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CREATESTRUCT Structure 

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


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 Platform SDK).

dwExStyle

Specifies the extended style for the new window.

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