typedef struct tagCREATESTRUCT {
LPSTR lpCreateParams;
HANDLE hInstance;
HANDLE hMenu;
HWND hwndParent;
int cy;
int cx;
int y;
int x;
LONG style;
LPSTR lpszName;
LPSTR lpszClass;
DWORD dwExStyle;
} CREATESTRUCT;
The CREATESTRUCT structure defines the parameters used to initialize a window. When a window is created, it receives a WM_CREATE message with a pointer to this structure. For more information, see CWnd::OnCreate.
lpCreateParams
Points to data to be used for creating 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.
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, the 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, the 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.
dwExStyle
Specifies extended style for the new window.