GDI GUI fade.

[edumanilha]

Hi, everyone!

I Put a slider into my GDI GUI, but I can't make it transparent...I tried some examples and everything...I tried with winapi redraw:
 

_WinAPI_RedrawWindow($hGUI4, 0, 0, $RDW_UPDATENOW)
;Your Code must lie in it
_WinAPI_RedrawWindow($hGUI4, 0, 0, $RDW_VALIDATE)

and the setbitmap func:
 

Func _SetBitmap($hGUI, $hImage, $iOpacity)
    ;Func _SetBitmap($hGUI, $hImage, $iOpacity, $n_width = 200, $n_height = 200)
    Local $hScrDC, $hMemDC, $hBitmap, $hOld, $pSize, $tSize, $pSource, $tSource, $pBlend, $tBlend

    $hScrDC = _WinAPI_GetDC(0)
    $hMemDC = _WinAPI_CreateCompatibleDC($hScrDC)
    $hBitmap = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImage)
    $hOld = _WinAPI_SelectObject($hMemDC, $hBitmap)
    $tSize = DllStructCreate($tagSIZE)
    $pSize = DllStructGetPtr($tSize)
    DllStructSetData($tSize, "X", _GDIPlus_ImageGetWidth($hImage))
    DllStructSetData($tSize, "Y", _GDIPlus_ImageGetHeight($hImage))
    ;DllStructSetData($tSize, "X", $n_width)
    ;DllStructSetData($tSize, "Y", $n_height)
    $tSource = DllStructCreate($tagPOINT)
    $pSource = DllStructGetPtr($tSource)
    $tBlend = DllStructCreate($tagBLENDFUNCTION)
    $pBlend = DllStructGetPtr($tBlend)
    DllStructSetData($tBlend, "Alpha", $iOpacity)
    DllStructSetData($tBlend, "Format", 1)
    _WinAPI_UpdateLayeredWindow($hGUI, $hScrDC, 0, $pSize, $hMemDC, $pSource, 0, $pBlend, $ULW_ALPHA)
    _WinAPI_ReleaseDC(0, $hScrDC)
    _WinAPI_SelectObject($hMemDC, $hOld)
    _WinAPI_DeleteObject($hBitmap)
    _WinAPI_DeleteDC($hMemDC)
    _GDIPlus_ImageDispose($hImage)
EndFunc   ;==>_SetBitmap

And some dll example but from a very old topic...

With winapi redraw, a black square appears on my image...And with setbitmap my script froze...

WinSetTrans($hGUI5, "", GUICtrlRead($iSlider))
WinSetTrans($hGUI6, "", GUICtrlRead($iSlider))
_SetBitmap($SplashGUIlogo, $hSplashlogo,GUICtrlRead($iSlider))
 

Can anyone please give me a hand?

Thanks in advance!

 

Edited April 17, 2020 by edumanilha