Windows API Calls for Powerbuilder 5.0

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GetBkColor( )

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This function returns the background color reference number of the window targeted. The Powerbuilder equivalent is as follows:
ulong l_color
l_color = w_main.BackColor

Global External Function:
FUNCTION ulong GetBkColor (ulong hwnd) LIBRARY "Gdi32.dll"

Script:
ulong l_handle, l_device, l_color
l_handle = handle(w_main)
l_device = GetDC(l_handle)
l_color = GetBkColor(l_device)

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