🚀 go-pugleaf

Thank you very much!

It works!!!

Rony.

"Remy Lebeau (TeamB)" <no.spam@no.spam.com> wrote in message 
news:47e14683@newsgroups.borland.com...
>
> "Renald Yazmir" <renald@partmaker.com> wrote in message 
> news:47e13843@newsgroups.borland.com...
>
>> The code below works ok if when I draw transparent pict in the
>> child window. When I use it to draw pict on the menu it does
>> not draw at all.
>
> Your drawing code expects an HWND as input, from which an HDC is 
> retreived. But menu items do not have an HWND of their own.  You need to 
> change your code to draw onto the HDC that the DRAWITEMSTRUCT provides to 
> you, ie:
>
>    draw_transparent_picture_hwnd(lpdis->hDC, PICT_SAVE, &menu_rect, RGB(0, 
> 128, 128));
>
>    void draw_transparent_picture(HDC hdc, int pictid, RECT *rct, COLORREF 
> picture_background_color)
>    {
>        BITMAP bitmap;
>        COLORREF crOldBack   = 0;
>        HDC dcImage     = NULL;
>        HDC dcTrans     = NULL;
>        HBITMAP pOldBitmapImage  = NULL;
>        HBITMAP bitmapTrans   = NULL;
>        HBITMAP pOldBitmapTrans  = NULL;
>        HBITMAP hBitmap    = NULL;
>        HDC hMemDC     = NULL;
>
>        hMemDC = CreateCompatibleDC(hDC);
>        if( hMemDC == NULL )
>            return;
>
>        hBitmap = LoadBitmap(res_lib, MAKEINTRESOURCE(pictid));
>        if( hBitmap == NULL )
>            return;
>
>        crOldBack = SetBkColor(hdc, RGB(255, 255, 255));
>
>        // Create two memory dcs for the image and the mask
>        dcImage = CreateCompatibleDC(hdc);
>        dcTrans = CreateCompatibleDC(hdc);
>
>        // Select the image into the appropriate dc
>        pOldBitmapImage = (HBITMAP) SelectObject(dcImage, hBitmap);
>
>        // Create the mask bitmap
>        GetObject(hBitmap, sizeof(BITMAP), &bitmap);
>        bitmapTrans = CreateBitmap(bitmap.bmWidth, bitmap.bmHeight, 1, 1, 
> NULL);
>
>        // Select the mask bitmap into the appropriate dc
>        pOldBitmapTrans = (HBITMAP) SelectObject(dcTrans, bitmapTrans);
>
>        // Build mask based on transparent colour
>        SetBkColor(dcImage, picture_background_color);
>        BitBlt(dcTrans, 0, 0, bitmap.bmWidth, bitmap.bmHeight, dcImage, 0, 
> 0, SRCCOPY);
>
>        // Do the work - True Mask method - cool if not actual display
>        BitBlt(hdc, rct->left, rct->top, bitmap.bmWidth, bitmap.bmHeight, 
> dcImage, 0, 0, SRCINVERT);
>        BitBlt(hdc, rct->left, rct->top, bitmap.bmWidth, bitmap.bmHeight, 
> dcTrans, 0, 0, SRCAND);
>        BitBlt(hdc, rct->left, rct->top, bitmap.bmWidth, bitmap.bmHeight, 
> dcImage, 0, 0, SRCINVERT);
>
>        // Restore settings
>        SelectObject(dcImage, pOldBitmapImage);
>        SelectObject(dcTrans, pOldBitmapTrans);
>        SetBkColor(hdc, crOldBack);
>
>        DeleteDC (hMemDC);
>        DeleteDC (dcImage);
>        DeleteDC (dcTrans);
>    }
>
>
> Gambit
>