 == 0 {
err = errnoErr(e1)
}
return
}
func GetShellWindow() (shellWindow HWND) {
r0, _, _ := syscall.Syscall(procGetShellWindow.Addr(), 0, 0, 0, 0)
shellWindow = HWND(r0)
@@ -3825,6 +3876,24 @@ func GetWindowThreadProcessId(hwnd HWND, pid *uint32) (tid uint32, err error) {
return
}
func IsWindow(hwnd HWND) (isWindow bool) {
r0, _, _ := syscall.Syscall(procIsWindow.Addr(), 1, uintptr(hwnd), 0, 0)
isWindow = r0 != 0
return
}
func IsWindowUnicode(hwnd HWND) (isUnicode bool) {
r0, _, _ := syscall.Syscall(procIsWindowUnicode.Addr(), 1, uintptr(hwnd), 0, 0)
isUnicode = r0 != 0
return
}
func IsWindowVisible(hwnd HWND) (isVisible bool) {
r0, _, _ := syscall.Syscall(procIsWindowVisible.Addr(), 1, uintptr(hwnd), 0, 0)
isVisible = r0 != 0
return
}
func MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) {
r0, _, e1 := syscall.Syscall6(procMessageBoxW.Addr(), 4, uintptr(hwnd), uintptr(unsafe.Pointer(text)), uintptr(unsafe.Pointer(caption)), uintptr(boxtype), 0, 0)
ret = int32(r0)