How to load image(bitmap, png, ICON not metter) with tranceparent background on static control or a window. In win32

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Win32

PNG

WinAPI

<img src="http://i.imgur.com/g0VJDDn.gif?1" title="source: imgur.com" />

http://imgur.com/g0VJDDn[^]
Hi everyone! I am working on Win32 program that reads DirectInput gamepad, and I wont to show position of each stick on the screen, and here is main problem I cant make background of static controls which represents position of stick, to be transparent.
I tried loading ICONS, bitmap, tried different settings but background always white or black. Now I`m learning about GDI+ library, I found many articles on CodeProject about loading PNGs, but I don`t know how to use it.
And second question I using code below to set transparency of static text contronls which shows buttons pressed and values of X Y axis:

case WM_CTLCOLORSTATIC:                         
            SetBkMode((HDC)wParam, TRANSPARENT);               
            SetTextColor((HDC)wParam, RGB(38, 205, 247));      
            return (BOOL)GetStockObject(NULL_BRUSH);           
        break;

but now the text is not redrawn.

If You have some ideas or even know how to make it work please leave a comment.
Thx for Your time.