CREATESTRUCT Structure

The latest version of this topic can be found at CREATESTRUCT Structure.

The CREATESTRUCT structure defines the initialization parameters passed to the window procedure of an application.

Syntax

typedef struct tagCREATESTRUCT {  
    LPVOID lpCreateParams;  
    HANDLE hInstance;  
    HMENU hMenu;  
    HWND hwndParent;  
    int cy;  
    int cx;  
    int y;  
    int x;  
    LONG style;  
    LPCSTR lpszName;  
    LPCSTR lpszClass;  
    DWORD dwExStyle;  
} CREATESTRUCT;  

Parameters

lpCreateParams
Points to data to be used to create the window.

hInstance
Identifies the module-instance handle of the module that owns the new window.

hMenu
Identifies the menu to be used by the new window. If a child window, contains the integer ID.

hwndParent
Identifies the window that owns the new window. This member is NULL if the new window is a top-level window.

cy
Specifies the height of the new window.

cx
Specifies the width of the new window.

y
Specifies the y-coordinate of the upper left corner of the new window. Coordinates are relative to the parent window if the new window is a child window; otherwise coordinates are relative to the screen origin.

x
Specifies the x-coordinate of the upper left corner of the new window. Coordinates are relative to the parent window if the new window is a child window; otherwise coordinates are relative to the screen origin.

style
Specifies the new window's style.

lpszName
Points to a null-terminated string that specifies the new window's name.

lpszClass
Points to a null-terminated string that specifies the new window's Windows class name (a WNDCLASS structure; for more information, see the Windows SDK).

dwExStyle
Specifies the extended style for the new window.

Requirements

Header: winuser.h

See Also

Structures, Styles, Callbacks, and Message Maps
CWnd::OnCreate