FiveTech Support Forums

#include "fivewin.ch"

#define LWA_ALPHA 2
#define GWL_EXSTYLE -20
#define WS_EX_LAYERED 524288
#define CS_DROPSHADOW 131072
#define GCL_STYLE -26

function main()
    LOCAL oDlg, nFactor :=0, btnmais, btnmenos, btnloop
    DEFINE DIALOG oDlg TITLE "Dialogos con sombra" pixel from 0, 0 to 400, 400 
    ACTIVATE DIALOG oDlg CENTER on init PonSombra(odlg) //on paint CallFactor(@nFactor,odlg)
return nil

static function PonSombra(odlg)
    local nInt:=0
    nInt:=SetClassLong(oDlg:hWnd,GCL_STYLE,nOr(GetClassLong(odlg:hWnd,GCL_STYLE),CS_DROPSHADOW))
//    msginfo(nInt)
return
static function callfactor(nFactor,odlg)
    local i:=0
    
    for nFactor = 1 to 255 step 1
        SETTRANSP( oDlg, nFactor )
        sysrefresh()
        if nFactor = 1 
            odlg:nWidth:=400
            odlg:nHeight:=400
            WndCenter( odlg:hWnd )
            sysrefresh()
        end if
    next i
    for i = 1 to 1000000 step 0.5
    next i
    for nFactor = 255 to 1 step -1
        SETTRANSP( oDlg, nFactor )
        sysrefresh()
    end if
    oDlg:end()
return

static function SETTRANSP( oDlg, nFactor )
    SETWINDOWLONG( oDlg:hWnd, GWL_EXSTYLE, NOR( GETWINDOWLONG( oDlg:hWnd,GWL_EXSTYLE ), WS_EX_LAYERED ) )
    SETLAYEREDWINDOWATTRIBUTES( oDlg:hWnd, , nFactor, LWA_ALPHA )
RETURN NIL

static function TRANSPAR( oDlg, nFactor, Sinal, oBtn )
    if Sinal = "+"
        if nFactor < 10 
            nFactor := 260 
        endif
        nFactor -= 5
    else
        if nFactor > 250 
            nFactor := 5 
        endif
        nFactor += 5
    end if
    SetWindowText( oDlg:hWnd, "Transparent dialog. Transparencia: " + alltrim(str(nFactor)) )
    SETLAYEREDWINDOWATTRIBUTES( oDlg:hWnd, , nFactor, LWA_ALPHA )
    sysrefresh()
return nil

static function TRANSLOOP( oDlg, nFactor, Sinal, oBtn )
    local X
    for X = 1 to 255 step 0.5
        SetWindowText( oDlg:hWnd, "Transparent dialog. Transparencia: " + alltrim(str(x)) )
        SetLayeredWindowAttributes( oDlg:hWnd, , x, LWA_ALPHA )
    next
    for X = 255 to 1 step -0.5
        SetWindowText( oDlg:hWnd, "Transparent dialog. Transparencia: " + alltrim(str(x)) )
        SetLayeredWindowAttributes( oDlg:hWnd, , x, LWA_ALPHA )
    next
    SetWindowText( oDlg:hWnd, "Transparent dialog. Transparencia: " + alltrim(str(nFactor)) )
    SETLAYEREDWINDOWATTRIBUTES( oDlg:hWnd, , nFactor, LWA_ALPHA )
    sysrefresh()
return NIL


DLL32 function SetLayeredWindowAttributes( hWnd As LONG, crKey As LONG, ;
bAlpha As LONG, dwFlags As LONG ) AS LONG PASCAL ;
from "SetLayeredWindowAttributes" lib "user32.DLL"

DLL32 function GetClassLong( hWnd As LONG, crKey As LONG) AS LONG PASCAL ;
from "GetClassLongA" lib "user32.DLL"

DLL32 function SetClassLong( hWnd As LONG, nValue As LONG, nNewValue As LONG) AS LONG PASCAL ;
from "SetClassLongA" lib "user32.DLL"
/*
DLL32 function GetFreeResources(nX AS LONG) AS LONG PASCAL from ;
"_MyGetFreeSystemResources32@4" Lib "RSRC32.DLL"*/