BUTTONBMP transparency

[TimStone]

I'm using REDEFINE BUTTONBMP BITMAP "HROK" ..... to place an alpha bitmap on a dialog. When it first displays, it shows a black background in the area which is supposed to be transparent. If I mouseover the button, it then changes to a transparent background. I would also like to have NOBORDER on the button, but that did not work.

Any ideas ?

[ukoenig]

Hello Tim,

All possible Settings :
There is a transparent-problem, using a Dialog-Image-Background ( doesn't work ).
Gradient, Color and Brush is OK.

Code: Select all | Expand

//------------------- RESOURCE - TEST -----------------------------------------

FUNCTION D_RESOUR()
local oBtn1, oBtn2, oBtn3
local oBtn4, oBtn5, oBtn6
local oBtn7, oBtn8, oBtn9
local oBtn10, oBtn11, oBtn12, oBtn13, oSay3, oBMP2

DEFINE CURSOR oCursorHand HAND

DEFINE DIALOG oDlg2 RESOURCE "DIALOG1" FONT oDlgFont ;
TRANSPARENT 

// Color
// -------
IF nSTYLE = 1
   D_COLOR( oDlg2 )   
ENDIF

// Style-Brush ( bricks, Borland ... )
// ---------------------------------------
IF nSTYLE = 3
   D_BRUSH1( oDlg2 ) 
ENDIF

// ImageBrush
// ----------------
IF nSTYLE = 4
   DB_IMAGE( oDlg2 ) 
ENDIF

// -----  Transparent NOBORDER ---------

REDEFINE BTNBMP oBtn1 ID 100 OF oDlg2 ;
NOBORDER ;
FILENAME c_path + "\project\" + D_BUTTON1 ;
ACTION MsgAlert( "Button-Click", "Button 1" ) ;
PROMPT "But.1" ;
FONT oButtFont ;
RIGHT
oBtn1:lTransparent := .T.   
oBtn1:cTooltip := "Button1"
oBtn1:SetColor( D_TCOLOR, )

REDEFINE BTNBMP oBtn2 ID 110 OF oDlg2 ;
NOBORDER ;
FILENAME c_path + "\project\" + D_BUTTON2 ;
ACTION MsgAlert( "Button-Click", "Button 2" ) ;
PROMPT "But.2" ;
FONT oButtFont ;
LEFT
oBtn2:lTransparent := .T.
oBtn2:cTooltip := "Button2"
oBtn2:SetColor( D_TCOLOR, )

REDEFINE BTNBMP oBtn3 ID 120 OF oDlg2 ;
NOBORDER ;
FILENAME c_path + "\project\" + D_BUTTON3 ;
ACTION MsgAlert( "Button-Click", "Button 3" ) ;
PROMPT "But.3" ;
FONT oButtFont ;
TOP
oBtn3:lTransparent := .T.
oBtn3:cTooltip := "Button3"
oBtn3:SetColor( D_TCOLOR, )

// -----  Transparent BORDER ---------

REDEFINE BTNBMP oBtn4 ID 130 OF oDlg2 ;
FILENAME c_path + "\project\" + D_BUTTON1 ;
ACTION MsgAlert( "Button-Click", "Button 4" ) ;
PROMPT "But.4" ;
FONT oButtFont ;
BOTTOM
oBtn4:lTransparent := .T.   
oBtn4:cTooltip := "Button4"
oBtn4:SetColor( D_TCOLOR, )

REDEFINE BTNBMP oBtn5 ID 140 OF oDlg2 ;
FILENAME c_path + "\project\" + D_BUTTON2 ;
ACTION MsgAlert( "Button-Click", "Button 5" ) ;
PROMPT "Centered" ;
FONT oButtFont ;
CENTER
oBtn5:lTransparent := .T.   
oBtn5:cTooltip := "Button5"
oBtn5:SetColor( 7138036, )
oBtn5:SetColor( D_TCOLOR, )

REDEFINE BTNBMP oBtn6 ID 150 OF oDlg2 ;
FILENAME c_path + "\project\" + D_BUTTON3 ;
ACTION MsgAlert( "Button-Click", "Button 6" ) ;
PROMPT " " 
oBtn6:lTransparent := .T.   
oBtn6:cTooltip := "Button6"
oBtn6:SetColor( D_TCOLOR, )

// -----  Style 2007 Transparent NOBORDER --------

REDEFINE BTNBMP oBtn7 ID 200 OF oDlg2 2007 ;
NOBORDER ;
FILENAME c_path + "\project\" + D_BUTTON1 ;
ACTION MsgAlert( "Button-Click", "Button 1" ) ;
PROMPT "But.1" ;
FONT oButtFont ;
RIGHT
oBtn7:cTooltip := "Button1"
oBtn7:SetColor( D_TCOLOR, )

REDEFINE BTNBMP oBtn8 ID 210 OF oDlg2 2007 ;
NOBORDER ;
FILENAME c_path + "\project\" + D_BUTTON2 ;
ACTION MsgAlert( "Button-Click", "Button 2" ) ;
PROMPT "But.2" ;
FONT oButtFont ;
LEFT
oBtn8:cTooltip := "Button2"
oBtn8:SetColor( D_TCOLOR, )

REDEFINE BTNBMP oBtn9 ID 220 OF oDlg2 2007 ;
NOBORDER ;
FILENAME c_path + "\project\" + D_BUTTON3 ;
ACTION MsgAlert( "Button-Click", "Button 3" ) ;
PROMPT "But.3" ;
FONT oButtFont ;
TOP
oBtn9:cTooltip := "Button3"
oBtn9:SetColor( D_TCOLOR, )

// -----  Style 2007 Transparent BORDER --------

REDEFINE BTNBMP oBtn10 ID 230 OF oDlg2 2007 ;
FILENAME c_path + "\project\" + D_BUTTON1 ;
ACTION MsgAlert( "Button-Click", "Button 4" ) ;
PROMPT "But.4" ;
FONT oButtFont ;
BOTTOM
oBtn10:cTooltip := "Button4"
oBtn10:SetColor( D_TCOLOR, )

REDEFINE BTNBMP oBtn11 ID 240 OF oDlg2 2007 ;
FILENAME c_path + "\project\" + D_BUTTON2 ;
ACTION MsgAlert( "Button-Click", "Button 5" ) ;
PROMPT "Centered" ;
FONT oButtFont ;
CENTER
oBtn11:cTooltip := "Button5"
oBtn11:SetColor( 7138036, )
oBtn11:SetColor( D_TCOLOR, )

REDEFINE BTNBMP oBtn12 ID 250 OF oDlg2 2007 ;
FILENAME c_path + "\project\" + D_BUTTON3 ;
ACTION MsgAlert( "Button-Click", "Button 6" ) 
oBtn12:cTooltip := "Button6"

// --------------
      
REDEFINE BTNBMP oBtn13 ID 300 OF oDlg2 2007 ;
FILENAME c_path + "\system\stop.bmp" ;
PROMPT "Close" ;
FONT oButtFont ;
ACTION ( lOPEN[3] := .F., oDlg2:End() )
oBtn13:lTransparent := .T.   
oBtn13:cTooltip := "Close"

REDEFINE SAY oSay3  PROMPT "Transparent Text" ID 260 OF oDlg2 FONT oButtFont ;
COLOR D_TCOLOR PIXEL  transparent adjust

AEval( oDlg2:aControls, { | o | o:oCursor := oCursorHand } )

// YOU can RESIZE the Buttons from Resource at Runtime !!!!
// D_MOVE = Gradient-Color-Position
// ---------------------------------------------------------------------

ACTIVATE DIALOG oDlg2 CENTERED NOWAIT ;
ON INIT ( oDlg2:Move( 100, 470, oDlg2:nWidth, oDlg2:nHeight, .f. ), ;
            oBtn1:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn2:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn3:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn4:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn5:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn6:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn7:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn8:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn9:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn10:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn11:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), ;
            oBtn12:SetSize( D_BUTTONH * 2, D_BUTTONV * 2, .T. ), oDlg2:Refresh() ) ;
ON PAINT ( IIF( nSTYLE = 2,  ;
   ( D_GRADIENT( hDC, oDlg2, .T. ), ;
     GradBrush( oDlg2, { { D_MOVE, D_COLOR1, D_COLOR2 },;
     { D_MOVE, D_COLOR2, D_COLOR1 } }, .T. ) ), NIL ), ;
     IIF( nSTYLE = 5,   DL_IMAGE( hDC, oDlg2 ), NIL ), ;
          D_ALPHA( hDC, D_BUTTON1, 55, 430 ), ;
          D_ALPHA( hDC, D_BUTTON2, 190, 430 ), ;
          D_ALPHA( hDC, D_BUTTON3, 330, 430 ) )

RETURN NIL

// -------------- DIALOG - GRADIENT --------------------

STATIC FUNCTION D_GRADIENT( hDC, oDlg, lDirect )
local aGrad := { { D_MOVE, D_COLOR1, D_COLOR2 }, ;  
   { D_MOVE, D_COLOR2, D_COLOR1 } }    

IF lDirect = .T.
   GradientFill( hDC,  0, 0, oDlg:nHeight, oDlg:nWidth, aGrad, .T. )
ELSE
   GradientFill( hDC,  0, 0, oDlg:nHeight, oDlg:nWidth, aGrad, .F. )
ENDIF
RELEASEDC( hDC )

RETURN NIL

// -------------------------------

FUNCTION GradBrush( oDlg, aColors , nDir)
local hDC, hBmp, hBmpOld , nWidth , nHeight, lDir

DEFAULT lDir := .T.
IF nDir = 1
   lDir := .T.
ELSE
   lDir := .F.
ENDIF

if Empty( oDlg:oBrush:hBitmap )
      nHeight := if(lDir,oDlg:nHeight,1)
      nWidth  := if(lDir,1,oDlg:nWidth)
      hDC = CreateCompatibleDC( oDlg:GetDC() )
      hBmp = CreateCompatibleBitMap( oDlg:hDC, nWidth, nHeight )
      hBmpOld = SelectObject( hDC, hBmp )
      GradientFill( hDC, 0, 0, nHeight, nWidth, aColors,lDir )
      DeleteObject( oDlg:oBrush:hBrush )
      oDlg:oBrush:hBitmap = hBmp
      oDlg:oBrush:hBrush = CreatePatternBrush( hBmp )
      SelectObject( hDC, hBmpOld )
      oDlg:ReleaseDC()
endif

RETURN NIL

// ------------- DIALOG - COLOR ----------------------------------

STATIC FUNCTION D_COLOR( oDlg )
local oCBrush

DEFINE BRUSH oCBrush  COLOR D_COLOR1
SET BRUSH OF oDlg TO oCBrush
RELEASE BRUSH oCBrush

RETURN NIL

//----------------- DIALOG - STYLE ---------------- 

FUNCTION D_BRUSH1( oDlg ) 
LOCAL oBrush

DEFINE BRUSH oBrush  STYLE "BORLAND"   

SET BRUSH OF oDlg TO oBrush
RELEASE BRUSH oBrush

RETURN NIL

//------------- IMAGE - BRUSH -------------------- 

FUNCTION DB_IMAGE( oDlg ) 
LOCAL oImage

DEFINE BRUSH oImage FILE c_path + "\project\" + D_BRUSH
SET BRUSH OF oDlg TO oImage
RELEASE BRUSH oImage

RETURN NIL

//------------- IMAGE - Background -------------------- 

STATIC FUNCTION DL_IMAGE(  hDC, oDlg ) 
LOCAL oImage1
LOCAL nWidth  := oDlg:nWidth()
LOCAL nHeight := oDlg:nHeight()

DEFINE IMAGE oImage1 FILE c_path + "\project\" + D_LOGO 
PalBmpDraw( hDC, 0, 0, oImage1:hBitmap, , nWIDTH, nHEIGHT, , .T. ) 
oDlg:ReleaseDC()

RETURN NIL



// --------------------------------------------------------------
// Using different BMP's for Focus, pressed, Caption ...
// --------------------------------------------------------------
REDEFINE BTNBMP oBtn ID 300 OF oDlg ;
PROMPT "Help" ;
FONT oBarFont ;
TOP ;
NOBORDER ;
FILENAME c_path + "\system\Info_A.bmp", ;
                  c_path + "\system\Info_P.bmp",  ;
                  c_path + "\system\Info_D.bmp",  ;
                  c_path + "\system\Info_M.bmp" ;
ACTION ( D_START(), ;
   IIF( FILE("ButtonHelp.exe"),  Winexec("ButtonHelp.exe" ), MsgAlert("Helpfile : ButtonHep.exe " ;
        + CRLF + "not found !", "ATTENTION") ) )
oBtn:lTransparent := .T.
oBtn:cTooltip := "2. Resource Preview"
oBtn:lBorder := .F. 

Best Regards
Uwe

[TimStone]

Are you saying that BTNBMP will not work properly against an image background ?

Thanks for all of the examples.

[ukoenig]

Tim

I tested all possible Combinations.
Transparent button on Image-Background didn't work.
It is the same Example from above but with Image.
Maybe a Solution for the Problem ?

The Result with Image-background. Option 2007 works :


With Ribbonbar, I got the same Button-problem.
A Brush-background works :


Not transparent on Image-background :

Code: Select all | Expand

#include 'fivewin.ch'
#include 'ribbon.ch'
#include 'Image.ch'

function Main()
local oDlg, oGrp, oBtn, oImg, hDC

DEFINE DIALOG oDlg SIZE 440, 200 // TRANSPARENT

DB_IMAGE( oDlg ) // BMP-brush

// DEFINE IMAGE oImg FILE "backgrd.jpg" 

@ 15,50 RBGROUP oGrp PROMPT 'Transparent' SIZE 100,50 // TRANSPARENT

@ 15,120 RBBTN oBtn PROMPT 'Button' SIZE 40, 40 NORMAL;
BITMAP "Video.bmp" TRANSPARENT ROUND

ACTIVATE DIALOG oDlg CENTERED // ;
*ON PAINT( PalBmpDraw( hDC, 0, 0, oImg:hBitmap ) )

return nil
 
//------------- BMP - BRUSH -------------------- 

FUNCTION DB_IMAGE( oDlg ) 
LOCAL oImage

DEFINE BRUSH oImage FILE "Paper.bmp"
SET BRUSH OF oDlg TO oImage
RELEASE BRUSH oImage

RETURN NIL
 

Best regards
Uwe

[TimStone]

I was using BUTTONBMP BITMAP .... and had the problem.

I went to BTNBMP and made it NOBORDER TRANSPARENT and it does work.

I'm using a .BMP image in the resource as a BRUSH and it works.

At least I have it under control now. Thanks.

[nageswaragunupudi]

>>
There is a transparent-problem, using a Dialog-Image-Background ( doesn't work ).
Gradient, Color and Brush is OK.
>>
This is the reason, I advise converting image as brush and use it as background instead of painting image in the paint method.