What library should I include for this, because windows.h, stdlib.h, and commctrl.h aren't cutting it. Thanks in advance.

Code:
HWND CreateLabel(char caption[], char classname[], int x, int y, int height, int width)
{

HWND hwndButton;
hwndButton = CreateWindow(
    STATIC,   // predefined class
    caption,       // button text
    WS_VISIBLE | WS_CHILD | SS_SIMPLE,  // styles
    x,         // starting x position
    y,         // starting y position
    height,        // button width
    width,        // button height
    hwnd,       // parent window
    NULL,       // No menu
    (HINSTANCE) GetWindowLong(hwnd, GWL_HINSTANCE),
    NULL);      // pointer not needed

return hwndButton;
}