Class User32Api

Native wrappers for the User32 DLL

Inheritance

System.Object

User32Api

Namespace: Dapplo.Windows.User32

Assembly: Dapplo.Windows.User32.dll

Syntax

public static class User32Api : object

Methods

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AllDisplays()

Returns the number of Displays using the Win32 functions

Declaration

public static IEnumerable<DisplayInfo> AllDisplays()

Returns

Type	Description
IEnumerable<DisplayInfo>	collection of Display Info

BringWindowToTop(IntPtr)

Bring the specified window to the front

Declaration

public static bool BringWindowToTop(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr specifying the hWnd

Returns

Type	Description
System.Boolean	true if the call was successfull

ChangeClipboardChain(IntPtr, IntPtr)

Declaration

public static bool ChangeClipboardChain(IntPtr hWndRemove, IntPtr hWndNewNext)

Parameters

Type	Name	Description
IntPtr	hWndRemove
IntPtr	hWndNewNext

Returns

Type	Description
System.Boolean

CopyIcon(IntPtr)

The following is used for Icon handling, and copies a hicon to a new

Declaration

public static SafeIconHandle CopyIcon(IntPtr hIcon)

Parameters

Type	Name	Description
IntPtr	hIcon	IntPtr

Returns

Type	Description
SafeIconHandle	SafeIconHandle

CreateIconIndirect(ref IconInfo)

Declaration

public static IntPtr CreateIconIndirect(ref IconInfo icon)

Parameters

Type	Name	Description
IconInfo	icon

Returns

Type	Description
IntPtr

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CreateWin32Exception(String)

Helper method to create a Win32 exception with the windows message in it

Declaration

public static Exception CreateWin32Exception(string method)

Parameters

Type	Name	Description
System.String	method	string with current method

Returns

Type	Description
Exception	Exception

DestroyIcon(IntPtr)

Declaration

public static bool DestroyIcon(IntPtr hIcon)

Parameters

Type	Name	Description
IntPtr	hIcon

Returns

Type	Description
System.Boolean

EnumChildWindows(IntPtr, User32Api.EnumWindowsProc, IntPtr)

See here

Declaration

public static bool EnumChildWindows(IntPtr hWndParent, User32Api.EnumWindowsProc enumFunc, IntPtr param)

Parameters

Type	Name	Description
IntPtr	hWndParent	IntPtr with hwnd of parent window, if this is IntPtr.Zero this function behaves as EnumWindows
User32Api.EnumWindowsProc	enumFunc	EnumWindowsProc
IntPtr	param	An application-defined value to be passed to the callback function.

Returns

Type	Description
System.Boolean	true if success

EnumThreadWindows(Int32, User32Api.EnumWindowsProc, IntPtr)

See EnumThreadWindows function Enumerates all nonchild windows associated with a thread by passing the handle to each window, in turn, to an application-defined callback function. EnumThreadWindows continues until the last window is enumerated or the callback function returns FALSE. To enumerate child windows of a particular window, use the EnumChildWindows function.

Declaration

public static bool EnumThreadWindows(int threadId, User32Api.EnumWindowsProc enumFunc, IntPtr param)

Parameters

Type	Name	Description
System.Int32	threadId	The identifier of the thread whose windows are to be enumerated.
User32Api.EnumWindowsProc	enumFunc	EnumWindowsProc
IntPtr	param	An application-defined value to be passed to the callback function.

Returns

Type	Description
System.Boolean

EnumWindows(User32Api.EnumWindowsProc, IntPtr)

See here

Declaration

public static bool EnumWindows(User32Api.EnumWindowsProc enumFunc, IntPtr param)

Parameters

Type	Name	Description
User32Api.EnumWindowsProc	enumFunc	EnumWindowsProc
IntPtr	param	An application-defined value to be passed to the callback function.

Returns

Type	Description
System.Boolean	true if success

FindWindow(String, String)

Declaration

public static IntPtr FindWindow(string lpClassName, string lpWindowName)

Parameters

Type	Name	Description
System.String	lpClassName
System.String	lpWindowName

Returns

Type	Description
IntPtr

FindWindowEx(IntPtr, IntPtr, String, String)

Declaration

public static IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow)

Parameters

Type	Name	Description
IntPtr	hwndParent
IntPtr	hwndChildAfter
System.String	lpszClass
System.String	lpszWindow

Returns

Type	Description
IntPtr

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GetClassLongWrapper(IntPtr, ClassLongIndex)

Wrapper for the GetClassLong which decides if the system is 64-bit or not and calls the right one.

Declaration

public static IntPtr GetClassLongWrapper(IntPtr hWnd, ClassLongIndex index)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr
ClassLongIndex	index	ClassLongIndex

Returns

Type	Description
IntPtr	IntPtr

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GetClassname(IntPtr)

Retrieve the windows classname

Declaration

public static string GetClassname(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr for the window

Returns

Type	Description
System.String	string

GetClassName(IntPtr, StringBuilder, Int32)

Get the classname of the specified window

Declaration

public static int GetClassName(IntPtr hWnd, StringBuilder className, int nMaxCount)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr with the hWnd
StringBuilder	className	StringBuilder to place the classname into
System.Int32	nMaxCount	max size for the string builder length

Returns

Type	Description
System.Int32	nr of characters returned

GetClipboardOwner()

Declaration

public static IntPtr GetClipboardOwner()

Returns

Type	Description
IntPtr

GetCursorInfo(out CursorInfo)

See GetCursorInfo function Retrieves information about the global cursor.

Declaration

public static bool GetCursorInfo(out CursorInfo cursorInfo)

Parameters

Type	Name	Description
CursorInfo	cursorInfo	a CURSORINFO structure

Returns

Type	Description
System.Boolean	bool

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GetCursorLocation()

Retrieves the cursor location safely, accounting for DPI settings in Vista/Windows 7.

Declaration

public static POINT GetCursorLocation()

Returns

Type	Description
POINT	POINT with cursor location, relative to the origin of the monitor setup (i.e. negative coordinates arepossible in multiscreen setups)

GetDC(IntPtr)

Declaration

public static IntPtr GetDC(IntPtr hwnd)

Parameters

Type	Name	Description
IntPtr	hwnd

Returns

Type	Description
IntPtr

GetDesktopWindow()

Get the hWnd of the Desktop window

Declaration

public static IntPtr GetDesktopWindow()

Returns

Type	Description
IntPtr	IntPtr

GetForegroundWindow()

Declaration

public static IntPtr GetForegroundWindow()

Returns

Type	Description
IntPtr

GetGuiResources(IntPtr, UInt32)

Declaration

public static uint GetGuiResources(IntPtr hProcess, uint uiFlags)

Parameters

Type	Name	Description
IntPtr	hProcess
System.UInt32	uiFlags

Returns

Type	Description
System.UInt32

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GetGuiResourcesGdiCount()

Return the count of GDI objects.

Declaration

public static uint GetGuiResourcesGdiCount()

Returns

Type	Description
System.UInt32	Return the count of GDI objects.

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GetGuiResourcesUserCount()

Return the count of USER objects.

Declaration

public static uint GetGuiResourcesUserCount()

Returns

Type	Description
System.UInt32	Return the count of USER objects.

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GetIcon(IntPtr, Boolean)

Get the icon for a hWnd

Declaration

public static Icon GetIcon(IntPtr hWnd, bool useLargeIcons = false)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr
System.Boolean	useLargeIcons	true to try to get a big icon first

Returns

Type	Description
Icon	System.Drawing.Icon

GetIconInfo(SafeIconHandle, out IconInfo)

Declaration

public static bool GetIconInfo(SafeIconHandle iconHandle, out IconInfo iconInfo)

Parameters

Type	Name	Description
SafeIconHandle	iconHandle
IconInfo	iconInfo

Returns

Type	Description
System.Boolean

GetParent(IntPtr)

Retrieves a handle to the specified window's parent or owner. To retrieve a handle to a specified ancestor, use the GetAncestor function.

Declaration

public static IntPtr GetParent(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	A handle to the window whose parent window handle is to be retrieved.

Returns

Type	Description
IntPtr	IntPtr handle to the parent window or IntPtr.Zero if none If the window is a child window, the return value is a handle to the parent window. If the window is a top-level window with the WS_POPUP style, the return value is a handle to the owner window.

GetScrollBarInfo(IntPtr, ObjectIdentifiers, ref ScrollBarInfo)

See GetScrollBarInfo function for more information.

Declaration

public static bool GetScrollBarInfo(IntPtr hwnd, ObjectIdentifiers idObject, ref ScrollBarInfo scrollBarInfo)

Parameters

Type	Name	Description
IntPtr	hwnd	Handle to a window associated with the scroll bar whose information is to be retrieved. If the idObject parameter is OBJID_CLIENT, hwnd is a handle to a scroll bar control. Otherwise, hwnd is a handle to a window created with WS_VSCROLL and/or WS_HSCROLL style.
ObjectIdentifiers	idObject	Specifies the scroll bar object. Can be ObjectIdentifiers.Client, ObjectIdentifiers.HorizontalScrollbar, ObjectIdentifiers.VerticalScrollbar
ScrollBarInfo	scrollBarInfo	ScrollBarInfo ref

Returns

Type	Description
System.Boolean	bool

GetScrollInfo(IntPtr, ScrollBarTypes, ref ScrollInfo)

See GetScrollInfo for more information.

Declaration

public static bool GetScrollInfo(IntPtr hwnd, ScrollBarTypes scrollBar, ref ScrollInfo scrollInfo)

Parameters

Type	Name	Description
IntPtr	hwnd	IntPtr with the window handle
ScrollBarTypes	scrollBar	ScrollBarTypes
ScrollInfo	scrollInfo	ScrollInfo ref

Returns

Type	Description
System.Boolean	bool if it worked

GetSysColor(Int32)

Declaration

public static uint GetSysColor(int nIndex)

Parameters

Type	Name	Description
System.Int32	nIndex

Returns

Type	Description
System.UInt32

GetSystemMetrics(SystemMetric)

See GetSystemMetrics function

Declaration

public static int GetSystemMetrics(SystemMetric index)

Parameters

Type	Name	Description
SystemMetric	index	SystemMetric

Returns

Type	Description
System.Int32	int

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GetText(IntPtr)

Retrieve the windows caption, also called Text

Declaration

public static string GetText(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr for the window

Returns

Type	Description
System.String	string

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GetTextFromWindow(IntPtr)

Get the text of a control, this is not the caption

Declaration

public static string GetTextFromWindow(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr

Returns

Type	Description
System.String	string with the text

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GetTitleBarInfoEx(IntPtr)

Get the titlebar info ex for the specified window

Declaration

public static TitleBarInfoEx GetTitleBarInfoEx(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr with the window handle

Returns

Type	Description
TitleBarInfoEx	TitleBarInfoEx

GetTopWindow(IntPtr)

Declaration

public static IntPtr GetTopWindow(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd

Returns

Type	Description
IntPtr

GetWindow(IntPtr, GetWindowCommands)

Retrieves a handle to a window that has the specified relationship (Z-Order or owner) to the specified window. See GetWindow function

Declaration

public static IntPtr GetWindow(IntPtr hWnd, GetWindowCommands getWindowCommand)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr A handle to a window. The window handle retrieved is relative to this window, based on the value of the uCmd parameter.
GetWindowCommands	getWindowCommand	GetWindowCommands The relationship between the specified window and the window whose handle is to be retrieved. See GetWindowCommands

Returns

Type	Description
IntPtr

GetWindowInfo(IntPtr, ref WindowInfo)

See GetWindowInfo Retrieves information about the specified window.

Declaration

public static bool GetWindowInfo(IntPtr hwnd, ref WindowInfo windowInfo)

Parameters

Type	Name	Description
IntPtr	hwnd	IntPtr
WindowInfo	windowInfo	WindowInfo (use WindowInfo.Create)

Returns

Type	Description
System.Boolean	bool if false than get the last error

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GetWindowLongWrapper(IntPtr, WindowLongIndex)

Wrapper for the GetWindowLong which decides if the system is 64-bit or not and calls the right one.

Declaration

public static long GetWindowLongWrapper(IntPtr hwnd, WindowLongIndex index)

Parameters

Type	Name	Description
IntPtr	hwnd	IntPtr
WindowLongIndex	index	WindowLongIndex

Returns

Type	Description
System.Int64

GetWindowPlacement(IntPtr, ref WindowPlacement)

Get the WindowPlacement for the specified window

Declaration

public static bool GetWindowPlacement(IntPtr hWnd, ref WindowPlacement windowPlacement)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr
WindowPlacement	windowPlacement	WindowPlacement

Returns

Type	Description
System.Boolean	true if success

GetWindowRgn(IntPtr, SafeHandle)

See GetWindowRgn function

Declaration

public static RegionResults GetWindowRgn(IntPtr hWnd, SafeHandle hRgn)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr
SafeHandle	hRgn	SafeHandle

Returns

Type	Description
RegionResults	RegionResults

GetWindowTextLength(IntPtr)

Declaration

public static int GetWindowTextLength(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd

Returns

Type	Description
System.Int32

GetWindowThreadProcessId(IntPtr, out Int32)

Declaration

public static int GetWindowThreadProcessId(IntPtr hWnd, out int processId)

Parameters

Type	Name	Description
IntPtr	hWnd
System.Int32	processId

Returns

Type	Description
System.Int32

IsIconic(IntPtr)

Return true if the specified window is minimized

Declaration

public static bool IsIconic(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr for the hWnd

Returns

Type	Description
System.Boolean	true if minimized

IsWindow(IntPtr)

Determines whether the specified window handle identifies an existing window.

Declaration

public static bool IsWindow(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	A handle to the window to be tested.

Returns

Type	Description
System.Boolean	If the window handle identifies an existing window, the return value is true. If the window handle does not identify an existing window, the return value is false.

IsWindowVisible(IntPtr)

Determines the visibility state of the specified window.

Declaration

public static bool IsWindowVisible(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	A handle to the window to be tested.

Returns

Type	Description
System.Boolean	If the specified window, its parent window, its parent's parent window, and so forth, have the WS_VISIBLE style, the return value is nonzero. Otherwise, the return value is zero. Because the return value specifies whether the window has the WS_VISIBLE style, it may be nonzero even if the window is totally obscured by other windows. Remarks: The visibility state of a window is indicated by the WS_VISIBLE style bit. When WS_VISIBLE is set, the window is displayed and subsequent drawing into it is displayed as long as the window has the WS_VISIBLE style. Any drawing to a window with the WS_VISIBLE style will not be displayed if the window is obscured by other windows or is clipped by its parent window.

IsZoomed(IntPtr)

Return true if the specified window is maximized

Declaration

public static bool IsZoomed(IntPtr hwnd)

Parameters

Type	Name	Description
IntPtr	hwnd	IntPtr for the hWnd

Returns

Type	Description
System.Boolean	true if maximized

MapWindowPoints(IntPtr, IntPtr, ref POINT, Int32)

Declaration

public static int MapWindowPoints(IntPtr hwndFrom, IntPtr hwndTo, ref POINT lpPoints, int cPoints)

Parameters

Type	Name	Description
IntPtr	hwndFrom
IntPtr	hwndTo
POINT	lpPoints
System.Int32	cPoints

Returns

Type	Description
System.Int32

MonitorFromRect(ref RECT, MonitorFrom)

The MonitorFromRect function retrieves a handle to the display monitor that has the largest area of intersection with a specified rectangle. see MonitorFromRect function

Declaration

public static IntPtr MonitorFromRect(ref RECT rect, MonitorFrom monitorFrom)

Parameters

Type	Name	Description
RECT	rect	A RECT structure that specifies the rectangle of interest in virtual-screen coordinates.
MonitorFrom	monitorFrom	MonitorFromRectFlags

Returns

Type	Description
IntPtr	HMONITOR handle

MonitorFromWindow(IntPtr, MonitorFrom)

See MonitorFromWindow function The MonitorFromWindow function retrieves a handle to the display monitor that has the largest area of intersection with the bounding rectangle of a specified window.

Declaration

public static IntPtr MonitorFromWindow(IntPtr hwnd, MonitorFrom monitorFrom)

Parameters

Type	Name	Description
IntPtr	hwnd
MonitorFrom	monitorFrom	MonitorFromFlags

Returns

Type	Description
IntPtr	IntPtr for the monitor

PrintWindow(IntPtr, IntPtr, PrintWindowFlags)

See PrintWindow function

Declaration

public static bool PrintWindow(IntPtr hwnd, IntPtr hDc, PrintWindowFlags printWindowFlags)

Parameters

Type	Name	Description
IntPtr	hwnd	IntPtr
IntPtr	hDc	IntPtr
PrintWindowFlags	printWindowFlags	PrintWindowFlags

Returns

Type	Description
System.Boolean	bool

ReleaseCapture()

Declaration

public static bool ReleaseCapture()

Returns

Type	Description
System.Boolean

ReleaseDC(IntPtr, IntPtr)

Declaration

public static bool ReleaseDC(IntPtr hWnd, IntPtr hDC)

Parameters

Type	Name	Description
IntPtr	hWnd
IntPtr	hDC

Returns

Type	Description
System.Boolean

SendMessage(IntPtr, WindowsMessages, ScrollBarCommands, Int32)

Used for WM_VSCROLL and WM_HSCROLL

Declaration

public static int SendMessage(IntPtr hWnd, WindowsMessages windowsMessage, ScrollBarCommands scrollBarCommand, int lParam)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr
WindowsMessages	windowsMessage	WindowsMessages
ScrollBarCommands	scrollBarCommand	ScrollBarCommands
System.Int32	lParam

Returns

Type	Description
System.Int32	0

SendMessage(IntPtr, WindowsMessages, SysCommands, IntPtr)

Declaration

public static IntPtr SendMessage(IntPtr hWnd, WindowsMessages windowsMessage, SysCommands sysCommand, IntPtr lParam)

Parameters

Type	Name	Description
IntPtr	hWnd
WindowsMessages	windowsMessage
SysCommands	sysCommand
IntPtr	lParam

Returns

Type	Description
IntPtr

SendMessage(IntPtr, WindowsMessages, IntPtr, IntPtr)

Declaration

public static IntPtr SendMessage(IntPtr hWnd, WindowsMessages windowsMessage, IntPtr wParam, IntPtr lParam)

Parameters

Type	Name	Description
IntPtr	hWnd
WindowsMessages	windowsMessage
IntPtr	wParam
IntPtr	lParam

Returns

Type	Description
IntPtr

SendMessage(IntPtr, WindowsMessages, IntPtr, String)

Declaration

public static IntPtr SendMessage(IntPtr hWnd, WindowsMessages windowsMessage, IntPtr wParam, string lParam)

Parameters

Type	Name	Description
IntPtr	hWnd
WindowsMessages	windowsMessage
IntPtr	wParam
System.String	lParam

Returns

Type	Description
IntPtr

SendMessage(IntPtr, WindowsMessages, Int32, StringBuilder)

Used for WM_GETTEXT

Declaration

public static IntPtr SendMessage(IntPtr hWnd, WindowsMessages windowsMessage, int wParam, StringBuilder lParam)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr for the Window handle
WindowsMessages	windowsMessage
System.Int32	wParam	int with the capacity of the string builder
StringBuilder	lParam	StringBuilder

Returns

Type	Description
IntPtr

SendMessage(IntPtr, WindowsMessages, Int32, Int32)

Used for calls where the arguments are int

Declaration

public static IntPtr SendMessage(IntPtr hWnd, WindowsMessages windowsMessage, int wParam, int lParam)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr for the Window handle
WindowsMessages	windowsMessage	WindowsMessages
System.Int32	wParam	int
System.Int32	lParam	int

Returns

Type	Description
IntPtr

SendMessageTimeout(IntPtr, UInt32, IntPtr, IntPtr, SendMessageTimeoutFlags, UInt32, out UIntPtr)

Declaration

public static IntPtr SendMessageTimeout(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam, SendMessageTimeoutFlags fuFlags, uint uTimeout, out UIntPtr lpdwResult)

Parameters

Type	Name	Description
IntPtr	hWnd
System.UInt32	Msg
IntPtr	wParam
IntPtr	lParam
SendMessageTimeoutFlags	fuFlags
System.UInt32	uTimeout
UIntPtr	lpdwResult

Returns

Type	Description
IntPtr

SetCapture(IntPtr)

Declaration

public static IntPtr SetCapture(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd

Returns

Type	Description
IntPtr

SetClipboardViewer(IntPtr)

Declaration

public static IntPtr SetClipboardViewer(IntPtr hWndNewViewer)

Parameters

Type	Name	Description
IntPtr	hWndNewViewer

Returns

Type	Description
IntPtr

SetFocus(IntPtr)

Sets the keyboard focus to the specified window. The window must be attached to the calling thread's message queue.

Declaration

public static IntPtr SetFocus(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	A handle to the window that will receive the keyboard input. If this parameter is NULL, keystrokes are ignored.

Returns

Type	Description
IntPtr	IntPtr If the function succeeds, the return value is the handle to the window that previously had the keyboard focus. If the hWnd parameter is invalid or the window is not attached to the calling thread's message queue, the return value is NULL. To get extended error information, call GetLastError.

SetForegroundWindow(IntPtr)

Set the current foreground window

Declaration

public static bool SetForegroundWindow(IntPtr hWnd)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr with the handle to the window

Returns

Type	Description
System.Boolean	bool

SetParent(IntPtr, IntPtr)

See SetParent function Changes the parent window of the specified child window.

Declaration

public static IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent)

Parameters

Type	Name	Description
IntPtr	hWndChild	IntPtr
IntPtr	hWndNewParent	IntPtr

Returns

Type	Description
IntPtr	If the function succeeds, the return value is a handle to the previous parent window. If the function fails, the return value is NULL. To get extended error information, call GetLastError.

SetScrollInfo(IntPtr, ScrollBarTypes, ref ScrollInfo, Boolean)

See SetScrollInfo for more information.

Declaration

public static bool SetScrollInfo(IntPtr hwnd, ScrollBarTypes scrollBar, ref ScrollInfo scrollInfo, bool redraw)

Parameters

Type	Name	Description
IntPtr	hwnd	IntPtr with the window handle
ScrollBarTypes	scrollBar	ScrollBarTypes
ScrollInfo	scrollInfo	ScrollInfo ref
System.Boolean	redraw	bool to specify if a redraw should be made

Returns

Type	Description
System.Boolean	bool if it worked

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SetWindowLongWrapper(IntPtr, WindowLongIndex, IntPtr)

Wrapper for the SetWindowLong which decides if the system is 64-bit or not and calls the right one.

Declaration

public static void SetWindowLongWrapper(IntPtr hwnd, WindowLongIndex index, IntPtr styleFlags)

Parameters

Type	Name	Description
IntPtr	hwnd	IntPtr
WindowLongIndex	index	WindowLongIndex
IntPtr	styleFlags

SetWindowPlacement(IntPtr, ref WindowPlacement)

Set the WindowPlacement for the specified window

Declaration

public static bool SetWindowPlacement(IntPtr hWnd, ref WindowPlacement windowPlacement)

Parameters

Type	Name	Description
IntPtr	hWnd	IntPtr
WindowPlacement	windowPlacement	WindowPlacement

Returns

Type	Description
System.Boolean	true if the call was sucessfull

SetWindowPos(IntPtr, IntPtr, Int32, Int32, Int32, Int32, WindowPos)

Declaration

public static bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, WindowPos uFlags)

Parameters

Type	Name	Description
IntPtr	hWnd
IntPtr	hWndInsertAfter
System.Int32	X
System.Int32	Y
System.Int32	cx
System.Int32	cy
WindowPos	uFlags

Returns

Type	Description
System.Boolean

ShowScrollBar(IntPtr, ScrollBarTypes, Boolean)

See ShowScrollBar function for more information.

Declaration

public static bool ShowScrollBar(IntPtr hwnd, ScrollBarTypes scrollBar, bool show)

Parameters

Type	Name	Description
IntPtr	hwnd	IntPtr
ScrollBarTypes	scrollBar	ScrollBarTypes
System.Boolean	show	true to show, false to hide

Returns

Type	Description
System.Boolean	If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError.

ShowWindow(IntPtr, ShowWindowCommands)

See ShowWindow function

Declaration

public static bool ShowWindow(IntPtr hWnd, ShowWindowCommands nCmdShow)

Parameters

Type	Name	Description
IntPtr	hWnd	A handle to the window.
ShowWindowCommands	nCmdShow	ShowWindowCommands Controls how the window is to be shown. This parameter is ignored the first time an application calls ShowWindow, if the program that launched the application provides a STARTUPINFO structure. Otherwise, the first time ShowWindow is called, the value should be the value obtained by the WinMain function in its nCmdShow parameter. In subsequent calls, this parameter can be one of the following values.

Returns

Type	Description
System.Boolean	bool

SystemParametersInfo(SystemParametersInfoActions, UInt32, ref AnimationInfo, SystemParametersInfoBehaviors)

See SystemParametersInfo function For setting AnimationInfo

Declaration

public static bool SystemParametersInfo(SystemParametersInfoActions uiAction, uint uiParam, ref AnimationInfo animationInfo, SystemParametersInfoBehaviors fWinIni)

Parameters

Type	Name	Description
SystemParametersInfoActions	uiAction	SystemParametersInfoActions
System.UInt32	uiParam	A parameter whose usage and format depends on the system parameter being queried or set. For more information about system-wide parameters, see the uiAction parameter. If not otherwise indicated, you must specify zero for this parameter.
AnimationInfo	animationInfo	AnimationInfo
SystemParametersInfoBehaviors	fWinIni	SystemParametersInfoBehaviors

Returns

Type	Description
System.Boolean	bool

SystemParametersInfo(SystemParametersInfoActions, UInt32, IntPtr, SystemParametersInfoBehaviors)

See SystemParametersInfo function For setting an IntPtr

Declaration

public static bool SystemParametersInfo(SystemParametersInfoActions uiAction, uint uiParam, IntPtr pvParam, SystemParametersInfoBehaviors fWinIni)

Parameters

Type	Name	Description
SystemParametersInfoActions	uiAction	SystemParametersInfoActions
System.UInt32	uiParam	A parameter whose usage and format depends on the system parameter being queried or set. For more information about system-wide parameters, see the uiAction parameter. If not otherwise indicated, you must specify zero for this parameter.
IntPtr	pvParam	IntPtr
SystemParametersInfoBehaviors	fWinIni	SystemParametersInfoBehaviors

Returns

Type	Description
System.Boolean	bool

SystemParametersInfo(SystemParametersInfoActions, UInt32, StringBuilder, SystemParametersInfoBehaviors)

See SystemParametersInfo function For reading a string parameter

Declaration

public static bool SystemParametersInfo(SystemParametersInfoActions uiAction, uint uiParam, StringBuilder pvParam, SystemParametersInfoBehaviors fWinIni)

Parameters

Type	Name	Description
SystemParametersInfoActions	uiAction	SystemParametersInfoActions
System.UInt32	uiParam	A parameter whose usage and format depends on the system parameter being queried or set. For more information about system-wide parameters, see the uiAction parameter. If not otherwise indicated, you must specify zero for this parameter.
StringBuilder	pvParam	string
SystemParametersInfoBehaviors	fWinIni	SystemParametersInfoBehaviors

Returns

Type	Description
System.Boolean	bool

SystemParametersInfo(SystemParametersInfoActions, UInt32, String, SystemParametersInfoBehaviors)

See SystemParametersInfo function For setting a string parameter

Declaration

public static bool SystemParametersInfo(SystemParametersInfoActions uiAction, uint uiParam, string pvParam, SystemParametersInfoBehaviors fWinIni)

Parameters

Type	Name	Description
SystemParametersInfoActions	uiAction	SystemParametersInfoActions
System.UInt32	uiParam	A parameter whose usage and format depends on the system parameter being queried or set. For more information about system-wide parameters, see the uiAction parameter. If not otherwise indicated, you must specify zero for this parameter.
System.String	pvParam	string
SystemParametersInfoBehaviors	fWinIni	SystemParametersInfoBehaviors

Returns

Type	Description
System.Boolean	bool