MDICREATESTRUCT

3.0 

typedef struct tagMDICREATESTRUCT {     /* mdic */
    LPCSTR    szClass;
    LPCSTR    szTitle;
    HINSTANCE hOwner;
    int       x;
    int       y;
    int       cx;
    int       cy;
    DWORD     style;
    LPARAM    lParam;
} MDICREATESTRUCT;

The MDICREATESTRUCT structure contains information about the class, title, owner, location, and size of a multiple document interface (MDI) child window.

Members

szClass

Contains a long pointer to the application-defined class of the MDI child window.

szTitle

Contains a long pointer to the window title of the MDI child window.

hOwner

Identifies the instance handle of the application creating the MDI child window.

x

Specifies the initial position of the left side of the MDI child window. If this member is set to CW_USEDEFAULT, the MDI child window is assigned a default horizontal position.

y

Specifies the initial position of the top edge of the MDI child window. If this member is set to CW_USEDEFAULT, the MDI child window is assigned a default vertical position.

cx

Specifies the initial width of the MDI child window. If this member is set to CW_USEDEFAULT, the MDI child window is assigned a default width.

cy

Specifies the initial height of the MDI child window. If this member is set to CW_USEDEFAULT, the MDI child window is assigned a default height.

style

Specifies additional styles for the MDI child window. If the window was created with the MDIS_ALLCHILDSTYLES window style, the style member may be any combination of the window styles documented with the CreateWindow function. Otherwise, it may be one or more of the following values:

Value Meaning

WS_MINIMIZE MDI child window is created in a minimized state.
WS_MAXIMIZE MDI child window is created in a maximized state.
WS_HSCROLL MDI child window is created with a horizontal scroll bar.
WS_VSCROLL MDI child window is created with a vertical scroll bar.

lParam

Specifies an application-defined 32-bit value.

Comments

When the MDI child window is created, Windows sends the WM_CREATE message to the window. The lParam parameter of the WM_CREATE message contains a pointer to a CREATESTRUCT structure. The lpCreateParams member of CREATESTRUCT contains a pointer to the MDICREATESTRUCT structure passed with the WM_MDICREATE message that created the MDI child window.

See Also

CREATESTRUCT