Class NativeHelper

Namespace

Riverside.Toolkit.Helpers

Assembly

Riverside.Toolkit.dll

Provides helper methods for native interop.

public static class NativeHelper

Inheritance

object

NativeHelper

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Fields

GW_CHILD

public const uint GW_CHILD = 5

Field Value

uint

GW_HWNDNEXT

public const uint GW_HWNDNEXT = 2

Field Value

uint

HORZRES

public const int HORZRES = 8

Field Value

int

LOGPIXELSX

public const int LOGPIXELSX = 88

Field Value

int

MONITOR_DEFAULTTONEAREST

public const int MONITOR_DEFAULTTONEAREST = 2

Field Value

int

MONITOR_DEFAULTTOPRIMARY

public const int MONITOR_DEFAULTTOPRIMARY = 1

Field Value

int

VERTRES

public const int VERTRES = 10

Field Value

int

WM_LBUTTONDOWN

public const int WM_LBUTTONDOWN = 513

Field Value

int

WM_LBUTTONUP

public const int WM_LBUTTONUP = 514

Field Value

int

WM_MOUSEMOVE

public const int WM_MOUSEMOVE = 512

Field Value

int

Methods

GetDC(nint)

Retrieves a handle to a device context (DC) for the client area of a specified window or for the entire screen.

public static extern nint GetDC(nint hWnd)

Parameters

hWnd nint

A handle to the window whose DC is to be retrieved.

Returns

nint

The handle to the DC for the specified window's client area.

GetDeviceCaps(nint, int)

Retrieves device-specific information for the specified device.

public static extern int GetDeviceCaps(nint hdc, int nIndex)

Parameters

hdc nint

A handle to the DC.

nIndex int

The item to be returned.

Returns

int

The value of the specified item.

GetXFromLParam(nint)

Extracts the X-coordinate from the lParam parameter of a window message.

public static int GetXFromLParam(nint lParam)

Parameters

lParam nint

The lParam parameter of a window message.

Returns

int

The X-coordinate.

GetYFromLParam(nint)

Extracts the Y-coordinate from the lParam parameter of a window message.

public static int GetYFromLParam(nint lParam)

Parameters

lParam nint

The lParam parameter of a window message.

Returns

int

The Y-coordinate.

ReleaseDC(nint, nint)

Releases a device context (DC), freeing it for use by other applications.

public static extern int ReleaseDC(nint hWnd, nint hDC)

Parameters

hWnd nint

A handle to the window whose DC is to be released.

hDC nint

A handle to the DC to be released.

Returns

int

The return value indicates whether the DC was released.