The GUITHREADINFO structure contains information about a graphical user interface (GUI) thread.

Syntax

typedef struct tagGUITHREADINFO {
    DWORD cbSize;
    DWORD flags;
    HWND hwndActive;
    HWND hwndFocus;
    HWND hwndCapture;
    HWND hwndMenuOwner;
    HWND hwndMoveSize;
    HWND hwndCaret;
    RECT rcCaret;
} GUITHREADINFO, *PGUITHREADINFO;

Members

cbSize

Specifies the size of this structure, in bytes. The caller must set this to sizeof(GUITHREADINFO).

flags

Specifies the thread state. This member can be one or more of the following values.

GUI_16BITTASK

Windows XP: Represents the thread's application type. This bit is set if the thread corresponds to a 16-bit application.

GUI_CARETBLINKING

Represents the caret's blink state. This bit is set if the caret is visible.

GUI_INMENUMODE

Represents the thread's menu state. This bit is set if the thread is in menu mode.

GUI_INMOVESIZE

Represents the thread's move state. This bit is set if the thread is in a move or size loop.

GUI_POPUPMENUMODE

Represents the thread's pop-up menu state. This bit is set if the thread has an active pop-up menu.

GUI_SYSTEMMENUMODE

Represents the thread's system menu state. This bit is set if the thread is in a system menu mode.

hwndActive

Handle to the active window within the thread.

hwndFocus

Handle to the window that has the keyboard focus.

hwndCapture

Handle to the window that has captured the mouse.

hwndMenuOwner

Handle to the window that owns any active menus.

hwndMoveSize

Handle to the window in a move or size loop.

hwndCaret

Handle to the window that is displaying the caret.

rcCaret

A RECT structure that describes the caret's bounding rectangle, in client coordinates, relative to the window specified by the hwndCaret member.

Remarks

This structure is used with the GetGUIThreadInfo function to retrieve information about the active window or a specified GUI thread.

Structure Information

Header	Declared in Winuser.h, include Windows.h
Minimum operating systems	Windows 98, Windows NT 4.0 with Service Pack 3

See Also

Windows Overview, GetGUIThreadInfo, RECT