ArcTo

The ArcTo function draws an elliptical arc.

Arc

The Arc function draws an elliptical arc.

AppendMenu

The AppendMenu function appends a new item to the end of the specified menu bar, drop-down menu, submenu, or shortcut menu. You can use this function to specify the content, appearance, and behavior of the menu item.

AnimateWindow

The AnimateWindow function enables you to produce special effects when showing or hiding windows. There are three types of animation: roll, slide, and alpha-blended fade.

AngleArc

The AngleArc function draws a line segment and an arc. The line segment is drawn from the current position to the beginning of the arc. The arc is drawn along the perimeter of a circle with the given radius and center. The length of the arc is defined by the given start and sweep angles.

AlphaBlend

The AlphaBlend function displays bitmaps that have transparent or semitransparent pixels.

AllowSetForegroundWindow

The AllowSetForegroundWindow function enables the specified process to set the foreground window using the SetForegroundWindow function.

AllocateAndInitializeSid

The AllocateAndInitializeSid function allocates and initializes a security identifier (SID) with up to eight subauthorities.

AdjustWindowRectEx

The AdjustWindowRectEx function calculates the required size of the window rectangle, based on the desired size of the client rectangle. The window rectangle can then be passed to the CreateWindowEx function to create a window whose client area is the desired size.

AdjustWindowRect

The AdjustWindowRect function calculates the required size of the window rectangle, based on the desired client-rectangle size. The window rectangle can then be passed to the CreateWindow function to create a window whose client area is the desired size.

AdjustTokenPrivileges

The AdjustTokenPrivileges function enables or disables privileges in the specified access token. Enabling or disabling privileges in an access token requires TOKEN_ADJUST_PRIVILEGES access.

AddFontResource

The AddFontResource function adds the font resource from the specified file to the system font table. The font can subsequently be used for text output by any Win32-based application.

AddAce

The AddAce function adds one or more ACEs to a specified ACL. An ACE is an access-control entry. An ACL is an access-control list.

AddAccessDeniedAce

The AddAccessDeniedAce function adds an access-denied ACE to an ACL. The access is denied to a specified SID. To control whether the new ACE can be inherited by child objects, use the AddAccessDeniedAceEx function.

AddAccessAllowedAce

The AddAccessAllowedAce function adds an access-allowed ACE to an ACL. The access is granted to a specified SID. To control whether the new ACE can be inherited by child objects, use the AddAccessAllowedAceEx function.