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Modify the window style specified in the InitInstance function so that the window can have scrollbars. You do this by adding the WS_VSCROLL and WS_HSCROLL styles, as shown in the following code:
/* Create a main window for this application instance. */
hWnd = CreateWindow (
TEXT("LEADWClass"),
TEXT("LEADTOOLS Sample Application"), /* Window title */
WS_OVERLAPPEDWINDOW|WS_VSCROLL|WS_HSCROLL, /* Window style */
CW_USEDEFAULT, /* Default horizontal position */
CW_USEDEFAULT, /* Default vertical position */
rWndSize.right - rWndSize.left, /* Window width */
rWndSize.bottom - rWndSize.top, /* Window height */
NULL, /* Overlapped windows have no parent */
NULL, /* Use the window class menu */
hInstance, /* This instance owns this window */
NULL /* Pointer not needed */
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