Re: CSpinButtonCtrl, CTabCtrl transparent oder im Edelstahllook ?

Hi,


einen Transparent Blit, kann mit der GDI nur über umwegen erreichen,
das geht so:

TransparentBlt( HDC hdcDest, int nXDest, int nYDest, int nWidth,
int nHeight,int stretchx, int stretchy, HBITMAP hBitmap, int nXSrc, int
nYSrc,
COLORREF colorTransparent, HPALETTE hPal )
{
CDC dc, memDC, maskDC, tempDC;
dc.Attach( hdcDest );
maskDC.CreateCompatibleDC(&dc);
CBitmap maskBitmap;

//add these to store return of SelectObject() calls
CBitmap* pOldMemBmp = NULL;
CBitmap* pOldMaskBmp = NULL;
HBITMAP hOldTempBmp = NULL;

memDC.CreateCompatibleDC(&dc);
tempDC.CreateCompatibleDC(&dc);
CBitmap bmpImage;
bmpImage.CreateCompatibleBitmap( &dc, nWidth, nHeight );
pOldMemBmp = memDC.SelectObject( &bmpImage );

// Select and realize the palette
if( dc.GetDeviceCaps(RASTERCAPS) & RC_PALETTE && hPal )
{
::SelectPalette( dc, hPal, FALSE );
dc.RealizePalette();

::SelectPalette( memDC, hPal, FALSE );
}

hOldTempBmp = (HBITMAP) ::SelectObject( tempDC.m_hDC, hBitmap );

memDC.BitBlt( 0,0,nWidth, nHeight, &tempDC, nXSrc, nYSrc, SRCCOPY );
//memDC.StretchBlt(0,0,nWidth, nHeight, &tempDC, nXSrc, nYSrc, stretchx,
stretchy,SRCCOPY );

// Create monochrome bitmap for the mask
maskBitmap.CreateBitmap( nWidth, nHeight, 1, 1, NULL );
pOldMaskBmp = maskDC.SelectObject( &maskBitmap );
memDC.SetBkColor( colorTransparent );

// Create the mask from the memory DC
maskDC.BitBlt( 0, 0, nWidth, nHeight, &memDC, 0, 0, SRCCOPY );
//maskDC.StretchBlt( 0,0, nWidth, nHeight, &memDC, 0,0, stretchx,
stretchy,SRCCOPY );

// Set the background in memDC to black. Using SRCPAINT with black
// and any other color results in the other color, thus making
// black the transparent color
memDC.SetBkColor(RGB(0,0,0));
memDC.SetTextColor(RGB(255,255,255));
memDC.BitBlt(0, 0, nWidth, nHeight, &maskDC, 0, 0, SRCAND);
//memDC.StretchBlt( 0,0, nWidth, nHeight, &maskDC, 0,0, stretchx,
stretchy,SRCAND );

// Set the foreground to black. See comment above.
dc.SetBkColor(RGB(255,255,255));
dc.SetTextColor(RGB(0,0,0));
dc.BitBlt(nXDest, nYDest, nWidth, nHeight, &maskDC, 0, 0, SRCAND);
//dc.StretchBlt( nXDest, nYDest, nWidth, nHeight, &maskDC, 0,0,
stretchx, stretchy,SRCAND );

// Combine the foreground with the background
dc.BitBlt(nXDest, nYDest, nWidth, nHeight, &memDC, 0, 0, SRCPAINT);
//dc.StretchBlt(nXDest, nYDest, nWidth, nHeight, &memDC, 0,0, stretchx,
stretchy,SRCPAINT );


if (hOldTempBmp)
::SelectObject( tempDC.m_hDC, hOldTempBmp);
if (pOldMaskBmp)
maskDC.SelectObject( pOldMaskBmp );
if (pOldMemBmp)
memDC.SelectObject( pOldMemBmp );

dc.Detach();
}


Ich tätige derartige Operationen im Speicher
das kann so aussehen,

Kopiert ein Rechteck von QuallAdress nach ZielAdress ohne transparez zu
beachten
void CDraw::BltMap(DWORD soff,DWORD doff,DWORD width,WORD height)
{
__asm
{
mov ebx, this
mov edi, [ebx]CDraw.m_pTmp
mov ebx, [ebx]CDraw.m_Width
add edi, doff
mov esi, soff
mov edx, width
mov ax, height

add ebx, edx
shl ebx, 2

lp1: mov ecx,edx
rep movsd

sub edi,ebx
sub esi,ebx

dec ax
jnz short lp1
}
}


Kopiert ein Rechteck von QuallAdress nach ZielAdress , kopiert nicht farben
die r,g,b enthalten
void CDraw::BltColMap(DWORD soff,DWORD doff,DWORD width,WORD height,BYTE
r,BYTE g, BYTE b)
{
__asm
{
mov ebx, this
mov edi, [ebx]CDraw.m_pTmp;
mov edx, [ebx]CDraw.m_Width

add edi,doff
mov esi,soff
add edx,width
shl edx,2

xor ebx,ebx
mov bx,height

mainloop:
mov ecx,width

nextpt:
lodsd

//------------------------------ Begin
RGB --------------------------------------
red:
ror eax,0
cmp al,r
je processred
green:
ror eax,8
cmp al,g
je processgreen
blue:
ror eax,8
cmp al,b
je processblue

//--------------------------------------End
RGB -----------------------------------

ror eax,16
jmp putpix

//---- RGB
processor--------------------------------------------------------------
processred:
rol eax,0
jmp nextstep
processgreen:
rol eax,8
jmp nextstep
processblue:
rol eax,16
//---- END RGB
processor-----------------------------------------------------------

nextstep:
add edi,4
jmp next
putpix:
stosd
next:
dec ecx
jnz nextpt

sub esi,edx
sub edi,edx
dec bx
jnz mainloop
}
}





"Michael Andreas" <MichaelAndreas@xxxxxxxxxxxxxxxxxxxxxxxxx> schrieb im
Newsbeitrag news:43307470-63BE-4350-94AD-3A7A73D1F1B7@xxxxxxxxxxxxxxxx
Hi,

könnt Ihr mir einen Tipp geben, wie ich dir Objekte
CSpinButtonCtrl, CTabCtrl transparent oder im Edelstahllook
darstellen kann?

Danke Michael


.